To set or cancel the mode of data holding:
1. Press “HOLD” key once, the current read value will
be kept on display, and in the mean time the “
”
symbol will be displayed on LCD.
2. Press “HOLD” key once more to return the mode of
the meter to the normal measuring mode.
3.1.2 Energy-saving function of the battery
The meter will automatically turn off the power 30 minutes
after it is turned on, so that the energy of the battery is
saved.
3.2 Instructions for measurement
3.2.1 Measuring AC and DC voltages
Do not measure voltages higher than DC 1000V
or AC 750V (effective value), to prevent electric
shock and/or damaging the meter.
Do not apply voltages higher than DC 1000V or
AC 750V (effective value) between the common
terminal and earth to prevent electric shock
and/or damaging the meter.
Voltage is the difference of potentials between two points.
The polarity of AC voltage changes with time, while that of
DC voltage does not change.
The ranges for DC voltage of this meter are: 200.0mV,
2.000V, 20.00V, 200.0V, and 1000V; The ranges for AC
voltage are: 2.000V, 20.00V, 200.0V, and 750V.
9
To measure AC or DC voltages:
1. Switch the rotary switch to a proper position.
2. Connect the black measuring tip and the red
measuring tip to the input socket of COM and the
input socket of V, respectively.
3. Measure the voltage of the circuit to be tested with the
other ends of the test tips (which are in parallel with
the circuit to be tested)
4. Read the measured voltage from LCD. When
measuring DC voltages, the display will also output
the polarity of the voltage on the red measuring tip.
Attention:
With the measuring ranges of DC 200mV and AC 2V,
the meter will display a certain value even though the
measuring tips are not connected. In this case, short out
the “V
－
Ω
” and “COM” ends for a second to make the
displayed value of the meter to zero.
3.2.2 Measuring resistance
To prevent the meter or the equipment to be tested
To prevent the meter or the equipment to be tested
To prevent the meter or the equipment to be tested
To prevent the meter or the equipment to be tested
from being damaged, always turn off all power
from being damaged, always turn off all power
from being damaged, always turn off all power
from being damaged, always turn off all power
supplies of the ci
supplies of the ci
supplies of the ci
supplies of the circuit to be tested and
rcuit to be tested and
rcuit to be tested and
rcuit to be tested and
discharge all high
discharge all high
discharge all high
discharge all high----voltage capacitors before
voltage capacitors before
voltage capacitors before
voltage capacitors before
measuring resistance.
measuring resistance.
measuring resistance.
measuring resistance.
Resistance is a measure of the impedance related with
current. The unit of resistance is Ohm (
Ω
).
The ranges for resistance of the meter are: 200.0
Ω
,
2.000k
Ω
, 20.00k
Ω
, 200.0k
Ω
, 2.000M
Ω
, and 20.00M
Ω
.
To measure resistance:
1. Set the rotary switch at the proper position.