Earth Resistance Clamp Meter
• The clamp jaw is closed incorrectly, "---" is displayed
• The batteries service life is 90%
3. Current measurement
1. Press the A button on the instrument.
2. The display shows the current unit "A" or "mA", the
instrument is in
current measurement mode. You can measure current
of the conductor.
3. Read the measurement value on the display.
4. If the display shows symbol "OL" , it indicates the
measured value exceeds the measurement range.
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Earth Resistance Clamp Meter
4. Hold button
Press the HOLD button to lock display of the current measure
state and last measurement on measurement mode.
5. Alarm operation
1. On resistance measurement, press the AL button, "AL"
symbol and the value of the alarm threshold are displayed.
2. According to the measurement demand, you can press
"AL" button time after time to select one of three alarm
modes:
---- LOW ALARM MODE: when signals
measurement below the alarm threshold, a continuous
beep at low frequency.
The
symbol is displayed.
---- HIGH ALARM MODE: when signals measurement
belowthe alarm threshold, a continuous beep at high
frequency.The
symbol is displayed.
---- NO ALARM MODE: signals measurement is not
confined in alarm threshold .
3. Set the alarm threshold
The earth resistance clamp set initial Alarm threshold value
is high alarm threshold of 20Ω. In resistance measurement
mode, press the
+Al to set in Alarm threshold value
setting mode, then "AL" symbol and the Alarm threshold
value are displayed; press
increase or decrease the Alarm threshold value, the Alarm
threshold is from 1 to 100Ωinclusive. After switching off the
threshold value is not changed. Setting Alarm threshold
value completed, you can press AL button to select one of
the three Alarm mode: HIGHT ALARM MODE, LOW
ALARM MODE, NO ALARM MODE, when the selection is
completed, you can press the
threshold value setting mode.
A or
Ω button,you can
button to exit Alarm
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