10
REFRIGERATOR COMPONENTS
Control panel and keypad
1. Alarm buzzer stop key (BUZZER): To silence the audible alarm, press this key.
2. Temperature display key (UPPER/LOWER): By pressing this key, the displayed temperature is
changed; upper monitor bottle temperature, lower monitor bottle temperature, and average temperature
of upper and lower monitor bottles are displayed in sequence.
3. Alarm test key (ALARM TEST): To check the operation of alarm buzzer, lamp, and remote alarm
terminal.
4. Calibration key (CAL): To calibrate the temperature. This key is used only when the temperature
calibration is necessary.
5. Digit shift key ( ): Pressing this key in the CAL mode will cause the changeable digit to shift.
6. Numerical value shift key ( ): Pressing this key in the CAL mode will cause the numerical value
to change.
7. Door check lamp (DOOR): This lamp is lit when the door is ajar or open.
8. Alarm lamp (ALARM): This lamp blinks during an alarm condition (temperature alarm or power
failure alarm).
9, 10. Temperature display monitor lamp (UPPER, LOWER): Lamp 9 is lit when upper monitor bottle
temperature is displayed. Lamp 10 is lit when lower monitor bottle temperature is displayed.
Both 9 and 10 are lit when the average temperature of lower and upper monitor bottle temperature is
displayed.
11. Digital temperature indicator: This indicator shows the current chamber temperature.
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