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4.8.7  Selecting the stirrer speed (ATC-140/250 A/B only) 
 
Press 
 (setup page 2) to select Stirrer speed.  
 
 
 
 
 
 
 
F3F2 F4 F5F1
 
 
 
Press 
 to edit the speed level of the stirrer. 
 
Select a speed setting between 0 and 50. 
The normal setting is between 10 and 15. 
 
When using the ATC-140/250 A/B with a dry block kit the 
stirrer speed must be set to 0. 
 
 
 
Caution… 
If the speed level chosen is too high, the magnet will fall off 
making a rattling sound and there will be no stirring in the 
fluid. With no stirring of the fluid, temperature gradients will 
emerge in the bath, which will again affect the result of the 
calibration. 
To reconnect the magnet, set the speed level to 0 and 
select a speed setting lower than the previous. 
 
Press 
 to accept the value and return to the setup menu. 
 
4.8.8  Setting the access code 
 
Press 
 (setup page 2) to select Access code (ATC-
125/156/157/320/650 A/B). 
Press   (setup page 3) to select Access code (ATC-140/250 
A/B).