Hioki FT6031-50, Инструкция по эксплуатации

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54
Simplified Measurement for Earth Resistance
(Simplified Measurement Method, 2-pole Method)
Performing zero adjustment
The range that the instrument can provide zero adjustment for is
3
Ω
or less. If the measured value exceeds 3
Ω
, the message
Err
0 Ω ADJ
appears and zero adjustment will not be executed.
1
3
4
6
2
7
H(C) E
5
1
Remove the cover of the
measurement terminals.
2
Connect the E terminal and
H(C) terminal of the instrument
respectively with the L9787 Test
Lead (black) and L9787 Test Lead
(red).
3
Press the Power button to turn it
on.
4
Press the 3P/2P button to display
(2-pole method).
A measured value (approx. 0 V) of the earth
potential appears.
5
Connect (short-circuit) the tips of
test leads.
6
Press the MEASURE button.
A measured value of approx. 0
Ω
appears
in approx. 3 s, and lights up.
When the indicator appears below
the measurement terminal, a test lead
may not have been connected to the
measurement terminal, or the lead may
have a break. Check the connection and
perform cable check with a tester etc.
7
Press the 0
Ω
ADJ button.
lights up and then zero
adjustment is completed.
How to disable zero adjustment
Press and hold the
0 Ω ADJ
button for at least 1 s while is on.
HIOKI FT6031B961-00