Chamber Temperature Setting, KEY Lock Function

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

Connect the power cord to the

----

The current chamber temperature is

dedicated outlet.

displayed.

Press SET key.

SET

The second digit is flashed.

When pressed, the figure of settable

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

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

----

The current chamber temperature is

displayed.

Press digit shift key for 5 seconds.

The first digit is flashed.

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.

Press SET key.

SET

The current chamber temperature is

displayed.

MDF-C8V specifications

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