MEGABRAS MTD-20KWe, Руководство пользователя

Страница: 4 / 40

6
1. Description
The MTD-20KWe digital earth tester allows for the measurement of Earth
Resistances and Soil Specific Resistivity, and also the spurious voltages
caused by parasitic voltages present in the soil.
This equipment is suitable for fast and easy measurement of the grounding
resistance in house and industrial buildings, hospital installations, lightning
rods, antennas, substations, etc. Soil resistivity measurement allows for soil
stratification in order to optimize the most complex grounding systems
engineering. Its state-of-the-art system of active and passive filters provides
it with high immunity to electric interferences, making it possible to obtain
reliable measurements even in the presence of spurious voltages, such as
the ones that can be found in some urban areas and near primary
substations.
It has an audible signal which advises the operator when the generated
current is not enough to carry out reliable measurements. Due to the fact
that it may not be noticed, this alarm also prevents further testing.
Because of its wide range of measurement (from 0.01
Ω
up to 20 k
Ω
), this
equipment allows for reliable testing in all kinds of soils, including those that
offer very high resistivity. The use of this instrument is very simple, it has a
high-visibility 3½ - digit display with direct readings, even under sunlight.
This earth tester is supplied with a rechargeable internal battery. The smart
charger is microprocessor-controlled, and can be powered from a 12 V car
battery (or a similar one).
It has a sturdy, easy and safe to carry cabinet, with IP54 protection level. It
is suitable to work under adverse geographical and environmental
conditions, with extreme temperatures in cold or tropical regions and in high
mountain areas, showing a reliable performance in the field.