Porosity Holiday Detector

N68-T Online Porosity Holiday detector


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N68-T Online Porosity Holiday detector is a special testing equipment used to detect oil and gas pipelines, cables, enamel, metal tank, hull and other protective coatings flaws. It is a professional and practical equipment.

Product Description


1, microelectronic integrated high voltage generator, to overcome static phenomenon;
2, digital display, improve the accuracy of the output;
3, high voltage and power supply voltage automatic switching;
4. POST function;
5, anti-static, high pressure mistyped protection

【Main technical index】

1、Measuring range:0.03-10.mm
2、Output high voltage:0.5-35KV
3、Display:digital display
4、High-pressure control system: Full digital control
5、 220V AC power supply
6、 Power consumption: <5W
7、Alarm delay: 1-2 s
8、 High pressure gun: Imported high-voltage generator
9、Packing: aluminum box
10、The host size: 165mm × 155mm × 68mm
11、Weight: 1kg


1.Host x1
2.High voltage probe x1
3.Brush plate x1
4.Warning Light x1
5.220V power line x1
6.Long cable x1
7.Short connecting line x1
8.Connecting magnet x1
9.earth stick x1
10.Rubber gloves x2
11.Manual x1


 The detector generates a high DC voltage that is applied to the coating surface through a probe. The detector is connected to the substrate via the high voltage returned. When the probe is passed over a coating flaw, then the electrical circuit is completed and current flows from the probe to the substrate. As a result, audible and visual alarms are activated in the detector and a spark may be produced at the flaw.


Standard configuration: The brush plate 
Optional configuration: The fan-shaped brush, The inner circular brush,the exterior circular brush

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