User Manual

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Siemens Building Technologies Room temperature sensors QAA1... CM1N1746en
HVAC Products 28.03.2002
Mechanical design
The sensor is designed for wall mounting. It can be fitted to most commercially
available recessed conduit boxes. The cables can be introduced from the rear. The
sensor consists of a plastic housing with a removable snap-on cover. The housing
accommodates a printed circuit board with the sensing element and the connection
terminals. The housing has ventilation slots at the top and at the bottom.
Technical data
Type of sensor
QAA100 QAA160 QAA170
Measuring range refer to “Type summary”
Sensing element
Pt100
(class B)
Pt1000
Measuring tolerance
± 0.3 K at 0 °C
± 1 %
Type of measurement and output
passive
active
DC 0...10 V
active
4...20 mA
Power supply (terminal UB) AC 24 V /
DC 15...24 V
± 10 %
DC 15...24 V
± 10 %
Power consumption max. 12 mA max. 20 mA
Load/dummy load min. 5 kΩ <500 Ω
Perm. ambient temperature −35...+70 °C
Degree of protection IP20 as per EN 60 529
Materials used ABS plastic, anti-static and dirt-resistant
Connections
Mechanical
Electrical
screws
screw terminals, max. 2 x 1.5 mm
2
Colour pure-white, RAL 9003
Weight 0.041 kg 0.044 kg 0.047 kg
Product safety
Automatic electric controls for
household and similar use EN 60 730-1
Electromagnetic compatibility
Immunity
Emissions
EN 60 730-1 (1996)
EN 55 011-B (1998)
CE conformity
Electromagnetic compatibility
Low voltage directive
89/336/EEC
73/23/EEC
General sensor data
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Norms and standards