РТ4010 thermal relay

РТ4010 thermal relay with digital display

Purpose:

The thermal relay measures and displays temperature and issues signals to control equipment.

Distinctive features:

The measured temperature is shown on a three-digit display.
An extra digit for displaying negative temperatures.
One or two output relays, depending on the version, with changeover contacts, allowing control signals to be issued at different measured temperatures.
Programmable pickup thresholds on two independent channels.
Pickup can be programmed for falling or rising temperature.
A PWM signal can be output through an optocoupler with an n-p-n or triac output, with the required control characteristic.
Versions for use with various types of temperature sensor:
- platinum, copper and nickel resistance temperature detectors;
- NTC thermistor and PTC posistor temperature sensors;
- E, J, K, N, R, S and T type thermocouples;
- p-n junction temperature sensors.
Versions for two-, three- and four-wire temperature sensor connection.
Password protection against unauthorised reprogramming of the pickup thresholds.
Powered from a DC or AC supply.
Galvanic isolation between the measuring input, the supply input and the output contacts.
Data exchange and control via an RS485 interface using the Modbus protocol.