TAR-3 Pseudosection Kit

Section Pins used in the TAR-3 Line Mode
Section Pins used in the TAR-3 Line Mode

The output from the TAR-3 Resistance Meter Pseudosection Mode is compatible with all interpretation/analysis software!

The Pseudosection Kit comprises of:

  • Thirty (350mm, 8mm diameter) stainless steel measurement ‘Crook’ Probes. Each probe weighs 0.185kg (30 probes weigh 5.5kg).
  • One – Blue Extension Lead 8m long, 4mm banana socket to banana plug.
  • One – Red Extension Lead 8m long, 4mm banana socket to banana plug.
  • Two 4mm Insulated Crocodile Clip – Black
  • Two 4mm Insulated Crocodile Clip – Red

Probe Line
Using the 30 probes, section lines of 99 probes long can be achieved without having to repeat readings

This is a manual system.

  1. Set the total number of probes in the LINE (n), the maximum probe spacing, (c) and the number of probes per metre.
  2. Connect the leads to the probes in the order displayed on the TAR-3’s LCD Display
  3. The results are logged and stored on the SD Card in a text file and in a text *.DAT file
  4. The *.DAT file is compatible with RES2DINV
  5. Note: The TAR-3 Line Mode results displayed on the LCD screen are in Ohms (Ω) but are saved to the ‘DAT’ file in Ω.m (resistivity)
Line No= 6
0	0.5	5.5230
0	1.0	5.2051
0	1.5	5.1025
0.5	0.5	5.0528
0.5	1.0	5.1053
0.5	1.5	5.4210
1.0	0.5	5.4403
1.0	1.0	5.0100
1.0	1.5	5.6012

A Wenner Array input file
The TAR-3 can also be used in the Pole-Pole probe configuration.

The position of each probe is displayed on the TAR-3 Resistance Meter during use giving real time, ‘On Screen’ information of the correct cable connections.

Lines can be up to 99 probes long.

Section from Res2dinv
Section from Res2dinv

The TAR-3 Resistance Meter Section kit and software is a great advance from using a meter with pen and paper. Results can be merged using Microsoft Excel® or other spread-sheet. This is a true ‘Section’ tool. (No dummy lines or odd shaped grids are needed.)

The probes/pins have a 4mm diameter hole in the end and can accept a 4mm plug. For speed crocodile clips are supplied enabling cables to be speedily ‘walked’ along the probes in the section.

NB The TAR-3 Meter measures the apparent (actual) resistance. Users should use the appropriate scaling factor to calculate the resistivity (or apparent resistivity) if required.

The TAR-3 Resistance Meter Line Mode can process 999 readings per line which is enough for lines of Ninety-Nine probes and Nine deep (856 readings in total). 856 readings, at one reading per minute, is over Fourteen hours work (nonstop). Two (or more) day’s work can be combined quickly and safely using a text editor.

Section from Res2dinv
Typical Probe Positions and Spacing (C=9 is the maximum spacing)

Country of Origin: GB (Country in which last significant manufacturing process was carried out)
Tariff No: 90159000 (If supplied with a TAR-3 System 90303900)
RoHS Compliant: Yes


See the TAR-3 Line Mode FAQ hereGalvanic Contact Pads

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