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 temperature is -75oC.

Note: The chamber temperature is set to -80oC at the factory.

Table 1 Basic operation sequence (Example: Chamber temperature -75oC)

 

Description of operation

Key operated

Indication after operation

1

Connect the power cord to the

----

The current chamber temperature is

 

 

 

 

 

 

 

 

 

dedicated outlet.

 

displayed.

 

 

2

Press SET key.

SET

The second digit is flashed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When pressed, the figure of settable

3

Set to -75 with the numerical value

 

digit changes.

shift key and digit shift key.

 

When pressed, the settable digit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

is shifted.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Set temperature is memorized and the

 

 

 

 

4

Press SET key.

SET

current chamber temperature is

 

 

 

displayed.

Note:

ŶThe temperature set mode returns to the temperature display mode automatically when 90 seconds has passed without any key operation.

ŶAlthough the value of the chamber temperature setting can range from -55oC to -85oC, the guaranteed temperature range with no load is between -60oC and -80oC when the ambient temperature is 30oC.

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

Mode

Function

L

0

Key lock is OFF

Enable to change of temperature setting

L

1

Key lock is ON

Disable to change of temperature setting

Table 2. Procedure for key lock setting (change from key lock OFF to key lock ON)

 

Description of operation

Key operated

Indication after operation

1

 

----

The current chamber temperature is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

displayed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

Press digit shift key for 5 seconds.

 

The first digit is flashed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

Press numerical value shift key

 

When pressed, the figure of settable

 

 

 

 

 

 

and scroll the figure to 1.

 

digit changes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The key lock is set to ON.

4

Press SET key.

SET

The current chamber temperature is

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

displayed.

47

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Sanyo MDF-C8V service manual Chamber Temperature Setting, KEY Lock Function

MDF-C8V specifications

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