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Operation
Control Panel
Figure 4. Control Panel
1. Display: During normal operation, the display shows
cabinet temperature in degree Celsius as measured by
the primary sensor. When Alarm and Compressor are
active, the respective LEDs will be displayed. Refer to the
following table for LED display symbols. A display code
will also be visible during the functioning based on the
type of alarm.
Defrost LED
Alarm LED
On Fixed:
On Fixed:
Defrost Active
Alarm Present
Off: Defrost
Flashing: Alarm
Off
Silenced
Off: No Alarm
2. Defrost: This button is used to go back from the
parameter settings.
16 |
Operation
Compressor LED
On Fixed:
Compressor Active
Flashing: Delay,
Protection or
Activation Blocked
Off: No Alarm
3. SC: This button is used to turn the cabinet LED light on
and off with a single touch. This button is also used for
selecting an option in parameters.
4. Up: Scrolls the menu items and increases the values.
5. Down: Scrolls the menu items and decrease the values.
6. Power Fail LED: This LED indicates the power failure
situation in the unit.The flash light indicates power failure
situation.
7. Key Switch: Used to turn the power to the controller and
turn on and off the power failure alarm.
Note: This is not a primary disconnect device, thus even
if the key switch is OFF, the evaporator fan will be ON as
it is hard wired. Remove the power cord to completely
turn OFF the unit.
8. Off: Turns the power of the controller off.
9. Power On: Turns On power to the controller, and used to
silence the power failure alarm.
10. All Alarm ON: Turns On the audible power fail alarm.
General Purpose and Chromatography Refrigerators
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