SIEMENS QFM31 Wind Tube Type sensor Manual

Update: 01 October, 2023

QFM31... is a duct sensor for measuring relative humidity (high precision) and temperature. It uses a capacitive humidity measurement principle, has an operating voltage of AC 24 V or DC 13.5.35 V, and a signal output of DC 0.10 V/4...20 mA, for relative humidity and temperature. It is suitable for HVAC applications with high requirements for relative humidity measurement accuracy and response time, and the measurement range covers the entire humidity range of 0...100%.

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MD5 Checksum: A9CBFC14B0537E16819B7737ED987A65

Publication date: 01 January, 2000

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PDF Link: SIEMENS QFM31 Wind Tube Type sensor Manual PDF