4400 Controller Operation & Parts Manual

08.90 NORRISEAL

CONTROLS lir...)...tdalftn.

(

OM 704005M

OPERATING and MAINTENANCE MANUAL

)

SERIES 4400 TYPE 72-44 & 72-46 INDICATING PNEUMATIC PRESSURE CONTROLLERS, TRANSMITTERS, AND

TEMPERATURE CONTROLLERS

Caution: Before disassembly or maintenance, all pressures in this device must be relieved. Failure to relieve pressures may result in personal injury or device damage. The resulting uncontrolled venting or spilling of line fluids may cause personal injury, loss of process control or environmental contamination.

INSTRUCTIONS

for OPERATION, INSTALLATION, MAINTENANCE AND CALIBRATION

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ORDERING INFORMATION 4.

1.

Specify Series 4400

2.

Specify which Type:

3.

For Type 72-46 specify temperature range and degrees in "P or -C"

72-44 for pressure 72-46 for temperature

Specify: A. Complete Model Code Number B. Range and Engineering Units C. For Non-Standard Units where "X" appears, specify required units D. Control Action (direct or reverse)

TYPE 72-44 PRESSURE CONTROLLER MODEL 72 44

n CONTROL MODE 0

15% Proc

15

MIN

200% Pto

4

oc-% P,ac 200% Prop 200% Pro

NEE NEN

ELEMENT RANGE .5 PSI C O

Rare

Prop Prop. Reset

75%

Ita

0

rs

3

5

12

P

0

0C, PSt

R

:00 PS

0 300 PS. T,

zr Ps. 6 3C PS.

PS'

0 - '60 PS

.

t

0 60 PSI 0-

OUTPUT 2

13 PS4

0

40C Pia

O 503 PS 0-600 PS 0-800 PS O 1000 SI -1500 PS - 2000 P PS

0.5000

TYPE F

X

et12.Pos. B' Piss 7. Yea b* '2.POS byPals AN: 1-...x.te Se! --urIrt or '44)os Bv.Pass 4-Pos. By Pest ac Lenote >s

:cove >

1

Vc PSI 30 1 y on Vac 0-30 P 30' -. Vac 0-100 P$I

A

ELEMENT MATERIAL Bronze 316 SST

ELEMENT TYPE 8

40,

IS

19912onsutt pantry'

C

Sanon 0, P

Z

mr.s, 0.aohristrir.msj Meta: ClActsciy. sc Sack Otapirtsr (0/P)

I

I

-

Mer.arn CO'

ete, J

S

"P

Buna N (Center 0) ENSpecial

1020 Constr. I ec tory, actory:

ni likonsal

mew 3teo-egrt (Suppressed Zero) Stec Diaor"sgrr (Pressure)

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* * NOTICE * * These instructions apply to various controllers and their operations, installation and maintenance. Information on variations not covered by these instructions should be reque*ted from NORRISEAL CONTROLS. The customer should be aware that an alternate means of protection of a monitored process may be necessary should this instrument fail.

* * RETURN OF INSTRUMENT * * If it becomes necessary to return the instrument for repair/warranty, customer must call NORRISEAL CONTROLS first for a Return Authorisation Number (RAN). The telephone number is (713) 466-3552. This will speed up the processing of the repairs and help assure a quick turnaround. When you call in, please have available the following information from your unit: SERIES NUMBER: TYPE NUMBER: MODEL NUMBER: SERIAL NUMBER: WARRANTY OR NOT: CONTACT PERSON: ADDRESS: PHONE NUMBER: EXACT DESCRIPTION OF THE PROBLEM:

It is much easier to solve a problem, especially an intermittent one, when the problem is well defined.

NORRISEAL charges a minimum of $60 for evaluating any unit sent in and not repaired or replaced. On units sent in as warranty but nothing is found to be wrong or the problem is one of operator carelessness (example: overpressure), which is not covered under the warranty customer will also be charged a minimum of $60.

* * REPLACEMENT PARTS * * Replacement parts should be ordered from NORRISEAL CONTROLS or a local NORRISEAL representative. Include the instrument Series Number, Type Number, Model Number, Serial Number and Part Number.

Thank you for purchasing from NORRISEAL CONTROLS and for helping us to better serve you.

For general information and inquiries, contact your local NORRISEAL distributor.

ii

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TABLE OF CONTENTS INSTALLATION Mounting of case Output connection ..

Supply connection Process Piping Process connection (pressure) Process connection (temperature) Elevation adjustments

1

I 1

3 3

PRINCIPLE OF OPERATION Low Bleed relay Set-point Proportional controller Differential Gap controller

3 3

Proportional + Rate controller Controller Diagram Proportional + Reset controller.

Proportional + Reset + Rate controller

SELECTION OF CONTROL ACTION Reversine action

3 3 3

4 5

5

TUNING CONTROLLER TO PROCESS Proportional controller (pressure) Proportional controller (temperature) Manual reset Differential Gap controller.

Multi -mode controllers Tuning Proportional + Reset controller Tuning Proportional + Rate controller Tuning Proportional + Reset + Rate controller

MANUAL CONTROL AND START UP Proportional controller Proportional + Reset controller Proportional + Rate controller Proportional + Reset + Rate controller

6 6 6

6 7 7 7

7

8 8 8 8

TROUBLE SHOOTING Process

8 8

Control Valve .......

Instrument Low output problems High output problem; Output cycling problems Trouble shooting table

9 9 9 9 9

MAINTENANCE General Relay Proportional controller Proportional + Reset controller Proportional + Rate controller Proportional + Reset + Rate controller

10 10 11

I1 12 12

iii

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MAINTENANCE (continued) Measuring element Calibration and tracking instructions for all elements Bourdon pressure elements Metal diaphragm pressure elements Slack diaphragm actuated pressure element.

Slack diaphragm actuated DIP, vacuum & compound elements High static pressure actuated DiP element Mercury actuated temperature element Organic liquid actuated temperature element Gas actuated temperature element Chassis Door Filter Fittings

SPECIAL CONTROLLERS Two position bypass controller Remote set controller Force balance slack diaphragm DIP controller

13 13 14 14 15 15 16 17 17 17 18 18

'I8

19 19, 20 21

REPLACEMENT PARTS LIST Bourdon tube pressure elements Metal diaphragm elements Mercury Thermal elements Organic Liquid thermal elements Gas Thermal elements Standard temperature ranges Temperature bulbs, unions & wells Slack diaphragm elements High static DIP elements Force Balance slack diaphragm DIP element Door & Case assemblies Chassis assemblies Relay Filter fittings Feedback Assemblies Replacement Part kits Output gauge assy. option Two position bypass switch/indicator External reset feedback option .., Mounting brackets Dripwell filter regulator High static DIP controller (outline dwg.)

Standard controller (outline dwg.)

Slack diaphragm controller (outline dwg.)

23, 24 25, 26 27 28 29 29 30 3I 32 33, 34 35. 36 37, 38 38 39, 40, 41 42 43 43 43 44 44 45 46 46

iv

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r

REMOTE SET PRESSURE LINE (OPTIONAL)

SUPPLY AIR

PLAIN

sins

r9

AIR FILTER

I

I

I

I

I

I

11,0 OUTSIDE

PROCESS

REGULATOR AND DR1PwELL (OPTIONAL)

or

VA

-

VENT

UNION CONNECTION

r%1 BuILONis

1.1

eroiNooiaLwrf

TEMPERATURE PROCESS

L

SCREEN

Smut - OFF

SEPARABLE

VALVE

SOCKE T

SUPPLY

1

PRESSURE PROCESS

OUTPUT

(PIG 2 TNRU FIG. 11 FOR PIPING ARRANGEMENTS) COCK

TO D/P UNIT II

I

TO 0/P UNIT

r-1-1

r- -'

NP FR DIAPHRAGM MOTOR VALVE

LP

LIQUID

LP

L__J

NI

L

LEVEL PROCESS

PLOW

Figure 1

INSTALLATION MOUNTING OF CASE The instrument should be mounted vertically on a panel,

Instrument requires clean, dry, oil-free air.

wall, pipe, or valve where it will be reasonably free from vibration shock and large fluctuations of

controller should be supplied through a standard instrument dripwell filter and a reducing regulator with automatic relief valve. The supply pressure must be regulated at:

temperature. Brackets for panel and surface mounting are standard. Wall, pipe and valve mounting brackets are optional (see outline drawing for mounting dimensions.

20 psi (140 kPa) 35 psi (240 kPa) 35 psi (240 kPa) 65 psi (450 kPa)

OUTPUT CONNECTION (See Fig. 1)

A porous metal output filter is supplied in the output connection of all multi-mode controllers. If the output of the controller is fed directly to a valve top the filter may be discarded. If the output is fed to a valve

Avoid getting dirt, pipe scale, burrs, chips, oil, pipe

Natural gas may be used to operate the controller if instrument case is sealed and a 1/2" pipe vent connection is tapped in the back. vent piping to outside air should open downward outside of the building to protect from rain and be screened to avoid entry of insects which may plug vent pipe. Any back pressure from vent obstruction will cause instrument to read low and control high when door is closed. Long or crooked vent lines should be of larger size.

SUPPLY CONNECTION (See Fig. 1) REFER PRESSURE LIMIT LABEL ATTACHED TO RELAY.

15 psi (100 kPa) output for 27 psi (186 kPa) output for 30 psi (200 kPa) output for 60 psi (400 kPa) output for

compound or any foreign matter into supply air lines as these may render instrument inoperative.

positioner or to a small valve, the filter should be left in the output as it contributes to control stability at proportional bands greater than 100%. For operation at narrower bands and where speed of response is important the filter may be removed.

BEFORE APPLYING SUPPLY AIR

Each

TO

1

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PROCESS PIPING

iill

P1111.1

ir

WINO. fah

Lot

:7..:

,

commas

I

...1 (Irmo

ols i....g cm

MICA. iag

1. moo

f on .

If run ea fnow

0,

(news

es f mos `

eaterat

MOD. 40 Lai

Ea I %MR 11. UmIlt

FIGURE 2

massat mom

satin

FIGURE 4

FIGURE 3

camtmem

COO

=I Ea

miaow witunlist

I ftre

i

i

wasstat sevaurive

FIGURE 5

mittens

El kl

ffl

rile. ants

II

it'Pes

-0

I

J

*ttliIs=

;

Las

Ponsuot mn se me

MINIM

MIK as UK

FIGURE 6

FIGURE 7

PitOCESS

FIGURE

COMMENT

.

FIGURE 9

FIGURE

Dry Gas

Valve "C" is not needed

Fig. 2 or Fig. 3

Wet Gas

Gate Valve and 1/2" or larger line tap

Fig. 2

Vapor (steam)

Instrument below line

Fig. 3 or Fig. 6

Vapor (steam)

Instrument above line

Fig. 2

Vapor (steam)

Rapid pressure fluctuations and low condensing temperature of vapor

Fig. 6

Vapor (steam)

Temperature exceeds 300째F (149째C)

Fig. 9

Vapor (steam)

Elevation exceeds 25 Ft. H2O (75kPa) Non-condensable vapor & high vapor pressure (SEE ELEVATION ADJUSTMENT).

Fig. 7

Liquid

Connect at side of line to avoid gas or vapor collecting at top of line or sediment at bottom.

Fig. 3

Liquid

Prevent gas or vapor entering riser (instrument should not be higher than 25 ft. (7.6 m) above line connection SEE ELEVATION ADJUSTMENT.

Fig. 8

2

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PROCESS CONNECTION (See rig. 2 thru

9)

(Pressure Controller) BEFORE APPLYING PROCESS REFER TO PRESSURE LIMIT LABEL ATTACHED TO INSTRUMENT.

PROPORTIONAL CONTROLLER (Fig. 10 - shown in reverse action ) With a decrease in process pressure the following occurs: 1.

Pressure connection is 114" NPT (sd).

2.

For corrosive fluids which would attack the process element it is

A.

desirable to use a chemical seal which isolates the measuring element from the corrosive medium. If seal is installed at different elevation from instrument, correction must be made SEE ELEVATION

3.

A I)/ liSTMENT.

5.

PROCESS CONNECTION (Temperature Controller)

7.

Install bulb in piping or apparatus at a point where good circulation or agitation is assured. This will keep lags to a minimum and will assure best possible control.

9.

When bulb is of union or separable socket type, install union hub or soeker. into the equipment find. Then insert bulb and lock in place with ettache4 swivel nut. Avoid sharp bends or kinks and never connect tubing.

ELEVATION ADJUSTMENT INS'7RUMENT SHOULD BE FREE OF TRAPPED AIR OR VAPOR BEFORE MAKING ELEVATION ADJUSTMENT

When a correction is necessary the process and setting pointers must be moved upscale when the instrument is above the process line and downscale when below until it reads line pressure instead of pressure at instrument level. The correction amounts to 1 PSI for 27.7" 1170 (6.9 kPa) and is proportional to the specific gravity of other liquids.

For remote chemical seal attachment (S.P. of tilling fluid is 0.9). The correction is I PSI for 30.8" H2O (7.7 kPa).

PRINCIPLE OF OPERATION LOW BLEED RELAY (Fig. 10) The low bleed relay is in equilibrium (neither feeding nor exhausting air) as long as the process is not changing. At equilibrium the lime

exerted by the nolo.le diaphragm equals the force exerted by the output diaphragm. A change in the process causes a change in the flapper wazzle gap thus producing a change of nozzle back pressure which changes the Come exerted by noule diaphragm. The force exerted by the nozzle diaphragm is not equal to the force exerted by the output diaphragm causing the valve stem to move to a new posi-

tion either opening the inlet port allowing supply air to enter the output or opening the exhaust port exhausting uutput air. Either of these changes enntinue until the force developed by the output diaphragm balances the force of the noodle diaphragm and equilibrium is restored.

SET POINT (Fig. 10) Control point setting is accomplished by turning set point knob to swing the entire outer movement up or down around pivot S. The setting motion is fed to the indicating movement by line EF and is shown by set pointer (red).

Process pointer (Black) rotates counterclockwise Kew) from a downward motion of Gil. Lever BCD rotates clockwise (evi) from a downward motion of

4.

6.

S.

10.

Arbor PP rotates cow causing flapper to restrict nozzle flow.

Supply pressure feeding dim restrictor expands [smile diaphragm.

Inlet port opens and exhaust port closes.

Output pressure on output gauge increases.

Feedback capsule expands moving link JL to the left.

Proportional link NM pivoting about M causes link JK to move upward.

Lever KC rotates ew about P causing lever BCD to rotate cow about B producing flapper motion offsetting input motion.

Equilibrium is reached with the change in output proportional to the change in input.

Proportionality (*sloe or band adjustment is determined by the angle LNM producing the necessary amount of feedback.

DIFFERENTIAL GAP CONTROLLER (Fig. 10) With hi in line with JK negative feedback is reduced to zero and essentially on off action results. If proportional dial is rotated to other quadrant, (position M') feedback motion becomes positive adding to

input from "A" with on and off points separated by the amount of feedback motion.

PROPORTIONAL + RATE CONTROLLER (Fig. 10) The function of the rate action is to produce a control correction earlier than would be possible with proportional action only. The sequence of operation is exactly as described for a proportional controller except the proportional feedback is replaced by a rate fecJhack With the rate valve fully open, the rate action is largely eliminated.

Increasing the restrictive effect of the rate valve will reduce the flow to the feedback capsule causing the controller to act temporarily like a narrow band controller. This brings the output pressure to its new value sooner. The greeter the restrictive erica (larger rate time) the greater will be this anticipatory effect.

In Fig. 10 with the nozzle and proportional dial in the positions shown, the proportional and rate controller will he reverse acting.

PROPORTIONAL + RESET CONTROLLER (F1II. 10) The function f the reset aetion is to eliminate the proportional offset between the measuring process and the sctpoinl and to accomplish this in the shortest possible lime without creating instability in the proportional control action.

Tire reset feedback is similar in appearance to the rule feedback except that the output pressure is also applied to the inside of the capsule. When the reset valve is shut, the reset action is eliminated and the controller operates as a proportional instrument. When the reset valve is set to the proper restriction the reset restriction and reset chamber form a resistance-capacity network which at first delays the balance across the capsule but in a definite time period products equilibrium and restores the process to the set point.

In Fig. 10, with the nowile and proportional dial in the positions shown, the proportional and reset controller will be reverse acting.

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CONTROLLER DIAGRAM PROCESS POINTER (BLACK;

PROCESS CONNECTION

SET POINTER (RED) OUTPUT GAUGE

PROCESS BOURDON

NOZZLE DIAPHRAGM

SUPPLY

AIR

SET POINT KNOB

FLAPPER D

\\110

C

NOZZLE

INNER MOVEMENT

RESTRICTOR

OVERTRAVEL

:\3p

SPRING INLET PORT

EXHAUST PORT

M

t

ZO NE

I

OUTER MOVEMENT

"A'

mop

ifr"..kcipr PROPORTIONAL FEEDBACK CAPSULE

ZONE "B" OUTPUT

PROPORTIONAL BAND

RATE CHAMBER

RESET CHAMBER

PROPORTIONAL RATE

PROPORTIONAL RESET

RATE VALVE

RESET VALVE RESET CHAMBER

PROPORTIONAL RESET RATE

RESET VALVE

RATE VALVE

Figure 10

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PROPORTIONAL CONTROLLER (Fig. 10)

+

RESET

+

RATE With the reset valve closed the instrument acts as a two mode controller (proportional + rate) as described in the previous section. As the reset valve is partially opened, output air is metered into the air

The function of the three mode controller (proportional reset and rite) is to eliminate off set, increase stability and reduce stabilization time.

With the rate and reset valve in series (reset restriction following rate restriction) overshooting on start up and instability due to too much resetting action are prevented because rate time will never exceed

chamber outside of the capsule causing the feedback to respond to the error between the process and set point.

reset time.

acting.

In Fig. 10, with the nozzle and proponional dial in the positions shown, the proportional + reset + rate controller will be reverse

SELECTION OF CONTROL ACTION IF AN AND THE

INCREASE IN PRESSURE OR

ACTION OF

TEMPERATURE

THE VALVE IS

MUST

THEN THE

AND THE

AND FOR THE FOLLOWING CONTROLLERS THE GREEN POINTER IS IN ZONE

ACTION OF THE

NOZZLE

CONTROLLER

POSITION

PROPORTIONAL OR

MUST BE

MUST BE

PROP. + RATE

DIRECT

G>

A-WHITE

(1)

B-BLACK

PROP. + RESET OR RESET

PROP.

RATE

OR DIFFERENTIAL GAP i

CLOSE VALVE

AIR TO CLOSE

OPEN VALVE

AIR TO OPEN

CLOSE VALVE

AIR TO OPEN

REVERSE

,

OPEN VALVE

AIR TO CLOSE

B-BLACK ,

A-WHITE

REVERSING ACTION Determine whether a rise in pressure or temperature should open or close the valve. Position the nozzle as shown in table and rotate the

proportional dial so that the green pointer is in the 'A' or 'B' sector

Supply air to controller is necessary for this operation. Loosen nozzle screw one half turn and rotate nozzle until it is pointing squarely at flapper blade. Tighten screw. Turn proportiorud dial to appropriate

for a given controller.

zone.

If output gauge does not show full supply pressure when flapper is held against noktle, readjust nozzle.

TUNING CONTROLLER TO PROCESS SET POINTER IRECH

PROCESS POINTER

IPLACKI

DIAL

OUTPUT GAUGE

NOZZLE

RELAY SET POINT KNOB

PROPORTIONAL DIAL FLAPPER

SYNCHRONIZING NUT

BANn

Figure 11

5

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PROPORTIONAL CONTROLLER

control valve or cuntroller. Sc e section on TROUBLE SH(SOTi14G. By controlling process manually it will become apparent whether difficulties are with k osuml system (instrument and valve) or with the proeess. See section on MANUAL CONTROL. Manual dad up may

(Pressure) Start up

turn on air and drain dripwell through its drain valve.

Adjust regulator to required supply pressure,* Adjust art pointer to desired operating point by turning set point knob.

also be used If automatic start up causes excessive overshooting.

TUNING PROPORTIONAL + RESET CONTROLLER

Witch control operation. if controlled pressure cycles, increase proportional band in steps until stable. Then increase by half of setting fora margin of stability. If 'amino] seems sluggish and wandering, reduce proportional band setting in steps until measurement is jittery or slightly cyclic. Increase proportional band in steps until staple then increase by half of setting for a margin of stability.

Note action of controller (reverse or direst). Set red pointer 30% above black pointer if direct, 30% below black pointer if reverse acting. Open reset valve fully by turning clockwise to stop. Hold for a few seconds, then set reset dial between 0.2 and 0.5 minutes per

Increasing proportional hand until just stable is not recommended as instability and cycling may result under slightly changed operating conditions.

repeat. Set proportional hand at 50% (green pointer), Turn on supply air. Output of controller should remain sere. Drain dripwell through its drain valve. Adjust regulator to required supply presaure. Set red pointer to coincide with black pointer. Output will slowly increase.

When output reaches inidspan**, quietly turn reset dial Output should hold at mid span. counterclockwise to atop.

Instrument is now operating as a proportiotial controller. Set red pointer to desired value. Watch control operation. If controlled variable cycles, widen proportional hand in steps until stable. Note period of oscillation of controlled variable when red pointer is moved

When continued adjustment does not bring prottem into control it is best too look for erratic behavior of process, control valve, or controller. See section on TROUBLE SHOOTING. By controlling process manually it will become apparent whether difficulties are with control system (instrument and valve) or with process. See section on MANUAL CONTROL.

a small amount up or down. The period is the time between two maximum or minimum peaks. If controlled variable is sluggish and wandering, reduce proportional hand setting in steps, until comp died variable is jittery or cycles a hit. Note period of cycling in minutes.

PROPORTIONAL CONTROLLER (Temperature) The procedure for adjusting a temperature controller is the same as for pressne. As most temperature control processes are much slower in responding than pressure, observation of the process will require more time.

Increase proportional hand to 2-2 1/2 times the hand setting which was obtained by preceding method. Reset valve may he set for the same time as the period of cycling.

AIANUAL RESET

The above settings are suggested values and may be varied depending on the specific requirements of the process. For more stability, widen proportional hand aralion reset time. Note that a little lesa than optimum reset time may cause cycling while even three to four times

Atter the controller is in operation, the black indicating pointer may nre be over the red setting pointer. since factory adjustment is based on pointers coinciding at mid -span output.

To manually reset the pointers, note position of black pointer then turn setting knob to move red pointer up to that position. Allow measurement to settle. Turn synchronization ..nut on the proportional feedback (Fig. 11) to bring black pointer into matching position. The pointers will only match for the load at which the adjustment was made. Where load is quite variable, synchronization is usually omitted.

optimum may make little differenee.

This is particularly true for

pi-messes with slow load changes.

After process has staloilited, the red and black pointer may mot he coincident. To synchronize, hold here huh of red pointer with 0.25" wrench and turn pointer. pushing it near its center to avoid bending it.

TUNING PROPORTIONAL + RATE CONTROLLER

DIFFERENTIAL GAP CONTROLLER Turn on air and drain dripwell through its drain valve. Adjust regulator to required supply pressure*. Set Asti pointer to center of desired differential gap. Turn hand adjustment to desired hand width on proportional dial. Note extreme high and low values which process reaches. Adjust hand to widen or narrow as necessary. Adjust red pointer up or down until differential gap is at desired level. Red pointer may be anywhere in the hand. To set pointer for top, bottom or center of hand (as desired) hold red pointer hub with 0.25' ignition wrench and turn printer, pushing it near its center to avoid bending it.

Set red pointer at desired operating point, proportional hand at 100% and the rate valve at 0 lime. Turn on air and drain dripwell through its drain valve Adjust regulator to required supply pressure.*

On a continuoue process reduce proportional band setting in law MCP, allowing sufficient time after each change lire the process to stabilize again. Continue to narrow the hand until the measurement is jittery or cycles a bit. Note the time in minutes for a complete cycle.

Now increase the rate time in steps. First the process should become

MULTI-MODE CONTROLLER

more stable and finally unstable again. Return to a value giving stability. In case of uncertainty try about 118 of the cycle time noted

The output of multi-mode controllers is the result of several actions acting simultaneously. Since at any moment the control effect' may he. additive or may be opposed, it may be difficult to analyze process changes. In difficult applications or in trouble it is helpful to record the measurement and the output pressure. When (wording instruments so: not available, the values of the controlled variable and

above.

If the rate time has to be kept close to fern, either the process does not need rate action or the process or control system is not in condition to tolerate rate action. Rate action controllers are sensitive to erratic measurement, vibration and all forms of process irregularities.

output pressure may be read periodically and plotted.

On a batch process make adjustments described above during the stable pan of the run. If necessary stars on manual control as described in section on MANUAL CONTROL.

When continued adjustment per these instructions fails to bring process into control it is hest to look for erratic behavior of the process,

6

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acting, set red pointer well below black pointer and desired value. If reverse acting set red pointer well above black pointer and desired value. This will cause controller to put out full output pressure.

Adjust diaphragm control valve opening by adjusting supply regulator.

When process is under control. note output pressure.

tithe provost; levels off too soon and approaches the set point in steps, the rate action is excessive. If there is an overshoot, more tate action is needed. The final setting should be a compromise between start-up and running performance.

TUNING PROPORTIONAL + RESET + RATE CONTROLLER

To switch to automatic Shut reset valve by turning reset knob counterclockwise to stop. Move red pointer back toward desired value until output pressure just drops. Restore supply pressure. To correct valve, adjust red pointer to be sure output pressure is brought to exact value noted during manual control.

With the rate valve fully open, proceed as described in TUNING PROPORTIONAL CONTROLLERS + RESET.

Tuning procedure for proportional + reset controllers may now be followed. If instrument is already tuned, reset votive may he set at

Now anon ease the rate time in steps watching the process become more

stable and finally unstable again. Return to a value giving stability.

In case of uncertainty, try about 1/8 of the cycle time noted above.

previously determined value,

FOR PROPORTIONAL + RATE CONTROLLERS

Repeat adjustment of proportional band, which now may permit a somewhat narrower setting, and then increase the rate time. Watch the proeess long enough to be sure the adjustments have sufficient

Follow same procedure as for proportional controllers except rate valve must be full open during all operations. When instrument is on automatic, process may be tuned per procedure for proportional + rate controllers. If already tuned rate valve may be set at previously

margin of safety for normal process upsets.

If the rate time as to he kept close to zero either the process does not need rate action or the process or control system is not in condition to tolerate rate action.

determined value.

FOR PROPORTIONAL + RESET + RATE CONTROLLERS

adjustments on continuous and batch processes see For rate TUNING PROPORTIONAL CONTROLLER + RATE.

To start up manually Open reset valve full by turning reset knob clockwise to stop, Open rate valve full, bu turning rate knob clockwise to stop. Note sontroller action (direct or reverse). If direct

After process has stabilized, the red and black pointer may not be coincident. To synchronize, hold hex huh of red pointer with 0.25'

acting. set red pointer well below bled, pointer and desired value. If reverse acting, set red pointer well above black pointer and desired

wrench and turn pointer, pushing it near its center to avoid bending it.

20 psi (140 kPa)

35 psi (240 Ott) 65 psi (450 kPa)

* 9 psi ( 60 kPa)

15 psi

kPa.) output

for 30 psi for 60 psi

(200 kPa) Output (400 kPa) output

1Or

for 18 psi (125 kPa) for 36 psi (250 lain) for

value. This will cause controller to put out full output pressure.

Adjust diaphragm control valve opening by adjusting supply regulator.

When process is under control, note output pressure.

To switch to automatic Shut reset valve by turning reset knob counterclockwise to stop. Move red pointer back toward desired value until output pressure just drops. Restore supply pressure. To core et valve, adjust red pointer to he sure output pressure is brought to execs value noted during manual control.

Tuning procedure for

3-15 psi (20-100 kPa) controllers 6-30 psi (40-200 kPa) controllers 12.60 psi (80-400 ,-Pa) controllers

proponional + reset + rate controllers may now he followed.

MANUAL CONTROL AND START UP

if

instrument is already tuned, reset and rate valves may be act to previously determined values.

Some processes must he brought up to control point manually as the first overshoot on start up may be well beyond permissible limits. In addition. manual operation of process provides a means of diagnosing difficulties in the process which might ordinarily he attributed to the controller.

TROUBLE SHOOTING PROCESS When it is indicated that the difficulties are in the process (hy manual control method or other diagnosis), a systematic check procedure is suggested. following is check list of some co ntrnon process dilli-

FOR PROPORTIONAL CONTROLLERS 're start up manually Note controller action (direct or reverse). If direct acting, set red pointer well below black pointer and desired value. If reverse acting, set red pointer well above black pointer and desired vslue. This will :ausc controller to put out full output pressure. adjust diaphragm corarot valve opening by adjusting supply

cultiea.

1.

In a pressure controlled process the pressure tap must be in a representative location and should not tend to become air bound or water logged as these actions will tend to give erratic and erroneous measurement which will in turn cause erratic control.

2.

In a temperature controlled process the bulb must be in a

regulator. When process is under control at desired value, note output pressure,

To switch to automatic Move red printer toward desired value until output pressure just drops. Restore supply pressure. To correct valve

representative location with good circulation assured. It should not be in such a place as to become air bound (liquid process) or flooded with condensate (vapor process). Surface of bulb should be kept elven. Foreign matter And deposits on the bulb slow response, resulting in sluggish control action and hunting.

adjust red pointer to he sure output pressure is brought to exact value noted during manual control.

FOR PROPORTIONAL + RESET CONTROLLERS 3.

To start up manually Open reset valve full, by turning reset knob

The control fluid should reach the control valve in sufficient quantity to maintain control.

clockwise to stop. Note controller action (direct or reverse). If direct

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Check leakage in the nozzle line connections at the nozzle and at the relay. If satisfactory, remove tlexible tubing from relay and close bole with finger. If premium increases the problem is in the nozzle assembly. Remove nozzle assembly. Clean or replace as necessary.

W pressure does not increase, the problem is in the relay. SE.E MAINTENANCE - RELAY.

The controlled medial should be free of debris which could foul the control valve.

4.

S.

Stearn traps must operate efficiently, not permitting back-up of ermilensate. If system is ...team fed and operating below 212 째F (incest the condensate system must be designed for vacuum service. Violent cycling will result when traps aro nut desigar-d for vacuum service.

IIIGH OUTPUT PROBLEMS Move flapper away from nozzle. if output decreases, check friction in shaft, linkage and overtrsvel spring. It' output does not decrease remove nozzles flexible tubing at relay. If output decreases, the problem is in the nozzles assembly. Remove norzle assembly and

If process has a heat exchanger, the heat exchange surface mug be adequate.

It must not become sir bound or flooded.

Foreign matter tending to accumulate should be cleaned

clean or replace as necessary. If output pressure does not decrease when the nozzle lino at the relay is open, the problem is in the relay.

periodically to prevent excessive transfer lag.

CONTROL VALVE 1.

2.

SEE MAINTENANCE - RELAY.

OUTPUT CYCLING PROBLEMS

Valve must be sized correctly, It should be large enough to maintain the process ti,r most load conditions. If it operates near the full open position continually, it is probably undersize and dues not have sufficient controllability. It a operates near the closed position, it is probably oversize.

This difficulty will manifest itself by the appearance of process cycling when there had been none before. Before proceeding with any other

checks, increase the proportional band setting to determine if this stabilizes the process.

It' it does, go through the TUNING PROCEDURE. If widening the hand dots not help, the teed hack

When large pressure fluatiations occur in control fluid, the valve should he of balamed construction or utilize a positionet, to prevent movement of the valve from this source.

3.

may he inoperative.

Set the pruportiunal baud at approximately 5"./.. [tepidly change set point around black pointer and observe output motion of the feedback

Erratic valve action can occur from sticking of the stern due to Proper matalial sele.tion will eliminate this problem. coor,),.iuil.

assembly. A clogged tube or broken feedback will show no output motion. See REPLACEMENT PARTS LIST.

INSTRUMENT

rate teerhiack assembly which produces no output motion may have a Clogged fate valve.

Due tc, multiplicity of symptoms and causes of trouble, a tabular arrangement for trouble shooting in the instrument will facilitate

To remove and clean the rata valve see

hfAINTENANCF..

checking.

A reset or reset + rate feedback assembly may have a leak in the reset

valve which would equalize the pressure between the reset chamber

LOW OUTPUT PROBLEMS

toutside capsule) and the inside of the capsule immobilizing the feedback. To remove and clean the reset valve see MAINTENANCE.

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TROUBLE SHOOTING TABLE TROUBLE

COMMON CAUSES PRESSURE MEASUREMENT

TEMPERATURE MEASUREMENT

No measurement, no movement of black pointer

Stop valve shut, connection clogged, element broken or overranged

Overranged element, leak in element

Reads High

Not adjusted for liquid head, element overranged

Overranged element

Reads Low

Air or vapor trapped in liquid leg, leak in connection line

Overranged mercury or liquid filled element, leak in element

Erratic

Linkage sticking, instrument vapor lock or liquid seal in connection

Linkage sticking

COMMON CAUSES

TROUBLE PROPORTIONAL CONTROL

No supply pressure Low supply pressure No output pressure or Low output pressure Output pressure remains high Process cycling

PROPORTIONAL + RESET CONTROL PROPORTIONAL + RESET + RATE CONTROL

Air supply valve shut, line frozen, regulator not set Regulator not set properly, filter clogged Low supply pressure, wrong red pointer setting, dirt in orifice, loose connection in nozzle line, flapper bent or not seating, relay diaphragm broken Wrong red pointer setting, nozzle clogged, orifice assembly loose, flapper jammed closing nozzle Proportional band too nar-

row, friction in valve or controller, valve oversize

Reset + rate valves closed or clogged; Proportional

Proportional band too nar-

band too narrow; Reset rate too fast, friction in valve or

rate valve closed or clogged,

controller, friction in reset unit gland, valve oversize; Rate time too low Process wanders

PROPORTIONAL + RATE CONTROL

Proportional band too wide, valve undersized

Proportional band too wide,

row; Rate time too low, friction in valve or controller, valve oversize

Proportional band too wide

reset rate too slow, valve undersized

Process approuches control in steps

Black pointer away from red pointer

Rate time too high

Normal offset due to load change; Not synchronized with synchronizing nut

Red pointer misadjusted

Rate time too high

Normal offset due to load change

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MAINTENANCES GENERAL Drain dripwell as required to prevent water filling dripwell and

To determine which scat requires attention, move control point to obtain full output. If leak is audible, exhaust port requires attention.

If there is no leak, move control point to obtain zero output. If relay leaks, inlet port requires attention. Thc inlet port can be serviced by removing the cap nut at back of instrument. Do not lose the small spring in the cap. Thc valve stem can be removed and cleaned in solvent. The inlet port can be cleaned with a cotton swab dipped in

entering instrument.

At regular inspection intervals: Push noz_zle orifice cleaner button in the side of the relay.

Verify process pointer calibration, as process conditions may

solvent. The exhaust port seat can be serviced by removing the sixmounting screws. Separating the diaphragm assembly from the relay

cause ovcrranging.

block may require some force, due to adhesion between the rubber and metal. (Do not damage the rubber diaphragm). Exhaust port can

Check connections inside and outside instrument and mounting bolts for tightness, especially under vibration conditions.

be cleaned with a cotton swab dipped in solvent.

RELAY (Fig. 12)

Push- Button Orifice

Remove from instrument disconnect supply and output piping.

Remove flexible tubing from nozzle connection and feedback con-

Remove from the relay block for cleaning using 0.50' open end wrench. Accumulations of grease, dirt, and oil may be removed by soaking in a suitable solvent. When reinstalling, tighten just enough to insure no leakage around metal seat at tip end.

nection (when relay has supply gauge option, remove flexible tubing from output gauge connection). Remove four mounting screws on back of case.

When the relay is assembled to the instrument, check by opening and closing the nozzle manually. Output should go to full supply value and to zero.

Servicing Should the exhaust or inlet port become fouled with dirt, there will be an audible leak during control.

METAL TO METAL SEAL TO NOZZLE CONNECTION

OUTPUT GAUGE

SUPPLY

TO NOZZLE

ORIFICE CLEANER BUTTON

INLET PORT

OUTPUT DIAPHRAGM

PUSH- BUTTON

ORIFICE

CAP NUT

EXHAUST PORT

VALVE STEM

MTG. SCREW (6)

BIAS SPRING

TO FEEDBACK

OUTPUT

NOZZLE DIAPHRAGM .e

TO REMOTE OUTPUT GAUGE (SUPPLY GAUGE OPTION)

Figure 12

PROPORTIONAL CONTROLLER 2.

To replace feedback unhook feedback link at proportional band dial. Remove feedback line from relay. Remove synchronizing nut.

Replace in reverse order. See ALIGNMENT for synchronizing nut

3.

adjustment.

5.

Alignment - with all components assembled and supply air on, pro-

6.

4.

(2% for 1-15% instrument) Move red pointer with setting knob until output is at mid-span Turn proportional hand to maximum setting. Output pressure should not change more than 10% of output span.

Adjust synchronizing nut to obtain mid-span output.

Repeat steps 1 thru 4 until output does not vary more than 10% of output span when the proportional hand changes.

If red pointer does not coincide with black pointer at mid-span

output, hold red pointer huh with 0.25' wrench and turn red pointer until it coincides. Caution: Apply torque near huh to

ceed as follows:

Set proportional hand at 10%

avoid bending pointer.

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VALVE SCREW (2)

FEEDBACK LINE (TO RELAY)

FILTER

BOTTOM

RESET VALVE

'''

-0- RING SPRING

LOCKING NUTS

VALVE PIN

MTG SCREW (2)

ADJUSTING LINK

Figure 13

Figure 14

PROPORTIONAL + RESET CONTROLLER

PROPORTIONAL + RATE CONTROLLER

(Fig. 14) To replace feedback

(Fig. 15)

unhook link at proportional hand dial.

Remove feedback line from relay. Remove two reset block mounting screws. Replace in reverse order. Sec ALIGNMENT for pointer

To replace same as Proportional + Reset Controller.

adjustment.

troller.

To replace Valve and Filter loosen two valve screws (5 turns without removing. Pull up and rotate clockwise until tabs on valve are clear of the screw heads. Remove and replace in the reverse order.

To clean valve and filter same as Proportional + Reset Controller.

-

same as Proportional + Reset Con-

To replace valve and filter

Alignment with all components assembled into instrument and supply air on, proceed as follows: -

To clean Valve and Filter remove valve pin by disengaging tension spring from slotted end of pin. Clean set and pin with suitable solvent. To remove filter, first removes bottom '0" ring. (Do not cut ring on tension spring). Remove filter and clean with solvent.

2.

Sct proportional band at 10%.

Open rate valve by turning fully clockwise to stop.

3.

Move red pointer with setting knob until output pressure is at

I.

mid-span.

Alignment with all components assembled and supply air on, proceed as follows:

4.

5.

I. 2.

3.

4

5.

6.

7.

8.

Set proportional hand at 10%.

Open reset valve by turning fully clockwise to stop.

Set red pointer for full output.

Reduce supply pressure until mid-span output is obtained.

Shut reset valve by turning full counterclockwise (reset chamber now has mid-span output pressure trapped inside and controller will act like a proportional controller).

Restore supply pressure to correct pressure.

Move red pointer with setting knob until output pressure is at mid-span.

Turn proportional hand to maximum stetting. Output pressure should not change more than 10% of output span.

9.

To obtain mid-span output pressure, loosen locking nuts and

10.

move adjusting link to the left or right. Tighten locking nuts.

Return band to 10%.

It.

Repeat steps 7 thru 10 until output does not vary more than

12.

6.

7.

8.

Turn proportional hand to maximum setting. Output pressure should not change more than 10% of output span.

To obtain mid-span output pressure, loosen locking nuts and move adjusting link to the left or right. Tighten locking nuts.

Return band to 10%.

Repeat steps 3 thou 6 until output does not vary more than 10% of output span when the proportional hand changes.

If red pointer does not coincide with black pointer at mid-span output, hold red pointer hub with 0.25" wrench and turn red pointer until it coincides (apply torque near huh to avoid bending pointer.)

MTG. SCREW (2) LOCKING NUTS

10% of output span when the proportional band changes.

If red pointer does not coincide with black pointer at mid-span output. hold red pointer hub with 0.25" wrench and turn red pointer until it coincided (apply torque near huh to avoid bending pointer.)

FEEDBACK LINE (TO RELAY)

ADJUSTING LINK

VALVE SCREW (2)

RATE VALVE

Figure 15

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PROPORTIONAL + RESET + RATE CONTROLLER (Fig. 16)

by aligning the red and black pointers with one another by using the set knob, loosening the two dial screws, and manipulating the elliptical center hole over the pointers.

To replace same as Proportional + Reset Controller.

Calibration of Element is Slade as Follows (Fig. 17):

To replace valve and filter - same as Proportional + Reset Controller.

1.

To clean valve and filter same as Proportional + Reset Controller.

2.

Alignment - with all components assembled into instrument and supply air on, proceed as follows: 3.

I. 2.

3.

4.

5

6.

7.

8.

9.

Set proportional band at 10%.

Open reset valve by turning fully clockwise to stop.

Open rate valve by turning fully clockwise to stop.

Set red pointer for full output.

Reduce supply pressure until mid-span output is obtained.

Shut reset valve by turning full counterclockwise (reset chamber now has mid-span output pressure trapped inside and controller will at like a proportional controller).

Restore supply pressure to correct pressure.

Move red pointer with setting knob until output pressure is at mid-span.

Turn proportional band to maximum setting. Output pressure should not change more than 10% of output span.

12.

To obtain mid-span output pressure, loosen locking nuts and move adjusting link to the left or right. Tighten locking nuts.

Return band to 10%.

Repeat steps 8 thru 11 until output does not vary more than

13.

10% of output wan when the proportional band changes.

If red pointer does not coincide with black pointer at mid-span

10.

II.

Select three pressures or temperatures at or near; the lower end, the center and the upper end of the dial range. For future reference, these will be known as values Po, Pc and Pu. Disconnect the control link (closest to chassis) at its upper end.

Spring the retainer clip open just enough to disengage the ball from bearing hole.

Apply Po (lower end of range) to the clement and note black pointer reading. If it does not read correctly, hold the hex hub

of the pointer with 0.2S" wrench and turn pointer to proper value.

CAU770N..

Apply. torque near center of pointer to avoid

bending it.

4.

Apply Pu (upper value of scale) to element. Note pointer reading. If pointer reads too high, dimension "C" must he increased. If the pointer reads too low, dimension "C" must be decreased. Remove dial and make adjustments as follows:

a.

To increase C: loosen lock screw 1/4 turn and turn range adjust hex forward. For each percent of error, hex should be turned about 1/4 turn.

Make proper adjustment. Tighten lock screw.

b.

To decrease C: loosen lock screw 1/4 turn and turn range adjust hex hack 1/4 turn for cach percent of error.

Tighten lock screw.

5.

output, hold red pointer hub with 0.25" wrench and turn red pointer until it coincides (apply torque near hub to avoid bending pointer).

Replace dial, and apply Po. Reset black pointer to proper reading, apply Pu and note reading. Make adjustments as described in 4 above. Continue adjusting and testing as per 4 and 5 until pointer reads correctly at Po and Pu.

MTG. SCREW (2)

RESET VALVE

LOCKING NUTS

INDICATOR CALIBRATION

FEEDBACK LINE (TO RELAY) ADJUSTING LINK

Figure 17 VALVE SCREW 14) 6.

RATE VALVE

Figure 16

MEASURING ELEMENT All bourdon tube, metal diaphragm and temperature measuring elements are interchangeable.

CALIBRATION AND TRACKING

With dial in place, apply Pc (at center or range) to the element.

If pointer reads low, link dimension L must be increased. If pointer reads high, L must he decreased. Remove dial and make adjustments as follows: a.

Loosen link screw and lengthen or shorten link as required. Note resulting black pointer movement. For each percent of error at Pc move black pointer about 90째.

Tighten link screws.

Now restore black pointer to approximately original b. position by loosening scale shape adjust screw 1/2 turn

and moving the segment.

INSTRUCTIONS FOR ALL ELEMENTS

7.

All measuring elements arc calibrated using the same adjustments on the indicating movement. To make these adjustments, the dial must he removed. The dial can be removed without removing the pointers,

8.

When pointer is back to

original position, lock scale shape screw.

Replace dial and apply Po to clement. Adjust black pointer to read correctly. Apply Pc and Pu. Note errors.

If error at Pu is twice error at Pc make only range adjustments (4 and 5). If not, make only scale shape adjustments (6 and 7)

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BOURDON PRESSURE ELEMENT (Fig. 19)

until the error at Pu is twice the error at Pc. Then make range adjustments per 4 and 5.

To remove remove two screws on back of case holding process connection block. Unhook long control link at its lower end. This is the back link, closest to the chassis. Remove shoulder screw to set point link. Remove three element mounting screws. The upper screw is

Tracking of red pointer to black is accomplished as follows (Fig. 18):

reached through the dial. Reassemble in reverse order.

1.

Reconnect control link to clement and turn on supply air.

To clean if pointer action is sticky, movement pivots and teeth are probably coated with gummy oil. This can be removed by soaking entire element in suitable solvent. Caution: Remove dial before immersing.

If instrument is a proportional only type set proportional band at 10% and proceed with steps 2-5.

If instrument is proportional + rate type, turn the rate valve on the feedback assembly to its fully open position (clockwise to the stop), act proportional band at 10% and proceed with steps 2-5.

If instrument is a proportional + reset type, trap mid-span output pressure in the reset chamber as described in TUNING PROPORTIONAL + RESET CONTROLLER. Set band at 10% and proceed with steps 2-5.

If instrument is proportional + reset + rate type, turn the rate valve on the feedback assembly to its fully open position (clockwise to stop). Trap mid-span output pressure in reset chamber

as

described

RESET CONTROLLER.

Figure 19

in TUNING PROPORTIONAL + Set band at 10% and proceed with

if movement is damaged (usually broken or twisted hairspring or worn teeth) it is necessary to disassemble element.

Remove dial by loosening two dial screws. Remove movement by unhooking measurement link and loosening two movement mounting screws. If movement can be repaired, do not loosen range adjustment To disassemble

steps 2 -5.

TRACKING ADJUSTMENT NNOI.

screws as indicator and tracking calibration will be retained thus requiring no calibration. Reassemble in reverse order.

r

To calibrate - use a test gauge of known accuracy to compare with black pointer readings. A dead weight tester is satisfactory if oil in element is not objectionable. See CALIBRATION AND TRACKING INSTRUCTIONS.

in TOLKONG T

IC/ANIPC

we rT

METAL DIAPHRAGM PRESSURE ELEMENT (Fig. 20)

Figure 18 2.

Set clement at Po. Move red pointer with knob to obtain midspan output. Slip red pointer on its huh so that it points to Po and is coincident with the black pointer.

3.

Set clement at Pc. Move red pointer with knob to obtain midspan output. Note whether red pointer is above or below black pointer. Repeat for Pu.

4.

To remove remove two screws on back of case holding process connection block. Unhook long control link from lower tab of bell crank.

Remove shoulder screw to set point link. Remove three element mounting screws. The upper screw is reached through the dial.

The diaphragm assembly may be removed by first disconnecting the diaphragm link and then loosening the locknut securing the threaded base to the mounting bracket. The replacement diaphragm assembly must be re-calibrated as described below. Reassemble in reverse

If red pointer reads below black pointer at Pc and Pu, dimension T must be decreased. If above, T must be increased.

Remove dial and make adjustments as follows:

order.

To Slut aid disamemble same as for Bourdon element. a.

To decrease T (red pointer reads below black):

loosen

LOCANUT

OANNAGN ASSY

lock screw on the upper segment 1/4 turn and turn tracking adjust hex backward 1/4 turn per percent of

ANGLE

tracking error st

DI I. 1. CRAIN%

mall CRANK ANC,. II SCAM sit AIWA. MINT LINK

b.

To increase T (red pointer reads above black): loosen lock screw 1/4 turn and turn tracking adjust hex forward 1/4 turn per percent of tracking error at Pu.

I NOICT IN() MO VI MINT

DI

LINK T A ACII.040

DIAL

ADJUST Sc WEN

5.

RID Oitert

Replace dial. Set element at Po and repeat 2, 3 and 4 until red

MANGE ADJUST

S CAM

SLACK POINTS A

pointer coincides with black at mid-span output for all values of

II

measured variable.

T POINT LINK

NT MTO

SCRS* 13/ INDICATING ASSY. DIAL SCIMLIN 131

ONTAOL LINE SHOULOS PI SCA IN

12

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screw. Connect diaphragm link to bell crank in the hole which causes about 4 or 5 segment teeth to be engaged on pinion at Po. Remainder of calibration adjustment is as described in the CALIBRATION AND TRACKING INSTRUCTIONS.

To calibrate - use a test gauge or column of known accuracy to compare with black pointer readings. Calibration is heat performed in the east. Leave control link (the long link closest to the chassis) disconnected at bell crank. Connect measurement link to bell crank.

Loosen bell crank angle screw end adjust angle to 80째. Lock with SLACK DIAPHRAGM

OVERPRESSURE STOP SCREW

RANGE,SPRING

BELL CRANK

BELL CRANK

01.,,e ue Ai ... ...r

DIAL.

.

-

.0, 0..-',

lik -

-4'.

irs

1.

a

BELL CRANK ANGLE DIAPHRAGM LINK AS Y.

RED POINTE

SSAS SPRING

TRACKING ADJ. BLACK POINTER

SET POINT LINK

ELEMENT MTG. SCREW (3)

DIAL SCREW (2

CONTROL LINK SHOULDER SCREW

Figure 21

SLACK DIAPHRAGM ACTUATED PRESSURE ELEKENT (Fig. 21)

b pressure stop:

To remove indicasisin assembly - unhook diaphragm link at bell

1.

Loosen H. P. step at least 3 turns.

crank. Unhook control link at its lower end. Remove shoulder screw LO set point link. Remove three element mounting screws. The upper screw is reached through the dial.

2.

Pressure and compound ranges apply full scale pressure to H.

P. side.

Vacuum ranges - apply lion scale vacuum to L. P. side.

Adjust H.P. stop clockwise until column meniscus is disturbed, then hack off 1/2 turn.

To remove diaphragm housing assembly - unhook diaphragm link at hell crank. Remove three screws securing diaphragm housing to columns and bracket on back of case. Reassemble in reverse order.

Tu adjust low pressure stop:

To adjust (overpressure stop - (before re-assembly to instrument) turn overpressun: stop screw counterclockwise, at least three turns. apply full scale pressure and turn stop screw clockwise until water column meniscus is disturbed. Back off 1/2 turn.

1.

2.

3.

To dean indicating assembly - same as Bourdon element.

To calibrate - use a manometer or inclined manometer of known

Loosen L. P. stop at least 3 turns.

Pressure ranges - apply min. pressure to H.P. side.

Compound ranges - apply till scale vacuum to H.P side.

Vacuum ranges apply min. vacuum to L.P. side.

Adjust L.P. stock clockwise until column meniscus is disturbed, then back off I/2 turn.

To calibrate - same as for slack diaphragm pressure element except as

accuracy to compare with black pointer readings. Element must be assembled in case, Disconnect control link (short link closest to the chassis) from the tab on the indicating movement. Set hell crank angle to 90째. Adjust diaphragm link to engage 4 or S segment teeth on pinion at Po by unhooking it st bell crank and turning it clockwise to shorten, counterclockwise to lengthen. Proceed with calibration lb described under CALIBRATING AND TRACKING INSTRUCTIONS, except for the scale shapes adjustment. If Pc as too high or low (item 6 under CALIBRATION OF ELEMENT), adjust hell crank angle and make appropriate diaphragm link adjustment to engage 4 or 5 teeth at PO.

follows:

Pressure and compound ranges - apply Po, Pc. and Pu to H.P. side with L.P. side open,

Vacuum Range, - apply Po, Pc, and Pu to L.P. side with H.P. side open.

GASKET

L. P, hIOUSING P. SIDE

H. P. STOP

r

BELL

R ANGE SPRING

CRANK ...... .:4.

H. P.

HOUSING

SLACK DIAPHRAGM ACTUATED DIFFERENTIAL PRESSURE, VACUUM ELEMENT, COMPOUND ELEMENT (Fig. 22)

..

BELL CRANK ANGLE

...

.. ..

i. ....4.

4...

I.; ,..-ri

0-.

.... --,,,* .,.,

reek-4

.1'.

STOP SCREW

P. SIDE

Tu replace indicating assembly - same as Stack Diaphragm Pressure DIAPHRAGM LINK

Element.

ASSY.

. P STOP

Figure 22

Tu clean indicating ssesubly - same as Boonton Element.

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HIGH STATIC PRESSURE ACTUATED DIFFERENTIAL PRESSURE ELEMENT (Fig. 23)

To clam Indicating Assembly - same as bourdon element.

To calibrate - disconnect control link from the tab on the indic movement. Move high and low stops to the edge of the slot in chas-

To remove Indicating Amenably - remove (2) length adjust screws on

the measurement link and unhook control link at its lower end Remove shoulder screw to setpoint link. Remove (3) element mounting screws. The upper screw is reached through the dial.

sis. Loosen (2) length adjust screws on the measurement link assembly. Adjust stop arm an that it is in the center of the slot in

chassis and tighten using the shaft chimp and the hearing of the 13/P element. Adjust take olT arm to 0.81" (21 mm) front chassis. Apply Po and adjust length of measurement link to engage 4 or 5 segment teeth on pinion. Adjust low stop to clear stop arm by 0.01" (0.25mml. Apply Pu and adjust high stop to clear stop arm by 0.01' (0.25mm). Apply 2 x Pu to L.P. side then to H.P. side to determine if slop arm and slope are secured. If nut readjust stop arm clearance.

Proceed with calibration as described under CALIBRATION AND TRACKING instructions.

Reassemble in reverse order.

To remove Differential Pressure Element - remove (2) length adjust screws on the measurement link. Loosen stop arm with 0.25' hex wrench and remove shaft clamp.

For Menton 1020 and Barton 224 DIP elemenLs - remove chassis as instructed under MAINTENANCE - CHASSIS and remove (4) D/P element mounting mews.

Apply Po, Pe and Pu to DIP elements as follows: For pressure and compound ranges - H.P side with L.P. side vented. For vacuum ranges - L.P. side with HP side vented.

lor Meriam 1080 and Radon 199 - remove (4) DIP element mounting screws from rear of case. Reassemble in reverse order.

DIFFERENTIAL PRESSURE ELEMENT

SHAFT C AMP

4

CASE.

LOW STOP

CHASSIS STOP ARM

TAKE-OFF ARM

HIGH STOP

HOULDER SCREW

tt4GTH ADJUST SCREWS

MIN. CLEARANCE

DiCA I 'NO MOVEMENT

DIAL

CHASSIS

MEASUREMENT LINK RED POINTER

TRACKING ADJUST SCREW

BLACK POINTER RANGE ADJUST SCREW

T POINT LINK CONTROL LINK

ELEMENT MTG. SCREW 131

SHOULDER SCREW

DIAL SCREW 2)

Figure 23

MERCURY ACTUATED TEMPERATURE ELEMENT (Fig. 24)

To dean - sane: as Bourdon element.

To disassemble same as Bourdon element.

To remove - disconnect bulb from process. Remove split nut if any.

Remove two screws on back of case holding case connection.

Unhook control link at lower end. This is the long link closest to chassis. Remove shoulder screw to loosen set point link. Remove three element mounting screws. The upper screw is reached through the dial. String capillary and bulb through case opening. Reassemble

To calibrate set up three baths with temperatures near both ends of range. and near center. Use test thermometers of known accuracy.

Perform calibration with element in case. Leese control link (lung link closest to chassis) unhooked at output crank. Immerse bulb in low temperature bath. Stir well. Slip black pointer on its hub so that

in reverse order.

NOW Performed bulbs cannot be removed from case as bulb is too

it indicates bath temperature.

Continue ad described CALIBRATION AND TRACKING INSTRUCTIONS.

in

large to pass through case hole.

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CASE CONNECTION

U DON

GAS ACTUATED TEMPERATURE ELEMENT (Fig. 26)

EASUREMENT LINK POINTER HUB

To replace - same as mercury aemated element except diskonneu control link frnm control unit rocker arm. This is the short link closest to chassis.

CATtNG OVEMENT

DIAL

To clean - same as Bourdon clement.

TRACKING ADJUST SCREW

Tu dismasemble same as Bourdon element. measurement link is engaged in Bourdon tip.

RED POINTE

GE ADJUST

BLACK POINTER

To calibrate - same as mercury. To adjust segment Dor full engage ment of pinion over entire range. loosen lock screw on measurement link and lengthen or shorten link as necessary. Be sure to use hole in Bourdon tip in which link was originally found.

CONTROL LINK ET POINT LINK

ELEMENT MTG. SCREW (3)

Note in which hole

SCREW

DIAL SCREW 12)

SHOULDER SCREW

Figure 24 HOUROON

ORGANIC LIQUID ACTUATED TEMPERATURE ELEMENT

INGICAPING MOVEMENT

To remove - same as mercury iNtuat-id element, except disconnect 'control link from corurol unit rocker atm. This is short link closest to chassis.

OUROON TIP

MEASUREMENT

To clean - same as Bourdon clement.

LINK

To disassemble same as Bowdon element. Note that the right hand Bourdon on two spring fully compensated elements) is free pivoted.

This spring also has a coil of fine capillary wound around it to permit free swinging of Bourdo.n assembly.

CONTROL LINK

Examine the capillary to be sure element sswings freely without

Figure 26

binding.

CHASSIS (Fig. 27) To calibrate - single spring (case compensated) elements may be calibrated name as incrony elements, Control link is di,connected at control unit rocker arm and segment position is adjusted by loosening hex ScAlknut at center of spring assembly and turning entire Bourdon assembly.

To remove Chasai,

For twi, spring elements (fully compensated Fig. 25), adjustment of segment is made by loosening twit crank clamp screws so that crank

To clean Flapper - air from weak will deposit $ gummy residue on the flapper after extended service. This may he removed with a dry

may he turned.

cloth or a cotton awes 'soaked in so CHASSiS MTG.

remove element from chassis per instructions under MEASURING ELEMENT. Remove nozzle line and feedback line from relay. Remove three chassis mounting screws. Replace in reverse order.

CAUTION: Note crank length before loosening as changing length

SCREW (31

will upset fact.uy calibrated compensation adjustment.

CRANK CLAMP

CRANK

SCREW

BOURDON

NOZZLE Llt4

LAPPER

SET POINT

CONTROL UNIT

K NOB

0..OPOciriONAL.

PROPORTIONAL BAND OPAL

r 0BACK ASSY,

S v NCH Rood I Zi NO

FEEDa ACK

NUT

LINE\ CONTROL

LINK

Figure 25

SPRING

BAND

BAND INDICATOR uSTMENT

째SACK LINK

Figure 27

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TILE DOOR OUT /UT PILTOPI riTTIIse

keyvABLY

The door assembly may be removed by depressing upper hinge pin with a drill through hole in dust ledge. When pin is free of fink, door may be manipulated to withdraw the lower pin from the lower ledge hole. Pins are trapped and cannot be lost. To replace, insert lower

pin in hole first, depress upper pin and slip under upper ledge.

Manipulate door until upper pin jumps into upper hole.

CAP 5C1IEPV

GASKET

FILTER FITTINGS (Figs. 28, 29)

Figure 28

GILTEPI ELEMENT GASKET

A gradual drop in supply pressure is usually caused by filters being

gradually closed up with oil and dirt.

This will cause slower

response which may emir.: process cycling. Therefore it is well to periodically clean the filters.

The filter element in the supply filter assembly can be cleaned without

rh.;ea

PIT

asaelaoLY

disconnecting the piping by removing the cap screw. Remove filter

t.tio

Figure 29

element and clean with solvent. Reassemble in reverse order.

SPECIAL CONTROLLERS RECULATOF

.

.

.

1M=

is1 _1 a.

.0

gr.

1. .0

st

IMO

TPANSFER SWITCH IAN UAL

41.

CrR'S'14IC

PFR

Figure 30 TRANSFER 'DM IL

TWO POSITION BYPASS CONTROLLER

SWITCH

DIFFERENTIAL PRESSURE 1

GENERAL

INDICATOR BELLOWS

Thu Iwo position bypass allows the process to he controlled auto-

INDICATOR LINE \

matically or manually with provision for bumpiest. transfer.

INDICATOR

PRINCIPLE OF OPERATION (Pigs. 30, 311

Figure 31 A three-way valve in the nozzle line between the restrictor and the relay noz'Je diaphragm permits operation of controller output either automatically (nozzle-flapper system) or manually by using a pressure regulator mounted on top of the rainy.

OPERATING PROCEDURE Manual to Automatic - assumes the transfer switch is in the "MAN" position and the prov,ess is stable and being controlled manually by the regulator on top of the relay.

Bumph:se Irsitsfer is II% abated by a differential pressure indicator which responds to very low pressure diffeteraials. This makes it pus. ale to closely math regulator preasurt Pr to nozzle pressure Pti.

1.

With this system, manual control is accomplished through the controller's output air delivery system. Ail delivery and contiol response

2.

Adjust set point knob until the end of the DUD:le:Mil Pressure indicator bellows is aligned with indicator line. This matches the nozzle back pressure Pn to the regulator piessure Pr. Flip the transfer switch toggles to the "AUTO" position and the

controller assume control of the process. Turn regulator knoll cotnuerclockwise to stop, tto shut off regulator output).

are identical for automatic and manual conditions.

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Automatic to Manual - assume process is stable and being controlled by the controller.

1,

instructions call for moving the red pointer with knob the red pointer should be moved by applying remote set pressure.

Adjust the regulator knob until the end of the Differential Pres-

To mum Bourdon element - remove link screw on the control

sure indicator bellows is aligned with indictor line.

movement and proceed as per MAINTENANCE - W)URDON

The

PRESSURE ELEMENT. Re-assentbly in reverse order.

regulator pressure Pr is then the MOW as male hack presaun: Pn.

2.

Measuring &lintel calibration and tracking can be adjusted per

Flip the hansfer switch toggle to the "MAN' position The process is now being controlled manually. Output can be loco:axed by turning the regulator adjust knob clock-wise nr

MAINTENANCE - CALIBRATION AND TRACKING instructions (Fig 17).

decreased by turning eounterclockw.u.e.

Calibration of set signal pressure to output pressure (Fig. 32)

REMOTE SET CONTROLLER

(Disregard red pointer location)

GENERAL

Set proportional band at 10%, open rate valve fully and close reset valve with raid-span output coked in reset chamber (if

The remote set controller is a modified instillment permitting the set point to be remotely adjusted by means of a 3 to 15 psi (.20-100 KP)

applicable).

pressure ..ignal instead of the set point knob.

2.

Apply Po to process and 3 PS1420 KR) to set point diaphragm.

INSTALLATION

3.

Output pressure should read midspan. If not, loosen line adjust lock screw and adjust zero adjustment. Tighten lock

Setting pressure connection is 1/4 NPT.

screw.

PRINCIPLE OF OPERATION (Fig. 32)

Apply Pu to process and 15 PSI 1100 KP) to

set

point

diaphragm.

In the remote set controller, the entire control movement is pivoted around AA and is driven by set point diaphragm.

5.

Output pressure should read mid-span. If pressure reads high, move set point range adjustment to the len. If pressure reads low, move set point range adjustment to the right.

If nozzle reversal is necessary, do not hear too heavily on nozzle Bellew as this may damage pivot'. AA. Be sure flexible nozzle lino is

f.

Repeat atop 2 and readjust zero if necessary,

not fouling any part of :controller.

7.

Apply Pc to process and 9 PSI ((10 Kit to set point diaphragm.

TUNING ADJUSTMENTS (Fig. 32)

)1.

Output pressure should read mid-span. If pressure reads high,

SELECTION OF CONTROL

loosen bell creak screw and move to left.

Set point limit stops may be set as follows: Increase set signal pres-

II low, move to

right. Bring output pressure vs cud -span by adjusting act point link.

sure to 16 PSI (110 KP) and adjust maximum stop until red pointer starts to move. Decrease set signal pressure to 2 PSI (14 KP) and adjust minimum stop until red pointer starts to move.

9.

MAINTENANCE (Fig. 32)

Alignment of Red Pointer to Black Pointer - an be adjusted per

Repeat steps 2 and 4 and readjust Auto and span if necessary.

MAINTENANCE - TRACKING OF RED POINTER TO BLACK Alignment - can he adjusted per MAINTENANCE - ALIGNMENT

inmmetiona (Fig. 18). When instru.tions call for moving red pointer with knob, the red pointer should be moved by applying remote set

for the type of control actiun used (Prop., Prop. + Reset, etc.) When

pmssure.

0

SE? PRESSvRE

CONNECTION 'LOCl/

NOZZLE

CONTROL LINK

NOM E SCREW

0

POIIT RAN ,;F ''...."...........'' SET ADJuf.Ther-N f .R.UF ELL)JUST LOCK SC4f-A0

MINIMUM

CI. ANN ANOL.

7s,

,.o. .1

JUSTILIE.1T

`1.* MtiV EMt: VT IVOT

IE AG; .ISTNAt NT

ta goo -.

It

hins'IMLNt 5C AOINI STD.'

.

41.

Mo.

NT OIARHMAGIN

NT LNK

iCNT

SCREW

CV.* T ROL MO.'! vs

: APP

Figure 32

17

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RELAY

TRANSMITTING ELEMENT

REMOTE CLEANABLE RESTRICTOR

SLACK DIAPHRAGM B BELLOWS ASSY

BIAS SPRING STOP

40--

BIAS ADJ SCREW

OUTPUT

BIAS LOCKNUT PNEUMATIC ASSY CLEANABLE RESTRIC TOR

L P HOUSING

H P HOUSING

FIXED RESTRICTION RECEIVING ELEMENT

SUPPLY AUXILIARY SUPPLY

Figure 33

FORCE BALANCE SLACK DIAPHRAGM CONTROLLER

TROUBLE SHOOTING

GENERAL Insufficient movement of black pointer may be due to:

This controller is used for process inputs of 2" H20 (0.5 KPa) or less.

It uses a slack diaphragm transmitting clemcnt which is mounted on the back of the controller case. This transmitting clement converts the process input to a 3 to 15 psi (20 to 100 KPa) (approximately) signal.

This signal is fed to a metal diaphragm receiving clement which operates the controller.

1.

2.

3.

Dirty pneumatic assembly Ball not seated in valve of pneumatic assembly.

Leak in tubing connection at pneumatic assembly, remote cleanable restriction or receiving element.

MAINTENANCE (Fig. 33)

INSTALLATION vented, the installation must be in an area free of drafts or breezes

Calibrating Transmitting Element for pressure and compound ranges - apply Po, Pc, and Pu to H.P. side with L.P. side open. For vacuum ranges - apply Po, Pc, and Pu to L.P. side with H.P. side

from fans which will cause errors in measurement.

open.

Install on a vertical, vibration free surface. If one side of the sensor is

Supply regulator should have high flow capacity and provide good

I.

regulation to prevent interaction between control air and measurement.

The filters in the H.P. and L.P. connections arcs used to prevent

2.

oscillation of the sensor diaphragm.

4.

PUTTING INTO OPERATION 5.

For zero based ranges set red pointer at zero. With H.P. and L.P. sides of transmitting element vented, the black pointer should be at 0 +/- 1%. To adjust, loosen the bias locknut and adjust bias adjust screw. Tighten bias locknut.

For center zero ranges - set red pointer at mid-scale. With H.P. and L.P. sides of transmitting clement vented, the black pointer should be at mid-scale within +/- 1%. To adjust, loosen bias locknut and adjust bias adjust screw. Tighten bias locknut.

Disconnect tubing from receiving clement and connect to a 0 to 15 psi test gauge.

Apply Po. Loosen bias locknut and adjust bias to obtain 3 +10.25 psi (20 +/- 1,7 kPa) output, and lock bias locknut.

Apply Pu. Output should increase to 14 + /- 2 psi (96 +/- 14 kPa).

If output is unstable or less than 12 psi (83 kPa) remove pneumatic assembly and clean with solvent. Reseal ball in the valve by rubbing on a clean paper like a ball point pen. Loosen bias locknut and back off bias adjust approximately 4 turns.

Advance pneumatic assembly into cell to obtain approximately 0.3 psi (2 kPa) output with Po applied. Apply RTV sealant to lock pneumatic assembly and repeat steps 2 through 4.

Calibrating Receiver Element the transmitter and receiver can he calibrated as a single clement by applying process pressure to the transmitter and calibrating the mechanical output of the receiver as TRACKING described in the CALIBRATION AND INSTRUCTIONS. All adjustments are to be made on the receiver element. Do not readjust transmitting clement at this time.

When the bias locknut is loose, apply a minimum amount of force to the bias adjust screw to CAUTION..

avoid breaking the seal between the bellows end cap and the H. P. housing.

18

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REPLACEMENT PARTS LIST

When ordering replacement parts, always specify series, type and serial number

19

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BOURDON TUBE PRESSURE ELEMENT Pre-calibrated assembly includes the parts listed below. TO ORDER: Specify material, range and dial (specify if controller includes remote set).

RECOMMENDED SPARE PARTS

ITEM

STOCK No.

DESCRIPTION

1

See table

Bourdon element

2

Specify Range

3

483012

Control Set Pointer

4

483015

Indicating Pointer

5

483016 483017

Indicating Movement Indicating Movement

6

483018

Link Assy.

7

483019 483020

Control Link Control Link - remote Set

8

483021

Dial Screw 2-56 x .13 (2 required)

9

483022

Mounting Screw 8-32 x .63

10

483023

Mounting Screw 8-32 x .38 (2 required)

11

483024

Conn. Mtg. Screw 8-32 x .38 (2 required)

Dial

Remote Set

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STANDARD ELEMENTS w/MOVEMENT RANGE

MATERIAL PSI

316

STAINLESS

STEEL

PASCAL

0/13 to 0/17

0/90 to 0/110 kPa

0/25 to 0/35

0/170 to 0/240 kPa

0/40 to 0/50

0/260 to 0/340 kPa

0/50 to 0/70

0/340 to 0/480 kPa

0/85 to 0/110

0/580 to 0/800 kPa

0/130 to 0/150

0/860 to 0/1000 kPa

0/150 to 0/180

0/1000 to 0/1200 kPa

0/190 to 0/230

0/1300 to 0/1600 kPa

0/250 to 0/350

0/1700 to 0/2400 kPa

0/350 to 0/450

0/2400 to 0/3100 kPa

0/450 to 0/550

0/3100 to 3800 kPa

0/550 to 0/700

0/3800 to 0/4800 kPa

0/700 to 0/900

0/4800 to 0/6200 kPa

MOO to 0/1200

0/6200 to 0/8000 kPa

0/1300 to 0/1700

0/9 to 0/11 mPa

0/1700 to 0/2300

0/12 to 0/16 mPa

0/2500 to 0/3500

0/17 to 0/24 mPa

0/4200 to 0/5000

0/29 to 0/34 mPa

BOURDON ELEMENT

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DIAPHRAGM ACTUATED ELEMENTS Pre-calibrated assembly includes the parts listed below. TO ORDER: Specify material, range, dial, link assy. (from table) and whether diaphragm is used for pressure or vacuum (specify if controller includes remote set). Assembly can be interchangeable with bourdon type.

.

.

RECOMMENDED SPARE PARTS

ITEM 1

STOCK No. See Table

2

Specify Range

DESCRIPTION Diaphragm element Dial

3

483012

Control set Pointer

4

483015

Indicating Pointer

5

4830th

Indicating Movement

483017

Indicating Movement Remote Set

6

483025 483026

Link Assy. (Pressure) Link Assy. (Vacuum)

7

483027 483028 483020

Control Link (Pressure) Control Link (Vacuum) Control Link - Remote Set

8

See Table

Link Assembly

9

483021

Dial Screw 2-56 x .13 (2 required)

10

483022

Mounting Screw 8-32 x .63

11

483023

Mounting Screw 8-32 x .38 (2 required)

12

483024

Conn Mtg. Screw 8-32 x .38 (2 required)

13

483031

Locknut

14

483032

Stop (Optional)

15

483033

Screw 12-24 x .25 (optional)

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STANDARD ELEMENTS

RANGE

MATERIAL H2O or PSI

DIAPHRAGM ELEMENT

PASCAL

PRESSURE LINK ASSY.

VACUUM LINK ASSY

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MERCURY ACTUATED THERMAL ELEMENTS This element includes bulb, line, connection block, spiral bourdon, compensator crank, movement and link, cast mounting bracket, and dial and pointers. Pre-calibrated for indication and pointer tracking. Interchangeable with Bourdon type.

ORGANIC LIQUID ACTUATED THERMAL ELEMENTS This element includes bulb, line, connection block, helical bourdons, movement and link, cast mounting bracket, and dial and pointers. Pre-calibrated for indication and pointer tracking. Interchangeable with Bourdon type.

FULLY COMPENSATED

UNCOMPENSATED

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GAS ACTUATED THERMAL ELEMENTS This element includes bulb, line, connection block, bourdon and bracket assembly, movement and link, and dial and pointers. Pre-calibrated for indication and pointer tracking. Interchangeable with Bourdon type.

,,,..,:-., -, ...n.,-

-',.:::M.'*;Z:Aipi,,

RECOMMENDED SPARE PA. ITENI

STOCK No.

1

(specify Range)

2

483012

Control Set Pointer

3

483015

Indicating Pointer

4

483016 483017 483017

Indicating Movement (Mercury) Indicating Movement (Organic & Gas) Indicating Movement - Remote Set (Mercury)

5

483034

Compensator Output Crank

6

483035 483036 483037 483038

Link (Mercury) Link (Organic) Link (Gas) Link, suppressed range (Mercury & Gas)

7

483039 483029 483029

Control Link (Mercury) Control Link (Organic & Gas) Control Link - Remote Set (Mercury)

DESCRIPTION Dial

8

483021

Dial Screws 2-56 x .13 (2 required)

9

483022

Mounting Screw 8-32 x .63

10

483023

Mounting Screw 8-32 x .38 (2 required)

11

483040

Mov't. screw 6-32 x .25 (2 required)

12

483024

Conn. Mtg. screw 8-32 x .38 (2 required)

13

483041

Hex Nut #6

14

483042

Link (Organic, Comp)

25

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STANDARD TEMPERATURE RANGES RANGE

-40/120 0/100 0/150 0/200 0/300 0/600 0/800 0/1000 30/150 30/240 50/400 200/600 400/1000

TYPE OF ELEMENT ACTUATION MERCURY

ORG. LIQ.

X

X

X X

X X X X

-40/50 -20/40 -20/65 -20/90 -20/150 -20/315 -20/425 -20/540 0/65 0/115 10/204 93/316 200/530

X X

GAS

X X

X X

X

X

X X

X

X

X

X X

X

X X

X X

X

When ordering: Specify Range, Line Length and Armor, extension Length, Bulb Style and Pipe Size of connection. (Specify if Controller includes Remote Set and if Organic Liquid Element is Fully Compensated.)

Extension dia. (standard .188 dia. and .250 dia. type 316L Stainless Steel) C - External thd.

J - Extension length (standard 12" type 316L Stainless Steel) Other lengths available B

T Lagging extension U - Insertion length X - Bulb length Y - Bulb diameter Straight thread size (5/8-18 and 7/8-18)

TEMPERATURE BULBS, UNIONS AND WELLS P1 PLAIN

L . J

UNION HUBS

P6 PERFORMED

-

12S

x

-.......

1

1

FP)

11

For Mercury Class VA, VB only

P2 PLAIN WITH EXTENSION

-

c

P7 AVERAGING

T

-...1

B

t

-0

Y 1

L....-

B

X

-6-

1

PROTECTING WELLS

i

J

APP gt

P4 ADJUSTABLE UNION SEAT II

c

Y

- .375 Type 316L St.Stl. (optional) .

1111117',,,,,,

i

u

z

,

-z

c

L....--

x ---- i

-

,..

For use with Well "X" + "J" must

Gas actuated Y - .375 St. Stl. Mercury actuated V . .075,.080,or.(160 St. StI.

exceed "U" + "T" by at least 2 inches

A

[

-

u

I

-.100.-.-

T -----J

26

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SLACK DIAPHRAGM ACTUATED PRESSURE ELEMENTS This element includes diaphragm housing assembly, mounting posts, indicating movement, links, cast mounting bracket, dial and pointers. It is not Pre-calibrated when purchased as replacement, and is not interchangeable with other element types.

RECOMMENDED SPARE PARTS

ITEM

STOCK No.

DESCRIPTION Range

1

Housing Assembly (Pressure) 483043 483044 483045 483046 483047 483048

In. of H2O 0/2.5 to 0/4.4 0/45 to 0/8.4 08.5 to 0/14.5 0/14.6 to 0(24.9 0/25 to 0/43.9 0/45 to 0/80

483049 483050 483051 483052 483053 483054 483055 483056

1-0-1 to 1.5-0-1.5 0/15 to 0/2.4 0/2.5 to 0/4.4 0/4.5 to 0/8.4 0/8.5 to 0/14.5 0/14.6 to 0/24.9 0/25 to 0/43.9 0/44/ to 0/8

Pascal

0/.6 to 0/1 kPa 0/1 to 0/2 kPa 0/2 to 0/3.6 kPa 0/3.6 to 0/6 kPa 0/6 to 0/11 kPa 0/11 to 0/20 kPa

Housing Assembly (Diff. Pressure)

.25/0/.25 to .4/0/.4 kPa 0/.4 to 0/.6 kPa 0/.6 to 0/1 kPa 0/1 to 0/2 kPa 0/2 to 0/3,6 kPa 0/3,6 to 0/6 kPa 0/6 to 0/11 kPa 0/11 to 0/20 kPa

Dial

2

Specify Range

3

483012

Control Set Pointer

4

483015

Indicating Pointer

5

483017

Indicating Mov't.

6

483057

Diaphragm Link

7

483058

Link Assembly.

8

483029

9

483021

Control Link Dial Screw 2-56 x .13 (2 required)

10

483022

Mounting Screw 8-32 x .63

11

483023

Mounting Screw 8-32 x .38 (2 required)

12

483059

Post Mtg. Screw #8 Type F Self-Thd. (3 req.)

27

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DIFFERENTIAL PRESSURE ELEMENTS

FOR REPLACEMENT DIFFERENTIAL PRESSURE ELEMENTS SPECIFY: Type, Range, Housing Material. Bellows Material and Static Process Pressure.

MOUNTING SCREWS FOR DIP (Not shown) Barton 199 and Meriam 1080: 1/4 - 20 x .50 (4 required), 483060 Barton 224: #10-32 x .50 (4 required), 483061 Meriam 1020: #10-32 x .50 (2 required), 483062; #10-32 x .50 (2 required),

RECOMMENDED SPARE PARTS ITEM

STOCK No.

DESCRIPTION Dial

I

Specify Range

2

483012

Control Set point

3

483015

Indicating Pointer

4

483017

Indicating Movement

5

483063

Link Assembly.

6

483029

Control Link

7

483064

Stop Arm

8

483021

Dial Screw 2-56 x .13 (2 required)

9

483022

Mtg. Screw 8-32 x .63

10

483023

Mtg. Screw 8-32 x .38 (2 required)

11

483065

Stop Screw 8-32 x .28 (2 required)

12

483066

Arm Screw 4-40 x .13 (2 required)

13

483067

Shoulder Screw

14

483068

Washer

15

483069

Link Adj. Nut

16

483070

Washer

28

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FORCE BALANCE SLACK DIAPHRAGM D/P ELEMENT This element includes transmitting element Assembly, diaphragm capsule Assembly, restrictor housing Assembly, indicating movement, tubing, links, cast mounting bracket, mounting post, dial and pointers. It is not Pre-calibrated when purchased as replacement and is not interchangeable with other element types.

RESTRICTOR HOUSING ASSY. IC 170062

TO KLAN

-so 4111

TO DIAPHRAGM

TO TRANSMITTING

CAPSULE

ELEMENT

RECOMMENDED SPARE PARTS ITEM

STOCK No.

DESCRIPTION Transmitting Element Range

1

483072 483073 483074 483075 483076

2

483077

3

4

(Specify Range) 483012

5

483015

6

483016

7

483078

8

483025

9

15

483027 483079 483080 483081 483021 483022 483023

16

483031

17

483082

18

483083

19

483084

10 11

12 13

14

In. of H2O 0/2 1-0-1

0/1

0.5-0-0.5 0/0.5

Pascal 0/500 250-0-250 0/250 125-0-125 0/125

Diaphragm Capsule Dial

Control Set Pointer Indicating Pointer Indicating Movement Link, Diaphragm Link Movement Control Link Restrictor Orifice Assembly.

Tubing Tubing Dial Screw 2-56 x .13 (2 required) Mounting Screw 8-32 x .63 Mounting Screw 8-32 x .38 (2 required) Diaphragm Nut Nut #10-32 Gasket (orifice) Tubing

29

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DOOR ASSEMBLIES (See Table)

CASE ASSEMBLIES (See Table)

30

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DOOR ASSEMBLIES DOOR ASSY. w/SUPPLY GAUGE OPTION

TYPE Standard Non-Indicating w/Shatterproof Glass

425598 483085 483086 483087 483088 483089 483090 483091

w/2 Pos. Bypass 0/Ext. Adjustment w/Door Lock wl2 Pos BYP, Ext. Adj Gas Tight Const.

CASE ASSEMBLIES TYPE

CASE ASSY

Standard 2 Pos Bypass Remote Set Liquid Level Slack Diaph.

Barton 224 D/P Barton 199 D/P

487415 483092 483093 483094 483095 483096 483097

..

RECOMMENDED SPARE PARTS ITEM 1

2 3 4 5

6 7

8

9 10 11

12

STOCK No. 487427 487426 483098 483099 483101 483102 483103 483104 425599 483105 483106 483107 483108

DESCRIPTION Glass, standard 1.00 Latch Shaft Assy.

Bushing, latch Knob Wrench Screw Wrench 4-40 x .25 Shroud Clip (2 required) Screw Shroud 4-40 x .19 (2 required) Door Gasket Door Catch assy.

Bushing (2 required) Shroud, Standard Shroud W/Supply Gauge

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CHASSIS ASSEMBLIES (See Table)

CONTROL MOVEMENT

(SEE TABLE)

CHASSIS ASSEMBLIES w/REMOTE SET (See Table)

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CHASSIS ASSEMBLY includes backplate assy., control movement, nozzle, flapper, proportional band link and control setting knob.

CHASSIS ASSEMBLY W /REMOTE SET includes backplate assy., control movement and link, nozzle, flapper, proportional band link and control setting diaphragm assembly.

PROP. BAND

CONTROL MOVEMENT

CHASSIS ASSEMBLY

483109 483110 483110 483110

483111

15% 100%

200% 300% 100% w/Remote Set 200% w/Remote Set 15% w/Remote Set

487425 483112 483113 483114 483115 483116

CHASSIS ASSEMBLY W/FEEDBACK includes chassis assembly, feedback assembly, and mounting screws. Pre-calibrated for reversibility and control point alignment.

PROP. BAND 100% 200% 200% 200% 200% 200% 200% 300%

CHASSIS ASSY. w/FEEDBACK

w/3-15 Prop. Feedback w/3-15 Prop. Feedback

483117 483118 483119 483120 483121 483122 483123 483124

w/6-30 Prop. Feedback w/3-15 Reset Feedback w/6-30 Reset Feedback w/3-15 Rate Feedback w/6-30 Rate Feedback W/3-15 PID Feedback

RECONIN1ENDED SPARE PARTS

ITEM

STOCK No.

I

483125 483126 487420 483127 483128 483129 483130 483131 483067 483132 483133

2 3

4 5

6 7 8

9 10 11

DESCRIPTION Nozzle Nozzle Block Nozzle Tubing

Block & Barb

"0" Ring Nozzle Screw Flapper

Link Link Screw Movt. Screws 4-48 x .19 (3 required) Mtg. Screw 8-32 x .38 (3 required)

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STANDARD RELAY (Recommended Spare Parts)

DIAPHRAGM H 6306L

HOUSING MTG. SCREW (6) H- 4656 -BL

VALVE STEM H-6203-F DIAPHRAGM SPACER H 3109.8W

DIAPHRAGM ASSY. N2086.EG STEM SPRING H-202-FA

RELAY BIAS SPRING (SEE TABLE)

GASKET H 2025YJ

CAP

1883.AM

RELAY w/REGULATOR (Recommended Spare Parts) LOAD SPRING H 202-E K

VALVE STEM

DIAPHRAGM ASSY. N-2086-EH

H-6203.F

HOUSING MTG. SCREW 16)

H4656 BM

TUBING (GREEN) K 270095

GASKET DIAPHRAGM H 6306-12

TUBING (BLUE) K 270094

NOZZLE DIAPHRAGM H.6306 L OUTPUT DIAPH. ASSY.

VALVE SPRING H202 FA

N2086EG

DIAPHRAGM SPACER H.3109-8W BIAS SPRING (SEE TABLE)

VALVE STEM H 6203-F GASKET H-2025. YJ

VALVE SPRING H 202 FA

CAP H 1883 AM

TUBING (RED) K 270096 (NOT SHOWN)

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OUTPUT GAUGE 00.0...(SEE TABLE)

SUPPLY GAUGE (SEE TABLE)

PUSHBUTTON ORIFICE & CLEANER ASSY. N-2087-A GASKET H-2025-UQ

BARB (3) K 080112 GASKET (3) K 230020

TUBING K 270091

MTG. SCREW (NOT SHOWN)

(4) 8-32 X .38 K 802803

RELAY W/OUTPUT GAUGE

RANGE PSI

PASCAL

3/15

20/100 kPa 40/200 kPa 80/400 kPa 20/100 kPa 40/200 kPa 20/100 kPa 40/200 kPa 80/400 kPa 20/100 kPa

6/30 12/60 3/15*

6/30 3/15 6/30* 12/60 3/15

3/15*

6/30 12/60

20/100 kPa 40/200 kPa 801400 kPa

RELAY W/SUPPLY GAUGE

TYPE

RELAY ASSEMBLY. wiSUPPLY GAUGE

Standard Standard Standard w/Regulator w/Regulator D/P** D/P** D/P** Slack Force Balance

487411 487403 483151 483152 483153 487419 483154 483155 483156

Output Gauge

Supply Gauge

Rias Spring

487412 487404 483157

487413 487405 483158

487414 487406 487406

* Can be used for 3-27 PSI (20/186 kPa) ** Remote Supply Tubing (Not Shown), 483159

FILTER FITTINGS (Required for Multi-mode Feedback) BAG OF (10) REPLACEABLE FILTER ELEMENTS

SPEC. 85688

OUTPUT FILTER FITTING N1541-A

SUPPLY FILTER FITTING N-1541-B

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MULTI-MODE FEEDBACK ASSEMBLIES

RESET VALVE

RATE VALVE ASsy, (SEE TABLE)

ASSY SEE TABLE)

200% PROP. + RESET

RESET VALVE ASSY. (SEE TABLE)

200% PROP. + RATE

RATE VALVE ASSY (SEE TABLE)

RESET AND RATE VALVE ASSEMBLY

300% PROP. + RESET + RATE

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MULTI-MODE FEEDBACK ASSEMBLY OUTPUT PRESSURE

MODE

PSI

PASCAL

200% Prop. + Reset 200% Prop. + Reset 200% Prop. + Rate 200% Prop. + Rate 300% Prop. + Reset + Rate

3/15 6/30 3/15 3/15

20/100 kPa 40/200 kPa 20/100 kPa 40/200 kPa 20/100 kPa

300% Prop. + Reset + Rate

6/30

40/200 kPa

6130

VALVE ASSEMBLY.

COMPLETE ASSEMBLY

483165 483165 483166 483166 483165 483166 483165 483166

487410 487407 483161 483162 483163 483164

COMPLETE ASSEMBLY includes capsule Assembly., valve Assembly., link, adjust link, tubing, knurl nut, hex nut, valve mtg. screws, and feedback mtg. screws.

RECOMMENDED SPARE PARTS ITEM 1

2 3

4 5 6 7 8

9 10 11

12

STOCK No.

DFSCRIPTION

483167 483168 483169 483170 483171 483172 483173 483174 483175 483176 483177 483178 483179

Link Assembly., 200% Prop.

Link Assembly., 300% Prop.

Adj. Link Tubing Knurl Nut Hex Nut 2-56 Valve Screw 4-40 x .38 (2 required per valve) Mtg. screw 8-32 x .25 (2 required) Filter "0" Ring "0" Ring "0" Ring Set Screw 4-40 x .13 (2 required)

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PROPORTIONAL FEEDBACK ASSEMBLIES COMPLETE ASSEMBLY includes Capsule Assembly., Mtg. Bracket, Spring, Nut, Tubing, Link & Mtg. screws.

CAPSULE ASSY (SEE TABLE 1

SPRING

LINK (SEE TABLE)

N- 202 AG

NUT (ZERO AD.)) H- 50I-DC TUBING

K270099 MTG SCREW (2) 8- 32 I 25

K803802 MTG BRACKET

K030140

BAND 1-15% 1-15% 1-100% 1-100%

2-200% 2-200% 2-200%

OUTPUT PRESSURE PSI

PASCAL

3/15 6/30

20/100 kPa 40/200 kPa 20/100 kPa 40/200 kPa 20/100 kPa 40/200 kPa 80/400 kPa

3/15 6-30 3/15 6/30 12/60

LINK

CAPSULE ASSEMBLY.

COMPLETE ASSEMBLY

483183 483183 483183 483183 483168 483168 483168

483184 483185 483186 483184 483187 483188 483189

487408 483190 487409 487408 483191 483192 483193

REMOTE SET FEEDBACK ASSEMBLIES COMPLETE ASSEMBLY includes Capsule Assembly., Mtg. Connector, Link, tubing, Conn. Mtg. screws, & Capsule Mtg. Screws.

LINK N- 2027 -EA

MTG SCREW (2) 8 -32 38 1(802803

TUBING K270102

MTG SCREW (3) 3- 48 I .19 K801301

OUTPUT PRESSURE

COMPLETE

PSI

ASSEMBLY.

3/15 3/27

PASCAL 20/100 kPa 20/186 kPa

483230 483231

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Solutions through engineered products.

ORRISEAL A DOVER) RESOURCES COMPANY

Headquarters, Manufacturing Plant and Sales: P.O. Box 40525 * Houston, TX 77240-0525 11122 West Little York * Houston, TX 77041-5016 Phone: 713-466-3552 * Fax: 713-896-7386

Due to the continuous improvement at NORRiSEAL, specifications and/or prices are subject to change without notice or obligation.

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