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Portable 2000 count digital multimeter
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3.3 Continuity sound test
Connect the leads to the multimeter (COM and Ω terminals) and to the
circuit or the component to be tested.
Position the selector switch on the continuity sound function :
The audible beep stops when R > 750 Ω.
Protection : <
600 Vrms.
Output voltage on open circuit : < 2 V
3.4 Diode test
With this function, it is not only possible to test classic diodes, but also
LED’s or any other semiconductor in which the junction corresponds to a
direct voltage less than 3 V.
Connect the leads to the multimeter (COM and terminals) and to
the circuit or component to be tested.
Position the selector switch on the « » function :
ª in forward bias, the display gives the value of the junction in V
(resolution 1 mV)
- accuracy : ± 2 % R ± 15 mV
- voltage on open circuit : 7 V typical
- short circuit current : 0.4 mA
ª in reverse bias, the display indicates the open circuit voltage (> 2 V).
Memorise, if necessary, by pressing the « MEM » key.
For measurements > 2 V, press the « RANGE » key.
Protection : <
600 Vrms.
3.5
Battery test
Position the selector switch on function « » diode.
Remove the leads from the input terminals.
Press the « RANGE » key. If the display indicates « < 4 V », only few
hours battery life remain until « BAT » (battery discharge indicator) is
displayed.
) The displayed value corresponds to the battery voltage -2 V.
3.6 Current measurement (with clamp, optional)
Connect the leads of the clamp to the terminals of the multimeter
[V (clamp) and COM].
Position the selector switch on function clamp « ».
Input impedance > 10 MΩ
Overload : the beep sounds and « 1 » blinks.
Memorise, if necessary, by pressing the « MEM » key.
Multimeter Clamp
Range 0 to 200 A (*) 0.5 to 200 A
AC
Resolution 0.1 A / 10 mV Ratio I/O : 100 mV
DC
/ 1 A
AC
Accuracy ± 1 % R ± 4 digits typical 2 %
Protection 600 Vrms
(*) Never perform any current measurement without clamp.
Never test a diode on a live circuit.
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