VOLTCRAFT VC281 TRMS Bedienungsanleitung Seite 57

Perform the current measurement in the mAµA measurement range as quickly as possible. Continuous
measurements are to be avoided. The PTC technology heats the protective components in the measure-
ment circuit with increasing current strength or measurement duration. Consequently, the internal resist-
ance increases and the current flow is limited. Please take this into account when performing series of
measurements.
An optical and acoustic alarm are triggered when the measurement range is exceeded.
If the PTC fuse has been triggered (steadily declining measurement indicator, "OL" or alarm), stop the
measurement and switch the DMM off (OFF). Wait for approx. 5 minutes. The self-resetting fuse cools
down and then functions again.
Proceed as follows to measure direct currents (mA/µA
- Switch the DMM on and select "mA" or "µA" mode.
- The table shows the different modes and potential measurement ranges. Select the measurement range and cor-
responding measurement sockets.
Measurement mode
µA
mA
- Insert the red test lead into the mA µA measurement socket. Insert the black test lead into the COM measurement
socket.
- Connect the two measuring probes (de-energised) in series to the object that you want to measure (e.g. battery or
circuit). The electrical circuit must be disconnected before you connect the probes.
- Reconnect the circuit. The measurement will appear on the display.
- After measuring, disconnect the circuit and remove the test leads from the measured object. Switch the DMM off.
Measurement range
0 - 6000 µA
0 - 600 mA
):
Measurement sockets
COM + mAµA
COM + mAµA
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