110-512 BEL/EN 
Calibrating Your Circulator 
This sub-menu allows you to match the Circulator’s temperature display to an external reference 
thermometer. A value from -3.0° to +3.0°C may be entered; the factory default is 0.0°C. 
IMPORTANT: To prevent Offset Calibration value from being changed unintentionally, the following 
power down/power up sequence is required to enable the Calibration function.  
1.  Place the power switch/circuit breaker on the rear of the unit in the OFF position. 
2.  Return the power switch/circuit breaker to the ON position while pressing and holding the 
 
key.  
3.  When STANDBY appears on the display, release the  
 
key and press  . You can now 
proceed as outlined below.   
The Calibration function will remain enabled until the electrical power is turned OFF by pressing the 
 key. 
 
To Access: Press the 
 
key until CALIBRATE appears on the display. 
To Change: Touch the arrows until the desired calibration temperature is displayed. 
To Accept: Press 
, 
,  ,
 
or allow the LCD to return to the main operational 
display (approximately 10 seconds). 
CAUTION: The Offset Calibration value is always shown in degrees C, even if degrees F is selected 
as the temperature unit in which the control and actual bath temperatures are displayed. Your 
Circulator will automatically convert the °C offset calibration value to the correct °F display offset 
value.  
 
Touch top arrow to 
increase calibration offset 
 
Touch bottom arrow to 
decrease calibration offset