Model 673 – In-Plant

Wet Sponge1-20 Mils for Paints and Epoxy Paint Coatings

The Model 673 Wet Sponge Holiday Detector for Plant or Stationary Operations is highly sensitive and accurate. A uniform coating of only one mil of paint or other non-conductive material over a metal surface is sufficient to repel a small current flow. If a pin-hole holiday is encountered, moisture from the sponge will seep into the hole and create a free path for electrical flow, activating the signal horn.

For coatings 1 to 10 mils thick, ordinary tap water can be used to wet the sponge. For coatings of 11 to 20 mils thickness, a non-sudsing wetting agent (such as Kodak Photo-flow R®) is recommended to increase ability of the moisture to swiftly make its way through the pin-holes.

Convenient output plugs on rear of unit allow use of customer supplied external signal systems such as lamps, Klaxon horns, recorders, etc. Output from these plugs is 120 volt A.C.

Product Features

Fast and easy non-destructive inspection of paints, epoxy paints and coatings 1-20 mils:

  • NEW Ergonomic, Balanced, Lightweight Handheld Design.
  • NEW Rugged, Durable Construction
  • 67.5 Volt DC-Sensitive and Accurate
  • NEW Quick Change Battery Compartment
  • A NEW Wide Range of Quick Change Accessories
  • NEW Inspection Kit w/Carrying Case (Optional)

Technical Specs

Voltage Type: DC
Voltage Range (kV): 67.5 Volts
Voltage Output Accuracy: ±5%
Coating Range (Min-Max): 1 – 20 mils
Operating Temperature: –40°F to 148°F
Holiday Indicator Type: Audible/Visual
Battery: 120V AC
Battery Life: N/A (Number of Holidays)
Low Battery Indicator: 120V AC (Optional 220V to 120V transformer)
Unit Weight: 1.9 lbs
Unit Weight With Battery Only: 1.8 lbs
Unit Dimensions (LxWxH): 9” x 9” x 3.25”
Domestic/International Standards Unit Complies With: NACE SP0188-2006
Factory Warranty: 3 Month

Included With Kit

1 – 8 ft. Power Cord
1 – 14.5” Sponge Wand
1 – 12 ft. Wand Signal Cord
1 – 3 ft. Ground Cable
1 – Operating Instruction