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Siemens Switzerland Ltd
User manual RVS61.843 CE1U2355en_02
HVAC Products 8 Technical data 23. November 2007
8.3 Operator and room unit AVS37... / QAA7x… /
QAA55..
For devices without batteries:
Bus power supply
BSB
For battery-powered devices:
Batteries
3 pcs
Type of batteries
1.5 V alkaline size AA (LR06)
Battery life
Approx. 1.5 years
Measuring range
0...50 °C
According to EN 12098:
Range 15...25 °C
Range 0..15 °C or 25...50 °C
Resolution
Within tolerance of 0.8 K
Within tolerance of 1.0 K
1/10 K
AVS37.. / QAA75.. / QAA55..
Max. cable length basic unit – peripheral
device
BSB-W,
2-wire connection, not interchangeable
QAA75.. / QAA55.. 200 m
AVS37.. 3 m
QAA78... BSB-RF
Frequency band 868 MHz
Degree of protection of housing to
EN 60 529
IP20 for QAA7…
IP40 for AVS37… IP20 (when mounted)
Normal pollution
Safety class to EN 60 730
Low-voltage-carrying parts meet the
requirements of safety class III, if correctly
installed
Degree of pollution to EN 60 730
Normal pollution
CE conformity to
EMC directive
- Immunity
- Emissions
Low-voltage directive
– Electrical safety
RF
89/336/EEC
- EN 61000-6-2
- EN 61000-6-3
73/23/EEC
- EN 60730-1, EN 50090-2-2
EN 300 220-1 (25-1000MHz)
For devices without batteries:
Storage to EN 60721-3-1
Class 1K3, temperature -20…65 °C
Transport to EN 60721-3-2
Class 2K3, temperature -25…70 °C
Operation to EN 60721-3-3
Class 3K5, temperature 0...50 °C
(non-condensing)
For battery-powered devices:
Storage to EN 60721-3-1
Class 1K3, temperature -20…30 °C
Transport to EN 60721-3-2 Class 2K3, temperature -25…70 °C
Operation to EN 60721-3-3
Class 3K5, temperature 0...50 °C
(non-condensing)
Without packaging
AVS37.294: 160 g
QAA75.61x: 170 g
QAA78.610: 312 g
QAA55.110: 115 g
Power supply
Room temperature
measurement
(only with
QAA7x...) / QAA55...)
Interfaces
Degree of protection
and safety class
Standards, safety,
EMC, etc.
Climatic conditions
Weight
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