Sonel PAT-800, Operating Manual

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OPERATING MANUAL PAT-800/805 version 1.09 26
Use the probe connected to I2 socket and touch PE pin of
the test socket.
Press START , to begin auto-zero.
After finishing auto-zero process, for 1s the
message is displayed and the meter
enters the measuring function.
Completed auto -zero process during the measurement is signalled by displaying .
In order to remove auto-zero proceed in the same manner, but disconnect the test lead from PE.
After finishing for 1s the message is displayed.
4.4.3 Three-wire measurement of protective lead resistance using 10/25A
current (only PAT-805)
Connect the mains plug of the tested device into the test socket of the
meter. Use the power probe (or Kelvin crocodile clip) connected to
U2 and
I2 sockets and touch metal parts of the tested device connected to PE.