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THERMASREG® FS-20Electronic THERMASREG® FS-20 frost protection thermostat or frost monitor with switching relay output, continuous temperature and valve output (summation output 0–10 V) and control and cascading output (0–10 V), optionally with connection for a heating element, in an impact resistant plastic housing with quick-locking screws, with display by default and a fully active sensor rod made of copper. The frost monitor is used to monitor air conditioning systems, heat exchangers, heating registers and similar systems, and protects against frost damage and freezing. Limit value underrun is detected at the coldest measuring point of the capillary tube. The sensor rod is active along its entire length. The device uses internal diagnostics to detect capillary breakage, power failure or electric damage to the sensor as errors, and the relay switches to frost automatically. The innovative 2-phase frost protection thermostat enables a simple combination of several devices (cascading) for on-demand, comprehensive frost monitoring. The delivery scope includes a set of MK-05-Kmounting clamps for expert attachment of the sensor rod.
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产品编号 1102-1011/1102-1012
Voltage supply 24 V AC/ DC (± 10 %) Load resistance RL > 50 kOhm Switch-on start-up time < 1 min Response time t90 < 5 s Input 1 x 0 -10 V control input DDC 1 x 0 -10 V ascading input Output 1 x 0 -10 V output temperature (corresponding to 0...+15 °C) 1 x 0 -10 V output valve (frost signal with control voltage and cascading) 1 x potential-free changeover contact (24 V), range of adjustment 0...+15 °C Measuring range 0...+15 °C Accuracy typically ± 1 K (at +10 °C) Ambient temperatures Sensor and capillary tube: –20...+60 °C (capillary tube at a distance of > 20 cm from the housing) Housing: –15...+50 °C Storage/ transport: –30...+70 °C Process connection by mounting clamps MK- 05 - K (included in the scope of delivery) Electrical connection 0.14 - 1.5 mm² via terminal screws Housing plastic, UV-stabilised, material polyamide, 30 % glass-globe reinforced, with quick-locking screws (slotted/ Phillips head - combination), colour traffic white (similar to RAL 9016), housing cover for display is transparent ! Housing dimensions 126 x 90 x 50 mm (Tyr 2) Cable gland M 16 x 1.5, including strain relief, exchangeable, max. inner diameter 10.4 mm Sensor and capillary Copper sensor rod, length of 3 m or 6 m, active along the entire sensor length, min. response length of 25 cm Hysteresis of switching step 2K Permissible air humidity < 95 % RH, non-precipitating air Protection class III (according to EN 60 730) Protection type IP 65 (according to EN 60 529)* Standards CE conformity, electromagnetic compatibility according to EN 61326, according to EMC Directive 2014/ 30/ EU Features display with illumination, three-line, cutout approx. 70 x 40 mm (W x H), for displaying the actual temperature, measuring range overrange/underrange of the set switch point (frost protection temperature), and alarm indicator for "frost" or "error" (capillary breakage, overvoltage/undervoltage) Internal diagnostics Error 1 in case of cable / capillary breakage Error 2 in case of undervoltage / overvoltage (relay automatically switches to frost) |