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Appendix C
Preventive Maintenance
C.1
Safety Testing
PAT testing in accordance with local regulations, should be performed on a regular
basis, (typically annually for an instrument in daily use).
C.2
Fuses
Two T 3.15A/250V a.c. antisurge ceramic fuses are located on the back panel, one
for the live feed and one for the neutral as follows:
When replacing fuses:
1) Switch off the power and disconnect the power cord before removing the fuse cover.
2) Always replace broken fuses with a fuse of the same rating and type.
C.3
Cleaning
The fascia may be cleaned with a soft cloth, lightly dampened with water or a mild
detergent.
Shock Warning
The equipment contains no user servicable parts. There is a risk of severe
electrical shock if the equipment is operated with the covers removed.
Only personnel authorized by Thorlabs Ltd and trained in the
maintenance of this equipment should remove its covers or attempt any
repairs or adjustments. Maintenance is limited to safety testing and
cleaning as described in the following sections.
Caution
The instrument contains a power supply filter. Insulation testing of the
power supply connector should be performed using a DC voltage.
Repeated application of ‘flash’ test may damaage the insulation.
Fuse
Rating
Type
Fused Line
F1
T 3.15A
ceramic; antisurge; 20mm
Live feed
F2
T 3.15A
ceramic; antisurge; 20mm
Neutral feed
Warning
Disconnect the power supply before cleaning the unit.
Never alow water to get inside the case.
Do not saturate the unit.
Do not use any type of abrasive pad, scouring powder or solvent, e.g.
alcohol or benzene.