Siemens QAA24 User Manual

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Siemens Building Technologies Room temperature sensors QAA24, QAA25, QAA26, QAA27 CM1N1721E
HVAC Products 12.07.2003
Housing front ASA+PC, NCS S 0502-G (white)
Botton section of housing ASA+PC, NCS 2801-Y43R (grey)
Base PC, NCS 2801-Y43R (grey)
Sensor (entirely) silicon-free
with packaging approx. 0,1 kg
Sensing element
1)
LG-Ni 1000 (thin-film element)
Time constant 7 min (depending on air movement and thermal
coupling to the wall)
1) QAA25...27 from serie B on with thin-film element
QAA25 QAA26 QAA27
Setpoint setting range 5...35 °C 5...30 °C ±3 K
Resistance range 95...685 Ω 1000...1195 Ω 1000...1175 Ω
Resistance value at setpoint 0 K
1091 Ω
10 °C 193,9 Ω 1039 Ω
20 °C 390,0 Ω 1118 Ω
25 °C 488,3 Ω 1157 Ω
30 °C 586,7 Ω 1195 Ω
Internal diagram
BM
LG-Ni 1000
1721G01
1721G02
LG-
Ni 1000
RBM
LG-Ni 1000
BMRM
1721G03
B1 Room temperature measuring signal
M Measuring neutral
R Setpoint signal
Dimensions
90
100
°C
32
36
4,2
9,5
56 60
56
60
1721M01
Dimensions in mm
Materials and colors
.
.
.
.
Weight
Sensor
Setpoint setting knob
QAA24
QAA25, QAA26
QAA27
Legend
ã2001 Siemens Building Technologies AG n

Siemens QAA24 Specifications

General

Brand	Siemens
Model	QAA24
Category	Temperature Controller
Language	English