Soil resistivity measurements have a threefold purpose.

First, such data are used to make sub-surface geophysical surveys as an aid in identifying or locations, depth to bedrock and other geological phenomena.

Second, resistivity has a direct impact on the degree of corrosion in underground pipelines. A decrease in resistivity relates to an increase in corrosion activity and therefore dictates the protective treatment to be used.

Third, soil resistivity directly affects the design of a grounding system, and it is to that task that this discussion is directed. When designing an extensive grounding system, it is advisable to locate the area of lowest soil resistivity in order to achieve the most economical grounding installation.

In market we find many suppliers for the soil and earth resistivity testing. We offer you one of the best equipments to measure the earth resistance and soil resistivity. We bring to you the 'GEOHM C' which offers you:

Battery operated tester for the measurement of ground resistance meets international standards for performing such tests. This instrument allows measurement of soil resistivity and ohmic resistance by means of the ammeter-voltmeter test method.

Features
• 3 or 4-wire measurement selectable from menu
• No balancing required
• Continuous monitoring of interference voltage and auxiliary earth electrode resistance with indication
of limit value violations
• Indication is displayed if maximum probe resistance is exceeded at the beginning of the measurement
• Voltage measurement with automatic switch-over function between direct voltage and alternating voltage:
-Direct voltage measuring range 1.0 … 250 V
(with polarity display)
-Alternating voltage measuring range 0 … 300 V

Applications
The GEOHM®C is a compact instrument for the measurement of
ground resistance in electrical systems in accordance with:
DIN VDE 0100 Installation of power systems with
nominal voltages of up to 1000 V
DIN VDE 0141 Grounding in AC systems with nominal
voltages of greater than 1 kV
DIN VDE 0800 Installation and operation of telecommunications
processing systems: equipotential bonding and grounding. Testing of lightning protection systems in accordance with DIN VDE 0185 The instrument is also capable of determining soil resistivity which is essential in calculating dimensions for grounding systems. It can thus be taken advantage of for simple, geological surveys, and for the planning of grounding systems. Beyond this, ohmic resistance can be measured at both solid and liquid conductors, as well as internal resistance at conductive elements, as long as these are capacitance and induction-free.
Special Functions
• Hold function: The measurement value is frozen at the display
after the measurement key is released.
• Storage of measurement values to memory
• Data interface for the transmission of measurement values
and for software updates
• Convenient report generating software,
can be expanded into a comprehensive database

For Further Details:

Mr.Anant.K.Waghchoure
Market Development
Executive

Rishabh Instruments Pvt Ltd
F-31,
MIDC-Satpur,
Nasik-422007
Maharashtra
India
Tel:0253-2202197
Mob:9371198805
Website:www.rishabh.co.in
Email:anant@rishabh.co.in