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The following checks should be made before providing power to the monitor:
Verify that no tools or other equipment are present in the enclosure.
The earth ground is properly connected.
The mains power is properly connected.
All signal, relay and communication wiring is installed.
The monitor is protected by an appropriate circuit breaker.
Both transformer oil SUPPLY and RETURN valves are open.
Both instrument oil INLET and OUTLET valves are open.
All conduit fittings are fully tightened (rubber plugs are present on unused entry holes).
Verify that the instrument has a 0.6 m (24 in.) minimum clearance from the ground.
Verify that there are no excessive vibrations on the complete system.
Verify that the oil line connections have no leaks.