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12.3 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 Room Sensor
Switch position , terminals 1 and 2
Resistance values with Pt 100 resistors
Suitable Pt 100 sensors include
4
Outdoor temperature sensor: Type 5225
4
Flow and return flow temperature sensors: Type 5204, Type 5205-47
4
Storage tank temperature sensor: Type 5205
4
Room temperature sensor: Type 5255
°C
–35 –30 –25 –20 –15 –10 –5 0 5 10
Ω
86.25 88.22 90.19 92.16 94.12 96.09 98.04 100.00 101.95 103.90
°C
15 20 25 30 35 40 45 50 55 60
Ω
105.85 107.79 109.73 111.67 113.61 115.54 117.74 119.40 121.32 123.24
°C
65 70 75 80 85 90 95 100 105 110
Ω
125.16 127.07 128.98 130.89 132.80 134.70 136.6. 138.50 140.39 142.29
°C
115 120 125 130 135 140 145 150
Ω
144.17 146.06 147.94 149.82 151.70 153.58 155.45 157.31
Resistance values with Pt 1000 resistors
Use the resistance valueslisted in the table for Pt100 resistors and multiply themby 10. Suitable
Pt 1000 sensors include:
4
Outdoor temperature sensor: Type 5227-2
4
Flow and return flow temperature sensors: Types 5207, 5277-2 (thermowell required) and
5267-2
4
Storage tank temperature sensor: Types 5207, 5277-2 (thermowell required)
4
Room temperature sensor: Type 5257-1, room temperature sensor with remote control:
Type 5257-5
98 EB 5476 EN
Appendix
°C 10 15 20 25 30
Ω
679 699 720 741 762