Portable Holiday Detector

The portable pinhole detector applies a low-voltage current through brush contact with the coating surface. When a coating defect is encountered, a current loop is formed, triggering audible and visual alarms. It is used to detect pinholes and cracks in anti-corrosion coatings on metal substrates and protective layers of pipelines. The device enables rapid on-site localization of coating discontinuities, preventing medium penetration and subsequent substrate corrosion.
Selection
When selecting, consider that the detection voltage range must match the coating thickness, and a dual-purpose dry/wet model should be chosen to adapt to different environments. The weight of the main unit affects operational convenience, and the electrode material determines wear resistance. The alarm sensitivity should be adjustable to avoid false alarms, and battery life must meet the duration required for on-site 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

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

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

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

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

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

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

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

Conductivity Detector temperature compensation technology, Measurement range 8~ 40%, accuracy +/- 0.5%, Response Time 1 second, with backlight display and automatic shutdown function, portable design weight only 175 grams.

$ 267.00

Measurement range 0.00~ 14.00, accuracy +/- 0.05, Stability +/- 0.03, support 0~ 60 ℃ temperature compensation, portable and lightweight only 205g, suitable for a variety of environments.

$ 156.00

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

Conductivity Detector measurement principle, measurement range 0~ 95%, resolution of 0.1%, Response Time of only 1 second, with temperature compensation and automatic shutdown function, portable design weight of about 175 grams for on-site use.

$ 144.00

Conductivity Detector measurement principle, measurement range 0~ 84%, accuracy +/- 0.5%, Response Time 1 second, with temperature and humidity compensation technology, portable design weight only 265 grams, suitable for on-site rapid detection.

$ 160.00

Conductivity Detector cell constant K = 0.1, built-in temperature sensor real-time sensing sample temperature, suitable for low Conductivity Detector liquid measurement.

$ 314.00

Articles