Sensor resistance characteristics table
u Resistance value allowance of sensor is ±5%.
u When measuring the resistance value of the sensor, allow the temperature of that sensor to stabilize for at least 3 minutes
before measuring. This delay is necessary because of the sense speed relationship.
u Use a digital tester to measure the resistance. An analog tester has too great a margin of error.
u Resistance of the cold storage sensor 1 and 2 should be measured with a digital tester after separating CON8 of the
PWB ASSEMBLY and the MAIN part.
u Resistance of the freezing sensor shall be measured with a digital tester after separating CON7 of the PWB ASSEMBLY
and the MAIN part.
EXPLANATION FOR MICOM CIRCUIT
- 45 -
Measuring Temperature (°C) Freezing Sensor
Cold storage sensor 1&2
Frost removal sensor, Outside sensor
-20 °C (-4 °F) 22.3 kΩ 77 kΩ
-15 °C (5 °F) 16.9 kΩ 60 kΩ
-10 °C (14 °F) 13.0 kΩ 47.3 kΩ
-5 °C (23 °F) 10.1 kΩ 38.4 kΩ
0 °C (32 °F) 7.8 kΩ 30 kΩ
+5 °C (41 °F) 6.2 kΩ 24.1 kΩ
+10 °C (50 °F) 4.9 kΩ 19.5 kΩ
+15 °C (59 °F) 3.9 kΩ 15.9 kΩ
+20 °C (68 °F) 3.1 kΩ 13 kΩ
+25 °C (77 °F) 2.5 kΩ 11 kΩ
+30 °C (86 °F) 2.0 kΩ 8.9 kΩ
+40 °C (104 °F) 1.4 kΩ 6.2 kΩ
+50 °C (122 °F) 0.8 kΩ 4.3 kΩ
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