9
* Calibration of the low and high end of the sensor input is done at the factory. Field calibration of the sensor may
be performed using the following technique: Enter the configuration routine and press the top left switch until a
little "c" (Item G) is displayed. Add water that is around 10
o
C to the bath completely covering the sensor. Insert a
calibrated thermometer. After the thermometer stabilizes, match the display setting to the thermometer reading
by pressing the up or down push-button switch. Press the top left switch. The readout will now display a big "C"
(Item H). Remove water from the bath and add hot water of about 70-80
o
C. After the unit stabilizes, match
readout display to temperature on thermometer. Press the top left switch. Calibration is now complete.
9.06 Pump does not
1.
Verify that the water level is above both the pump inlet
circulate water.
and outlet.
2.
If pump is not running, verify that power is applied to the
bath. If power is present, check wiring of pump to power
switch. If wiring is correct, replace the pump.
9.07 Replace CPU or
Display/Keyboard
board
1.
The software must be configured to match the Bath model. To
enter configuration mode, press the upper left push-button
switch while applying power. The upper left switch is labeled
"Calibrate." This switch is used to enter configuration
codes and steps through the different levels of
configurations.
Immediately following power up with the switch depressed,
the readout will display a 3-digit number. This is the software
revision. The readout will then begin to do a self-test of
digits. Press the "Calibrate" switch once. The readout will
display 0000. Follow the listing below to complete the
configuration.
DISPLAY
ACTION
A.
0000
Enter 37 using up/down arrows.
Press "Calibrate"
B.
U 51
Enter 51 using up/down arrows.
Press "Calibrate"
C.
P 2.0
Enter 2.0 using up/down arrows.
Press "Calibrate"
D.
i400
Enter 400 using up/down arrows.
Press "Calibrate"
E.
t 8
Enter 8 using up/down arrows.
Press "Calibrate"
F.
2668#
None. Diagnostic Display.
Press "Calibrate"
G.
"Water Temp"
*LOW TEMP CALIBRATION
LITTLE "c" Factory Setting.
Press "Calibrate"
H.
"Water Temp"
*HI TEMP CALIBRATION
BIG "C" Factory Setting.
Press "Calibrate"
#
This number corresponds to the temperature of the sensor. It will not necessarily be "2668",
but a four digit number.
