C) Current Measuring "A - VOLTCRAFT VC880 Bedienungsanleitung

c) Current Measuring "A"

Do not exceed the maximum permitted input values. Do not touch any circuits or parts of circuits
if they may be subject to voltages higher than 25 V ACrms or 35 V DC! Danger to life!
The maximum permissible voltage in the measuring circuit may not exceed 1,000 V in CAT III.
Measuring >5 A must only be performed for max. 10 seconds and at 10 minute intervals.
IAlways start current measurements at the highest measurement range and switch down to lower ranges
if necessary. Before changing the measurement range, always power down the circuit. All current mea-
suring ranges are secured with fuses and thus protected against overload.
Proceed as follows to measure direct currents (A
- Switch on the DMM and select measuring range "A".
- The table shows the different measuring functions and possible
measuring ranges. Select your measuring range and the respec-
tive measuring jacks.
Measuring function Measuring range
µA
mA
10A
- Insert the red measuring line into the mAµA or 10A measuring
jack. Plug the black measuring line into the COM socket.
- 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.
When a minus "-" appears in front of the measured value when measuring direct current, the current has
the opposite direction (or the measuring lines have been swapped).
- After measuring, remove the measuring lines from the measured object and turn off the DMM.
Proceed as described above to measure alternating currents (A
- Switch on the DMM and select measuring range "A". Press the "SHIFT/SETUP" (3) button to switch to the AC
measuring 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 off the DMM.
Never 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.
Measuring jacks
0.01 µA - 4000 µA COM + mAµA
0.001 mA - 400 mA COM + mAµA
0.001 A - 10 A COM + 10A
):
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