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Idiomas disponibles
Idiomas disponibles
4000- and 6000-count TRMS digital multimeters
3.
USE
3.1
First use
Place the batteries in the device as follows :
1.
Use a screwdriver, unscrew all the battery cover screws on the back of the meter.
2.
Place the batteries in the casing, respect polarity.
3.
Screw back battery cover screws.
It is recommended to follow this procedure when you use the meter for the first
time, or after long time without use:
Start the meter, make sure that all
segments are displayed.
Check that on Continuity position, and
without any input the meter display OL.
Take out both cords and short circuit,
the beeper should sound.
Turn the rotary switch on V and check a
known voltage (for example a battery)
and make sure voltage is correct.
When all the steps above are correct,
you can start to use the meter.
3.2
Backlight and Torch light
When pressing the
key for more than 2s, both LCD backlight (blue) and torch light
(white) will light up.
Press again
for more than 2s to shutdown the backlight.
On NCV position the backlight will blink red if AC live voltage is detected.
3.3
Measuring AC or DC voltages
The meter measures AC or DC voltage. To minimize risk when measuring an
unknown voltage, make sure to measure both AC and DC voltage
1.
Turn the rotary switch to
2.
Toggle between AC or DC voltage measurement by pressing the yellow
button (in VlowZ : only AC measurement available).
3.
Connect the red test lead to the + terminal and the black test lead to the COM
terminal.
4.
Measure the voltage by touching the probes to the desired test points of the
circuit:
MTX 203 VAC or DC
To avoid to measure ghost voltage, choose
Low Z (500 kΩ).
17
English
(10 M),
(500 k).
MTX 203 VLowZ
, impedance of the DMM is lower in
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