数字恒温器

digital Thermostat with Current Protector Product Size:7 x 3.5 x 7.5cm Bore Size:70 x29mm Main Function: Refrigeration Controlling (Refrigeration / heat): temperature showing, temperature controlling (refrigeration/heat mode can be set),compressor start delay protection, temperature sensor error alarm, it can run periodically with the on-off rate and stop which has been set when the temperature sensor is broken. Fan Controlling: 7 fan running modes: fan ahead or delay start, delay stop, temperature controlling start and stop, time controlling start and stop, always on, always off, run or stop when defrosting. Defrost Controlling: 2 defrost modes (electric heat, hot gas), 3 defrost start mode (time alternation, accumulative compressor running time, real time clock), 2 defrost end mode (timing, controlled by both temperature and time), dripping, manual defrost, defrost sensor error alarm, high temperature alarm is forbidden when defrosting. Real Time Clock (RTC): Internal RTC, it is still running when power off, and it supplies an accurate time, used for real time defrost. Current display: display three average current, press key to display A.B.C phase current respectively. Overload protecting: when three phase average current exceed rated current, circuit protects and load opens. Deficient-phase protecting: when testing deficient-phase or three phase current unbalance, circuit protects and load opens. Main Technique Index: Temperature display range: -50 - 150oC (The resolution is 0.1oC) Current display range: 0 - 100A,±10% Current setting range: 0 - 80A Power supply: AC 220V±10% or AC 380V±10% 50Hz (Refer to the wiring diagram) Operating environment: temperature -10oC - 50oC, humidity ≤85%. Relay contact capability: 8A/250VAC (pure resistive load) Temperature sensor: NTC R25=5kΩ, B (25/50) =3470K Executive standard: Q/320585 XYK 01-2004 (NA6839-CTDFAX)