Temperature Setting; Chamber Temperature; Key Lock Function - Sanyo MDF-U72V Instruction Manual

TEMPERATURE SETTING

Chamber temperature

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 unit is set at the factory that the chamber temperature -80
Table 1. Basic operation sequence (Example: Chamber temperature -75
Description of operation
Turn the power switch ON.
1
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 -50
temperature with no load is -85

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 possible. 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.
Key operated
o
C when the ambient temperature is 30
Mode
Key lock is OFF
Key lock is ON
Key operated
o
C.
Indication after operation
The current chamber temperature is
----
displayed.
The second digit is flashed.
SET
When pressed, the figure of settable
digit changes.
When pressed, the settable digit
is shifted.
Set temperature is memorized and the
current chamber temperature is
SET
displayed.
o
C.
Function
Enable to change temperature setting
Disable to change 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.
18
o
C)
o o
C to -90 C, the guaranteed