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HYGRASREG® AHT-30Electronic HYGRASREG® AHT-30 room hygrostat and/or room thermostat with one continuous and two switching outputs, adjustable switching thresholds, with/without optional 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 measuring transducer serves to control and monitor relative humidity (humidifying and dehumidifying) 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. It has been designed for precise humidity/temperature measurement. The RHT-30 uses 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 ± 0.4 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...+75 °C, non-precipitating Protective tube stainless steel V2A (1.4301), Ø 16 mm, NL = 55 mm 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. |