Porosity Holiday Detector /Spark Leak Flaw Detector

 Porosity Holiday Detector /Spark Leak Flaw Detector

Functions and Uses:

 Sl-iii series edm detector is used to detect the construction quality and aging corrosion points of anticorrosive coatings on oil and gas pipelines, cables, enamels, metal storage tanks, lining and ship hull.When the anticorrosion coating has the quality problem such as the micro hole, air gap, the instrument will emit the bright spark, at the same time produces the sound alarm.The instrument has novel design and simple operation, and is widely used in petroleum, chemical, rubber, enamel, power plant and other industries.

Porosity Holiday Detector /Spark Leak Flaw Detector

Characteristics 

1. Low power consumption, small size and light weight;

2. Simple operation, intuitive and convenient;

3. The pointer head indicates the output voltage and the supply voltage;

Porosity Holiday Detector /Spark Leak Flaw Detector

Main technical indicators

Main engine weight: 1.5kg (including battery)

 Porosity Holiday Detector /Spark Leak Flaw Detector

Detection principle and method

The resistance value and air gap density are very small at the insulation and corrosion protection layer on the metal surface is too thin, the iron leakage and electricity leakage microhole, when there is a high voltage after the formation of air gap breakdown and spark discharge, the alarm circuit to produce a pulse signal, alarm alarm sound and light alarm, according to this principle to achieve the purpose of corrosion protection layer leakage detection.

Instrument accessories

1. One main machine

2. One high-pressure gun

3. One plate probe brush

4. One charger

5. One long grounding wire

6. One short grounding wire

7. Connect one magnet

8. 2 grounding rods

9. One pair of high-pressure gloves

10. One set of random documents

Remarks standard: plate type probe brush; Optional: fan-shaped probe brush, circular probe brush (to detect the inner wall of the pipeline), circular probe brush (to detect the outer wall of the pipeline), extension rod

Detection principle and method

The resistance value and air gap density at the pinhole, iron leakage and electricity leakage microhole of the insulating anticorrosive layer on the metal surface are very small. When the high voltage passes by, the air gap breakdown will produce spark discharge. The alarm circuit and the counting circuit will each generate a pulse signal, and the alarm will send out a sound and light alarm