The ERT-S is excellent at measuring earth resistance, with features such
as two or three point earth resistance measurement, ‘utility’ method and
a massive battery life. This is one of the most accurate testers in the
market with a 0.01 ohm to 50kohm measuring range. Its sensitivity is
second to none; using the ‘Wenner’ method of soil resistivity
measurement, coupled with an automatic warning for excessive
resistance between test spikes and earth, this tester will keep you safe
and ensure your test results are sound. Marry this with a huge memory,
an internal memory capacity of 2000 measurements and you have a
powerful machine which is light-weight enough to handle all day. Finally
the ERT-S also enables RS232 downloads to both a PC and printer.
method measurement
Unlike other testers the ERT-S can carry out
earth resistance ‘utility’ method measurement
and, using a special clamp
You can store up to 2000 test results in the
ERT-S which can then be downloaded to a PC
for analysis and storage
The ERT-S is one of the most accurate testers
in the market and is able to measure up to
50,000ohms
The ERT-S is light and hand-held making it easyto use in any location
Earth Resistance
2, 3 And 4 WIRE METHOD
Measuring Range 0 - 19.99ohms Resolution 0.01ohms
20.0 - 199.9ohms Resolution 0.1ohms
200 - 999ohms Resolution 1ohms
1.00Kohm - 9.99 Kohms Resolution 10ohms
10.0Kohm - 50.0ohmsResolution 100ohms
Measuring Frequency 125 Hz ± 1 Hz
Measuring Current <20mA effective
Measuring voltage < 50V effective sine wave
Distortion max 5V pp/50 Hz
Accuracy ± 2% + 2 digits
Earth Resistance Utility Using Clamp Meter
Measuring Range 0.5 - 19.9ohms Resolution 0.1ohms
20 - 999ohms Resolution 1ohms
1.00Kø - 2.00Kohms Resolution 10ohms
Measuring Frequency 125 Hz ± 1 Hz
Measuring Current <20mA effective
Measuring Voltage <50V effective sine wave
Distortion max 5V pp/50 Hz
Accuracy ± 5% + 2 digits
Specific Earth Resistance
Measuring Range 0 - 19.99 Mohms Resolution 0.01Mohms
20 - 199.9Mohms Resolution 0.1Mohms
200 - 999Mohms Resolution 1Mohms
1.0Kø - 9.99Kohms Resolution 10Mohms
10.0K - 99.9Kohms Resolution 100Mohms
100K - 1999 Kohms Resolution 1000Mohms
Accuracy ± 2%
General
Dimensions 110 x 65 x 290 mm
Display 31/2 digit LCD
Memory 500 memory locations
Communication RS232 serial 4800 Baud