HUATEC GROUP CORPORATION
HUATEC GROUP CORPORATION Professional Non Destructive Testing Equipment
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HD-201A/B/C Dial Porosity Holiday Coating Surface Flaw Testing Detector
[Function]
HD-201 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 simple and practical equipment
[Characteristic]
1,Low power consumption, small size, light weight;
2,Simple operation;
[Main technical index]
| Measuring range | A:0.03-3.5mm(Epoxy coal tar pitch medium) B:3.5-10.mm(Petroleum asphalt medium) C:0.03-10.mm(Epoxy coal tar pitch,Petroleumasphalt medium) |
| Output high voltage | A:0.5-15KV |
| Display | pointer |
| High voltage control system | Ordinary potentiometer adjustment |
| DC supply | 12v |
| Consumption | <5w |
| Alarm delay | 1-2s |
| High voltage probe | Electronic high voltage generator |
| Packing | metal chest |
| Main dimension | 165mm×155mm×68mm |
| Weight | 1.5kg(Including battery) |
[Accessories]
Charger, high pressure gloves, long cable, short connecting line, Connecting magnet, earth rod, The brush plate, Manual
[Principle]
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.
