Description
DESCRIPTION
The new ground testing instrument family from Megger offers a unique
solution to your ground rod testing needs. The four models comprise
a digital 3-terminal instrument for grounding and bonding tests, a
digital 4-terminal model that adds resistivity measurement, an
analog 3-terminal model, and a revolutionary new 3-terminal tester
that adds a current measuring function for ART (Attached Rod
Technique) testing capabilities. With this added function, on-site
grounds can be tested separately without having to remove the
utility connection.The complete kit
of instrument, test leads, stakes, batteries and calibration
certificate are delivered in a tough
polypropylene carry case — everything you need to start testing in
one package. (Certificate not included with
analog model.) Optional terminal adapters are available for
acceptance of a variety of test leads.
All models are rated to IP54, making them
truly outdoor instruments. The ground testers have been designed to
be easy to use – a large selector switch makes selection of 2-pole,
3-pole or 4-pole (DET4TD) tests easy with gloved hands – and the
design makes the fitting of shorting links to perform 2-pole tests a
thing of the past. A large, clear, easy to read LCD or analog
(DET3TA) display and thumb sized test button also make the
instruments particularly well suited to the outdoor conditions of
ground testing. In addition to this ease of use, the ground tester
automatically checks the connection and condition of the P spike, C
spike, and also the level of ground noise, indicating the status on
the display. (The analog model allows the operator to check the
condition of the spikes.)
The instruments also include a voltmeter to
enable measurement of ground voltage. The testers can measure
resistance from 0.01 ohm to 2000 ohms and earth voltages up to 100V.
To allow accurate testing in noisy
environments, the instruments are capable of rejecting noise of up
to 40V peak to peak.
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