SIEMENS Wind Tube Type sensor QFM21 Manual

Update: 28 September, 2023

The document introduces Symaro™ duct-type sensor QFM21, which is used to measure relative humidity and temperature. Its features include operating voltage of AC 24 V or DC 13.5-35 V, signal output of DC 0.10 V/4-20 mA for relative humidity and DC 0.10 V/4-20 mA or T1 or LG-Ni 1000 for temperature. The sensor can be used for controlling supply and exhaust air, reference sensors, limit sensors, etc.

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File format: PDF

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MD5 Checksum: 0699AC984D38314273E6C2039DBE4BDC

Publication date: 16 October, 2011

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PDF Link: SIEMENS Wind Tube Type sensor QFM21 Manual PDF