Conair MPA User Manual
The microKool chillers use thermocouples to sense the tem-
perature in the return and supply process lines. These thermo-
couples should be calibrated annually, or when a new thermo-
couple is installed, to ensure correct operation.
perature in the return and supply process lines. These thermo-
couples should be calibrated annually, or when a new thermo-
couple is installed, to ensure correct operation.
The chiller’s Calibration Mode provides zero and span calibra-
tion of both the supply and return line thermocouples. You
access the Calibration Mode while in Test Mode.
tion of both the supply and return line thermocouples. You
access the Calibration Mode while in Test Mode.
Press any button to display the first test menu.
Select the Calibration Mode menu.
Press and hold the Setpoint key for 3 seconds to index
to each test menu until the controller indicates “SC.L” in
the Actual display.
to each test menu until the controller indicates “SC.L” in
the Actual display.
Release the Setpoint key.
You are now in calibration mode. Each press and release
of this key will exit the current calibration and start the
next calibration. The table below lists the calibrations that
will be performed.
of this key will exit the current calibration and start the
next calibration. The table below lists the calibrations that
will be performed.
Using the thermocouple calibrator, apply the
appropriate temperature to the control input.
appropriate temperature to the control input.
C
ALIBRATING
T
EMPERATURE
S
ENSORS
microKool Portable Chillers
UGH004/0999
5-12
M
AINTENANCE
Special Tools Needed:
❒
thermocouple calibrator
2
3
4
5
SETPOINT
ACTUAL
CALIBRATION
DISPLAY
DISPLAY
Zero Calibrate Supply Sensor
32° F (0° C)
SC.L
Zero Calibrate Return Sensor
32° F (0° C)
rC.L
Span Calibrate Supply Sensor
510° F (266° C)
SC.H
Span Calibrate Return Sensor
510° F (266° C)
rC.H