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Temperature Controllers And Regulators

Orion Italia

  • Programmable temperature regulator / digital

TR-42

Article: 00131680

Programmable temperature regulator / digital

The Temperature Relay TR-42 has been designed for continuous monitoring of the temperature, the cooling fan's control and overheat protection for resin or air insulated three-phase transformers.

Thermal detectors PT100 DIN 43760, three of them located inside the transformer coils and the fourth at the core, detect the temperature.

The TR-42 relay is microprocessor-based equipment designed to satisfy all control requirements and guarantee high reliability.

The TR-42 perform the following functions:

Measurement:
- Coils and core transformer temperatures, automatically each 5 sec or manually.
- Highest temperature indication and storage.

Signaling and programming:
- 7 segment display and led indication.
- Simplified programming through frontal push buttons.
- Display and non volatile storage of: alarm temperature, trip temperature, fan on, start and stop fan temperature, highest RTD temperature, baud rate of serial transmission, and assigned relay address.

Protection:
Programmable setting from 0° to 220°C, with separate output contact for the following protection:
- Alarm temperature.
- Start and stop fan temperature.
- Overheat transformer disconnection.
- Alarm of TR-42 failure or PT100 disconnection.

Communication:
Remote digital communication to a PC or PLC, via RS422 or RS485, allowing:
- Remote adjustment of protection and relay characteristics.
- Storage of faults and events for further statistical treatment.
- Self-explanatory software that requires no additional programming.

Specifications

  • Type: programmable
  • Display: digital
  • Maximum temperature: Min.: 0 °C (32 °F)

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