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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.
| Монтаж | DIN rail, In head, In Ex housing |
|---|---|
| Корпус | 18x90x58 mm, 80x80x60 mm, ø44×19 mm |
| Захранване | (Umax+3)…36 VDC, 12…36 VDC (for T/C input), 8…32 VDC (for RTD / linear input), 8…36 VDC |
| Аналогов вход | 0…1 V DC linear voltage, 0…10 V DC linear voltage, 0…2 V DC linear voltage, 0…20mA DC linear current, 0…5 V DC linear voltage, 0…5mA DC linear current, 4…20mA DC linear current, Other, RTD Cu100 – 1.426, RTD Cu100 – 1.428, RTD Cu50 – 1.426, RTD Cu50 – 1.428, RTD other, RTD Pt100 – 1.385, RTD Pt100 – 1.391, RTD Pt1000 – 1.385, RTD Pt50 – 1.385, RTD Pt50 – 1.391, RTD Pt500, Thermocouple (TC) E, Thermocouple (TC) J, Thermocouple (TC) K, Thermocouple (TC) L, Thermocouple (TC) L – GOST, Thermocouple (TC) T, Thermocouple (TC) U |
| Аналогов изход | 0…1 V, 0…10 V, 0…2 V, 0…20 mA, 0…5 mA, 0…5 V, 2…10 V, 4…20 mA, Other |
| Input |
|
| Pt50…1000; 2- or 3-wire | min. -50…max. 500 °C (1) |
| Cu100; 2- or 3-wire | min. -50…max. 250 °C (1) |
| Cu50; 2- or 3-wire | min. -50…max. 250 °C(1) |
| Other thermoresistive | min. -50…max. 500 °C(1) |
| Thermocouple “E” | min. 0…max. 1000 °C (1) |
| Thermocouple “J” | min. 0…max. 1000 °C (1) |
| Thermocouple “K” | min. 0…max. 1300 °C (1) |
| Thermocouple “L” | min. 0…max. 800 °C(1) |
| Thermocouple “L – GOST” | min. 0…max. 800 °C(1) |
| Thermocouple “T” | min. 0…max. 400 °C (1) |
| Thermocouple “U” | min. 0…max. 600 °C(1) |
| Linear current | min. 0…max. 20 mA(1) |
| Linear voltage | min. 0…max. 10 V (1) |
| Minimum input range width | RTD: 50 °C, T/C: 250 °C |
| ZERO and SPAN adjustment | ± 10% |
| Output | |
| 2-wire current | 4…20 mA |
| 3-wire current | 0…5 mA, 0(4)…20 mA |
| 3-wire voltage | 0…1/ 2/ 5/ 10 V, 1…5 V, 2…10 V |
| RTD linearly proportional to | temperature |
| T/C linearly proportional to | input voltage |
| Current limits | Low: 23 mA |
| Reaction at RTD failure | Low or High, depends on terminal |
| Reaction at T/C failure | High |
| Accuracy | |
| Measurement error | 0.3% from span |
| Non-linearity for RTD input | 0.3% from span |
| Self-heating error | 0.02%/mA at 24 V |
| Temperature drift | 0.02% from span for 1 °C |
| Cold junction compensation | automatic hardware, ± 1 °C |
| Power supply | |
| Supply voltage: | 8…32 VDC ± 10% |
| – for 2-wire output | 8…32 VDC (for RTD / linear input) or 12…36 VDC (for T/C input) |
| – for 3-wire current output | 8…36 VDC |
| – for 3-wire voltage output | (Umax+3)…36 VDC |
| Consumption | up to 2 mA (3-wire output) |
| Admissible variations | 1 Vp-p at 50 Hz |
| Maximum line load | 620 Ω (750 Ω for T/C) at 24V/20mA |
| 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 (2,3,4) | on rail | in box (3) |
| Dimensions [mm] | ø44×19 | 18x90x58 | 80x80x60 |
| Weight | 30 g | 90 g | 170 g |
| Protection class | IP20 | IP20 | IP65 |
(1) Specify lower and upper span ranges when ordering.
(2) Head type “B” or any other with 33 mm distance between centers of the female threaded openings
(3) 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’).
Наименование на проекта: Решения в областта на информационните и комуникационни технологии и киберсигурността в малките и средните предприятия
Краен получател: Комеко АД
Обща стойност: 20 000 лв
Цел на проекта: Допринасяне за ускоряване на прехода към цифровизация на икономиката чрез предоставяне на безвъзмездни средства за внедряване на информационни и комуникационни технологии и решения, осигуряващи повишаване нивото на дигитализация на малките и средните предприятия
Етапи: Създаване на онлайн магазин, създаване на корпоративен уебсайт, изграждане на система за архивиране на информация
