OPERATION INSTRUCTION
Data Hold Mode
Press the
ʺ
ʺ
Button to hold the present reading on the display, the symbol "
" will appear on the display as an
indicator.
To exit the Data Hold mode, just press this button again "
" disappears.
Manual Ranging and Autoranging
The meter defaults to autorange mode in measurement functions which have both autorange mode and manual range mode.
When the meter is in the autorange mode, "AUTO" is displayed.
1. Press the
"RANGEʺ
button to enter the manual range mode "AUTO" disappears.
Each press of the
"RANGEʺ
button increments the range. When the highest range is reached, the meter wraps to the
lowest range.
2. To exit the manual range mode, press and hold down the
"RANGEʺ
button for about 2 seconds. The meter returns to the
autorange mode and the symbol "AUTOʺ is displayed.
MAX Mode
Press the "
ʺ
Button to enter the MAX mode, the symbol "
" will appear on the display as an indicator. ln this mode,
the display shows the maximum reading of all readings taken since this mode is activated. To exit the mode, just press the
"
ʺ
button again,"
ʺ will disappear.
Note:
ln some functions, the MAX mode is not available.
Measuring DC or AC Voltage
1. Connect the black test lead to the "COMʺ jack and the red test lead to the "INPUT" jack.
2. Set the range switch to the position for dc voltage measurements or to the position for ac voltage measurements.
3. Select auto range or manual range mode with the
ʺRANGE"
button.
ln manual range mode, if the magnitude of the voltage to be measured is not known beforehand, select the highest range
first and then reduce it range by range until satisfactory resolution is obtained.
4. Connect the test leads across the source or circuit to be measured.
5. Read the reading on the display. For DC voltage measurements, the polarity of the red test lead connection will be indicated
as well.
Note:
1. ln a small range, the meter may display an unstable reading when the test leads have not been connected to the circuit to
be measured. lt is normal and will not affect measurement.
2. ln manual range mode, when the meter shows the overrange indicator "OLʺ, a higher range should be selected.
3. To avoid damage to the meter, don’t measure a voltage higher than 250V DC/AC.
Measuring DC or AC Current
1. Connect the black test lead to the "COM" jack. If the current to be measured is less than 200mA, connect the red test lead
to the "INPUT" jack. If the current is between 200mA and 10A, connect the red test lead to the "10A" jack instead.
2. Set the range switch
µ
,
or
range.
3. Press the
"FUNC."
button to select DC current or AC current measurement, the display will show the corresponding
symbol.
4. Select autorange or manual range mode with the
"RANGEʺ
button.
5. Tum off power to the circuit which you want to measure. Discharge all high voltage capacitors.
6. Break the circuit path to be measured, connect the test leads in series with the circuit.
7. Turn on power to the circuit and then read the display. For DC current measurements, the polarity of red lead connection
will be indicated as well.
Note:
1. If the magnitude of the current to be measured is not known beforehand, select the highest range and then reduce it range
by range until satisfactcry resolution is obtained.
2. When the display shows the overrange indicator "OL", a higher range has to be selected.
Measuring Current
1. If you want to measure DC current, you must use the DC clamp. If you want to measure AC current, you must use the AC
clamp.
2. Connect the negative (-) output lead of the selected damp to the "COMʺ jack, connect the positive ( + ) output lead of the
clamp to the "INPUTʺ jack.
3. Set the range switch to
position.
4. Select DC current or AC current measurement with the "
FUNC.
ʺ button.
5. Select autorange or manual range mode with the
"RANGEʺ
button.
ln manual range mode, if the magnitude of the current to be measured is not known beforehand, select the highest range.
6. Clamp the circuit to be measured with the clamp.
Note:
Each time only one cable should be clamped and the cable should be in the center of the clamp jaws.
