2. Sensor resistance characteristics table
u Resistance value allowance of sensor is ±5%.
u In measuring resistance value allowance of sensor, perform measuring after leaving the sensor for more than 3 minutes
at the measuring temperature (delay is required due to sense speed relation relationship).
u Since an analog tester has a large measuring temperature, measuring with a digital tester is required as possible as.
u Resistance of the cold storage sensor 1 and 2 shall be measured with a digital tester after separating CON8 of the PWB
ASSY and the MAIN part.
u Resistance of the freezing sensor shall be measured with a digital tester after separating CON7 of the PWB ASSY and
the MAIN part.
EXPLATION FOR MICOM CIRCUIT
- 26 -
Measuring Temperature (°C) Freezing Sensor
Cold storage sensor 1, 2.
Frost removal sensor, Outside sensor
-20 °C 22.3 kΩ 77 kΩ
-15 °C 16.9 kΩ 60 kΩ
-15 °C 13.0 kΩ 47.3 kΩ
-5 °C 10.1 kΩ 38.4 kΩ
0 °C 7.8 kΩ 30 kΩ
+5 °C 6.2 kΩ 24.1 kΩ
+10 °C 4.9 kΩ 19.5 kΩ
+15 °C 3.9 kΩ 15.9 kΩ
+20 °C 3.1 kΩ 13 kΩ
+25 °C 2.5 kΩ 11 kΩ
+30 °C 2.0 kΩ 8.9 kΩ
+40 °C 1.4 kΩ 6.2 kΩ
+50 °C 0.8 kΩ 4.3 kΩ
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