Megger Detex 510836 Series, Инструкция по эксплуатации

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Section 6
Description and Operation
of the
Piezo Verifier
DESCRIPTION
The Piezo Verifier, Cat. No. 510005, consists of a piezo electric generator
of very small dimensions enclosed in a case of insulating material. It is used
to verify the correct operation of voltage detectors and phasing testers that
do not have a self-testing capability.
On the base of the verifier is a small metal contact designed to be
connected to the object under test. A socket on the side is provided for
making a connection to ground or for testing a closed circuit with the test
lead supplied. The mechanism is operated by squeezing the molded handle.
The output is approximately 1800 V when the handle is squeezed at the
prescribed rate of three times a second.
WARNING
Although the output of the verifier is not lethal,
the jolt that could be received is sufficient to
cause an involuntary muscle spasm. Care must
be taken to avoid contact with the output
terminal, particularly when working on ladders
or in a situation where such a reaction could be
dangerous.
It is important that the verifier be used in the same lighting conditions as
those at the actual test site. A carrying case is provided for protection of the
instrument and for storage of the test lead.
OPERATION
To Check LED Voltage Detectors
To check a LED voltage detector, the contact point on the verifier should
be contacted either to the test terminal on the side of the detector head or
to the forked tip of the detector, as shown in Figure 5. The LED voltage