11-4
Reciprocal Shaking Water Baths
Thermo Scientific
Section 11
Part Replacement
Replace CPU or Display/
Keyboard Board. See note
on following page.**
6. continued
Immediately following power up with the push-button 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 "Select/Enter" push-button once. The readout will display 0000. Follow the
listing below to complete the configuration.
A. Enter 37 using up/down arrows.
Press "Select/Enter"
B. Enter 12 using up/down arrows.
Press "Select/Enter"
C. Enter 2.0 using up/down arrows.
Press "Select/Enter"
D. Enter 500 using up/down arrows.
Press "Select/Enter"
E. Enter 1 using up/down arrows.
Press "Select/Enter"
F. Display Not Used.
Press "Select/Enter"
G. Display Not Used.
Press "Select/Enter"
H. LOW TEMP CALIBRATION*
LITTLE c. Factory Setting.
Press "Select/Enter"
I. HI TEMP CALIBRATION
BIG C. Factory Setting.
Press "Select/Enter"
Configuration is now complete
* Calibration of the low and high end of the sensor input is done at the factory. Field calibration of the sensor may be per-
formed using the following technique: Enter the configuration routine and press the top left switch until a little "c" (Item H) is
displayed. Add water that is around 10°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 but-
ton switch. Press the top left switch. The readout will now display a big "C" (Item I). Remove water from the bath and add
hot water of about 70 - 80°C. After the unit stabilizes, match readout display to temperature on thermometer and press the
top left switch. Calibration is now complete.
**Note:
When replacing CPU printed circuit board reprogramming may be necessary. Follow thoroughly instructions provided
with the replacement circuit board.
