© OMICRON 2024 Page 15 of 25
Death or severe injury caused by high voltage or current possible.
Stay outside the danger zone during the measurement.
Use a voltmeter with a 1000 V AC range and a suitable protection level.
Note: Since the voltmeter is placed in the danger zone, it must be positioned in a way to be able to read the
volt
age.
5. Connect the voltmeter to the CP GB1 as shown in Figure 5.
6. Select the 1000 V AC range.
7. Leave the danger zone and open the grounding switch.
Death or severe injury caused by high voltage or current possible.
If you see or hear anything uncommon in the test equipment, for
example, noise of electric discharge or lightening of surge arrestors in
the CP GB1, close the grounding switch before touching the
measurement setup.
8. Read the v
oltage at the voltmeter from outside the danger zone.
9. Close the grounding switch again!
Note: If the measured voltage exceeds 20 V, the measurement cannot be performed, since the current
output of COMPANO 100 is not designed for driver higher voltages! If this is the case, please consider the
following options:
• Try to reduce the interference from parallel cables by
c) reducing the load flow on parallel cables,
d) de-energizing parallel systems.
• Perform the measurements at another time, when load flow is lower.
If none of the above is successful, consider using CPC 100 + CP CU1 + CP GB1 as alternative
measurement solution, which can be used for voltages up to 500 V.
3.4 Forth criterion: Injected test current
After the measurement of the open-line voltage, COMPANO 100 can now be connected to the CP GB1.
In the example in Figure 6 COMPANO 100 is connected to L1 and L2.
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