Confirming temperature accuracy
35
Calibrating the unit
Starting sensor calibration
Calibrate the
Pearl
temperature sensor as
follows:
1. Switch on the circulator and start the unit.
2. Start the calibration by pressing the
timer
key
and
OK
simultaneously. Hold the keys
down until the display's decimal point
starts blinking.
The controller will now heat up to the pre-
set target temperature of 30 °C(86 °F).
The bath temperature will display on the
LED screen.
3. Once the target temperature has been
reached, allow the bath temperature to
stabilize for approximately 3 more min-
utes.
4. Then read the temperature shown on the
calibrated thermometer. Round off this
value (for example: round 28.87 °C to
28.9 °C) and enter it into the unit.
5. To do this, press one of the arrow keys to
switch the display from the actual tem-
perature to the target temperature. Then
use the arrow keys to enter the rounded
value.
6. Confirm by pressing
OK
. The unit will dis-
play
CAL
to confirm that the calibration
was successful.
Notice
Calibration is possible up to ±5 °C deviation.