Digital microcomputer temperature controller digital temperature controller ETC-9741
3 year ago
ETC 974 is the temperature controller for middle and low temperature ventilated refrigeration system.
Its unique design includes three universal relays for cold storage(compressor, evaporator fan and defroster), internal buzzer
alarm, two probes (cold storage temperature probe and evaporator probe), three output: refrigeration, defrost and fan.
(1)Probe type switch between PTC and NTC;
(2)Evaporator probe could be disabled;
(3)Display switch between integer and decimal;
(4)Display switch between Celsius and Farheit.
2. Technical parameters
1, Temperature measuring range:
NTC:–50...110°C (-58...230°F) NTC(10KΩ/25°C,B value 3435K)
PTC:–55...140°C (-67...284°F) PTC(990Ω/25°C,KTY81-121)
2,Temperature controlling range: -5°C...55°C(23...131°F)
3,Compressor relay output: 8A
4,Defrost relay output: 8A
5,Fan relay output: 8A
6,Digital display: three digits +minus zone + status zone(refrigeration,defrost,fan and alarm)
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