Wet Sponge Holiday Detector

The wet sponge pinhole detector applies a low-voltage current by contacting the coating surface with a moist conductive sponge. At coating discontinuities, a current pathway forms, triggering audible and visual alarms to locate pinholes. It is used to detect defects in insulating materials such as anti-corrosion coatings and pipeline protective layers.
Selection
Select the output voltage range based on the thickness of the material being tested, commonly available in three settings: 9V/67.5V/90V. Consider the testing environment; for explosion-proof areas, choose intrinsically safe models. Sponge electrodes must remain moist and be replaced regularly. Portable devices are suitable for on-site operations, while benchtop models are ideal for fixed laboratory testing.
type
Coated Film thickness
Voltage range

Terms

Standards

Instruments

With automatic self-inspection certificate voltage Adjustment, detection voltage 9V to 90V adjustable, thickness range 0~ 500μm, meet IP65 Protection Rating and weight only 180 grams easy to carry.

$ 1464.00

With 0~ 500μm thickness detection capability, using 9V/67.5V/90V multi-voltage output, automatic self-calibration and sound alarm function, meet IP65 Protection Rating to ensure durability.

$ 622.00

Using high voltage DC technology, the maximum detection thickness is 36 mm, the voltage range is 0-30kV fully adjustable, with current limit protective coating and Sensitivity adjustment function, suitable for metallization or slightly wet coating detection.

$ 5992.00

The use of high voltage DC technology can detect 36mm thick coatings, with current limiting function to avoid coating damage, Sensitivity adjustment to adapt to metallization or slightly wet coatings, providing stability testing current and overcharge protection.

$ 6782.00

Glass-lined, FRP, epoxy coal asphalt coatings of different thicknesses can be mass tested by high voltage detection technology. When the coatings have defects such as pinholing and bubbles, the instrument will emit bright sparks and sound and light alarms.

$ 1230.00

Suitable for low Hardness Rubber and Sponge Determination, Measurement range 20-90HAO, Indication Error ≤ +/- 1HAO, Portable design for quick field testing.

$ 141.00

Pulse high voltage technology, detection thickness range 0.05-10 mm, output high voltage 0.6-30 KV stepless adjustable, with sound and light double alarm and automatic shutdown function, nickel-metal hydride battery power supply easy to carry.

$ 590.00

Suitable for low hardness rubber and sponge determination, measurement range 20-90HAO, resolution 0.1HAO, support real-time mode, peak mode, automatic timing and average mode.

$ 399.00

Adopting high voltage detection technology, it can sensitively find defects such as coating pinholing and bubbles, equipped with sound and light alarm system, and powered by nickel battery, which is convenient for field operation.

$ 590.00

0.6KV~ 31.5KV full scale high voltage output, voltage Accuracy +/- (0.1KV + 3% reading), intelligent control automatically match Coating thickness, pulse discharge to reduce secondary damage, prolong battery life.

$ 1041.00

0.6KV~ 31.5KV full scale high voltage output, voltage accuracy +/- (0.1KV + 3% reading), intelligent control to ensure that the display voltage is the test voltage, pulse discharge to reduce coating secondary damage, sound and light alarm and leakage point counting function.

$ 622.00

Using 25mm stylus and 80mm pressure foot, Measurement range 10~ 90HMF, error ≤ 1HMF, support USB and Bluetooth data output, with unit conversion and automatic shutdown function, portable design for handheld or fixed load measurement.

$ 375.00

Adopt digital filtering technology for accurate thickness measurement, resolution up to 0.1HMF, Accuracy ≤ 1HMF, support RS232C communication to achieve data collection and analysis, automatic voltage indication and shutdown function.

$ 443.00

Using high frequency principle, the measurement range is 0-80%, the accuracy is 0.1/0, and the Response Time is 1 second. The probe type Sensor can penetrate deep into the material. The portable design weighs about 200 grams, which is suitable for on-site rapid detection.

$ 235.00

Platinum Sensor provides linearly stable measurement results, Conductivity Detector cell constant K = 10, Measurement range 0 to 200mS/cm, suitable for high Conductivity Detector liquid detection.

$ 106.00

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