version v1. 7

The "Electrotest-2RM/bt-m" equipment (hereinafter referred to as Electrotest-2RM) is intended primarily for electric exploration using probing (PROBE), electric profiling (EP), and natural field (EP) methods, as well as for determining the intensity of stray currents (BT).

The main field of application of the equipment is the study of a geoelectric section for solving various geological, engineering-geological, hydrogeological and archaeological search and mapping problems with a depth of research of tens of meters.

Electrotest-2RM can also be used to solve a number of engineering and technical problems such as:

• searching and tracing underground reservoirs;
• determining the location of insulation violations of metal pipelines;
• measuring the resistance of earthing devices.

The small size and weight of the equipment, the generator and meter of which are located in a single housing, allow you to use it in hard-to-reach places.

Computerized control of measurement processes in different modes, the ability to record measurement results in real — time non-volatile memory (RAM) with subsequent transfer of the recorded data to a computer-all this ensures prompt field measurements and in-house processing of their results.

When working with the PROBE and EP methods, automatic compensation of the EMF polarization of the receiving line electrodes is provided, as well as calculation and indication of the apparent electrical resistivity (ESR).

Electrotest-2RM is equipped with a two-channel potential difference meter. This allows for simultaneous measurements of the potential difference taken from the receiving line and the current in the supply line with the PROBE and EP. With EP and B, simultaneous measurement of the potential difference from two receiving lines is provided. As for BT, the measurements are performed in accordance with the requirements of GOST 9.602-2005 with automatic recording of results in RAM.

The operation of the electric Test 2Rm is controlled using a keyboard, and the information required for the operator is displayed on a liquid crystal display (LCD), which has 4 lines of 20 characters. Depending on the type of work on the LCD, various sets of parameters can be output, including:

• coefficient of the measuring unit in meters (K);
• potential difference in mV (U);
• current in mA (J);
• CUES in Ohm*m (RA);
• the current address number for recording information in RAM (N).
• current number of the measurement point (PC).
• battery voltage in Volts.

The device "Elektrotest-2RM / bt-m" is supplied in two versions of the housing: Fig. 1 and Fig.2. Additionally, the device "Electrotesit-2RM / bt-m" can work together with a 32-channel measuring unit (Fig. 3), which is used in the device "Electrotest-32rm/bt".

Main technical characteristics:

• 25 V, 50 V, 100 V, 200 V at a supply voltage of 12.6 V, the generator output when powered by internal battery up to 25-30 watts when powered from an external battery to 40-45 watts;
• 50 V, 100 V, 200 V, 400 V with an external supply voltage of 25.2 V.

• Electrotest-S/USB
• Electrotest-S/ARM
• Electrotest-Rm
• Electrotest-2Rm
• Electrotest-EIS-3KM
• Electrotest-EIS-W
• Electrotest-2Rm/bt-m
• Electrotest-32Rm/bt

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Last update: 04 November 2009