Data Sheet for Product

Function
The sensor acquires the room temperature via its sensing element.
The resistance of the sensing element changes as a function of the ambient tempera-
ture. The resistance value is used for further handling by a suitable controller.
Characteristic: Accuracy:
−
1
0
0 10
20 30
40
50
60
140
120
100
80
R
[Ω]
[°C]
1745D01
ϑ
−
10 0 10 20 30 40 50 60
0.8
0.4
0.0
−
0.4
∆ϑ [K]
ϑ
1745D02
[°C]
−
0.8
0.6
0.2
−
0.2
−
0.6
−
10 0 10 20 30 40 50 60
1400
1200
1000
800
R
[Ω
]
[°C]
1745D05
ϑ
−
1
0 0
10
20 30 40
50 60
0.8
0.4
0.0
−
0.4
∆ϑ
[K
]
ϑ
1745D02
[°C]
−
0.8
0.6
0.2
−
0.2
−
0.6
1000
10000
100000
-10
0 10 20
30 40 50
60
[°C]
ϑ
R
[Ω]
1745D07
-1.00
-0.80
-0.60
-0.40
-0.20
0.00
0.20
0.40
0.60
0.80
1.00
-10 0 10 20 30 40
50
60
∆ϑ
[K]
[°C]
ϑ
1745D06
R Resistance in Ohm
ϑ Temperature in degrees Celsius
∆ϑ Temperature differential in Kelvin
Sensing element
Pt 100 (class B)
Pt 1000 (class B)
NTC 10k
Legend
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Siemens Room temperature sensors QAA20… CE1N1745en
Building Technologies 2014-07-30