Megger TTR320 Series, Инструкция по эксплуатации

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AVTMTTR320-EN Rev A Oct 2008
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6
Service
Maintenance
Maintenance should be performed only by qualified persons familiar with the
hazards involved with high-voltage test equipment. Read and understand
Sections 2, 3, 4, and 5 before performing any service.
The TTR320 requires only periodic inspection. Periodically, inspect all hardware
items, including the cable assemblies, to ensure all is in good condition.
The TTR320 may be cleaned periodically. In so doing, do not allow water to
penetrate panel holes. An all-purpose, household spray cleaner can be used to
clean the panel. Polish with a soft, dry cloth, taking care not to scratch the
display screen cover. Clean the cables and mating panel receptacles with
isopropyl or denatured alcohol applied with a clean cloth.
Fuse Replacement
The TTR320 is protected by two mains fuses. Fuse replacement is indicated if
the electronic circuits do not function. Refer fuse replacement to qualified
personnel only. To avoid electric shock and fire hazard, use only the fuses
specified on Instrument panel. Note that 2 spare fuses are included with each
TTR.
F
WARNING
Before replacing the fuses, disconnect the power input
plug from the live power source.
To replace fuse(s), proceed as follows:
1. Disconnect the power cord from the TTR test set.
2. Using a small flathead screwdriver, carefully pry out the fuse holder of the
input power module (item 1 of figure 1.1).
3. Remove and properly dispose of spent fuse(s).
4. Install new fuse(s) making sure to use the type specified on Instrument panel.