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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.
| Монтаж | DIN rail, In box IP65, In head, In Ex housing |
|---|---|
| Корпус | 18x90x58 mm, 80x80x60 mm, ø44×19 mm |
| Аналогов вход | RTD Pt100 – 1.385, Thermocouple (TC) B, Thermocouple (TC) E, Thermocouple (TC) J, Thermocouple (TC) K, Thermocouple (TC) N, Thermocouple (TC) R, Thermocouple (TC) S, Thermocouple (TC) T |
| Аналогов изход | 0…10 V, 0…20 mA, 4…20 mA |
| Интерфейс | RS232 |
| Захранване | 8…36 VDC, 9…36 VDC |
| Input (programmable) | ||
| Pt100 (w=1.385); 3-wire | min. -200…max. 600 °C | |
| Thermocouple “B” | min. 200…max. 1800 °C | |
| Thermocouple “E” | min. -20…max. 600 °C | |
| Thermocouple “J” | min. -20…max. 900 °C | |
| Thermocouple “K” | min. -20…max. 1200 °C | |
| Thermocouple “N” | min. -20…max. 1200 °C | |
| Термодвойка “R” | min. 0…max. 1700 °C | |
| Термодвойка “S” | min. 0…max. 1700 °C | |
| Термодвойка “T” | min. -40…max. 400 °C | |
| Input / output conversion | direct or reverse, programmable | |
| Output | ||
| Option | ‘2’ | ‘3’ |
| Voltage | – | 0…10 V |
| – minimum load | – | 1 MΩ |
| Current | 4…20 mA | 0(4)…20 mA |
| – maximum load | 800 Ω at 24V/20mA | 750 Ω at 24V/20mA |
| Sensor failure reaction | 20,2 mA, programmable | downscale or upscale, programmable |
| Accuracy | ||
| Measurement error | 0.3% from span | |
| Non-linearity | within measurement error | |
| Self-heating error | 0,005%/mA at 24 V | |
| Temperature drift | 0.01% from span for 1 °C | |
| Cold junction compensation | automatic software, ± 0.5 °C | |
| RTD 3-wire line compensation | up to 25 Ω per wire |
|
| Interface | ||
| Interface type | RS232 | |
| Physical connection | requiring special cable (2) | |
| Configuration software | TraCon”, free | |
| Power supply | ||
| Supply voltage | 8…36 VDC | 9…36 VDC (1) |
| Admissible variations | 1 Vp-p at 50 Hz | 1 Vp-p at 50 Hz |
| Operating conditions | ||
| Ambient temperature | -20…70 °C | |
| Ambient humidity | 0…95 %RH, non-condensing | |
| Design and materials | |||
| Case material | plastic | ||
| Wiring | screw terminals | ||
| Mounting | in head (3,4,5) | on rail | in box (4) |
| Interface connector | 4-pin | 3-pin | 4-pin |
| Interface cable type (2) | K1, K11U | K2, K12U | K1, K11U |
| Dimensions [mm] | ø44×19 | 18x90x58 | 80x80x60 |
| Weight | 30 g | 90 g | 170 g |
| Protection class | IP20 | IP20 | IP65 |
(1) 13…36 VDC for output 0…10 V
(2) 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 ‘Accessor
