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Shengli SL-286 Online Electrical Spark Detector

【Function and Purpose】

    Shengli SL-286 online electrical spark detector is developed based on the Canadian standard for online electrical spark detectors combing the practical conditions in China, which is the dedicated equipment for coating quality detection of metal pipelines during their production.

【Characteristics】

1. Introduction of such foreign new technologies as microelectronic high-voltage generator and PC control

2. Adoption of 220V AC power supply, safe and reliable

3. Low power consumption, small volume, less weight

4. Marking and delay functions available

5. Capability of counting the damaged points on the coating

6. Easy, audible, visible, and convenient in operation, providing a fastest and most reliable method for online detection of pipe coatings;

7. Having solved the problem encountered by domestic counterparts which have high-voltage static electricity, extremely safe for operators.

【Primary Technical Parameters】

1. Measuring range: 0.03-3.50mm (type A); 3.50-10.0mm (type B)

2. High-voltage output: 0.5-15.0KVtype A; 15.0-36.0KVtype B

3. AC power supply: 220V±15%

4. Power consumption: 5W

5. Alarm delay: 1-2 seconds

6. Main frame volume: 300×280×150mm3

7. Main frame weight: 2.5kg

【Detection Principle and Methodology】

    The resistance and the air gap density are very small at under coating, metal-exposed, and leakage microporous on the anti-corrosive and insulative coating of metal pipes, so when the high voltage passes through, the gap breakdown forms to generate spark discharge, giving out a pulse signal to alarm circuit, marking circuit and counting circuit respectively. The alarm sounds with light, the marking device marks on the defect of the coating, and the counter counted once. That’s how the online spark detector conducts leakage detection, marking and counting on the anti-corrosive coating.

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