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c) Current Measurement “A“ at VC265
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Do not exceed the maximum permitted input values. Do not touch any circuits or
parts of circuits if there could be voltages higher than 50 V ACrms or 75 V DC present
within them. Danger to life!
The voltage in the measuring circuit may not exceed 600 V.
Measuring >5 A may only be performed for max. 10 seconds and at 15 minute inter-
vals.
Always start current measurements at the highest measurement range and switch down to lower ranges
if necessary. Before changing the measurement range, always shut off the circuit. All current measuring
ranges are secured with fuses and thus protected against overload.
Proceed as follows to measure DC voltages (A ):
- Switch on the DMM and select measuring range “A ”.
- The table shows the different measuring functions and possible measuring ranges. Select your mea-
suring range and the respective measuring jacks.
Measuring function VC265 Measuring jacks
µA <4000 µA COM + mAµA
mA 4000 µA – 399 mA COM + mAµA
A 400 mA – 10 A COM + 10A
- Insert the red measuring line into the mA µA or 10A measuring jack. Plug
the black measuring lead into the COM measuring jack.
- 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.
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When a minus “-” appears in front of the measured value when
measuring DC, the measured voltage is negative (or the mea-
suring lines have been mixed up).
- After measuring, remove the measuring lines from the measured object
and turn the DMM off.
Proceed as described above to measure alternating currents (A ):
- Switch on the DMM and select measuring range “A ”. Press “SELECT” to switch to the AC measu-
ring range. “AC” appears in the display. Pressing this button again, takes you back etc.
- After measuring, remove the measuring lines from the measured object and turn the DMM off.
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Do not measure any currents above 10 A in the 10 A range and no currents above 400
mA in the mA/µA range, otherwise the fuses trigger.
