chinacoal13

best selling Digital Holiday Detector 

D1 Porosity Holiday detector

Details:

Function

D1 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.