Tinker&Rasor SR-2 Product Instructions
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Tinker&Rasor SR-2 Product Instructions

Soil resistivity meter
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P. O. B
1667 S
B
OX
AN
ERNARDINO
MODEL SR-2 S
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
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:
Simple Operation, Easy to Use
3 Megohm Range
Data Logger connection
Internal rechargeable battery with Low Battery indicator
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)
Web: www.tinker-rasor.com
CORROSION MITIGATION INSTRUMENTATION
, C
92402
A
P
I
RODUCT
NSTRUCTIONS
R
OIL
– 1 –
T
: (909) 890-0700
EL
M
ESISTIVITY
ETER
•
Anode Bed Installations
•
Geological Surveys
•
Archeological Surveys
APPLICATIONS:
Wenner 4 Pin Method
3 Pin "Fall of Potential"
2 Pin Method
Soilbox (Lab) tests
E-mail: Info@tinker-rasor.com
F
: (909) 890-0736
AX
107-108

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Summary of Contents for Tinker&Rasor SR-2

  • Page 1 : (909) 890-0736 ERNARDINO RODUCT NSTRUCTIONS MODEL SR-2 S ESISTIVITY ETER 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 Anode Bed Installations •...

  • Page 2: Operation

    Connect cables between each pin and the corresponding terminal on the Model SR-2 panel. C1 and C2 are color coded on the Model SR-2 as BLACK. P1 and P2 are color coded RED. The terminals allow for banana jacks or spade connectors.
  • Page 3 : (909) 890-0736 ERNARDINO RODUCT NSTRUCTIONS MODEL SR-2 S ESISTIVITY ETER The Test Indicator LED just above the PUSH TEST button will light during testing. If this LED is blinking, the battery is low and will need to be charged within 24 hours. (See CHARGING below.) If the LCD display shows “1_ _ _.”, move the RANGE SELECTOR switch one position clockwise (right),...

  • Page 4: Range Selector

    DATA LOGGER: The Model SR-2 has a convenient connection port for the Tinker & Rasor Model DL-1 Data Logger. Connecting the Model DL-1 Data Logger to the Model SR-2, allows the operator to trap resistances within the DL-1 TRAC software.

  • Page 5: Warranty

    TEST button. If this LED is lit, the instrument needs to be charged. The battery charger plugs into the panel face of the Model SR-2, just above the RANGE SELECTOR switch. A CHARGING INDICATOR LED will light when the battery is being charged. The AC battery charger should fully charge the battery on an overnight charge.

  • Page 6: Specifications

    NSTRUCTIONS MODEL SR-2 S ESISTIVITY ETER SPECIFICATIONS: • SR-2 resistivity measurement range 4 PIN Method 0.1 Ω to 3.3 MΩ. 2 PIN Method 0.03 Ω to 10 MΩ • Accuracy of measurements of 10% or better. • Overload circuit that helps the user to identify the correct measurement range.

  • Page 7: Troubleshooting

    If no change, check connections between cable and pin, number “-1234” is a condition where the and cable on SR-2 for faults. top soil is very dry, and the underlying soil is If still no change, try moving all pins to a different line very wet.
  • Page 8 CORROSION MITIGATION INSTRUMENTATION P. O. B 1667 S 92402 : (909) 890-0700 : (909) 890-0736 ERNARDINO RODUCT NSTRUCTIONS MODEL SR-2 S ESISTIVITY ETER PICTURE 1: Battery Battery Charger Charger C1, C2, P1 & P2 connector indicator LED Terminal Posts Model DL - 1...
  • Page 9 : (909) 890-0736 ERNARDINO RODUCT NSTRUCTIONS MODEL SR-2 S ESISTIVITY ETER Connection Diagram for using the Model SR-2 with the Model SB-1 Soilbox. Model SB-1 multiplier for 4 Pin measurements is 1.349. Web: www.tinker-rasor.com E-mail: Info@tinker-rasor.com 107-108 – 9 –...
  • Page 10 ESISTIVITY ETER Connection Diagram for using the Model SR-2 with the Model SB-2 Soilbox When using this soilbox, the pin selection switch should be set to “2 PIN” method. As shown below. Model SB-2 multiplier per AASHTO T-288 is 6.67 cm Web: www.tinker-rasor.com...

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