The AST122N is our Thermocouple Temperature Signal trip amplifier with two trip output set points suitable for SIL 1, 2 & 3 applications
- Input is any 2, 3 or 4 wire resistance temperature sensor. Third wire compensation is standard to overcome lead resistance variation.
- Trip output is a double pole changeover contacts, rated at 250VAC, 2A, 100VA resistive
Storage Temperature: -40°C o +70°C
Operating Ambient: -15°C to +55°C
Relative Humidity 5% to 95% RH