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HYGRASREG® KHT - 30Electronic HYGRASREG® KHT-30 duct hygrostat and/or duct thermostat with one continuous and two switching outputs, adjustable switching thresholds and a display for indicating actual humidity and/or actual temperature (accuracy class ±2.0% r.H.). The setpoints can be allocated to relative humidity and/or temperature. The sensor device serves to control and monitor relative humidity (humidifying and dehumidifying equipment) and/or temperature (heating and cooling systems) e.g. in ventilation and air conditioning ducts, laboratories, production facilities, climate test chambers, indoor swimming pools, greenhouses, etc. The measuring transducer has been designed for exact humidity/temperature measurement. The KHT-30 has a digital, long-term stable sensor as a measuring element. It is used in dust-free, unpolluted, non-aggressive air.
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Voltage supply 24 V AC/ DC (± 20 %) Power consumption < 1.5 VA/ 24 V DC, < 3.5 VA/ 24 V AC Deviation of humidity typical ± 2.0 % (20…80 % RH); at + 25 °C, otherwise ± 3.0 % Temperature deviation typically ± 0.2 K at +25 °C Sensor digital humidity sensor with integrated temperature sensor, low hysteresis, high long-term stability Sensor protection plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable (optional metal sinter filter, Ø 16 mm, L = 32 mm) Operating difference Mode 1: both switch steps are freely adjustable (rel. humidity) Mode 2: 5 % between both switch steps (rel. humidity) Mode 3: both switch steps freely adjustable (temperature) Mode 4: switch step 1 (temperature), switch step 2 (rel. humidity) (adjustable via DiP switches) Setting range 5...95 % r.H. (humidity) Multi-range switching with 4 switchable measuring ranges –35...+35 °C; –35...+75 °C; 0...+50 °C; 0...+80 °C (temperature) (Switch steps 1 and 2 are separately adjustable) Ambient temperature storage –35...+85 °C, operation – 30...+70 °C, non-precipitating Protective tube PLEUROFORM, material polyamide (PA6), with torsion protection, Ø 20 mm, NL = 235 mm (optionally 100 mm), vmax = 30 m/s (air) (option on request in stainless steel V2A (1.4301), Ø 16mm) Electrical connection 0.14 - 1.5 mm² via terminal screws Cable connection cable gland, plastic (M 16 x 1.5; with strain relief, exchangeable, max. inner diameter 10.4 mm) or M12 connector according to DIN EN 61076-2-101 (optional on request) 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 Long-term stability ± 1 % per year Protection class III (according to EN 60 730) Protection type IP 65 (according to EN 60 529) housing only! Standards CE conformity, EMC directive 2014/ 30/ EU Display three-line display with illumination, cutout approx. 70 x 40 mm (W x H), for displaying ACTUAL humidity and/or ACTUAL temperature or for setpoint adjustment Function Humidifying/heating: 1st step: wire contacts 11 - 12. 2. step: wire contacts 21 - 22. Dehumidifying/cooling: 1st step: wire contacts 11 - 13. 2. step: wire contacts 21 - 23. |