Operation; Test Equipment Integrity; Cibano 500 - Omicron CIBANO 500 PTM User Manual

Power supply from isolated grids (IT)
An IT grid is a grid structure where none of the active conductors are galvanically connected to ground.
In an IT grid, only the PE is connected to ground.
In IT grids the check fails – even if there is a PE connection. This can be the case when CIBANO 500 is
powered by a generator. Since every operation mandates a PE connection, you need to manually verify
this.
If CIBANO 500 is supplied by a generator, the equipotential ground or PE of the generator has to be
grounded properly.
► If this is not possible, measurements are not permitted and cannot be performed.
Additional information
Instead of supplying CIBANO 500 from phase-neutral (L1-N, A-N), it may also be supplied from phase-
phase (for example, L1-L2; A-B).
► Make sure that the voltage does not exceed 240V AC.
► Make sure that the power supply is fuse-protected (16 A automatic circuit breaker).
► Do not use an extension cable on a cable reel to prevent an overheating of the cord; run out the
extension cord.
► Keep extension cables as short as possible to prevent power loss.
1.5

Operation

When operating the CIBANO 500 test system and its accessories, observe the following safety
instructions.
1.5.1

Test equipment integrity

► Do not modify, extend, or adapt CIBANO 500 and its accessories.
► Use only the CIBANO 500 original accessories and cables and only use the OMICRON accessories
together with OMICRON devices as described in this manual.
► Operate CIBANO 500 and its accessories only under ambient conditions specified in "Technical data"
in the CIBANO 500 User Manual.
1.5.2

CIBANO 500

► Use only adequately rated power cords.
► Supply CIBANO 500 only from a power outlet with protective earth (PE).
► To run CIBANO 500 at the maximum power level, we recommend mains overcurrent protection with
a 16 A automatic circuit breaker.
► Position the measurement setup so that you can easily disconnect CIBANO 500 from mains.
► Do not use extension cables on a cable reel to prevent overheating of the cord. Instead, run out the
extension cord.
► Do not operate CIBANO 500 without a solid connection to ground of at least 6 mm
Ground CIBANO 500 as close as possible to the operator.
OMICRON
Safety instructions
2
cross-section.
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