Product Features; Description - AEMC 6470-b User Manual

CHAPTER 2

PRODUCT FEATURES

2.1 Description

The Digital Ground Resistance Tester Model 6470-B is a portable measurement
instrument designed to measure Ground Resistance, Soil Resistivity (two methods
– Wenner and Schlumberger), Bonding Resistance (DC Resistance 2-Wire and
4-Wire Kelvin sensing) and Earth Coupling resistance. This direct reading tester
measures from 0.01 to 99.99kΩ and is auto-ranging, automatically seeking out the
optimum measurement range and test current.
Easy-to-use – simply connect the leads, select the test mode, press Start and read
the results. Up to 512 test results can be stored in internal memory for later recall
to the display or downloaded to a PC via DataView software.
®
The large LCD is easy-to-read and indicates ground electrode resistance, test
voltage, current and frequency as well as individual electrode resistance, battery
status and more.
The Model 6470-B is CAT IV rated to 50V and is over voltage protected to more
than 250V against accidental connection to live circuits. The voltage is also dis-
AC
played on screen. In the event of a system fault, the Model 6470-B can withstand
250V .
AC
Additional features of the Model 6470-B include a heavy-duty field case sealed
against dust and water when closed (the test button is also sealed against the
elements); manual and automatic test frequency selection from 40 to 513Hz; user
selectable 3-Pole (3-Point) Fall of Potential or 4-Pole (4-Point) Soil Resistivity test
methods and user selectable 2-Wire or 4-Wire Bond Resistance test method.
The Model 6470-B is powered by 9.6V, 3.5 Ah NiMH rechargeable batteries. An
external recharger powered from 120/230V 50/60Hz is included and provides for
testing while recharging. The Model 6470-B can also be vehicle powered from an
optional 12V battery adapter.
The Ground Resistance Tester Model 6470-B is rugged, easy-to-use and ideal for
maintenance crews performing numerous tests. It exceeds mechanical and safety
specifications for shock, vibration and drop tests per IEC standards. The adjust-
able test frequency provides for rejection of high levels of interference, allowing it
to be used under difficult conditions such as high stray currents that normally affect
accuracy.
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Ground Resistance Tester Model 6470-B
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