Rohde & Schwarz 3560.6550.06, Operating Manual

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ENV216 Operating Manual
3560.6550.12 -01- 6.1 E-1
6 Servicing
The device does not need to be regularly serviced. Servicing is limited essentially to wiping the device's
external surfaces.
However, it is recommended to check the rated specifications from time to time.
Device safety inspection
A device safety inspection of the network as defined in BGV A2 is not possible because of the required,
standard-compliant configuration according to CISPR 16 and VDE 0876. Therefore, the following ex-
aminations must be carried out as a minimum requirement.
Visual inspection
It should be ensured that parts relevant for active and passive safety are not visibly damaged or even
unsuitable for use in the device. In particular, a check should be made to determine whether safety-
critical parts may have been rendered unfit to meet the requirement to which they are subject as a re-
sult of the use to which the device has been put (effects extended use, environmental influences).
The following must not be damaged:
• Housing, displays, carrying handles, air vents
• Device connection cables, connection points and mains lead cleats
• Mains plug, fuse holder
• Labeling and markings, warning notices
• Isolated parts, wiring insulation
• Plug connections and clamping points
• Vent and leakage paths must not be altered unacceptably.
The firmness of the connections must be tested by tugging them briefly by hand.
A check must also be made to confirm that the fuses used match the nominal ratings indicated in the
documentation.
Test of the PE grounding connection
This test is intended to determine whether the resistance between contactable parts, which must be
securely grounded for safety reasons, and the grounding contact of the mains connector is less than
0.3
Ω
.
During the measurement, the entire length of the wire is to be moved in sections. If a change in resis-
tance is noted while part of the wire is being moved, the fault must be found with a detailed trouble-
shooting procedure. Defective cables must not be repaired. They must be replaced in all cases.