Earth Resistance Clamp Meter
6. Memory function
1. Clear memory
Press the HOLD+MEM for 3 seconds, then the "CLR"
symbol is shown on the display. At a beep, the memory
is cleared. The instrument return to measurement mode
automatically.
2. Save measured value
When press the MEM button,the "MEM" symbol is
displayed; press this button for 2 seconds to save the
current measured value in memory.The number of record
goes up by 1 automatically and is shown on the display,
when the number of the record is 99, if MEM button is
pressed again at this time, a beep is emitted and the
instrument prohibits saving the measurement value.
When the batteries service life is less than 20%, a beep
warns that the saving measured value is prohibited.
3. Read the saving measurements
Press the
+MEM for 1 second, then the instrument is
in the read memory mode, the "MR" and "HOLD" symbo
are displayed, the number of the record and the measured
value are shown at one time. To display previous record
or subsequent record in the memory press
or
Ω button. You can press the
record mode to return resistance measurement mode.
7. Special function
1. Press
+Ω button, the
from the display, the buzzer be switched off and beep
function of pressing button or Alarm function is invalid;
press the
+Ω to switch on the buzzer again.
2. ON/OFF Auto Power Off function
Press
+HOLD button, the LCD display "P" symbol,
the Auto Power Off function switch on. After no operation
for 5 minutes, the instrument switch off automatically.
Press
+HOLD again, then the "P" symbol disappears
from the display, the Auto Power Off function switch off.
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A button
button to exit read the
buzzer symbol disappears
Earth Resistance Clamp Meter
To switch off the instrument press the
3.
Symbol
When the battery service life is less than 20%,the symbol
is continual displayed, the clamp can not save the measured
value in memory in this case. When the batteries service life
is less than 15%, prompt beeps is continual emitted. After
10 beeps is emitted, the instrument switch off automatically.
4. NOISE Symbol
"NOISE" appears on the display indicate that an interference
current of testing earth resistance is too high, the resistance
measurement is not accurate.
5.
Symbol
This symbol indicates that the clamp is close incorrectly
and can not make a measurement.
6. WAIT Symbol
This symbol is shown on the display when the instrument
switch on and begin to auto-calibrate., it is from CAL 9 to
CAL 1 to calibration count.
7. OL Symbol
Measured resistance value exceeds 1200Ωor measured
current value exceeds 20A, this symbol is shown on the
display.
button for 2 seconds.
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