Description; Operating Procedure; Switching On; Dc Zero Adjustment - Chauvin Arnoux PAC 12 CVH Mode D'emploi

See descriptive diagram at the end of the User Manual.
Passage of the conductor
Jaws
Protective non-slip guard
Automatic zero DC button
Red fault light (over range / incorrect zero adjustment)
Green light indicating correct power supply
3-position sliding switch (off / selection of 1 mV/A or 10 mV/A ranges)
Hand-held parts
Fitted lead 1.5 m
BNC plug

3.1/ SWITCHING ON

Set the sliding switch to the appropriate position, 40 A range (sensitivity 10 mV/A) or 400 A
range (sensitivity 1 mV/A). Correct operation is indicated by a green light
the battery is in good condition.
After approximately 10 minutes of operation of the clamp without manipulation of the
control buttons, the power supply cuts off automatically (see " Auto off " below).
If this green indicator does not come on when the clamp is switched on, or goes out
before it has operated for 10 minutes, it is necessary to replace the battery (see
MAINTENANCE chapter).

3.2/ DC ZERO ADJUSTMENT

Ensure that the jaws of the clamp are correctly closed and that they do not enclose any
conductor. Connect the clamp to your measurement instrument. Press the auto zero
button . The red light
instrument is on zero calibration. If zero can not be obtained, this indicator light remains
lit to indicate the fault.

3.3/ MEASUREMENT

After having switched on the clamp, connected it to the measurement instrument on the
appropriate range, and followed the auto zero procedure (see the two paragraphs above),
clamp the conductor to be measured
On DC current measurement, ensure that the arrow located on the external edge of
the jaws corresponds to the direction of the current flowing in the conductor
(source ⇒ receiver).

2/ DESCRIPTION

3/ OPERATING PROCEDURE

comes on for approximately three seconds to indicate that the
between the jaws of the clamp.
1 2
indicating that