HD-201A/B/C Dial Porosity Holiday detector

Details:

【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】
1,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,Petroleum asphalt medium)

3,Output high voltage:

A:0.5-15KV

B:15-35KV
C:0.5-35KV

4,Display:pointer

5,High voltage control system:Ordinary potentiometer adjustment

6,DC supply:12v

7,Consumption:＜5w

8,Alarm delay:1-2s

9,High voltage probe:Electronic high voltage generator

10,Packing:metal chest

11,Main dimension: 165mm×155mm×68mm

12,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.