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Materials and colors
Weight
Sensor
Setpoint setting knob
Internal diagram
QAA24
QAA25, QAA26
QAA27
Legend
Dimensions
4/4
Siemens Building Technologies
HVAC Products
Housing front
Botton section of housing
Base
Sensor (entirely)
with packaging
1)
Sensing element
Time constant
1) QAA25...27 from serie B on with thin-film element
Setpoint setting range
Resistance range
Resistance value at setpoint
10 °C
20 °C
25 °C
30 °C
LG-Ni 1000
B
M
LG-
Ni 1000
R
B
M
LG-Ni 1000
R
M
B
M
B1
Room temperature measuring signal
M
Measuring neutral
R
Setpoint signal
°C
90
Dimensions in mm
ã2001 Siemens Building Technologies AG
Room temperature sensors QAA24, QAA25, QAA26, QAA27
ASA+PC, NCS S 0502-G (white)
ASA+PC, NCS 2801-Y43R (grey)
PC, NCS 2801-Y43R (grey)
silicon-free
approx. 0,1 kg
LG-Ni 1000 (thin-film element)
7 min (depending on air movement and thermal
coupling to the wall)
QAA25
QAA26
5...35 °C
5...30 °C
95...685 Ω
1000...1195 Ω
193,9 Ω
1039 Ω
390,0 Ω
1118 Ω
488,3 Ω
1157 Ω
586,7 Ω
1195 Ω
32
56
36
60
QAA27
± 3 K
1000...1175 Ω
1091 Ω
0 K
4,2
n
CM1N1721E
12.07.2003
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