User Manual

CM1N1853E / 10.1999 Siemens Building Technologies
4/4 Landis & Staefa Division
Measuring accuracy at 20 °C
in the range 0...90 % r.h.
±
2 % r.h.
in the range 90...100 % r.h.
±
3 % r.h.
Temperature dependency
in the range
−
10...+50 °C <0,05 % r.h./°C
Reduction of the humidity measuring range
at temp. above 60 °C at sensor head see illustration in margin
Time constant t
90
approx. 20 s
Sensing element Pt1000 Class A
Measuring accuracy in the range 20 °C
±
0,3 K
Time constant t
63
ca. 20 s
MB1B2 B3
G
1853G01
(r.H.) (at 50) (at 35)
M
B1B3
1863G01
GB2
Front view:
Built-in plug
G System potential AC 24 V (safety extra-low voltage SELV)
M System ground, measuring ground
B1 Output, DC 0...10 V measuring signal for relative humidity, 0...100 %
B2 Output, DC 0...10 V measuring signal for temperature, 0...50 °C
B3 Output, DC 0...10 V measuring signal for temperature,
−
35...+35 °C
Humidity sensor
- 40
100
40
[°C]


+ 60 + 80
r. h.
[%]
1863D01E
Temperature sensor
.
.
Connection terminals
Dimensions
3,2
50
68
ø 27
43
15,5
86
32
ø 12
138117
1853M01
Dimensions in mm

1999 Siemens Building Technologies Ltd.
Drillin
g
scheme