Ground Resistance Tester

Product Description
Hengfeng ground resistance tester is a high-precision test instrument used in
various fields such as substations for testing grounding resistance and related
parameters.
The instrument has the characteristics of lightweight, small dimensions,
convenient carrying, strong anti-interference performance and high accuracy. It
is an integrated structure, built-in variable frequency power supply module,
and the output power supply is continuously variable frequency adjustable. The
frequency of 45-55Hz can be switched for measurement, and there are several
groups of double frequency conversion for choice,and the built-in high-speed
processor core adopts high-end digital filtering technology, which effectively
avoids the interference of the power frequency electric field to the test, and
fundamentally solves the problem of accurate measurement under strong electric
field interference.
A large number of on-site tests and user usage indicate that when the grounding
grid is tested under the harsh electromagnetic environment of the running
substation, the measured data of the grounding impedance tester of the special
frequency ground network are accurate and repeatable. It is an ideal instrument
for the measurement of the characteristic parameters of large and medium
grounding grids.
Ground Resistance Tester Features
1. HD color touch screen. The instrument is equipped with a high-end full-touch
liquid crystal display, a large and full graphical operation interface, each
process is very clear, and the operator can use it without additional
professional training. The entire process can be measured with a single touch,
making it an ideal smart measurement device.
2. Spare stylus pen. When the operators have dirt on their hands or dirt on the
screen, the stylus pen can be used to operate the instrument.
3. Double frequency conversion,strong anti-interference ability. The instrument
adopts the method of different frequency measurement, and with modern software
and hardware filtering technology, the instrument has high anti-interference
performance, and the test data is stable and reliable.
4. The precision of measurement is high. The basic error is only 0.005 Ω,
which can be used to measure the earth network with very small earth impedance.
5. Powerful function. It can measure current stake, voltage stake, grounding
grid impedance, grounding resistance, grounding conduction, soil resistivity,
step voltage, touch voltage, potential gradient and so on.
6. Transmission tower vector shunt function.The instrument automatically
subtracts the current that is transferred by the tower to calculate more
accurate test results.
7. Built-in 1500 Ω imitate human body resistance, when testing step voltage
,users can get the real step voltage data and curve.(optional)
8. All English menu, easy to operate.
9. Simple wiring ,no high current cable is needed.

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