Special Functions ERZ 9000 T
Status: 07 / 05 Subject to change.
CONTENTS 1 1.1 1.2 1.3 1.3.1 1.3.2 1.4
Dual-Route Correctors General Examples Summary of device functions to be called up with function keys Totalizers Clear / Fault Terminal assignment diagram
3 3 4 6 6 7 8
1
Dual-Route Correctors
1.1
General Introduction A dual-route corrector enables quantities to be added up on different totalizers. Examples of such applications are the supply of a gas line with gas of different qualities or the dual-route operation of a gas line when storing gas in an underground storage facility, for example, or taking it out from there. Preselection of the mode of operation Dual-route operation can be activated in the Clear/Fault column. The matrix (Y23) allows you to preselect "normal" or "dual-route" operation. Selection of the mode of operation cannot be made freely, but is sealed by means of the slide switch. Totalizers In the dual-route mode of operation, a corrector is fitted with the double number of totalizers, i.e. main totalizers and disturbing-quantity totalizers are available twice. Depending on the preselected route, quantities are added up either on "Route l" totalizers or "Route 2" totalizers. Energy totalizers are only active with calorific value correctors (ERZ 9102 T, ERZ 9102/4 T and ERZ 9104 T) and otherwise are masked out. Route switching Switching is made via a contact (connector J6, pins 9 and 10). lf this contact is open, route 1 will be active; if it is closed, route 2 will be activated.
3
1.2
Examples Dual-route operation
CORR
RSU
GM
KH 1
KH 3
KH 2
KH 4
A
B
This example of installation shows a gas flow whose direction can be selected so that it is either from A to B or from B to A. The gas flow is metered by means of a gas meter (GM) with a downstream corrector (CORR) incorporating reversible totalizers. lnspite of the changing gas flow direction, the gas must always pass the gas meter in the same direction. This is achieved by using the route fittings KH 1 to KH 4. Route switching Route from A to B: Route from B to A:
KH 1 and KH 3 are open, KH 2 and KH 4 are closed. KH 1 and KH 3 are closed, KH 2 and KH 4 are open.
Prior to selecting the other route, all fittings KH 1 to KH 4 are closed. Depending on status signals from the fittings, the appropriate route is signalled by the automatic system of the substation. The end positions (open or closed) of the route fittings are continuously monitored by means of the status signals. The route signalling unit (RSU) switches the totalizers of the corrector.
4
Change in gas quality
CORR
RSU
GM
KH 1
A
KH 2
B
C
This example of installation shows a gas flow in the direction of C from either A or B. The gas qualities supplied by A and B are different. The gas flow is metered by means of a gas meter (GM) with a downstream corrector (CORR) incorporating reversible totalizers. Route switching Route from A to C: KH 1 is open, KH 2 is closed. Route from B to C: KH 2 is open, KH 1 is closed. Prior to selecting the other route, the two fittings KH 1 and KH 2 are closed. Depending on status signals from the fittings, the appropriate route is signalled by the automatic system of the substation. The end positions (open or closed) of the route fittings are continuously monitored by means of the status signals. The route signalling unit (RSU) switches the totalizers of the corrector.
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1.3
Summary of device functions to be called up with function keys
1.3.1 Totalizers
Totalizer ↓ Direct access 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 43 44 45 46
A A A A A A A A A A A A A A A A E B B B B E E E E E E E E E E E E E E E E A A A A
U (21) Ve Vac Va Vn Ve* Vac* Va* Vn* VeD VacD VaD VnD VeD* VacD* VaD* VnD* Tot-mod: Tot1-S Tot2-S Tot1-sf Tot2-sf Vac-set / 1 Vn-set / 1 Ve-set / 1 Va-set / 1 VacD-set / 1 VnD-set / 1 VeD-set / 1 VaD-set / 1 Vac-set / 2 Vn-set / 2 Ve-set / 2 Va-set / 2 VacD-set / 2 VnD-set / 2 VeD-set / 2 VaD-set / 2 FVe FVac FVa FVn
Description of coordinates Main totalizer for energy Main totalizer for corrected volume at actual conditions Main totalizer for uncorrected volume at actual conditions Main totalizer for standard volume Main totalizer for energy Main totalizer for corrected volume at actual conditions Main totalizer for uncorrected volume at actual conditions Main totalizer for standard volume Disturbing quantity totalizer for energy Disturbing quantity totalizer for corr. vol. at act. conditions Dist. quantity totalizer for uncorrected vol. at act. cond. Disturbing quantity totalizer for standard volume Disturbing quantity totalizer for energy Disturbing quantity totalizer for corr. vol. at act. conditions Dist. quantity totalizer for uncorrected vol. at act. cond. Disturbing quantity totalizer for standard volume Mode: main totalizer = alarm stop / alarm run Selecting output contact 1 (Va, Vac, Vn) Selecting output contact 2 (Va, Vac, Vn) Totalizer factor output contact 1 = 1/10/100/1000/10000 Totalizer factor output contact 2= 1/10/100/1000/10000 Setting: main totalizer for corr. volume at actual cond. Setting: main totalizer for standard volume Setting: main totalizer for energy Setting: main totalizer for uncorr. volume at actual cond. Setting: disturb. quant. totalizer for corr. vol. at act. cond. Setting: disturbing quantity totalizer for standard volume Setting: disturbing quantity totalizer for energy Setting: disturb. quant. totalizer for uncorr. vol. at act. cond. Setting: main totalizer for corr. volume at actual conditions Setting: main totalizer for standard volume Setting: main totalizer for energy Setting: main totalizer for uncorr. volume at actual cond. Setting: disturb. quant. totalizer for corr. vol. at act. cond. Setting: disturbing quantity totalizer for standard volume Setting: disturbing quantity totalizer for energy Setting: disturb. quant. totalizer for uncorr. vol. at act. cond. Freeze: energy Ve Freeze: corrected volume at actual conditions Vac Freeze: uncorrected volume at actual conditions Va Freeze: standard volume Vn
Route 1 Route 1 Route 1 Route 1 Route 2 Route 2 Route 2 Route 2 Route 1 Route 1 Route 1 Route 1 Route 2 Route 2 Route 2 Route 2
Route 1 Route 1 Route 1 Route 1 Route 1 Route 1 Route 1 Route 1 Route 2 Route 2 Route 2 Route 2 Route 2 Route 2 Route 2 Route 2
Unit kWh m3 m3 m3 kWh m3 m3 m3 kWh m3 m3 m3 kWh m3 m3 m3
m3 m3 kWh m3 m3 m3 kWh m3 m3 m3 kWh m3 m3 m3 kWh m3 kWh m3 m3 m3
Comment(s) 5) 2)
5) 2)
5) 2) 5) 2) 1) 3) 1) 6) 1) 6) 1) 1) 2) 4) 4) 4) 5) 4) 2) 4) 4) 4) 5) 4) 2) 4) 4) 4) 5) 4) 2) 4) 4) 4) 5) 4) 5) 2)
6
Comments on the Totalizer column The number of digit positions preceding or following a decimal point depends on the size of the flow meter preset in the ID data field. Size <= G 2500 Digit positions preceding / following a decimal point 10 3 9 3 9 3
Vn Va Vac 1) 2) 3)
Size > G 2500 Digit positions preceding / following a decimal point 11 2 10 2 10 2
Rolling texts! Press the MODE key to make your changes. ECL (J19) = none: The field is not displayed. Tot-mod = alarm stop: In the event of an alarm the main totalizers stop and the disturbing quantity totalizers start to run. Tot-mod = alarm run: In the event of an alarm the main totalizers continue to run and in addition to this, the disturbing quantity totalizers start to run. To set the totalizer, you must first input the code number and then set the calibration switch to "Input". Attention! Observe the sequence of operations. This line is displayed for superlor calorific value correctors only.
4) 5)
1.3.2 Clear / Fault
â&#x2020;? â&#x2020;&#x201C; Direct access 1 2 3 4 5 6 7 17 20 21 22 23 29
1) 2)
A A A A A A A B E B E E E
Y (25) Heading Status time date clear fault(s) ? CF Def.Wr: Fault-mod rn mod External AD corr. 2-Way? PGC-Timeout
Description of coordinates Indication of faults Fault No. / text or "no error" for undisturbed operation Time of the first fault message Date of the first fault message Indirect clearing function Indication of the time of clearing the last faults Coordinate where a default value is written Fault clearing mode = direct / indirect Mode for standard density = rhon[f] / rhon[I] Mode for J 8 input (pins 1 & 2) = freeze / print Input of A/D converter correction value Routing mode: normal / dual route Input of PGC monitoring time
Unit
Comment(s)
1) 1) 1) 2)
Rolling texts! Press the MODE key to make your changes. The Flow Computer monitors the measuring internals of the PGC, settable in minutes. Special case: monitoring is switched off at 999. This is of importance if a revision of the PGC is to be made.
7
Printer C1
5
5
5 9
16
1) Set jumper externally
1 6
16
9
Spare C5
Spare C4
9
16
16
9
5
5
9
FE-06 C3
DSfG C2
Density
Ext.print / Freeze
SDT ref.
SDT meas.
VOS
J7
9 10
+
-
Vol.ref.
Vol.meas.
Hs M/H
rn M / H.
Hs calib.
rn calib.
PE
11
10
9
8
+
7
6
+
5
4
+
3
2
1
+
-
+
-
+
J7 - 1 calibrating rn J7 - 2 calibrating Hs J7 - 3 checking rn (measuring / holding) J7 - 5 checking Hs (measuring / holding) J8 - 1/2 selectable via MODE
11
8
-
PE
7
6
+
5
4
+
3
2
+
1
+
Frequency inputs and status signals
J8
I5 TD / CO2 -
+ 7
6
5
1 2 3 4
11
10
PE
9 +
Gas analysis switching open = analysis 2
li
V
V+ T+ t-meas. Pt100 TV-
Analog inputs
J6
I4 tcn
I3 rn
I2 Hs
I1 p
li
li
li
li
PE
10
-
11
1)
9
8
7
6
5
+
V
-
+
V
-
+
4
3
V
2
1
+
V
Analog inputs
J5
1.4 Terminal assignment diagram Inputs
8