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Temperature Management 

Room temperature controller 

Ref.-no.: TR..231.., TR..241.., 

TR..236.., TR..246.. 

 

6.  Restricting the temperature setting range 

The temperature controller is set ex works to the maximum  
setting range of 5 °C to 30 °C. See Fig. 

f

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Fig. 

f

 

Two adjustment rings are located in the setting knob. You can use these 
rings to restrict the temperature setting range required e.g. between 8 °C 
and 23 °C. 

Procedure: 

1.  Select the temperature limits. Example: max. 23 °C, min 8 °C  
2. 

Note!  

First position the setting knob roughly in the centre of the required 
setting range. Example: The centre point between 8 °C and 23 °C is 
approximately 15 °C. 

3.  Now remove the setting knob. 
4.  Set the red locating ring to the max. temperature limit. Example: 23 

°C Rotate anti-clockwise. The numbers on the outer dial apply! Insert 
the tip of a pen in the hole and turn the red ring to the left until it 
reaches 23 °C (max. scale). See Fig. 

g

.

 

 

Fig. 

g

 

5.  Set the blue locating ring to the min. temperature limit. Example: 8 °C 

Rotate clockwise. The numbers on the inner dial apply. Insert the tip 
of a pen in the hole and turn the blue ring to the right until it reaches 8 
°C (min. scale). See Fig. 

h

 

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