®
®
13
Apply the Fork-clamp around conductor(s) of only one single pole
of a circuit for load current measurements. Applying around
conductors of more than one pole of a circuit may result in differential
current (like identifying leakage current) measurements. Align the
conductor(s) to theF
ork-clamp center indicators as much as possible
to get the best measuring accuracy. For removal, remove the Fork-
clamp from the conductor(s).
Adjacent current-carrying devices such as transformers, mo tors and
conductor wires may affect measurement accuracy. Keep the Fork-
clamp away from them as much as possible to minimize influence
during measurements.
This Fork-clamp meter series is designed to die
r ctly apply a round
or remove from uninsulated hazardous live conduc tors. But still,
individual protective equipment must be used if hazardous live
parts in the installation where measurement is to be carried out
could be accessible. Do not u se the meter to measure currents
above the rated frequency (400Hz). Circulating currents may cause
the magnetic circuits of the F
ork - clamp reach a hazardous
temperature.
Current Measurments: Application & Removal Of The Fork-clamp
WARNING
Note:
ACV
and
Line-level
Hz
functions are bundled with LPF low-
pass filter, and are capable of dealing with most
VFD
(Variable
Frequency Drives) signals. It also improves reading stability in noisy
electrical environments.
DCV
Inputs are made via the test lead terminals COM/+.
14
Input is made via the Fork-clamp where best accuracy is spec i fi ed
at the center indicator area.
Fork-clamp ACA
Ω
TM
TM
Inputs are made via the test lead terminals
COM/+
. Defaults at
Ω
Resistance
. Press the
SELECT
button momentarily to select
the subject functions in sequence.
Resistance, BeepLit Continuty, & BeepLit
Diode
