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Resistance Measuring - VOLTCRAFT VC135 Gebruiksaanwijzing

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Proceed as follows to measure DC currents "µA, mA, A"
AC current is not supported by this DMM. Do not attempt to measure AC currents
with this DMM.
Insert the red measuring lead into the 10 A max socket (10) if you are not sure about the size
of the current.
1. Turn the DMM on and select the measuring range "A
on the rotary switch (5) indicates the maximum measurement value of that selection. Try to start
measuring with the largest measuring range if possible, because the fine fuse will trigger in case
of excess current.
2. Insert the red measuring lead into the 10 A max socket (10) (with currents > 400 mA) or into the
mAμA socket (8) (with currents <400 mA). Plug the black measuring lead into the COM socket.
3. Now connect the two test prods in series with the object to be measured (battery, circuit etc.); the
display indicates the polarity of the measured value together with the currently measured value.
The unit of the measurement is µA, mA or A (depends on the measuring range selected).
As soon as a minus "-" appears for the direct voltage measuring in front of the measuring value,
the measured voltage is negative (or the measuring tips have been mixed up).
c) Resistance measuring
Make sure that all the circuit parts, switches and components and other objects of
measurement are disconnected from the voltage and discharged.
Proceed as follows to measure the resistance:
1. Turn the DMM on and select measuring range "Ω".
2. Insert the red measuring lead into the Ω socket (8) and the black measuring lead into the COM
socket (9).
3. Check the measuring leads for continuity by connecting both measuring leads to one another. After
that the resistance value must be approximately 0.5 Ω (inherent resistance of the measuring leads).
4. Now connect the measuring prods to the object to be measured. As long as the object to be
measured is not high-resistive or interrupted, the measured value will be indicated on the display.
Wait until the display has stabilised. With resistances of >1 MΩ, this may take a few seconds.
5. As soon as "1" (towards the left side of the display) appears on the display, you have exceeded
the measuring range or the measuring circuit has been broken. Select a larger measuring range
if necessary.
6. After measuring, remove the measuring leads from the measuring object and turn the DMM off.
Turn the rotary switch (5) to the position "OFF".
" with the rotary switch (5). The values
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Deze handleiding is ook geschikt voor:

Vc155

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