Power Supply; Installation - HT HTFLEX3003 Manual De Instrucciones

3. POWER SUPPLY

HTFLEX3003 transducer requires two 1.5V type AA MN1500 LR6 alkaline batteries for
operation. The battery compartment is accessed from the rear of the electronics enclosure.

4. INSTALLATION

The current probe was designed to allow the operator to connect this measurement device
around a conductor without disconnecting the conductor as many CTs presently require.
Even though the current probe output is AC, there are instances where the user will want
to orient the transducer so that proper polarity will exist at the output terminals. This is
done by installing the transducer around the conductor with the molded-in arrow on the
latch (see Fig. 3) pointing in the direction of conventional current flow. Conventional
current flow is defined as current flowing from the generator to the load.
When a three phase plant is under test, the correspondence between volt probe of
measuring instrument connected and clamp measuring the same phase must be respected.
Please refer to phase labels (I1, I2, I3) present on flexible clamps and interconnection
cables.
HTFLEX3003 must be installed with the interconnection cable on the outside of the loop
when the latch is engaged. The polarity arrow, the double insulation, and the warning
symbols will all be on the outside of the loop. It should also be noted that the current probe
would produce twice the output voltage if you wrap the transducer around the conductor
twice.
If the current flowing in the cable clamped is unknown, select on the clamp the range
3000A. If the current value found could be measured with the lower range, select the 300A
range due to obtain more accurate measurement.
There is minimal shock hazard using a HTFLEX3003 current probe. Each transducer has
been Hi-Pot tested to several thousand volts with no voltage breakdown. This particular
characteristic allows high-current measurement (with a wide frequency bandwidth) of
conductors at less than 1000V∼ potential to earth.
Hazardous potentials may exist closest the desired current measurements. Use
locally approved safety procedures when working near hazardous potentials. It
is recommended to de-energize the installation before installing clamps
around a live bus and always use appropriate gloves and/or equipment
approved for working around hazardous potentials when installing the clamp
closest these hazardous potentials.
Do not exceed the minimum bending radius of the HTFLEX3003 current transducer when
installing the transducers around the conductors. Exceeding the bending radius will degrade
the measurement accuracy.
CAUTION
EN - 6
HTFLEX3003