Heidolph RotaChill User Manual
Page 19
110-509 HD/EN
18
Setting the Offset Calibration
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 the Offset Calibration value from being changed unintentionally, the
following power down/power up sequence is required to enable the Offset Calibration function.
Refrigerating Circulators:
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.
To Access:
Press the key until OFFSET CALIBRATE appears on the display.
To Change:
Press or .
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.
Appears when in
Offset Calibrate sub-menu