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4. Operating instruction
4.1 Data hold
If you need data hold when measuring, you can put on
“H-D”; it will hold the reading; if you put the button again,
data hold is not continue.
4.2 Relative transform
Put down the "REL." when measuring the AC voltage
range, DC voltage range, and capacitance range. Meter
will be transformed at relative measuring, the initial
display will show ”000”. Press the "REL" again, meter
will recover the normal working condition.
4.3 Hz/duty transform
Put down the "H/D." when measuring the Hz range.
Meter will be transformed at DUTY range. Press the
"H/D" again, meter will recover the Hz range.
When measuring the voltage range, put down the "H/D"
and change to the Hz range. The frequency of the signal
for the voltage is measured now.
Press the "H/D" again and change to the DUTY range.
The DUTY CYCLE of the signal for the voltage is
measured now. Press the "H/D" again, meter will be
back to the condition of the voltage measuring. The
range of voltage is locked under this condition. The
locking condition can be cancelled by rotating the
transform switch.
4.4 Auto power off
If no operation within fifteen minutes after power is on,
meter will auto power off with five short sounds and one
long.
After auto power off, if stir the transform switch or put
down any button of "H-D”, “REL”, “H/D”, meter will
recover the working condition.
4.5 Preparation for measurement
4.5.1 Stir the transform switch. If the battery voltage is
less than 2.4V, display will show “ ”, the battery
should be changed at this time.
4.5.2 The “ ” besides the input lead shows that the
input voltage or current should be less than specification
on the sticker of the meter to protect the inner circuit
from damaging.
4.5.3 Select a transform switch accordingly for the item
to be measured.
4.6 Measuring ac voltage
4.6.1 Set the transform switch at the AC V range position.
4.6.2 Connect test leads across the source or load under
measurement.
4.6.3 You can get reading from LCD.
NOTE:
1. “ ” means you can’t input the voltage which more
than 600V DC or 600V rms AC, it’s possible to show
higher voltage, but it’s may destroy the inner circuit.
2. Pay attention not to get an electric shock when
measuring high voltage.
4.7 Measuring dc voltage
4.7.1 Set the transform switch at the DC V range position.
4.7.2 Connect test leads across the source or load under
measurement.
4.7.3 You can get reading from LCD. The polarity of the
red lead connection will be indicated along with the
voltage value.
Pocket Digital Multimeter
Pocket Digital Multimeter
