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manufacturer:
Siemens
mpn:
QFM81.2
Product Description
Siemens - QFM81.2 Duct Hygrostat with External Setpoint, 30 - 90% RH
Hygrostats are used for controlling and monitoring relative humidity in facilities under HVAC control. They ensure duct humidity control within the selectable range of 15 to 95% relative humidity. The hygrostats do this by controlling humidification or dehumidification equipment. Duct hygrostats can be used as minimum or maximum limiters in the supply air duct.
Additional Information
Degree of protectionIP30
Digital outputsCO: 1 , Potential-free
Setpoint setting range15…95 % r.h.
Switching differential4 % r.h.
Operating voltageContact Rating: 3A@ 24 Vac/Vdc Max; 100mA Min
Dimensions (W x H x D)73 x 140 x 64 (246) mm
Immersion length130…156 mm
Digital output, switching current5 (3)A
Digital output, switching voltage250 V