48
Zehnder Eversky
16.3. PT1000 temperature sensors
The temperature sensors are of type PT1000. The location of each temperature sensor is shown in Chapter VII.1 General
composition. The curve below shows the typical resistance of the sensing element as a function of its temperature.
50
45
40
35
30
25
20
15
10
5
0
-5
-10
-15
-20
900
925
950
975
1000
1025
1050
1075
1100
1125
1150
1175
1200
Temperature (°C)
R
esistance (O
hm
s)
T (°C)
R (Ohms)
50
1194
45
1175
40
1155
35
1136
30
1117
29
1113
28
1110
27
1105
26
1101
25
1097
24
1093
23
1090
22
1086
21
1082
20
1078
19
1074
18
1070
17
1066
16
1062
15
1059
14
1055
13
1051
12
1047
11
1043
10
1039
9
1035
8
1031
7
1027
6
1023
5
1019
4
1016
3
1012
2
1008
1
1004
0
1000
-5
980
-10
961
-15
941
-20
922
The sensor can be checked simply with an ohm meter and a reference thermometer. The resistance measured across
the (disconnected) sensor lead must be /- 3% of the resistance value tabulated above for the equivalent
temperature measured by the reference sensor. If necessary, the sensor must be replaced. If the sensor control is good,
but the control displays an incorrect value, the problem may be a faulty connector or an incorrect offset that has been
configured.
