CPV-2 Voltmeter Tinker & Rasor

The Tinker & Rasor Model CPV-2 Cathodic Protection Voltmeter is an extremely rugged new instrument for measuring the DC structure to earth potentials of various buried or submerged metal structures.

Powered by two "AA" penlight cells, the Model CPV-2 requires no push to read switch, and the solid state integrated circuit has built-in filter to reject AC interference. Input resistance of 10 megohms (10 million ohms) of this instrument results in potentiometer quality voltage readings. Red-is-bad and green-is-good segments with 0.85 V as the division line.

This versatile meter may also be used without the reference electrode to measure direct current potentials from 0 to 2 volts, such as potentials across an insulated flange, anode to structure, or structure to structure. Study the features and specs and you'll see why corrosion experts agree that the Model CPV-2 offers greater benefits.

Movement 100 microamp
Accuracy +3% of full scale
Sensitivity 2 Volts DC full scale
Scale 1.25" (31.8 mm.) black features on white background
Dimensions Front panel: 3" (76.2 mm.) square. Total length with standard half cell: 8 1/4" (209.6 mm).
Weight 1 lb 6 oz (725 g)
  • Housed in 1/8" (3.18 mm.) thick aluminum square tubing
  • Baked enamel finish with instructions on case
  • 2 "AA" penlight batteries; long life expectancy
  • Easy access battery compartmeAnt
  • Built-in battery tester
  • Rugged meter with color-coded scale
  • No switch necessary to take readings
  • Integrated circuit design
  • 2 heavy-duty coil cables with clamp and
  • Banana plugs
  • Sturdy foam-formed compartmented
  • Carrying case