DC Pinhole Detector

The DC pinhole detector applies voltage to the coating surface via a DC high-voltage generator, forming a current path and triggering an alarm when pinhole defects are present in the coating. It is used to detect the continuity of anti-corrosion coatings on metal substrates and locate invisible coating damage points in industrial protection fields such as pipelines and storage tanks.
Selection
Select a grounded or dual-electrode model based on the conductivity of the substrate being tested; match the output voltage range according to the coating thickness; choose a portable or benchtop model for field or laboratory use; consider automatic alarm and recording functions based on detection efficiency requirements; and confirm the insulation protection level in accordance with safety standards.
type
Coated Film thickness
Voltage range

Terms

Standards

Instruments

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

$ 314.00

Using platinum sheet material, Conductivity Detector cell constant is 10, suitable for high conductivity environment water measurement, equipped with three core socket interface, no temperature compensation design.

$ 102.00

Using platinum sheet material, Conductivity Detector cell constant 0.1, no temperature compensation function, suitable for pure water and ultra-pure water and other water quality measurement, optional Glass flow Tank.

$ 185.00

Using platinum sheet material, Conductivity Detector cell constant is 1, Measurement range covers 2.0~ 200 µS/cm, suitable for conventional water detection, interface is three-core socket, no temperature compensation function.

$ 99.00

Conductivity Detector 1 with platinum sheet material. Measurement range from 200 µS/cm to 200 mS/cm. Suitable for environmental and conventional water detection without temperature compensation.

$ 99.00

Platinum Sensor ensures linear and stable measurement, built-in temperature sensor real-time compensation, Measurement range of 0-200mS/cm, suitable for high Conductivity Detector liquids, equipped with 5 Meters low noise Shielding cable.

$ 140.00

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

Using Platinum Sensor to ensure linear and stable measurement, Conductivity Detector cell constant K = 1, Measurement range 0~ 20mS/cm, suitable for conventional liquid detection, Operating temperature 0~ 80 ℃.

$ 102.00

Platinum Sensor ensures fast and stable measurement, Conductivity Detector cell constant K = 1, Measurement range 0~ 35mS/cm, Glass shell is durable, suitable for conventional liquid detection.

$ 185.00

Fillable internal reference solution design with circular Glass sensitive membrane and annular ceramic liquid junction for low Conductivity Detector samples ensures measurement Stability and accuracy.

$ 330.00

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

Glass bulb sensitive film, Measurement range 0-14pH, suitable for low Conductivity Detector sample measurement under closed static conditions, Dimension Φ 12 × 120mm.

$ 89.00

Conductivity Detector Measurement principle, Measurement range 0-50%, Response Time less than 1 second, with temperature and humidity compensation function, split design for quick detection on site.

$ 230.00

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

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