Sensor Characteristics - Buderus LOGANO PLUS GB312 Installation Instructions Manual

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Sensor characteristics

DANGER: Risk of fatal injury from
electric current.
▶ Isolate the heating system from the electrical power
supply before taking any readings.
y
32 50
Fig. 77 Sensor characteristics: high limit temperature, return and supply sensors
[x] Temperature in °F
Resistance in k Ω
[y]
Two identical "dual sensors" fitted in the sensor housing
are used as high limit temperature sensors.
All temperature sensors on the GB312 have the same
sensor characteristic.
Logano plus GB312 – 6 720 647 367 (2012/11)
68 86 104 122
Always measure the temperatures being compared (room, flow, outside
and flue gas temperatures) close to the sensor. The chracteristics
represent average levels and are subject to tolerances. Measure the
resistance at the cable ends.
140 158 176
x
Sensor characteristics
194 212 230 248
7 747 010 720-84.1RS
11
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