MD 9235 Clamp Meter Series
Operation
8
CAUTION (Application and removal of the Clamp-on meter)
For non-invasive ACA current measurements, press the jaw trigger and clamp the jaws
around only one single conductor of a circuit for load current measurement. Make sure
the jaws are completely closed, or else it will introduce measurement errors. Enclosing
more than one conductor of a circuit will result in differential current (like identifying
leakage current) measurement. Locate the conductor(s) at the Jaws center as much as
possible to get the best measuring accuracy. For removal, press the jaw trigger and
remove the jaws from the conductor(s).
Adjacent current-carrying devices such as transformers, motors and conductor wires will
affect measurement accuracy. Keep the jaws away from them as much as possible to
minimize influence.
Peak-rms
mode
Peak-rms
compares and displays the maximum RMS value of surge voltage or
current with durations as short as 65ms. When ACV or ACA function is auto-selected or
manual-selected, press and hold
Peak-rms
button for one second or more toggles to
this
mode. The annunciators “P-” “Max”
turn on. APO (Auto Power Off) feature is
disabled automatically accordingly.
In ACA function, the Peak-rms
mode starts at the highest 600A range to maximize
measuring dynamic range. Before making measurement, press the
Peak-rms
button
momentarily again can manually select thru lower measuring dynamic range 400.0A or
40.00A for higher measuring resolutions.
