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1-12. Temperature compensation and temperature compensation circuit
1. Temperature compensation in freezer and refrigerator
(1) GR-P227/L227/P257/L257
u Temperature compensation table by adjustment value (difference value against current temperature)
Ex) If you change compensation resistance at a refrigerator (RCR1) from 10 kΩ (current resistance) to 18 kΩ (modified
resistance), the temperature at the refrigerator will increase by +1°C[+1.8°F].
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Temperature compensation at refrigerator
Temperature compensation at freezer
Freezer Refrigerator
Resistance value Temperature Resistance value Temperature Remarks
(RCF1) compensation (RCR1) compensation
180 kΩ +5 °C [+9°F] 180 kΩ +2.5 °C [+4.5°F] Warmer
56 kΩ +4 °C [+7.2°F] 56 kΩ +2.0 °C [+3.6°F]
33 kΩ +3 °C [+5.4°F] 33 kΩ +1.5 °C [+2.7°F]
18 kΩ +2 °C [+3.6°F] 18 kΩ +1.0 °C [+1.8°F]
12 kΩ +1 °C [+1.8°F] 12 kΩ +0.5 °C [+0.9°F]
10 kΩ 0 °C [0°F] 10 kΩ 0 °C [0°F]
Reference temperature
8.2 kΩ -1 °C [-1.8°F] 8.2 kΩ -0.5 °C [-0.9°F]
5.6 kΩ -2 °C [-3.6°F] 5.6 kΩ -1.0 °C [-1.8°F]
3.3 kΩ -3 °C [-5.4°F] 3.3 kΩ -1.5 °C [-2.7°F]
2 kΩ -4 °C [-7.2°F] 2 kΩ -2.0 °C [-3.6°F]
470 Ω -5 °C [-9°F] 470 Ω -2.5 °C [-4.5°F] Cooler
EXPLATION FOR MICOM CIRCUIT