Step 1.
Before using the
PosiTest
HHD Verifier
, ensure that a proper ground is
established between the holiday detector and the verifier. Ensure that the ground
lead is plugged into the
PosiTest
HHD Verifier
and that the other end of the ground
lead is connected to the ground lead of the high voltage holiday detector that is
being verified.
Step 2.
Turn the
PosiTest
HHD Verifier
on by pressing and releasing the power
button . Once powered on, the verifier continuously monitors the voltage on the
probe end of the verifier. The verifier will update the display when the probe is
touching an exposed electrode of a holiday detector. The voltage displayed on the
verifier should match the voltage displayed by the detector within the combined
tolerance of both units.
2
3
Operating Instructions
Operating Instructions
Before using the
PosiTest
HHD Verifier
, ensure that a proper ground
is established between the holiday detector and the verifier.
IMPORTANT:
An icon on the
PosiTest
HHD Verifier
display will indicate if the detected
voltage is Pulsed DC
[PDC]
or DC
[DC]
.
NOTE:
u
For Pulse DC holiday detectors such as the
PosiTest
HHD,
the verifier probe
tip can be left connected to an exposed electrode indefinitely with no concern.
For best results, try to position the verifier probe perpendicular (90°)
to the electrode on the holiday detector.
u
For Continuous DC holiday detectors, the verifier probe tip should just be
briefly tapped against an exposed electrode to obtain a measurement. The
Verifier will not update the display if left in contact with a continuous DC power
source. The
PosiTest
HHD Verifier
display will not update properly if the
DC power source is adjusted while connected to the
PosiTest
HHD Verifier.
Prolonged contact with a continuous DC holiday detector may result in
overheating of the
PosiTest
HHD Verifier
probe.
The
PosiTest
HHD Verifier
is accurate to +/- 5% of the peak voltage presented to
the tip of the probe.
The
PosiTest
HHD Verifier
is shipped with a Certificate of Calibration showing
traceability to a national standard. DeFelsko recommends customers establish
calibration intervals based upon their own experience and work environment. A
detector used frequently, roughly, or in harsh operating conditions may require a
shorter certification interval than a gage used less frequently and handled with care.
Based on our product knowledge, data and customer feedback, a one year
certification interval from either the date of calibration, date of purchase, or date of
receipt is a typical starting point.
Accuracy, Calibration, and Adjustment
Accuracy, Calibration, and Adjustment
PROBLEM:
The
PosiTest
HHD Verifier
is displaying a voltage different than
observed on the holiday detector
The
PosiTest
HHD Verifier
is a Peak reading volt meter that can be used for both
Pulse DC and DC applications.
When used with Pulse DC type holiday detectors, it is important to maximize the
distance of the verifier tip to ground. This will reduce capacitive coupling to ground
of the high frequency DC pulse.
When used with a Continuous DC type holiday detector, the
PosiTest
HHD Verifier
will present a load to the holiday detector being tested and lowering of the output
voltage is likely. In such cases, repeated or slow contact with the electrode may
result in lower voltages being displayed on the
PosiTest
HHD Verifier
. Operation
on some DC holiday detectors may yield higher than expected results due to
specific detector design.
PosiTest
PosiTest
HHD Verifier
HHD Verifier
Troubleshooting
Troubleshooting
DO NOT use this equipment with high voltage power sources other
than high voltage holiday detectors. The
PosiTest
HHD Verifier
has been
specifically designed to work with high voltage holiday detectors that have limited
power output. Since the maximum power dissipation of the
PosiTest
HHD Verifier
is 12.5 watts, connection to high power, high voltage sources such as mains supply
WILL overheat and damage the
PosiTest
HHD Verifier
. DO NOT connect the
PosiTest
HHD Verifier
to an AC power outlet.
WARNING:
Battery compartment
Ground (earth) wire jack
Carabiner / wrist strap ring
A knot secures the Ground
(Earth) Wire to the ring
Securing the Ground Wire
Securing the Ground Wire