Phcbi MDF-MU300H, Operating Instructions Manual

15

   ALARM TEMPERATURE SETTING 

 
This unit is provided with both high and low temperature alarms. The temperature at which the alarm is 
activated can be changed. 

Note:

    The temperature alarm is set at ±10

o

C of the chamber set temperature at the factory. 

Display 

Mode 

Available set range 

F01 

High temperature alarm set  between 5

o

C and 15

o

C higher than the chamber set temperature 

F02 

Low temperature alarm set 

between 5

o

C and 15

o

C lower than the chamber set temperature 

 
As an example, Table 3 shows the procedure to set the high temperature alarm so that the alarm can 
activate when the chamber temperature is 5

o

C higher than the set temperature. 

Table 4 shows the procedure to set the low temperature alarm so that the alarm can activate when the 
chamber temperature is 5

o

C lower than the set temperature. 

Table 3    Procedure for setting high temperature alarm

Description of operation 

Key operated 

Indication after operation 

1  

---- 

The current chamber temperature is 
displayed. 

2 

Press numerical value shift key for 
5 seconds. 

The first digit is flashed. 

3 

Press numerical value shift key and 
scroll the figure to 1.   

When pressed, the figure of settable   
digit changes. 

4  Press set key. 

SET 

The first digit is flashed. 

5 

Set the temperature to 005 with the 
digit shift key and numerical value 
shift key. 

When pressed, the changeable digit 
is shifted. 

When pressed, the figure of settable   
digit changes. 

6  Press set key. 

SET 

Alarm temperature is memorized and   
the current chamber temperature is   
displayed. 

Table 4    Procedure for setting low temperature alarm

Description of operation 

Key operated 

Indication after operation 

1  

---- 

The current chamber temperature is 
displayed. 

2 

Press numerical value shift key for 
5 seconds. 

The first digit is flashed. 

3 

Press numerical value shift key and 
scroll the figure to 2.   

When pressed, the figure of settable   
digit changes. 

4  Press set key. 

SET 

The first digit is flashed. 

5 

Set the temperature to -05 with the 
digit shift key and numerical value 
shift key. 

When pressed, the changeable digit 
is shifted. 

When pressed, the figure of settable   
digit changes. 

6  Press set key. 

SET 

Alarm temperature is memorized and   
the current chamber temperature is   
displayed. 



 The setting mode returns to the temperature display mode automatically when 90 seconds has passed 

without any key operation.    In this case, any setting before pressing set key (SET) is not memorized.