DESCRIPTION:
The Model SR-2 Soil Resistivity Meter is an electronic instrument useful in finding the resistance of soil at
various depths.
Uses:
• New Pipeline Surveys
• Direct Assessment Surveys
• U.S.T. Surveys
• Anode Bed Installations
• Geological Surveys
• Archeological Surveys
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 (astm.org) as Standard G57-95(a), and this
method is also described in NACE Internationals, Peabody’s Control of Pipeline Corrosion, Second
Edition, pg. 84. (nace.org)
FEATURES: APPLICATIONS:
Simple Operation, Easy to Use Wenner 4 Pin Method
3 Megohm Range 3 Pin “Fall of Potential”
Data Logger connection 2 Pin Method
Internal rechargeable battery with Low Battery indicator Soilbox (Lab) tests
Common Pin Spacing multipliers and formula included on lid
Charging Indicator (LED)
CONTENTS:
(1) INSTRUMENT
(1) 9v BATTERY (replaceable)
(1) 12v BATTERY (rechargeable)
(1) BATTERY CHARGER (110v)
(1) INSTRUCTION MANUAL
OPTIONS AVAILABLE SEPARATELY:
Model DL-1 Data Logger cable
Test Cables and Reel
Earth Pins
DIMENSIONS:
10 ½” x 9 ⅝” x 4 ¾” (266.7mm x 244.48mm x 120.65mm)
WEIGHT:
6 ¾ lbs. (3.06 Kgs)
8 lbs with domestic packaging (3.63 Kgs)
9 lbs with international packaging (4.08 Kgs)
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