Chamber Temperature Setting; Key Lock Function - Sanyo MDF-C8V Service Manual

CHAMBER TEMPERATURE SETTING

Table 1 shows the basic procedure for setting the chamber temperature. Perform key operations in the
sequence indicated in the table. The example in the table is based on the assumption that the desired
o
temperature is -75 C.
Note: The chamber temperature is set to -80
Table 1 Basic operation sequence (Example: Chamber temperature -75
Description of operation
Connect the power cord to the
1
dedicated outlet.
2 Press SET key.
Set to -75 with the numerical value
3
shift key and digit shift key.
4 Press SET key.
Note:
The temperature set mode returns to the temperature display mode automatically when 90 seconds has
passed without any key operation.
Although the value of the chamber temperature setting can range from -55
temperature range with no load is between -60

KEY LOCK FUNCTION

This unit is provided with the key lock function. When the key lock is ON, change of temperature setting
through the key pad is not available. The key lock is set to OFF at the factory.
Display
L 0
L 1
Table 2. Procedure for key lock setting (change from key lock OFF to key lock ON)
Description of operation
1
2 Press digit shift key for 5 seconds.
Press numerical value shift key
3
and scroll the figure to 1.
4 Press SET key.
o
Key operated
o
Mode
Key lock is OFF
Key lock is ON
Key operated
C at the factory.
Indication after operation
---- The current chamber temperature is
displayed.
SET The second digit is flashed.
When pressed, the figure of settable
digit changes.
When pressed, the settable digit
is shifted.
Set temperature is memorized and the
SET current chamber temperature is
displayed.
o
C and -80 C when the ambient temperature is 30
Function
Enable to change of temperature setting
Disable to change of temperature setting
Indication after operation
---- The current chamber temperature is
displayed.
The first digit is flashed.
When pressed, the figure of settable
digit changes.
The key lock is set to ON.
SET The current chamber temperature is
displayed.
47
o
C)
o o
C to -85 C, the guaranteed
o
C.
14