High Precision Holiday Detector Online Porosity With Digital
Display HD-120
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.
Functions
On-Line Holiday Detector HD-120 is special testing equipment used
to detect oil and gas pipelines, cables, enamel, metal tank, hull
and other protective coatings flaws. It is professional and
practical equipment.
Applications
1,oil and gas Anticorrosive factory, pipelining company,
construction departments and qualitative inspect branch.
2,also use to gas company and water company pipeline inspecting
3,Shipbuilding, petrochemical plant, factory, machinery plant,
enamel factory and bridge engineering anticorrosion-layer
inspecting.
4,Pipeline transportation company anticorrosion-layer inspecting
Features
1,Microelectronic integrated high voltage generator, to overcome
the electrostatic
2,Full keyboard operation, Improve performance
3,Automatic switch for High voltage and source voltage
4,Power on self test function
5,protective function when mistakenly entered
6,pinhole automatic counting
7,High voltage output can Continuous adjustment, auto-save the high
voltage value
8,Display the actual test voltage, Ensure the safety of the coating
9,Three different poles to adapt different test
10,Modular structure, three-proofing design, long service life and
reliability
Technical parameters
1,Measuring range:0.03-10.mm(Epoxy coal tar pitch,Petroleum asphalt
medium)
2,Output high voltage:0.5-35KV
3,Display:digital display
4,High voltage control system:digital governor
5,220V AC power supply
6,Consumption:＜5w
7,Alarm delay:1-2s
8,High voltage probe:high pressure generator (import)
9,Packing:Aluminum box
10,Main dimension:165mm×155mm× 68mm
11,Weight:1kg
Keypad menu
- digital display:display power and high voltage；
- ↑:increase output high voltage；
- ↓:decrease output high voltage；
- Switch；
- Power；
Standard accessories
| Name | No. | Quantity | Picture |
| Host HD-120 | | 1 |  |
| High voltage gun | | 1 |  |
| The brush plate | | 1 |  |
| 220V power line | | 1 |  |
| long cable | | 1 |  |
| Short connecting line | | 1 |  |
| Connecting magnet | | 1 |   |
| earth rod | | 2 |  |
| high pressure gloves | | 1 |  |
| Manual | | 1 | |
| Certificate | | 1 | |
Optional accessories
Ark brush
Flat brush
Circle spring brush
Pipe Inner surface brush
Battery
