3-2-10. KEEPING TEMPERATURE COMPENSATION AND TOO COLD/ TOO WARM CUT COMPENSATION CIRCUIT
(1) Keeping Temperature Compensation Circuit
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This circuit is used for entering the required level of temperature compensation into MICOM to adjust keeping
temperature at the upper, middle and lower compartment.
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Temperature compensation table by adjustment of resistance value (difference value against current temperature).
Ex) Temperature at the middle compartment increases by +1°C if changing compensation resistance at the middle
compartment (RCT) from 10K (current resistance) to 18K (corrected resistance).
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MIDDLE COMPARTMENT
KEEPING TEMPERATURE
COMPENSATION
LOWER COMPARTMENT
KEEPING TEMPERATURE
COMPENSATION
16.2KF
(UPPER
COMPARTMENT
SENSOR)
Upper Compartment
Middle/Lower Compartment
Remarks
6.2 K
Ω
+2.5 °C
180 K
Ω
+2.5 °C
5.1 K
Ω
+2.0 °C
56 K
Ω
+2.0 °C
3 K
Ω
+1.5 °C
33 K
Ω
+1.5 °C
2.4 K
Ω
+1.0 °C
18 K
Ω
+1.0 °C
1.2 K
Ω
+0.5 °C
12 K
Ω
+0.5 °C
0 °C
10 K
Ω
0 °C
620
Ω
-0.5 °C
8.2 K
Ω
-0.5 °C
1.2 K
Ω
-1.0 °C
5.6 K
Ω
-1.0 °C
1.8 K
Ω
-1.5 °C
3.3 K
Ω
-1.5 °C
2.4 K
Ω
-2.0 °C
2 K
Ω
-2.0 °C
3 K
Ω
-2.5 °C
470
Ω
-2.5 °C
RCF2
RCF1
Resistance Value
Temperature
Compensation
Temperature
Compensation
warmer
Cooler
Standard temperature
RCB(Lower)
RCT(Middle)
Resistance Value
Summary of Contents for GR-J303TG
Page 5: ...2 CIRCUIT DIAGRAM 5 ...
Page 28: ... 2 Parts List 28 ...
Page 29: ... 29 SRT ASSEM ...
Page 30: ...3 4 2 PWB PCB ASSEMBLY DISPLAY STANDARD 1 Parts diagram 30 2 Parts List ...
Page 32: ... 32 LCD 6871JB1464 LED 6871JB1465 ...
Page 33: ...3 5 2 PWB PCB ASSEMBLY DISPLAY CIRCUIT DIAGRAM 33 LCD 6871JB1464 LED 6871JB1465 ...
Page 38: ... 38 u u GR J303TG TS 252A 252C 128B 252B 252A 252C 252B 253A 253C 253B ...
