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Servicing
Front Panel Board Replacement
Front Panel Board
Replacement
7-48
Model 42i Trace Level Instruction Manual
9. At the Flow Sensor Cal menu, press
The Calibrate Flow Span screen appears.
10. Wait at least 10 seconds for the reading to stabilize, use
and
to enter the flow sensor reading, and press
save the value.
11. Install the cover.
Use the following procedure to replace the front panel board
23).
Equipment Required:
Front panel board
Equipment Damage Some internal components can be damaged by small
amounts of static electricity. A properly grounded antistatic wrist strap
must be worn while handling any internal component.
1. Turn instrument OFF, unplug the power cord, and remove the cover.
2. Remove the three ribbon cables and the two-wire connector from the
front panel board.
3. Pop off the board from the two top mounting studs and remove the
board by lifting it up and off the slotted bottom support.
4. Replace the front panel board by following previous steps in reverse.
to select Span.
to
(Figure 7–
▲
Thermo Fisher Scientific
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