Comeco-GTS Transmitters by Naeem Aziz

transmitters Fixed-Input Temperature Transmitter TRN ♦ ♦ ♦ ♦ ♦ ♦

Low cost 2- or 3-wire output line connection High resistance to electromagnetic disturbances ZERO and SPAN adjustment In-head and DIN-rail versions IP65 box and Ex housing available

COMECO's current loop transmitter TRN converts the signal from a temperature sensor into standard current or voltage signal that can be safely sent over long distances to remote indicators, data loggers, or controllers. In addition to the most common thermoresistance and thermocouple sensors, TRN may convert linear analog input signals (current or voltage). The transmitter is based on high-tech integral circuits and has fixed input range. Two-wire- and three-wire-output variants are offered. Both are available in case for mounting inside sensor protection head, in watertight box with high protection class, in case for mounting on a DIN rail, and in case prepared for mounting in Ex housings. TRN can withstand considerable electromagnetic disturbances and is a perfect low-cost solution for general-purpose applications.

Technical specifications Input

Accuracy min. -50...max. 500 °C (1) min. -50...max. 250 °C (1) min. -50...max. 250 °C (1) min. -50...max. 500 °C (1) min. 0...max. 1000 °C (1) min. 0...max. 1000 °C (1) min. 0...max. 1300 °C (1) min. 0...max. 800 °C (1) min. 0...max. 800 °C (1) min. 0...max. 400 °C (1) min. 0...max. 600 °C (1) min. 0...max. 20 mA (1) min. 0...max. 10 V (1) RTD: 50 °C, T/C: 250 °C ± 10%

Pt50...1000; 2- or 3-wire Cu100; 2- or 3-wire Cu50; 2- or 3-wire Other thermoresistive Thermocouple "E" Thermocouple "J" Thermocouple "K" Thermocouple "L" Thermocouple "L - GOST" Thermocouple "T" Thermocouple "U" Linear current Linear voltage Minimum input range width ZERO and SPAN adjustment

Output 4...20 mA 0...5 mA, 0(4)...20 mA 0...1/ 2/ 5/ 10 V, 1...5 V, 2...10 V temperature input voltage Low: < 3.5 mA, High: > 23 mA Low or High, depends on terminal High

2-wire current 3-wire current 3-wire voltage RTD linearly proportional to T/C linearly proportional to Current limits Reaction at RTD failure Reaction at T/C failure

Measurement error Non-linearity for RTD input Self-heating error Temperature drift Cold junction compensation

0.3% from span 0.3% from span 0.02%/mA at 24 V 0.02% from span for 1 °C automatic hardware, ± 1 °C

Power supply Supply voltage: - for 2-wire output - for 3-wire current output - for 3-wire voltage output Consumption Admissible variations Maximum line load

8...32 VDC (for RTD / linear input) or 12...36 VDC (for T/C input) 8...36 VDC (Umax+3)...36 VDC up to 2 mA (3-wire output) 1 Vp-p at 50 Hz 620 Ω (750 Ω for T/C) at 24V/20mA

Operating conditions -20...70 °C 0...95 %RH, non-condensing

Ambient temperature Ambient humidity

Design and materials Case material Wiring Mounting Dimensions [mm] Weight Protection class

in head (2,3,4) ø44x19 30 g IP20

plastic screw terminals on rail in box (3) 18x90x58 80x80x60 90 g 170 g IP20 IP65

(1)

Specify lower and upper span ranges when ordering. Head type "B" or any other with 33 mm distance between centers of the female threaded openings May be mounted on rail by a special snap-on accessory, which is ordered separately (see 'Accessories'). (4) May be mounted in different, separately ordered Ex housings for field applications (see 'Accessories'). (2)

Ordering code

TRN - G6'6".G11'11".G12

Code Feature or option G6'

G6"

(5)

Code values

Variant

2 - with 2-wire output line, 3 - with 3-wire output line

Input signal

Sensor

B - thermoresistance, C - thermocouple, D - linear RTD

B - Pt50, D - Pt100, F - Pt500, G - Pt1000, H - Cu50, K - Cu100, Z - other

T/C

J - "J", K - "K", E - "E", L - "L", T - "T", U - "U"

linear

A - 0…5 mA, B - 0…20 mA, C - 4…20 mA, H - 0…1 V, I - 0…2 V, J - 0…5 V, K - 0…10 V, Z - other

G11'

Output signal (5)

B - 0…5 mA, C - 1…5 mA, D - 2…10 mA, E - 0…20 mA, F - 4…20 mA, G - 0…1 V, H - 0…2 V, I - 0…5 V, J - 1…5 V, K - 0…10 V, L - 2…10 V, Z - other

G11"

Transmission range

(RANGE) (see table above)

G12

Mounting

B - in head (2,3), C - on DIN rail, D - in box IP65 (box included) (3), E - in Ex housing (includes mounting kit only)

For 2-wire output line, output signal can only be 4...20 mA (G11' = "F")!!!

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

COMECO reserves the right of changing specifications without prior notice!

(3)

transmitters Transmitter with Selectable Input TRA ♦ ♦ ♦ ♦ ♦ ♦ ♦

Low cost High resistance to electromagnetic disturbances Up to 10 selectable ranges for Pt100 sensors Up to 10 selectable thermocouples In-head and DIN-rail versions ATEX approved version IP65 box and Ex housing available

COMECO's temperature transmitter TRA is a compromising solution between the analog transmitters with fixed range and the programmable transmitters. TRA allows on-site selection of input range and sensor type (for thermocouples) as well as transmitter reaction to sensor failure by the means of a group of soldering bridges (jumpers). The exact range is adjustable by ZERO and SPAN potentiometers. TRA is available in case for mounting inside sensor protection head, in watertight box with high protection class, in case for mounting on a DIN rail, and in case prepared for mounting in Ex housings. An ATEX approved version is also available, and when used with external Zener barrier, all other transmitter versions are applicable for Ex zones. Thanks to its flexibility, excellent resistance against electromagnetic disturbances, and low price, TRA is easy to use and very widely applicable.

Technical specifications Input

Accuracy

Pt100 (w=1.385); 3-wire Thermocouple "E" Thermocouple "J" Thermocouple "K" Thermocouple "L" (2) Thermocouple "L - GOST" (2) Thermocouple "N" Thermocouple "R" (3) Thermocouple "S" (3) Thermocouple "T" Thermocouple "U" (3) Range selection Thermocouple selection ZERO adjustment SPAN adjustment

0…50/ 100/ 150/ 200/ 300/ 400/ 500 °C; -50…50/ 100 °C (1); 0…250 °C (1) 0...300/ 400/ 500/ 600 °C 0...400/ 500/ 600/ 800 °C 0...600/ 800/ 1000/ 1200 °C 0...700 °C 0...600 °C 0...800/ 1000/ 1200 °C 0...1200/ 1400/ 1600 °C 0...1200/ 1400/ 1600 °C 0...100/ 200/ 300 °C 0...100/ 200/ 300/ 400 °C with jumpers with jumpers ± 50 °C ± 10% ± 10%

Output Signal type RTD linearly proportional to T/C linearly proportional to Current limits Reaction at RTD failure: - for variant '1' - for variant '2' Reaction at T/C failure

4...20 mA temperature input voltage Low: < 3.5 mA, High: > 23 mA Low or High depends on terminal selectable High

Measurement error Non-linearity Self-heating error Temperature drift Cold junction compensation

0.3% from span 0.3% from span 0.02%/mA at 24 V 0.02% from span for 1 °C automatic hardware, ± 1 °C

Power supply Supply voltage Admissible variations Maximum line load: - for variant '1' - for variant '2'

8...32 VDC 1 Vp-p at 50 Hz 620 Ω (800 Ω for T/C) at 24V/20mA 700 Ω (800 Ω for T/C) at 24V/20mA

Operating conditions Ambient temperature: - for variant '1' - for variant '2' Ambient humidity

-20...70 °C -40...85 °C 0...95 %RH, non-condensing

Design and materials Case material Wiring Mounting Dimensions [mm] Weight Protection class

(4,5,6)

in head ø44x19 30 g IP20

plastic screw terminals (1) on rail in box (5) 18x90x58 80x80x60 90 g 170 g IP20 IP65

(1)

Available only for variant '1'. Ask for availability! Available only when in case for DIN-rail mounting (G12 = "C")! (4) Head type "B" or any other with 33 mm distance between centers of the female threaded openings (5) May be mounted on rail by a special snap-on accessory, which is ordered separately (see 'Accessories'). (6) May be mounted in different, separately ordered Ex housings for field applications (see 'Accessories'). (3)

Ordering code

TRA - G6.G12 - #1.#2

Code Feature or option

(7) (8)

Code values

Variant

1, 2

Input

B - Pt100, C - thermocouple (7)

G12

Mounting

B - in head (4,5), C - on DIN rail (1), D - in box IP65 (box included) (5), E - in Ex housing (includes mounting kit only)

Pre-set transmission range

X - none, (RANGE) (see table above)

ATEX approval

X - none, EX - ATEX II 1G Ex ia IIB T4-T6 approved (8)

Thermocouple type is user selectable by jumpers. Available only for variant '2'.

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

COMECO reserves the right of changing specifications without prior notice!

(2)

transmitters Programmable In-head RTD Transmitter TROJ ♦ ♦ ♦ ♦ ♦ ♦ ♦

For low-budget applications Pt100 input Programmable conversion range 2-wire 4…20 mA output Low profile Vibration-proof design Programming via free "TraCon" software

Technical specifications Input Input (RTD) type Measurement range Minimum programmable span

Output Signal type Maximum load Sensor failure reaction

(programmable) Pt100 (w=1.385) min. -50...max. 200 °C or min. -50...max. 600 °C 50 °C (programmable) 4...20 mA or 20...4 mA, 2-wire 800 Ω at 24V/20mA < 3.9 mA or > 20.2 mA, programmable

Accuracy Measurement error Self-heating error Non-linearity Temperature drift RTD 3-wire line compensation

0.2% from span or 0.2 °C (1) 0.005%/mA at 24 V within measurement error 0.01% from span for 1 °C up to 25 Ω per wire

Power supply 10...32 VDC 1 Vp-p at 50 Hz

Loop supply voltage Admissible variations

Interface Interface type Configuration software

RS232, requiring special cable (2) "TraCon", free

Operating conditions Ambient temperature Ambient humidity

-20...70 °C 0...95 %RH, non-condensing

Design and materials Case material Wiring Mounting Interface connector Interface cable type (2) Dimensions [mm] Weight Protection class

in head (3,4,5) 4-pin K1, K11U ø44x19 25 g IP20

plastic screw terminals in box (4) 4-pin K1, K11U 80x80x60 170 g IP65

(1)

Which is greater Ordered separately (3) Head type "B" or any other with 33 mm distance between centers of the female threaded openings (4) May be mounted on rail by a special snap-on accessory, which is ordered separately (see 'Accessories'). (5) May be mounted in different, separately ordered Ex housings for field applications (see 'Accessories'). (2)

Ordering code

TROJ - G12

Code Feature or option

1 - for min. -50...max. 200 °C, 2 - for min. -50...max. 600 °C

Mounting

B - in head (3,4), D - in box IP65 (box included) (4), E - in Ex housing (includes mounting kit only)

COMECO reserves the right of changing specifications without prior notice!

G12

Code values

Variant

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

transmitters Low-cost Programmable Transmitter TRC ♦ ♦ ♦ ♦ ♦ ♦

Smallest in-head programmable transmitter Pt100 and 8 T/C programmable ranges 2- or 3-wire current and voltage output Serial interface for configuration In-head and DIN-rail versions IP65 box and Ex housing available

COMECO's temperature transmitter TRC is part of a revolutionary new project for the smallest (in-head) and cheapest multi-input programmable transmitter. It has a universal input accepting Pt100 RTD and 8 thermocouples and a voltage or current 2- or 3-wire output linearly proportional to the measured temperature. This model allows on-site selection of sensor type, input range and conversion direction as well as sensor failure reaction and no user calibration is necessary to be provided. TRC is available in a case for mounting inside sensor protection head, in a watertight box with high protection class, and in a case for mounting on DIN rail. The serial interface allows fast and easy configuration. Thanks to the combination of performance, reliability, simplicity, flexibility, and low price, the TRC transmitter is easy to use and very widely applicable.

Technical specifications Input

(programmable) min. -200…max. 600 °C min. 200...max. 1800 °C min. -20...max. 600 °C min. -20...max. 900 °C min. -20...max. 1200 °C min. -20...max. 1200 °C min. 0...max. 1700 °C min. 0...max. 1700 °C min. -40...max. 400 °C direct or reverse, programmable

Pt100 (w=1.385); 3-wire Thermocouple "B" Thermocouple "E" Thermocouple "J" Thermocouple "K" Thermocouple "N" Thermocouple "R" Thermocouple "S" Thermocouple "T" Input / output conversion

Output

'2'

Voltage - minimum load Current - maximum load Sensor failure reaction

'3'

0...10 V 1 MΩ 0(4)...20 mA 4...20 mA 750 Ω at 24V/20mA 800 Ω at 24V/20mA < 3.9 mA or > 20.2 mA, downscale or upscale, programmable programmable

Power supply Supply voltage Admissible variations

8...36 VDC 1 Vp-p at 50 Hz

9...36 VDC (1) 1 Vp-p at 50 Hz

Accuracy 0.3% from span within measurement error 0.005%/mA at 24 V 0.01% from span for 1 °C automatic software, ± 0.5 °C up to 25 Ω per wire

Measurement error Non-linearity Self-heating error Temperature drift Cold junction compensation RTD 3-wire line compensation

Interface RS232, requiring special cable (2) "TraCon", free

Interface type Configuration software

Operating conditions -20...70 °C 0...95 %RH, non-condensing

Ambient temperature Ambient humidity

Design and materials Case material Wiring Mounting Interface connector Interface cable type (2) Dimensions [mm] Weight Protection class

in head (3,4,5) 4-pin K1, K11U ø44x19 30 g IP20

plastic screw terminals in box (4) on rail 3-pin 4-pin K2, K12U K1, K11U 18x90x58 80x80x60 90 g 170 g IP20 IP65

(1)

13...36 VDC for output 0...10 V Ordered separately Head type "B" or any other with 33 mm distance between centers of the female threaded openings (4) May be mounted on rail by a special snap-on accessory, which is ordered separately (see 'Accessories'). (5) May be mounted in different, separately ordered Ex housings for field applications (see 'Accessories'). (2) (3)

Code Feature or option G11 G12 (6)

Variant

Code values 2 - with 2-wire output line, 3 - with 3-wire output line

Output signal (6)

E - 0…20 mA, F - 4…20 mA, K - 0…10 V, Z - other

Mounting

B - in head (3,4), C - on DIN rail, D - in box IP65 (box included) (4), E - in Ex housing (includes mounting kit only)

For 2-wire output variant only 4...20 mA is available!

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

COMECO reserves the right of changing specifications without prior notice!

Ordering code TRC - G11.G12

transmitters Low-cost SMART Transmitter TRB ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦

Universal programmable input User-selectable 4 RTD types and 6 thermocouples Accepts linear current, voltage, and resistive signals Programmable input and output range Built-in programmable digital filter Manual output control Serial interface for programming IP65 box and Ex housing available

The intelligent non-isolated transmitter TRB, manufactured by COMECO, is available in case prepared for mounting in Ex housings, in casing for in-head mounting, and in another for DIN-rail mounting, as well as mounted into an IP65 protection box. This transmitter allows the user to: - select sensor and input signal type; - select and adjust input range; - perform offset correction and device calibration; - specify input ranges and output type (4…20 mA / 20…4 mA); - select decimal point position and measurement unit; - select output reaction at sensor failure; - adjust the digital filter. The TRB transmitter is easy to program via the specialized configuration software "TraCon". Thanks to its large capabilities and low price, TRB can be very useful in various industrial applications requiring temperature conversion before following measurement and control.

Technical specifications Pt100 (w=1.385); 3-wire Pt1000 (w=1.385); 3-wire PTC (1k at 25 °C); 3-wire PTC (2k at 25 °C); 3-wire RTD minimum range width Thermocouple "T" Thermocouple "J" Thermocouple "K" Thermocouple "S" Thermocouple "R" Thermocouple "B" T/C minimum range width Linear current Linear voltage Linear resistive Custom linear (option) Offset adjustment Digital low-pass filter Digital peak filter

Input monitoring Sensor failure reaction

(programmable) min. -100...max. 850 °C min. -100...max. 600 °C min. -50...max. 150 °C min. -50...max. 150 °C 50 °C min. -40...max. 400 °C min. -20...max. 1000 °C min. -20...max. 1300 °C min. 0...max. 1700 °C min. 0...max. 1700 °C min. 200...max. 1800 °C 100 °C 0(4)...20 mA 0...100 mV or 0...10 V (1) 0...1 kΩ on request (2) within range limits programmable programmable (programmable) < 3.8 mA or > 20.2 mA, programmable

Output

(programmable) 4...20 mA or 20...4 mA measured value 4 μA through interface 0...100%, programmable

Signal type Linearly proportional to Resolution Output calibration Manual output control

Accuracy Measurement error Non-linearity Temperature drift Cold junction compensation

0.3% from span within measurement error 0.01% from span for 1 °C automatic software, ± 0.5 °C

Power supply 8...32 VDC ± 10% 750 Ω at 24V/20mA

Supply voltage Maximum line load

Interface RS232, requiring special cable (3) "TraCon", free

Interface type Configuration software

Operating conditions -20...70 °C 0...95 %RH, non-condensing

Ambient temperature Ambient humidity

Design and materials Case material Wiring Mounting Interface connector Interface cable type (3) Dimensions [mm] Weight Protection class

in head (4,5,6) 4-pin K1, K1U, K11U ø44x23 40 g IP20

(1)

Ask for availability! Instead of linear current (3) Ordered separately (4) Head type "B" or any other with 33 mm distance between centers of the female threaded openings (5) May be mounted on rail by a special snap-on accessory, which is ordered separately (see 'Accessories'). (6) May be mounted in different, separately ordered Ex housings for field applications (see 'Accessories'). (2)

Ordering code

TRB - G12 - #1

Code Feature or option

Code values

G12

Mounting

B - in head (4,5), C - on DIN rail, D - in box IP65 (box included) (5), E - in Ex housing (includes mounting kit only)

Auxiliary input signal

X - none, Z - linear signal (specify!) (2)

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

plastic screw terminals in box (5) on rail 3-pin 4-pin K2, K1, K2U, K12U K1U, K11U 18x90x58 80x80x60 60 g 180 g IP20 IP65

COMECO reserves the right of changing specifications without prior notice!

Input

transmitters Isolated SMART Transmitter TRBI ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦

1500 VAC input / output isolation Universal programmable input User-selectable 4 RTD types and 6 thermocouples Accepts linear current, voltage, and resistive signals Programmable input and output range Built-in programmable digital filter Manual output control Serial interface for programming IP65 box and Ex housing available

The intelligent isolated transmitter TRBI, manufactured by COMECO, is available in case prepared for mounting in Ex housings, in casing for in-head mounting, and in another for DIN-rail mounting, as well as mounted into an IP65 protection box. This transmitter allows the user to: - select sensor and input signal type; - select and adjust input range; - perform offset correction and device calibration; - specify input ranges and output type (4…20 mA / 20…4 mA); - select decimal point position and measurement unit; - select output reaction at sensor failure; - adjust the digital filter. The TRBI transmitter is easy to program via the specialized configuration software "TraCon". Thanks to its large capabilities and low price, TRBI can be very useful in various industrial field applications requiring signal isolation.

Input monitoring Sensor failure reaction

Output

(programmable) 4...20 mA or 20...4 mA measured value 4 μA through interface 0...100%, programmable

Signal type Linearly proportional to Resolution Output calibration Manual output control

Accuracy Measurement error Non-linearity Temperature drift Cold junction compensation

0.3% from span within measurement error 0.01% from span for 1 °C automatic software, ± 0.5 °C

Power supply 8...32 VDC ± 10% 750 Ω at 24V/20mA

Supply voltage Maximum line load

Interface RS232, requiring special cable (3) "TraCon", free

Interface type Configuration software

Operating conditions -20...70 °C 0...95 %RH, non-condensing

Ambient temperature Ambient humidity

Design and materials Case material Wiring Mounting Interface connector Interface cable type (3) Dimensions [mm] Weight Protection class

in head (4,5,6) 4-pin K1, K1U, K11U ø44x23 40 g IP20

(1)

Ask for availability! Instead of linear current Ordered separately (4) Head type "B" or any other with 33 mm distance between centers of the female threaded openings (5) May be mounted on rail by a special snap-on accessory, which is ordered separately (see 'Accessories'). (6) May be mounted in different, separately ordered Ex housings for field applications (see 'Accessories'). (2) (3)

Ordering code

TRBI - G12 - #1

Code Feature or option

Code values

G12

Mounting

B - in head (4,5), C - on DIN rail, D - in box IP65 (box included) (5), E - in Ex housing (includes mounting kit only)

Auxiliary input signal

X - none, Z - linear signal (specify!) (2)

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

plastic screw terminals in box (5) on rail 3-pin 4-pin K2, K1, K2U, K12U K1U, K11U 18x90x58 80x80x60 60 g 180 g IP20 IP65

COMECO reserves the right of changing specifications without prior notice!

Input

transmitters HART Programmable Transmitter TRH ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦

2000 VAC input / output isolation Universal programmable input User-selectable 8 RTD types and 8 thermocouples Accepts various linear voltage and resistive signals Programmable input and output features Built-in digital filter Manual output control Programming via HART protocol Free configuration software Intrinsically safe version

The intelligent isolated transmitter TRH is a programmable 2-wire HART device with 2000 V input/output isolation level. It is available in case prepared for mounting in 33 mm sensor heads, plastic protection box, and different Ex housings. The transmitter allows the user to program various input and output features including input signal type and range, output offset and calibration, reaction at sensor failure, fixed output current, digital filter, etc. TRH can be ordered with intrinsically safe option for Ex applications. The transmitter is easy to program via HART modem over the current loop using free configuration software "HartTemp". Thanks to its large capabilities and low price, TRH can be very useful in various industrial field applications requiring signal isolation and HART communication.

Technical specifications Pt100; 3(4)-wire Pt500 (Pt1000); 3(4)-wire (5) Cu50 (Cu100); 3(4)-wire Ni100; 3(4)-wire Ni500 (Ni1000); 3(4)-wire (5) RTD minimum range width Thermocouple "T" Thermocouple "E" Thermocouple "J" Thermocouple "K" Thermocouple "N" Thermocouple "S"("R") Thermocouple "B" T/C minimum range width Linear voltage [mV] Linear voltage [V] Minimum range [mV] Linear resistive Minimum range [Ω] Input / output isolation

Output Output range Linearly proportional to Resolution Response time Switch-on delay Digital filter Output calibration Output manual control Sensor failure reaction (1) (2) (3)

Measurement error - Pt500, Ni500 - Pt1000, Ni1000, Cu100, 0...2 kΩ - other input types Non-linearity Temperature drift Load and power supply influence Long-term stability Cold junction compensation Supply voltage Maximum line load

Communication Configuration software

HART protocol over current loop "HartTemp", free

Operating conditions Ambient temperature Ambient humidity Shocks and vibrations

-40...85 °C 0...90 %RH 4g, 2...150 Hz, according to EN 60068

Design and materials Case material Wiring Mounting Dimensions Weight Protection class Intrinsic safety

Code values

Mounting

B - in head (1,2), D - in box IP65 (box included) (2), E - in Ex housing (includes mounting kit only) (4)

Intrinsic safety

X - none (5), E - Ex ia IIC T4 certified

Customized input and/or range

X - none, Z - custom input signal/range (specify!) (5)

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

7.5...45 VDC 750 Ω at 24V/20mA

Interface

G12

Does not include housing! Contact COMECO

0.2 % from span 0.12 % from span 0.08 % from span within measurement error negligible negligible ≤ 0.05% from span per 1 year internal, automatic

Power supply

TRH - G12 - #1.#2

Code Feature or option

(5)

Accuracy

Head type "B" or any other with 33 mm distance between centers of the female threaded openings May be mounted on rail by a special snap-on accessory, which is ordered separately (see 'Accessories'). May be mounted in different, separately ordered Ex housings for field applications (see 'Accessories').

Ordering code

(4)

(programmable) min. -200...max. 850 °C min. -200...max. 250 °C min. -50...max. 150 °C min. -60...max. 180 °C min. -60...max. 180 (150) °C 10 °C min. -270...max. 400 °C min. -270...max. 1000 °C min. -210...max. 1200 °C min. -270...max. 1372 °C min. -270...max. 1300 °C min. -50...max. 1768 °C min. 0...max. 1820 °C 50 °C (500 °C for noble T/C) -10...75 mV, -100...100 mV (5) -0.5...0.5 V (5), -1...2 V (5) 5 mV (20 mV for 2 V range) min. 0...max. 400(2000) Ω 10 Ω (20 Ω for 2 k range) 2000 VAC for 1 min (programmable) 4...20 mA, 2-wire measured value 0.3 μA 1s ≤5s programmable configuration software 0...100% via configuration software ≤ 3.8 mA, ≥ 20.5 mA

PC plastic with epoxy potting screw terminals in box (2) in head (1,2,3) 80x80x60 mm ø44x24 mm approx. 34 g approx. 170 g IP65 IP00 Ex ia IIC T4 Ex ia IIC T4

COMECO reserves the right of changing specifications without prior notice!

Input

transmitters Universal Isolated SMART Transmitter TRZ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦

11-pin relay socket for fast rail mounting 1500 VAC input / output / supply isolation Programmable input Programmable output Internally generated sensor supply Built-in programmable digital filter Manual output control Serial interface for programming

The intelligent isolated transmitter TRZ can be a proper solution when different signal conversions are needed. This transmitter allows the user to: - select sensor and input signal type (RTD, T/C, mA, mV, V, R); - select and adjust input range; - select output type (0(4)...20 mA or 0...10 V); - control the output manually; - perform offset correction and device calibration; - specify the input-to-output correspondence (direct or reverse); - select decimal point position and measurement unit; - select output reaction at sensor failure; - adjust the digital filter. The TRZ transmitter is easy to program via the specialized configuration software "TraCon". Thanks to its convenient 11-pin connector case, TRZ can be easily fit in a standard UNDECAL socket and mounted on DIN rail.

Technical specifications (programmable) min. -200...max. 850 °C min. -100...max. 600 °C min. -50...max. 150 °C min. -50...max. 150 °C 50 °C min. -40...max. 400 °C min. -20...max. 1000 °C min. -20...max. 1300 °C min. 0...max. 1700 °C min. 0...max. 1700 °C min. 200...max. 1800 °C 100 °C 0(4)...20 mA 0...100 mV, 0…10 V 0...1 kΩ on request (1) within range limits programmable programmable 1500 VAC for 1 min

Pt100 (w=1.385); 3-wire Pt1000 (w=1.385); 3-wire PTC (1k at 25 °C); 3-wire PTC (2k at 25 °C); 3-wire RTD minimum range width Thermocouple "T" Thermocouple "J" Thermocouple "K" Thermocouple "S" Thermocouple "R" Thermocouple "B" T/C minimum range width Linear current Linear voltage Linear resistive Custom linear (option) Offset adjustment Digital low-pass filter Digital peak filter Input / output isolation

Input monitoring

(programmable) 0 mA or > 20.2 mA, programmable

Sensor failure reaction

Output

(programmable) 0(4)...20 mA or 20...0(4) mA max. 600 Ω at 20 mA 0...10 V or 10...0 V min. 2 kΩ at 10 V measured value 4 μA / 2.5 mV through interface 0...100%, programmable 18…28 VDC, max. 30 mA

Current - load Voltage - load Linearly proportional to Resolution Output calibration Manual output control Excitation voltage (1) (2)

Accuracy Measurement error Non-linearity Temperature drift Cold junction compensation

Power supply Mains supply voltage Isolated low voltage Consumption

'Power' LED 'Load' LED 'Alarm' LED

Interface type Configuration software

RS232, requiring special cable (2) "TraCon", free

Operating conditions Ambient temperature Ambient humidity

-20...70 °C 0...95 %RH, non-condensing

Design and materials Case material Mounting Wiring Interface connector Interface cable type (2) Dimensions Weight Protection class

Code values

Power supply

A - 230 VAC, B - 115 VAC, Q - 12…24 V, isolated, R - 24 VAC

Auxiliary input signal

X - none, Z - linear signal (specify!) (1)

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

for power supply ON for voltage output overload for broken current output loop

Interface

TRZ - G1 - #1

Code Feature or option

230 VAC or 115 VAC ± 10% 12…24 V or 24 VAC max. 1.5 VA

Indication

Instead of linear current or voltage 0...10 V Ordered separately (see 'Accessories')

Ordering code

0.3% from span within measurement error 0.01% from span for 1 °C automatic software, ± 0.5 °C

plastic in socket or on 35 mm DIN rail socket UNDECAL (2) 3-pin K2 (RS232) or K12U (USB) 35x78x91 mm 180 g IP20

COMECO reserves the right of changing specifications without prior notice!

Input

transmitters Infrared Temperature Transmitter TRU ♦ ♦ ♦ ♦ ♦ ♦ ♦

Low-temperature remote measurement Object temperature range from -10 to 150 °C Field of view 7.3 ° Linear current or voltage output signal Serial interface available Local programmable indicator available IP66 protection class

The TRU temperature transmitter's operation is based on the principle of sensing infrared radiation, emitted from a heated object, situated at a certain distance from the sensor, at a 7.3 ° conical angle. The sensitive thermopile element comprises of a multitude of thermocouples connected in series and allows measurement of the object surface temperature within the -10…150 °C range. The incorporated electronics converts the sensor output into a standard current or voltage signal suitable for further transmission and processing. Moreover, the transmitter may be equipped with programmable local LED indicator as well as with RS232 serial interface for data transmitting. By the means of specialized software, the information about the object's temperature may be viewed, stored, and printed from a PC. TRU is enclosed in a robust plastic box with connector, both with IP66, and is designed to be either freely mounted or mounted on DIN rail via special brackets. The TRU transmitter is very suitable for these special applications that require non-contact low-temperature-object measurement.

Technical specifications Input

Interface

Input type Material emission coefficient Object temperature range Calibrating distance Calibrating spot Field of view

object infrared emission 5...15 μm ≥ 0.85 min. -10...max. 150 °C 5 cm 3.5 cm 7.3 °

Analog output Output signal Output function Accuracy Temperature drift Maximum output load Output overload reaction

0(4)...20 mA or 0...10 V input signal info retransmission 2% from span 0.02% from span for 1 °C 750 Ω at 24V/20 mA display message

Local indicator (option) 3 LED indicators, 14 mm 1 °C 2 membrane keys

Digital display Display resolution Keyboard

Power supply Supply voltage Admissible variations Consumption

15...32 VDC 4 Vp-p at 50 Hz max. 120 mA

Operating conditions Ambient temperature Storage temperature

-10...65 °C -20...85 °C

Design and materials Case material Mounting Wiring Dimensions Weight Protection class

ABS/PC plastic free (1) 4-pin М12 connector 80x92x65 mm max. 250 g IP66

Radial, axial, and DIN-rail mounting accessories for 80x80x60 mm box can be ordered separately (see 'Accessories').

Ordering code

TRU - G9.G11 - #1

Code Feature or option

(2)

RS232 data transmission

Code values

Serial interface

X - none, A - RS232

G11

Analog output

X - none (2), E - 0…20 mA, F - 4…20 mA, K - 0…10 V, Z - other on request

Local indicator (2)

X - none, A - local indicator mounted

When no output is requested, local indicator must be ordered!

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

COMECO reserves the right of changing specifications without prior notice!

(1)

Interface type Function

transmitters RS485 SMART DIN-Rail Transmitter TRIS ♦ ♦ ♦ ♦ ♦ ♦ ♦

Low-cost network transmitter - up to 32 devices Universal programmable input User-selectable 4 RTD types and 6 thermocouples Accepts linear current and voltage signals Built-in programmable digital filter Convenient programming through RS485 Input / output / supply isolation

TRIS is an intelligent rail-mountable transmitter with universal input and RS485 output, specially designed for multi-point process measurement and data acquisition in a network with up to 32 devices. This transmitter allows the user to: - select sensor and input signal type (4 RTD types, 6 thermocouples, and 4 linear signals); - select and adjust input range; - perform offset correction and device calibration; - select decimal point position and measurement unit; - adjust the digital filter. A network of up to 32 transmitters can be configured and monitored by using the universal COMECO data-acquisition program "PolyMonitor". Thanks to its isolated universal input, networking capabilities, and low price, TRIS is particularly suitable for multi-point data acquisition applications.

Technical specifications Input Pt100 (w=1.385); 3-wire Pt1000 (w=1.385); 3-wire PTC (1k at 25 °C); 3-wire PTC (2k at 25 °C); 3-wire RTD minimum range width Thermocouple "T" Thermocouple "J" Thermocouple "K" Thermocouple "S" Thermocouple "R" Thermocouple "B" T/C minimum range width Linear current Linear voltage Custom linear (option) Offset adjustment Digital low-pass filter Digital peak filter Isolation

(programmable) min. -100...max. 850 °C min. -100...max. 600 °C min. -50...max. 150 °C min. -50...max. 150 °C 50 °C min. -40...max. 400 °C min. -20...max. 1000 °C min. -20...max. 1300 °C min. 0...max. 1700 °C min. 0...max. 1700 °C min. 200...max. 1800 °C 100 °C 0(4)...20 mA 0...100 mV or 0…10 V on request (1) within range limits programmable programmable > 1000 VAC for 1 min

(2)

Configuration software Monitoring and data acquisition software

Accuracy Measurement error Non-linearity Temperature drift Cold junction compensation Supply voltage Consumption

Protocol

12…24 V max. 100 mA

Indication 'ON' LED 'SEL' LED

for power supply ON for active communication

Operating conditions Ambient temperature Ambient humidity Case material Wiring Mounting Dimensions Weight Protection class

TRIS - G9

Code Feature or option G9

0.3% from span within measurement error 0.01% from span for 1 °C automatic software, ± 0.5 °C

Power supply

Instead of linear current Ordered separately

Ordering code

"UniConf", free "PolyMonitor"

-20...70 °C 0...95 %RH, non-condensing

Design and materials RS485 configuration and networking up to 32 8 (data) + 1 (stop), even parity 1200 / 2400 / 4800 / 9600 bps 2500 VAC for 1 min

Interface type Function Network devices Format Baud rate Isolation (1)

(2)

Code values A - ASCII, C - ASCII for "PolyMonitor"

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

plastic plug-in terminals on 35 mm DIN rail 35x110x58 mm 90 g IP20

COMECO reserves the right of changing specifications without prior notice!

Output / Interface

Software

electrochemical control equipment

pH/ORP Preamplifier PHA ♦ ♦ ♦ ♦ ♦ ♦ ♦

Low cost 13 High input impedance – over 10 Ω Low output impedance Temperature compensation available Unipolar or bipolar supply voltage High IP protection class available May be connected to low-cost measurement devices

COMECO’s PHA preamplifier amplifies the voltage from pH or REDOX potential (ORP) probes through a special amplifier that serves as input buffer and provides the high input impedance necessary for normal operation of pH/ORP probes. The low impedance output of the preamplifier may be connected to a standard indicator, data logger, or controller. Two PHA variants are available: - variant '100' with low IP protection class that needs bipolar supply voltage; - variant '150' with high IP protection class and single polarity supply voltage. PHA100 serves only as a high input impedance buffer; no change of voltage signal is performed. PHA150 shifts input signal so that the output voltage has single polarity (its polarity does not change), and allows temperature compensation measurement via an additional Pt100 input. Variant '150' is designed for wall mounting, while PHA100 is to be either left to hang freely on its wires or mounted by the means of a bracket. Both variants are applicable in cases in which there is a need to connect pH/ORP probes to measurement devices without posing special requirements to devices' input circuits and connection cables. The fields of application include biotechnological, chemical, food, and other industries, and research.

Technical specifications Input

Accuracy

Input range: - pH - ORP Temperature compensation input Input impedance Input capacitance

Error Temperature drift

Output

0...14 pH -2000...+2000 mV external Pt100, 0...100 °C > 1013 Ω 0.5 pF

(1)

'100'

'150'

+410...-410 mV -2000...+2000 mV ± 1 mV 1 kΩ

+2910...1090 mV 500...+4500 mV 1 kΩ

± 5...± 8 VDC ± 1% max. 0.1 mA

5...9 VDC ± 5% max. 2 mA

Power supply Supply voltage Admissible variations Consumption

0...60 °C 10...85 %RH -10...70 °C 0...95 %RH

0...70 °C 0...95 %RH (2) -10...70 °C 0...95 %RH

Case material Mounting Wiring Dimensions Weight Protection class Increased IP (option)

aluminum free exposed terminals ø25x60 mm 30 g IP20 -

aluminum on wall hidden terminals 46x80x32 mm 120 g IP20 IP65

Not available for variant '100'! With increased protection

Ordering code

PHA - G6 - #1

Code Feature or option G6 #1 (3)

Operating temperature Operating humidity Storage temperature Storage humidity

Variant

100 - bipolar, 150 - unipolar

Input Increased protection

Code values DN - pH, DO - ORP

(3)

X - none, P - IP65 protection

ONLY for variant '150'

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

COMECO reserves the right of changing specifications without prior notice!

(1)

Operating conditions

Design and materials

Output signal (at 25 °C): - pH - ORP Output asymmetry Output impedance

(2)

'100' '150' < ± 0.01% from span < ± 0.05% from span 2 μV / °C 3 μV/ °C

electrochemical control equipment

pH/ORP Preamplifier PHA ♦ ♦ ♦ ♦ ♦ ♦ ♦

Technical specifications Input

Accuracy

Input range: - pH - ORP Temperature compensation input Input impedance Input capacitance

Error Temperature drift

Output

0...14 pH -2000...+2000 mV external Pt100, 0...100 °C > 1013 Ω 0.5 pF

(1)

'100'

'150'

+410...-410 mV -2000...+2000 mV ± 1 mV 1 kΩ

+2910...1090 mV 500...+4500 mV 1 kΩ

± 5...± 8 VDC ± 1% max. 0.1 mA

5...9 VDC ± 5% max. 2 mA

Power supply Supply voltage Admissible variations Consumption

0...60 °C 10...85 %RH -10...70 °C 0...95 %RH

0...70 °C 0...95 %RH (2) -10...70 °C 0...95 %RH

Case material Mounting Wiring Dimensions Weight Protection class Increased IP (option)

aluminum free exposed terminals ø25x60 mm 30 g IP20 -

aluminum on wall hidden terminals 46x80x32 mm 120 g IP20 IP65

Not available for variant '100'! With increased protection

Ordering code

PHA - G6 - #1

Code Feature or option G6 #1 (3)

Operating temperature Operating humidity Storage temperature Storage humidity

Variant

100 - bipolar, 150 - unipolar

Input Increased protection

Code values DN - pH, DO - ORP

(3)

X - none, P - IP65 protection

ONLY for variant '150'

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

COMECO reserves the right of changing specifications without prior notice!

(1)

Operating conditions

Design and materials

Output signal (at 25 °C): - pH - ORP Output asymmetry Output impedance

(2)

'100' '150' < ± 0.01% from span < ± 0.05% from span 2 μV / °C 3 μV/ °C

electrochemical control equipment pH/ORP Transmitter PHT ♦ ♦ ♦ ♦ ♦

Low cost 4 design variants 13 High input impedance – over 10 Ω Standard current or voltage output signal Automatic temperature compensation

The PHT transmitter converts the high impedance voltage output of pH or REDOX (ORP) probes into standard current or voltage signal that can be safely sent over longer distances. The transmitter provides the necessary for the normal pH/ORP probe's operation high input impedance as well as temperature compensation of pH measurement through a Pt100 or Pt1000 temperature sensor connected to the second transmitter input. Four variants are available differing by power supply, output signal, type of mounting, and protection class. The PHT transmitter is applicable in all cases in which there is a need for measuring pH or ORP and the measurement signal has to be sent over relatively long distance from the point of measurement.

Technical specifications Inputs

Accuracy

pH/ORP input

Measurement error Temperature drift

0...14 pH, 2...12 pH, -1...+1 V, -2...+2 V > 1013 Ω 0.5 pF external Pt100 or Pt1000, 0...100 °C

Input impedance Input capacitance Temperature compensation input

Variant

< ± 0.2% from span 0.005% from span for 1 °C

Operating conditions Ambient temperature Ambient humidity Storage temperature Storage humidity

0...60 °C 10...85 %RH -10...70 °C 0...95 %RH

100

2-wire 4…20 mA

0(4)…20 mA, 0…2 V, or on request

8…30 VDC (1)

230 VAC

IP20

IP44 (except BNC connector)

IP65 (except BNC connector)

IP56 (except BNC connector)

Output Power supply Protection

plastic

aluminum

plastic

ø43x30 mm

90x90x40 mm

46x80x32 mm

108x108x60 mm

Housing Dimensions

30 g

120 g

150 g

280 g

in head type "B" (2)

on wall (2) hidden screw terminals or BNC connector

on wall hidden screw terminals or BNC connector

Weight Mounting Probe connection (1) (2)

exposed screw terminals

12…32 VDC with ORP input May be mounted on rail by a special snap-on accessory, which is ordered separately (see 'Accessories')

Ordering code

PHT - G6'6"G6'6".G11'11".G12

Code Feature or option

10 - tablet, 30 - in IP44 plastic box, 50 - with IP65 metal enclosure, 100 - for mains power supply

G6'6"

Input

G11'

Output signal (3)

G11"

Transmission range

G12

Code values

Variant

Probe connection

pH/ORP

DN - pH, DO - ORP

temperature

BD - Pt100, BG - Pt1000 E - 0…20 mA, F - 4…20 mA, H - 0…2 V, Z - other (specify!)

(4)

(RANGE) (see table above) X - screw terminals, B - BNC connector

(3)

Applicable for the selected variant (4) Do not code for variant '10'

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

COMECO reserves the right of changing specifications without prior notice!

Specifications

electrochemical control equipment Conductivity Transmitter / Controller PHC20 ♦ ♦ ♦ ♦ ♦ ♦ ♦

DIN-rail mounting Operates with 2-electrode contacting cells 0.1...100000 µS measurement range Relay alarm / control output Analog retransmission output Pt1000 temperature compensation Fully programmable

PHC20 is a reliable conductivity transmitter, enclosed in a small housing for DIN-rail mounting, especially designed for clear, industrial, and sea water applications. It is compatible with COMECO's conductivity probes series CSK as well as other 2-electrode contacting conductivity cells within conductance range from 0.1 µS to 100 mS, and has an additional Pt1000 input for automatic temperature compensation. The transmitter provides linear current or voltage output and can also be equipped with a relay alarm/control output. All device parameters (preset conductance ranges, analog output range and direction, relay set point, hysteresis, and direction, temperature compensation parameters, etc.) are user-programmable via the RS232 interface and supplied free configuration software. Thanks to its wide measurement range, flexibility, programmability, and reliability, the PHC20 transmitter is very suitable for water treatment and processing applications in the food, pharmaceutical, and many other industries.

Technical specifications Input

Interface

Input type Measurement range Selectable ranges Temperature input Temperature compensation

2-electrode contacting cell 0.1 µS to 100 mS 0.1...10 µS, 10...1000 µS, 1...100 mS Pt1000 0.0...10.0 %/°C, selectable TDS

Accuracy Total measurement error Temperature drift

± 2% from span (incl. non-linearity) 0.06% from span for 1 °C

Analog output 0(4)...20 mA, 0...10 V, reversible 0.025% max. 750 Ω at 20 mA max. 2 kΩ at 10 V 1500 VAC for 1 min

Relay output MOS gate Output function Set point Isolation from input

Power supply 24 VDC ± 10% 4 Vp-p at 50 Hz max. 60 mA 1500 VAC for 1 min

Supply voltage Admissible variations Consumption Isolation from input

0.1A/60V, optically isolated ON/OFF, alarms configurable via interface 1500 VAC for 1 min

Ambient temperature Operating humidity Storage temperature

-10...65 °C 0...85 %RH, non-condensing -20...85 °C

Design and materials Case material Mounting Wiring Dimensions Weight Protection class

plastic on 35 mm DIN rail screw terminals 23x90x58 mm max. 100 g IP20

Ordered separately (see 'Accessories')

PHC20 - G5.G11

Code Feature or option

Code values

Relay output

X - none (2), M - isolated MOS gate, Z - other (specify!)

G11

Analog output

X - none (2), E - 0…20 mA, F - 4…20 mA, K - 0…10 V, Z - other (specify!)

At least one output must be ordered!

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

COMECO reserves the right of changing specifications without prior notice!

Ordering code

(2)

RS232, requiring special cable (1) free K2, K2U, K12U

Operating conditions

Output signal Resolution Current load Voltage load Isolation from input

(1)

Interface type Configuration software Interface cable type (1)

electrochemical control equipment Carbon-Dioxide Transmitter PHG ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦

Low cost Dual NDIR sensor built-in For HVAC and food processing applications Good accuracy, sensitivity and selectivity Low humidity and temperature dependence Duct mounting variant Local indicator available RS232 interface option

PHG transmitter measures CO2 concentration in in-door atmospheres and converts it into standard current or voltage signal. PHG model uses dual nondispersive infrared (NDIR) carbon-dioxide sensor providing improved accuracy and sensitivity as well as low temperature and humidity dependence. The transmitter can be equipped with local 4-digit LED display and RS232 serial interface. PHG mounting variants include free or duct installation with top or bottom mounted connector. PHG application area includes indoor air control, ventilation, air-conditioning, mushroom control, etc.

Technical specifications Input

Local indicator

Input type Measurement range

Non-dispersive Infrared CO2 cell 0...3000/5000/10000 ppm

Accuracy (1)

Measurement error Temperature dependence Warm-up time Response time (0…80%)

± 2 ppm (0…3000 ppm) at 10…50 °C 10 ppm for 1 °C max. 90 s (at 25 °C) max. 30 s (w/o sintered filter)

Output 0(4)...20 mA 2s 350 Ω at 20 mA 35 ± 2 mA

Output signal Output update Minimum output load Maximum output load Over-scale limit

0…10 V 2s 1 MΩ 17 ± 2 V

Interface Interface type Function Protocol

RS232, 9600 bps CO2 data transmission ASCII, free

Power supply Supply voltage Admissible variations Consumption

15...32 VDC 1 Vp-p at 50 Hz max. 90 mA (150 mA w/ indicator)

Digital display Display resolution Display refresh Accuracy Temperature drift

4 LED indicators, 14 mm 1 ppm 1s 0.2% from span 0.01% from span for 1 °C

Operating conditions Operating temperature Operating humidity Storage temperature

0...50 °C 0...85 %RH, non-condensing -10...60 °C

Design and materials Case material Inlet material Housing dimensions (no connector) Wiring Sensor protection Sintered filter (option) Protection class Mounting Process connection Gas inlet length Weight

ABS/PC plastic POM plastic 80x80x70 mm 4-pin М12 connector (2) plastic cap with polyester filter stainless steel, 75 µm IP65 (excluding gas inlet) free (3) duct (4) none movable flange 130 mm 30 mm max. 250 g max. 350 g

(1)

Including nonlinearity error Straight or angles female part included Radial and axial mounting accessories can be ordered separately (see 'Accessories') (4) Small POM flange DN16.5. (2)

(3)

Ordering code

PHG - G0.G6.G9.G11.G15 - #1.#2

Code Feature or option

Code values free mounting

B - bottom connector, T - top connector

duct mounting

DB - bottom mounted connector, DT - top mounted connector

Case

Input range

03 - 0…3000 ppm, 05 - 0…5000 ppm, 10 - 0…10000 ppm

Serial interface

X - none, A - RS232

G11

Output signal

E - 0…20 mA, F - 4…20 mA, K - 0…10 V, Z - other (specify!)

G15

Connector

C1A - angled M12 connector, C1S - straight M12 connector

Sintered filter

X - none, S - sintered filter mounted

Local indicator

X - none, A - local indicator mounted * contact COMECO

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA, tel: +359 32 646524, fax: +359 32 634089, e-mail: export@comeco.org

electrochemical control equipment Dissolved-Oxygen Transmitter PHO2 ♦ ♦ ♦ ♦ ♦ ♦ ♦

Input signal from SENSOREX, INGOLD, or compatible probes Temperature compensation input Built-in source for probe polarization voltage Rechargeable battery for probe polarization voltage Standard current or voltage output signal Isolated current output available Polarization-control front-panel switch

PHO2 is an electronic transmitter of dissolved-oxygen measurements. It transforms the signal from a standard INGOLD® or SENSOREX® probe for dissolved O2 or a compatible one, provides the polarization voltage necessary for the INGOLD probe operation, and performs measurement temperature compensation. A built-in rechargeable battery maintains INGOLD probe polarization even in absence of power supply, while a front-panel switch enables turning the polarization voltage off. The PHO2 transducer provides a standard voltage or current output signal that allows connection of any standard control, data logging, or indication device, with its field of application including the biotechnological, chemical, food, etc. industries as well as research.

Technical specifications Input Input signal Dissolved O2 input range Temperature compensation input Polarization voltage

'A' 0...50 mV 0% (pure N2) ... 100% (normal air) internal, 0...50 °C -

'B' 0...67 nA 0% (pure N2) ... 100% (normal air) external NTC 22 kΩ, 0...70 °C 675 mV DC

Accuracy < ± 1% from span < ± 1% from span 0.01% from span for 1 °C < 30 s (at change 0…95%) < ± 0.1 mV

Measurement error Repeatability Temperature drift Response time Polarization voltage (1)

Output Transmission range 0...100%, 0...200%, or 0...300% Output signal 0...20 mA 0…2 V 4...20 mA Input / output isolation (option) 1500 VAC for 1 min none none Minimum output load - 20 kΩ Maximum output load 350 Ω at 20 mA 350 Ω at 20 mA -

Mains supply voltage Isolated low voltage Consumption Polarization rechargeable battery (1) Rechargeable-battery service life (1)

230 VAC or 115 VAC 12…24 V or 24 VAC max. 2 VA 3.6 VDC min. 3 years

Operating conditions Ambient temperature Ambient humidity

0...55 °C 10...85 %RH

Design and materials Case material Mounting Wiring Dimensions Mounting depth Weight Protection, front/terminals Increased front IP (option)

plastic in 90x42 mm panel cut-out plug-in terminals 96x48(front)x107 mm 98 mm max. 400 g IP54 / IP20 IP65

With INGOLD® probes only!

Ordering code

PHO2 - G1.G6.G11'11" - #1.#2

Code Feature or option

Code values

Power supply

A - 230 VAC, B - 115 VAC, Q - 12…24 V, isolated (2), R - 24 VAC

Input

A - from SENSOREX® probe, B - from INGOLD® probe, Z - from other probe (specify probe output!)

G11'

Output signal

E - 0…20 mA, F - 4…20 mA, H - 0…2 V, Z - other (specify!)

G11"

Transmission range

(RANGE) (see table above)

Input / output isolation

X - none, I - isolated output (3)

Increased front protection

X - none, P - IP65 front protection

(2)

Ask for availability! (3) Available only for 4...20 mA output! Contact COMECO!

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

COMECO reserves the right of changing specifications without prior notice!

(1)

Power supply

transmitters Analog Signal Isolator TRIL ♦ ♦ ♦ ♦ ♦ ♦

Low cost Passive and active variants 4…20 to 4…20 mA conversion 3750 VAC isolation level Increased input protection Mounting on DIN rail or in IP65 protection box

COMECO's signal isolator TRIL is a compact 2-wire current-to-current transmitter providing optical isolation of 3750 VAC between the input and output current loops. TRIL is available in 2 variants: - passive: an entirely passive device, which does not generate any supply voltages and does not need any additional supply to operate; the input part is powered by the input current loop (4…20 mA), and the output part is powered by the output current loop; - active: uses the energy of the output loop power supply (3-wire connection) to generate an isolated supply voltage for the input loop; provides an increased input over-voltage and over-current protection. TRIL is designed for mounting on a 35 mm DIN rail according to EN 50022, but it can be also enclosed in an IP65 protection box for wall mounting.

Technical specifications Input Input current Operating range Maximum admissible current Loop supply voltage Surge-voltage protection Over-voltage protection Over-current protection

Output Output current Operating range Over-scale limit Loop supply voltage Consumption Maximum line load Output signal at input failure Over-voltage protection Input / output isolation (1) (2) (3)

'0' '1' 4...20 mA 4...20 mA 3.5...21 mA 3.5...21 mA 50 mA 50 mA 10...30 VDC 4...36 VDC (1) 6.8 V (1) 6.8 V (1) 39 V , 90 V (2) none 40 mA none '0' '1' 4...20 mA 4...20 mA 3...22 mA 3...22 mA 32 mA 32 mA 8...32 VDC, 2-wire 24 VDC ± 10%, 3-wire max. 2 W 620 Ω at 24V/20mA 620 Ω at 24V/20mA < 2 mA < 2 mA 39 V (1) 39 V (1) 3750 VAC for 1 min 3750 VAC for 1 min

Accuracy Total measurement error Temperature drift Loop supply influence

0.35% from span 0.03% from span for 1 °C negligible

Operating conditions Ambient temperature Ambient humidity Storage temperature

-20...70 °C 0...95 %RH, non-condensing -40...85 °C

Design and materials Case material Wiring Mounting Dimensions Weight Protection class

on rail 18x90x58 mm 50 g IP20

plastic screw terminals in box (3) 80x80x60 mm 120 g IP65

Surge Zener diode Gas-discharge arrester May be mounted on rail by a special snap-on accessory, which is ordered separately (see 'Accessories').

Ordering code

TRIL - G12

Code Feature or option

0 - passive, 1 - active

Mounting

C - on DIN rail, D - in box IP65 (box included) (3)

COMECO reserves the right of changing specifications without prior notice!

G12

Code values

Variant

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

transmitters Analog Signal Isolator TRIL ♦ ♦ ♦ ♦ ♦ ♦

Low cost Passive and active variants 4…20 to 4…20 mA conversion 3750 VAC isolation level Increased input protection Mounting on DIN rail or in IP65 protection box

Technical specifications Input Input current Operating range Maximum admissible current Loop supply voltage Surge-voltage protection Over-voltage protection Over-current protection

Output Output current Operating range Over-scale limit Loop supply voltage Consumption Maximum line load Output signal at input failure Over-voltage protection Input / output isolation (1) (2) (3)

Accuracy Total measurement error Temperature drift Loop supply influence

0.35% from span 0.03% from span for 1 °C negligible

Operating conditions Ambient temperature Ambient humidity Storage temperature

-20...70 °C 0...95 %RH, non-condensing -40...85 °C

Design and materials Case material Wiring Mounting Dimensions Weight Protection class

on rail 18x90x58 mm 50 g IP20

plastic screw terminals in box (3) 80x80x60 mm 120 g IP65

Surge Zener diode Gas-discharge arrester May be mounted on rail by a special snap-on accessory, which is ordered separately (see 'Accessories').

Ordering code

TRIL - G12

Code Feature or option

0 - passive, 1 - active

Mounting

C - on DIN rail, D - in box IP65 (box included) (3)

COMECO reserves the right of changing specifications without prior notice!

G12

Code values

Variant

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

transmitters Intelligent Signal Isolator TRI ♦ ♦ ♦ ♦ ♦

Input and output powered by the current loops 4…20 to 4…20 mA or 4…20 to 20…4 mA selectable conversion Up to 4000 VAC isolation level 7 selectable thermocouple linearization blocks Mounting on DIN rail or in IP65 protection box

COMECO's signal isolator TRI is a compact 2-wire current-to-current transmitter providing optical isolation between the input and output current loops. The isolation level is normally 2500 VAC, but can be increased optionally to 4000 VAC. The TRI current isolator is an entirely passive device – it does not generate any supply voltages and does not need any additional supply for operating. The input part is powered by the input current loop (4…20 mA) and the output part is powered by the output current loop. Thanks to the use of high sophisticated electronics for its manufacturing, the TRI isolator offers some special features that can be activated by the user via internal programming jumpers: - direct (4…20 to 4…20 mA) or reversed (4…20 to 20…4 mA) conversion; - "Low" (3 mA) or "High" (22 mA) output status at input failure; - thermocouple non-linear conversions providing temperature linear output. TRI is designed for mounting on a 35 mm DIN rail according to EN50022, but it can be also enclosed in an IP65 protection box for wall mounting.

Technical specifications Input

Isolation

Input current Operating range Maximum admissible current Loop supply voltage Input voltage drop

4...20 mA 3.5...21 mA 50 mA 3...36 VDC less than 2.6 V

Output 4...20 mA or 20...4 mA 3...22 mA 32 mA 8...32 VDC 620 Ω at 24V/20mA 3 mA or 22 mA, selectable

Output current Operating range Over-scale limit Loop supply voltage Maximum line load Output signal at input failure (1)

Conversion Linear conversion direct Linear conversion reversed Non-linear conversions (1) (2)

(selectable) input 4 mA → output 4 mA input 20 mA → output 4 mA 7 selectable thermocouple ranges: 3 "J" and 4 "K"

Input / output isolation Increased isolation (option)

2500 VAC for 1 min 4000 VAC

Accuracy Total measurement error Temperature drift Loop supply influence

0.1% from span 0.01% from span for 1 °C negligible

Operating conditions Ambient temperature Ambient humidity Storage temperature

-20...70 °C 0...95 %RH, non-condensing -35...85 °C

Design and materials Case material Wiring Mounting Dimensions [mm] Weight Protection class

on rail 18x75x60 50 g IP20

plastic screw terminals in box (2) 80x80x60 120 g IP65

Outside the input operating range May be mounted on rail by a special snap-on accessory, which is ordered separately (see 'Accessories').

Ordering code

TRI - G12 - #1

Code Feature or option

Code values

Mounting

C - on DIN rail, D - in box IP65 (box included) (2)

Increased isolation level

X - none (standard isolation rate), HI - 4000 VAC

COMECO reserves the right of changing specifications without prior notice!

G12

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

transmitters Universal Signal Isolator TRIM ♦ ♦ ♦ ♦ ♦ ♦ ♦

Input / output / supply triple isolation Accepts mA, mV, V, or Ω linear signals Positive and negative mA or V output Built-in digital filter Direct and reverse conversion Full digital technology – no analog adjustments DIN-rail case and 11-pin box for rail mounting

COMECO's signal isolator TRIM is an active triple-isolated transmitter with separate isolated power supply with 1000 VAC isolation level. The input part is internally powered and generates 24 VDC excitation voltage for external devices connected to TRIM input (current loops, transmitters, etc.). The input may accept various mA, mV, V (unipolar and bipolar) as well as resistive linear signals. The output part is internally energized and generates standard or custom specified linear current or voltage (positive or negative) signals. Thanks to the use of high sophisticated electronics for its manufacturing, the TRIM isolator offers some special features that can be activated by the user via internal programming jumpers: - direct or reversed conversion; - upscale or downscale output status at input failure; - custom specified non-linear conversions. TRIM is available in a case for mounting on a 35 mm DIN rail according to EN50022 and in a convenient 11-pin box for socket mounting.

Technical specifications Input

Accuracy

Linear current Linear voltage Linear resistive Custom linear (option) Current-input impedance Voltage-input impedance Input isolation

0...5 mA, 0(4)...20 mA 0...50 mV, 0...100 mV, 0...1 V, -1...1 V, 0...2 V, 0...5 V, 0...10 V, -10...10 V 0...1 kΩ min. -10...max. 10 V (1), 0...max. 100 mA (1), 0...100 Ω...100 kΩ (1) max. 10 Ω min. 1 GΩ (1 MΩ for range span > 1.5 V) > 1000 VAC for 1 min

Output Linear current Liner voltage Custom linear (option) Current-output load Voltage-output load Direct or reverse conversion Output signal at input failure Output isolation Excitation voltage (2) (3)

Power supply 12…24 V max. 100 mA > 1000 VAC for 1 min

Supply voltage Consumption Isolation

Operating conditions Ambient temperature Ambient humidity

Design and materials Dimensions [mm] Mounting Maximum weight [g] Protection class Case material Wiring

-20...70 °C 0...95 %RH, non-condensing 'R1'

'R2'

23x90x58 35x78x91 in socket or on rail on rail 180 80 IP20 IP20 plastic plastic screw terminals socket UNDECAL (3)

On request. Specify range additionally! Minimum 50 kΩ for negative output voltage ranges! Ordered separately (see 'Accessories').

Ordering code

TRIM - G0.G6.G11

Code Feature or option

Code values

Case

R1 - for rail mounting, R2 - 11-pin box

Input signal

A - 0…5 mA, B - 0…20 mA, C - 4…20 mA, F - 0…50 mV, G - 0…100 mV, H - 0…1 V, H1 - -1…1 V, I - 0…2 V, J - 0…5 V, K - 0…10 V, K1 - -10…10 V, L - resistance, Z - other

G11

Output signal

B - 0…5 mA, C - 1…5 mA, D - 2…10 mA, E - 0…20 mA, F - 4…20 mA, G - 0…1 V, H - 0…2 V, I - 0…5 V, J - 1…5 V, K - 0…10 V, L - 2…10 V, Z - other

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

COMECO reserves the right of changing specifications without prior notice!

(1)

0(1)...5 mA, 2...10 mA, 0(4)...20 mA 0...1 V, 0...2 V, 0(1)...5 V, 0(2)...10 V on request (1) max. 620 Ω min. 1 kΩ (2) selectable upscale or downscale, selectable > 1000 VAC for 1 min 24 VDC, max. 30 mA

0.1% from span 0.01% from span for 1 °C negligible

Measurement error Temperature drift Power supply influence

transmitters AC/DC Current Transmitter TRT ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦

Low cost 100% 2-wire AC/DC transmission Case for mounting inside current transformers available Reliable and accurate conversion High EMS suppression Input isolation option ZERO and SPAN adjustment In-head and DIN-rail versions

The current-to-current transmitter TRT is designed to convert alternative current signal coming from current transformers into a standard 2-wire current signal, which is more suitable for transmitting. Together with a current transformer, the TRT unit forms an AC/DC current converter suitable to measure big AC currents up to more than 1000 A. The 4...20 mA output can be used for measuring, regulation, and registration in special control systems. The TRT transmitter is based on modern integrated circuits and is a fixed-range transmitter. Its input ranges cover most popular current transformer output signals (0...1 A, 0...5 A) and customer specified inputs as well. TRT is available in a casing for mounting inside a current transformer, in 2 casings for DIN-rail mounting as well as mounted into an IP65 protection box, as the latter 3 versions can be equipped with an optional input isolation. TRT is an easy-to-use, low-cost, and EMSprotected device. Its application area includes power stations, electrical equipment, and electricity production and distribution. This transmitter can also be used as sensor transducer in various industrial control systems and everywhere, where AC to DC current conversion is desirable.

Technical specifications Input

Power supply

Input signal Frequency Input range Other input ranges Input isolation (option) (1)

alternative current 50/60 Hz 0…1 A or 0…5 A 0…max. 10 A internal current transformer

Output Output signal Current limits ZERO and SPAN adjustment Maximum line load

4...20 mA, 2-wire Low = 3 mA, High = 28 mA ± 10%, via trimpots 800 Ω at 24V/20mA

Accuracy Measurement error at 25 °C Non-linearity Temperature drift Supply voltage variation influence

0.5% from span 0.5% from span (up to 1.0% w/ input isolation) 0.1% from span for 1 °C 0.02% from span for 1 V

Mains supply voltage (2) Isolated low voltage (2) Non-isolated low voltage Admissible variations

230 VAC or 115 VAC 12...24 V 8...32 VDC 10% p-p at 50 Hz

Operating conditions Ambient temperature Ambient humidity: - mounted in a transformer - mounted on a rail - mounted in a box

-20...70 °C 0...80 %RH, non-condensing 0...95 %RH, non-condensing 0...95 %RH

Design and materials Mounting Dimensions [mm] Weight Protection, case/terminals Case material Wiring

free in box (3) on rail in socket (4) 43x33x16 80x80x60 35x110x58 35x78x91 110 g 180 g 20 g 90 g IP65 IP20 IP40/20 IP20 plastic plastic plastic plastic screw socket screw plug-in terminals terminals terminals UNDECAL (5)

(1)

Not available for the version for free mounting (G12 = "B")! Only for the version for mounting in socket May be mounted on rail by a special snap-on accessory, which is ordered separately (see 'Accessories'). (4) May be also mounted on a DIN rail (5) Ordered separately (see 'Accessories') (2)

Ordering code

TRT - G1.G6.G12 - #1

Code Feature or option

(6)

Code values

Power supply

D - 8...32 VDC, non-isolated, A - 230 VAC (2), B - 115 VAC (2), Q - 12…24 V, isolated (2)

Input

EQ - 0…1 AAC, ER - 0…5 AAC, EZ - other (6)

G12

Mounting

B - free (bare module), C1 - on DIN rail, C2 - in socket, D - in box IP65 (box included) (3)

Input isolation

X - none, I - input isolation (1)

Specify upper current limit within the range given in the 'Input' table section above.

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,

COMECO reserves the right of changing specifications without prior notice!

(3)

transmitters Analog Load-Cell Transmitter TRW ♦ ♦ ♦ ♦ ♦ ♦

Low cost and small size 10 V excitation voltage 1 mV/V minimum input range Minimum 120 Ω load cell resistance 3-wire current or voltage output High protection class – IP67

With its IP67 cast aluminum enclosure, the TRW analog load-cell transmitter has been specially designed to be used in harsh industrial environments. This model can power a single 120...350 Ω load cell with 10 V bridge excitation voltage. TRW accepts 1, 2, or 3 mV/V input signal and generates a standard linear output signal that can be safely sent over long distances to remote indicators, data loggers, or controllers. ZERO and SPAN adjustments can be performed by the means of built-in potentiometers. TRW is low-priced and can withstand considerable electromagnetic disturbances. It can be a preferable low-cost solution for general-purpose process weighting as well as tension measurement applications.

Technical specifications Input

Accuracy single load cell 10 GΩ 120...350 Ω 1, 2, or 3 mV/V 10 VDC ± 0.05% 10, 20, or 30 mV min. ± 10% low-pass, fixed (≈ 10 Hz)

Input type Input impedance Load cell resistance Input sensitivity Bridge excitation voltage Full-scale input range ZERO and SPAN adjustment Analog filter

Output

0.15% from span 0.01% from span for 1 °C

Power supply Supply voltage Admissible variations

15...35 VDC 10% p-p at 50 Hz

Operating conditions Ambient temperature Ambient humidity

-20...60 °C 0...95 %RH

Design and materials

Output signal Minimum output load Maximum output load Output-error signal (NC) Current limit (1)

Measurement error Temperature drift

4(0)...20 mA 750 Ω at 24V/20 mA open collector, 36V/20mA 24...44 mA

0…10 V 1 MΩ open collector, 36V/20mA max. 42 ± 6 mA

Case material Mounting Wiring Dimensions Weight Protection class

aluminum free (1) screw terminals, 2 PG7 glands 77x82x58 mm (w/o glands) max. 210 g IP67

Radial, axial, and DIN-rail mounting accessories can be ordered separately (see 'Accessories').

Ordering code

TRW - G6.G11

Code Feature or option

Code values

Input

OL1 - 1 mV/V, OL2 - 2 mV/V, OL3 - 3 mV/V

G11

Output signal

E - 0…20 mA, F - 4…20 mA, K - 0…10 V, Z - other (specify!)

COMECO reserves the right of changing specifications without prior notice!

Comeco Inc., P.O.Box 378, Plovdiv 4000, BULGARIA,