Fuse Replacement - Honeywell CM4 Technical Handbook

CM4 Four-Point Continuous Monitor
Observe the following caution notice when performing maintenance
and cleaning the filter block. This caution notice also applies to cleaning
the optics block:
CAUTION
Do not use compressed air sources containing CFCs (chlorofluorocarbons).
The CFCs may enter the pyrolyzer and be converted to HF/HCl when
monitoring resumes. Also, do not permit the compressed air nozzle to
come in direct contact with the instrument. Pressurizing the flow path
could cause damage to the Model CM4-P.
Air Filter
CAUTION
Failure to maintain the air filter will result in eventual F19-OVERTEMP
faults and loss of monitoring.
Model CM4-P has an air filter located on the lower right of the front
panel, located where the flow control valves are on the standard Model
CM4. This filter should be removed and cleaned (rinse with clean water
and dry thoroughly) every 30 days.

9.4 Fuse Replacement

This section describes the AC line fuse. Table 9-3 shows acceptable
fuse values.
Voltage
CM4
120 volt 60 Hz
100 volt 50/60 Hz
220/240 volt 50/60 Hz
CM4-P
110/120 volt 60 Hz
220/240 volt 50/60 Hz
Table 9-3: Fuse Replacement
CM4 Technical Manual
Rating and Size MDA P/N
3.15A SLO-BLO 5x20 mm 102531
3.15A SLO-BLO 5x20 mm 102531
2A SLO-BLO 5x20 mm 104708
5A SLO-BLO 5x20 mm 0170-0014
4A SLO-BLO 5x20 mm 0170-0021
9.4.1 AC Line Fuse
AC
Fuse
Cap
Figure 9-9: AC Fuse Cap
The CM4 is protected with a fuse located on the rear panel beneath
the power cord.
To replace the AC line fuse:
1. Unplug the power cord.
2. With a slotted screwdriver, carefully pr y the fuse cap
outward.
3. Always replace fuses with the same type and style.
4. Replace the fuse cap.
NOTE:
A spare fuse is located on top side of fuse cap.
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