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12.4 Sensor resistance tables
Resistance values with PTC resistors
Type 5224 Outdoor Temperature Sensors, Type 5264 and Type 5265 Flow and Return Flow
Temperature Sensors, Type 5264 Storage Tank Temperature Sensors
°C –20 –10 0 10 20 25 30 40 50 60 70 80 90 100 110 120
Ω
694 757 825 896 971 1010 1050 1132 1219 1309 1402 1500 1601 1706 1815 1925
Type 5244 Sensor
Switch position , terminals 1 and 2
Resistance values with Pt 1000 resistors
Type 5227-2 Outdoor Temperature Sensor, Type 5277-2 (thermowell required) and
Type 5267-2 (contact sensor) Flow, Return Flow and Storage Tank Temperature Sensors.
Type 5257-1, Type 5257-5 (room panel) Room Temperature Sensors.
°C –35 –30 –25 –20 –15 –10 –5 0 5 10
Ω
862.5 882.2 901.9 921.6 941.2 960.9 980.4 1000.0 1019.5 1039.0
°C 15 20 25 30 35 40 45 50 55 60
Ω
1058.5 1077.9 1097.3 1116.7 1136.1 1155.4 1174.7 1194.0 1213.2 1232.4
°C 65 70 75 80 85 90 95 100 105 110
Ω
1251.6 1270.7 1289.8 1308.9 1328.0 1347.0 1366.0 1385.0 1403.9 1422.9
°C 115 120 125 130 135 140 145 150
Ω
1441.7 1460.6 1479.4 1498.2 1517.0 1535.8 1554.5 1573.1
Resistance values with Pt 100 resistors
Use the resistance values specified in the table for Pt 1000 resistors and divide the values by 10.
Type 5225 Outdoor Temperature Sensor, Types 5204, 5205-46 to -48 Flow and Return Flow
Temperature Sensors, Types 5205-46 to -48 Storage Tank Temperature Sensors, Type 5255
Room Temperature Sensor.
128 EB 5179 EN
Appendix
°C 10 15 20 25 30
Ω
679 699 720 741 762