HD-006 Holiday Detector:

Holiday Detectors are employed in the non-destructive detection and location of pinholes, bare spots or thin points in protective coatings applies for corrosion protection over metal and concrete (conductive) surfaces.
With corrosion an extremely costly and disruptive worldwide problem, preventative determination becomes essential.
For newly constructed tanks, pipelines and other installations, where corrosion prevention coatings have had to be applies, specifications will normally call for a specific coating to a specific thickness. By using our Detector to verify the competency of the sealing coatings, the contractor can be assures that his coatings responsibility has been met.

Complies with Standards: ISO 2746, BS 1344-11, ASTM G 6, ASTM G 62, ASTM D4787, ASTM D5162, NACE RP 04901, NACE RP 0274, NACE RP 0188, JIS G3491, JIS G3492, AS 3894.1, EN14430 and ANSI/AWWA C 213 etc.

Specification:

HD-005 Holiday Detector:

Specification:

HD-007 Holiday Detector:(With hole memory function and avoid damage to coatings)

Accessories:High Voltage Probe(Arc probe and circle/ring probe are available), Band Brush, Fan brush,Flat brush,Earth Cable, Neck Strap and Carrying Case.

Flat brush:

Sector brush:

Circle brush:

Arc brush:

Circle probe:

Internal brush:

Wet sponge holiday detector:

SHD001 Wet Sponge Holiday Detector has received wide acceptance in the corrosion control and industrial painting industry as a device for locating bare spots (or holidays,cracks etc) in the thin protective films which are sprayed or brushed on metal or concrete surfaces. This pinhole detector is non-destructive with low voltage of 9V,67.5V,90V DC output.
The inspection electrode consists of a 168×68×28mm cellulose sponge which, when dampened with water, is moved over the coated surface. When the electrode passes a void or bare spot, a small current flows and actuates an audible signal in the instrument. The damp sponge provides an electrically conductive film that contacts the surface being inspected and insures good inspection even in corners and around irregular shapes where holidays are most likely to occur.
Features

• Non-destructive, sponge-type holiday detector.
• Regulated 9V,67.5V,90V DC output.
• With LED light indicator for each voltage
• Li-pol batteries readily available anywhere.

Specification:
(1)thickness:9V ——for 300 UM;
                   67.5V—for 500 UM;
                   90V——for 500 UM;
(2)Ohm:9V——90KΩ+5%;
             67.5V—125KΩ+5%;
             90V——400KΩ+5%;
(3)Voltage accuracy:+5%;
(4)Power supply: rechargeable 11.1V/1100mA Li-pol battery
(5)Power:≤0.5W;
(6)Weight:0.53kg
(7)Size:280×52×51mm
(8)Sponge size:168×68×28mm
(9)Probe length:196mm
(10)Earth cable:4m

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