User manual
- Turn on the DMM using the rotary switch (13) and select the measuring range „A
„. The
display shows „A“ and the symbol for direct current „
„.
- In the direct current measuring range, a low current may be shown in the display due to the
high sensitivity and the ambient magnetic eld (i.e. the Earth‘s magnetic eld, etc.) even if
the clamp is closed. You must manually set the display to zero directly prior to each meas-
urement or when changing a power cable. Perform a zero adjustment without the conductor
and with the clamp closed. To do so, briey push the ZERO key. A beep sounds and the
display shows „ZERO“ to conrm the zero adjustment. Each time you push the ZERO key,
the display is zeroed. Push and hold the ZERO key for approx. 2 seconds to deactivate
this function. The display no longer shows the ZERO symbol. The device is now in normal
measurement mode without zero adjustment.
- Push the open lever (4) to open the current clamp.
- Heed the correct polarity of the clamp for direct current
measurement. The polarity symbols are visible on the
front and back of the clamp. When the connection is
correct, the cable leads from the current source (+)
through the front of the clamp to the load.
- Clamp the individual conductor to be measured and
reclose the clamp. Position the conductor in the middle
of the two triangular position symbols on the clamp.
- The display shows the measurement.
When in direct current measurement a minus sign „-“ precedes the measurement, the
current is traveling in the opposite direction (or the clamp is inverted).
- Remove the clamp from the measuring object and turn off the device after measurement.
Turn the rotary switch to „OFF“.