The MCM Soil Resistivity Kit is designed to conveniently store
and carry all the equipment required to calculate the resistivity of soil. The equipment
provided is all that is necessary to perform the Wenner Four-Pin and Soil Method, as
outlined by the ASTM G 57-78 Standard.
The MC Miller 4-Pin Test Reel (Cat No. 44700) has been designed and engineered to be used in conjunction with any
one of the MCM's multi-combination family of meters, the Nilsson 400 soil resistance meter
or similar four-terminal soil test instruments.
The test setup utilizes the mechanics of the "Four
Electrode Method," which was developed by the National Bureau of Standards and is
commonly known as the Wenner 4-pin Method. The resultant resistivity is the average
resistivity of the soil (electrolyte) to a depth equal to the spacing between adjacent
electrodes (soil pins). The maximum depth (pin spacing) of this standard test set has been
designed for 20 feet, which is recommended for standard survey.
The Soil Resistivity Reel is made up of four (4) separate,
color-coded lead wires of: 5-foot (yellow), 25-foot (orange), 45-foot (red) and 65-foot
(black) lengths. Lead wires are harnessed together and mounted on a lightweight handheld
reel. Wire ends at the reel are affixed to female banana plug jacks (mounted in the center
hub area) while the opposite ends are terminated with Mueller 27-C clips. Two-foot,
color-coded, jumper leads with banana plug ends are supplied with soil resistivity reel to
facilitate connection between the REEL and your test meter.
All lead wires and jumpers are made of our own No. 16 AWG,
105 strand copper wire with PVC insulation. In addition to our color coding of the wires,
all ends are clearly labeled as to their connection point.
