BK Precision Sefram MW9092, Инструкция по эксплуатации

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Insulation Tester
11
c. Measuring low resistance:
The circuit under test must be completely de-energized.
Check the fuse before testing. See Testing the fuse section later in this manual.
Connecting the tester to an energized circuit while the test is active will blow the
fuse.
i.Short the end of probes together and press the blue button
to compensate the probe resistance for

2Ω, the “ ”
symbol will be displayed when the compensating is finished. The
range of compensation needs to be less than
2Ω. The value of
compensation will be kept next time you use this function.
ii.Connect the probes to the circuit to be measured. The Tester
automatically detects if the circuit is energized. If the detected
voltage is above 2V,
" > 2V " and “ ” will appear on the
LCD display. In this condition, the test is inhibited. Disconnect the
Tester and remove power before proceeding.
iii. Push and hold button
to start the test. The “
” symbol appears on the LCD display until you release
the button. The resistance reading appears on the
primary display until a new test is started or a different function
or range is selected. If it beeps 4 times, means the tester has not
finished the terminal voltage test. You need to start the test again.
If you press button to enter
the Lock Mode, and then press
button to start the test.
The“
” symbol appears on the
LCD display and the test voltage will
continue to be applied until the
or button is
pressed again.
When resistance is higher than the
maximum measuring range, the
Tester
displays the “ ” symbol
and the maximum resistance for the
range.
Fig.3