Amprobe ACF-3000DM-A Current Transducer - Manual (Page 7)

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The A C F - 3 0 0 0 D M - A was designed to allow the operator to connect this mea-
surement device around a conductor without disconnecting the conductor as
many CTs presently demand. The Flexible AC Current Transducer is installed
around the conductor with the molded-in arrow on the latch (Fig. 4) pointing in
the direction of conventional current flow. Conventional current flow is defined
as current flowing from the positive to the negative potential, or in case of A C
current the arrow should face the load.
The Flexible AC Current Transducer must be installed with the interconnection
cable on the outside of the loop when the latch is engaged. The polarity
a r r o w, the double insulation, and the warning symbols will all be on the out-
side of the loop.
There is minimal shock hazard using the ACF-3000DM-A, as the transducer
does not generate high voltages at low frequencies. Each transducer has
been Hi-Pot tested to several thousand volts with no voltage breakdown. T h i s
particular characteristic allows high-current measurement (with a wide
frequency bandwidth) of conductors at less than 600VAC potential to earth.
Do not exceed the minimum bending radius of the Flexible AC Current Tr a n s-
ducer when installing the transducer around the conductor. Exceeding the
bending radius will degrade the measurement accuracy.
Make sure the Flexible AC Current Transducer and its output cable are clean
before installing them around the conductor. If the transducer and cable are
not clean, the contaminants on them may provide a conductive path for a
high-voltage breakdown. Also, check the transducer and output cable for cuts
and abrasions. Do not use the transducer if damaged.
To measure AC current, open the A C F - 3 0 0 0 D M - A by squeezing the latch,
encircle the conductor to be measured, then snap the A C F - 3 0 0 0 D M - A e n d s
together (Fig. 4). Select desired amps range using the switch on the side of
the electronics package (Fig. 2).