holiday detector 
Holiday Detector DJ-9             
Type DJ-9 holiday detector is a high-voltage special detector that is used to detect the quality of metal anti-corrosion coating.
This detector can detect different thickness of coatings, such as glass lining, glass reinforced plastic, epoxy coal tar, rubber lining and so on. The detector will emit bright sparks and with sound alarm when something is wrong with the coating, such as the emergence of pinhole, air bubbles, fissures and cracks. As powered by Ni-MH battery, and with small size and light in weight, it is especially suitable for field operation. The detector is the essential tool used for detecting the quality of metal anti-corrosion coating and can be used widely in many industries including chemical, petroleum, rubber and ceramic, due to its sophisticated design and stable & reliable performances.

1. Applicable detection thickness: 0.05~10mm
2. Output High-voltage: 0.6kv~30kv (stepless and continually adjustable)

3. Leakage points showed
4. Direct indication of output high-voltage
5. Battery:12V/2800mA
6. Power consumption: about 6W
7. Dimension: 220x130x88mm
8. Back light
9. Instantaneous boot, and automatic shutdown
10. 3–digit LCD displays output voltage, and with all-touch panel
11. Alarm: Dual alarm with earphone and buzzer

Online Industrial Holiday Detector N68-T             
1. High voltage generator adopts micro-electronics integration, anti-static-electricity condition
2. Digital display, making the output high precision
3. Automatic switch between high voltage and power voltage
4. Opening automatic check;
5. Anti-static-electricity condition, protection of incorrect high voltage operation
Function and Application:
Holiday Detector N68-T is a high-voltage special detector that is used to detect the quality of metal anti-corrosion coating in the produce progress of metal pipelines, constructed tanks and other installations.

Principles and Methods of detection: the spark leak detector performs detection of the anti-corrosion coating by exerting a certain amount of pulse high-voltage on the surfaces of anti-corrosion coatings of various conductive matrix, and the pulse high-voltage will form air gap and breakdown, and result in spark discharge, and send a pulse signal to alarm circuit to occur sound alarm when it pass through, if the anti-corrosion coating is much thin, metal leaks or there are leakage pinholes.

1. Detector Range: (with epoxy coal tar and petroleum asphalt as medium)
2. Output Voltage: 0.5-35KV
3. Display: digital display
4. High-pressure control system: Full digital control
5. Power Consumption: <5W
6. Alarm Delay: 1-2 seconds
7. High Pressure Gun: Import High Voltage Generator
8. Package: Aluminum Box
9. Dimension of main body: 165 x 155 x 68mm
10. Weight: 1kg