SR-2 Soil Resistivity Meter
Article No. 10901
SR-2 Soil Resistivity Meter
The Model SR-2 Soil Resistivity Meter is a very accurate resistance meter with a digital display. It has push button operation, and its easy to change ranges make operation simple. it can be used in the field or lab with pins or soil boxes.
Features
- Digital meter readout
- Push button operation
- Weather/Impact resistant case
- Easily move between ranges - 0.1 Ohm to 3.3 MegOhms
- Can be used for the following:
- 4 Pin “Wenner Method” (ASTM G 57)
- 3 Pin “Fall of Potential”
- 2 Pin applications (ASTM G 187, AASHTO T288)
- 1 Pin “Single Rod”
- Soil Boxes
- Casing Shorts
- Geological Studies
More Information
Model SB-1 Soilbox
Made of strong plastic resins allowing for rugged field use. Material is clear for easy visual inspection and cleaning. Specifications 1.575”H x 2.362”W x 9.350”L (4cmH x 6cmW x 23.75cmL) inside dimensions. Conforms to ASTM G 57, ASTM G 187. Includes: (1) Soilbox, (4) Brass connectors, (2) Banana plug leads Red 2 ft, (2) Banana plug leads, Black 2 ft
Model SB-2 Soilbox
Made of strong plastic resins allowing for rugged field use. Material is clear for easy visual inspection and cleaning. Specifications 1.49”H x 3.99”W x 5.99”L (38mmH x 101.5mmW x 152.3mmL) inside dimensions. Conforms to AASHTO T 288. Includes: (1) Soilbox, (2) Electrode plates, ss, (2) Electrode hardware, ss (2) Leads with clamps
CD-SR-2V Verification Test Unit
Use to test accuracy and calibration on soil resistivity meters. Ranges include 150 Ohm, 15.0 Kohm, 150.0 Kohm and 1.50 Mohm.
Standards
ASTM G 57, ASTM G 187; AASHTO T 288
Procedure
The instrument may be used with either two (2) or four (4) pins, which are set into soil in a straight line, at equal distances. The Pins are named C1, P1, P2 and C2. Voltages are driven between C1 and C2, while resistance drop is measured between P1 and P2 (4 pin method).
In the two pin method, the resistance drop is measured between C1 and C2 only. The distance between the pins is equal to the depth of the soil resistance.
The four (4) pin method has been standardized by ASTM as Standard G 57-95(a) and this method is also described in NACE Internationals, Peabody’s Control of Pipeline Corrosion, Second Edition, pg.
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