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Servicing
Fuse Replacement
Fuse Replacement
Scrubber
Replacement
7-40
Model 42i Trace Level Instruction Manual
Note If Service Mode is not displayed, refer to
Mode" on page
7-4
, then return to the beginning of this step.
4. Wait at least 10 seconds for the ambient reading to stabilize, use
and
press
to save the temperature value.
5. Install the cover.
Use the following procedure to replace the fuse.
Equipment Required:
Replacement fuses:
250VAC, 4 Amp, SlowBlow (for 100VAC and 110VAC models)
250VAC, 2 Amp, SlowBlow (for 220-240VAC models)
1. Turn instrument OFF and unplug the power cord.
2. Remove fuse drawer, located on the AC power connector.
3. If either fuse is blown, replace both fuses.
4. Insert fuse drawer and reconnect power cord.
Use the following procedure to replace the ammonia scrubber
18).
Equipment Required:
Ammonia scrubber
Nut driver, 3/16-inch
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. Unscrew the Teflon tubing at both ends of the scrubber.
"Accessing the Service
to enter the known temperature, and
▲
▲
(Figure 7–
Thermo Fisher Scientific
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Troubleshooting
