3.4 Safe operation procedures
3.4.1 Wiring and Safe Connection
Device under test,
for example, a
protection relay.
Safe area Dangerous area
To carry out tests with COMPANO 100, proceed as follows:
1. Always press the Emergency stop button first.
2. Secure the device under test by following the 5 basic safety rules (→ The 5 basic safety rules on
page 7):
3. Connect the cables to the device under test.
4. Connect the banana plug cables to COMPANO 100 (→ Safe use of test leads and adapters on
page 10).
5. Release the Emergency stop button and power up COMPANO 100. Do not enter the dangerous
area anymore now (→ image above).
6. Start the test at COMPANO 100.
While testing, do not enter the dangerous area. Stay clear from the cable ends at the device under
test. Quite often these devices have connectors that can easily be touched. The same applies to
some connection adapters of COMPANO 100. Always stay in the safe area (→ image above).
When the test is finished and you want to leave the site, proceed as follows:
1. Power down COMPANO 100, and press the Emergency stop button.
2. To prevent the COMPANO 100 from unauthorized usage or from being powered up again
accidentally, pull off the dongle (the connector for external safety functions → side view on
page 18).
3. Disconnect the cables from COMPANO 100.
4. Disconnect the cables from the device under test.
Safety instructions
OMICRON
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