© OMICRON 2024 Page 5 of 25
Do not open the CP GB1’s housing.
Do not repair, modify, extend, or adapt COMPANO 100, CP GB1 or any accessories.
Use only original accessories available from OMICRON.
Use the CP GB1 and their accessories only in a technically sound condition and when its use is in
accordance with the regulations. In particular, avoid disruptions that could in turn affect safety.
1.3 Operating the measurement setup
Before operating the COMPANO 100 and CP GB1 ground them as described in section 3
"Connecting COMPANO 100 and CP GB1 to a power cable" on page 11.
Ground the CP GB1 near the place where the connection to the test object is made.
Make sure that the grounding stud is in good condition, clean and free of oxidation.
Life threatening voltages up to 600 V can appear on all CP GB1’s contacts and on all clamps and
cables connected to COMPANO 100 during the test. Keep safe distance from them.
Use a grounding set to ground the power cable at the near end whenever you handle the
measurement setup inside the danger zone (for example when changing connections at the CP GB1
between measurement loops).
Use only 10 m (~30 ft) measurement leads supplied by OMICRON to connect COMPANO 100 to CP
GB1.
Before connecting the CP GB1 with COMPANO 100 or when changing the connection, press the
Emergency Stop button. Release it only if you are outside the danger zone.
In addition to the above safety rules follow the application-specific instructions in the following
chapters.
1.4 Handling long cables
The entire working environment, including the power supply of the test system, must not extend
beyond the perimeter of the substation, except where this is not feasible due to the situation on site.
Make sure the COMPANO 100, its cables and the device under test are properly grounded as
described in this manual.
Before unreeling any power extension cords to supply the COMPANO 100, make sure the
respective cable is connected to a mains supply with protective earth (PE).
Before unreeling any measurement, communication or interface cables of the COMPANO 100,
make sure no cables are connected to an ungrounded device under test.
Extra care should be taken that cables are placed as close as possible to ground level (this practice
minimizes both electric and magnetic coupling).
Any measurement, communication or interface cables of the COMPANO 100 shall be placed within
an environment, where unauthorized or unintentional human entry are avoided during usage of the
COMPANO 100 with any means necessary.
1.5 Orderly measures
The CP CU1 User Manual, which covers also the CP GB1, or alternatively the e-book in PDF format has
always to be available on site where the CP GB1 or CP CU1 is being used. It must be read and observed by
all users of the CP GB1 and CP CU1.
The CP GB1 may be used only as described in chapters 3, 4 and 5. Any other use is not in accordance with
the regulations. The manufacturer and/or distributor is not liable for damage resulting from improper usage.
The user alone assumes all responsibility and risk.
The person responsible for the work activity (for example a measurement) must coordinate clear
communication with all persons and parties involved in work activities on and around the device under test,
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