SL-286 with marking, counting function

SL-286-type EDM-line detector is based on the Canadian standard EDM-line detector, combined with the actual situation developed, it is used to detect the metal pipe in the production process of its surface corrosion insulation quality of a special test equipment.

'Features'
▲ The introduction of foreign microelectronics high voltage generator, computer control and other new technologies

▲ AC 220V power supply, safe and reliable

▲ low power consumption, small size, light weight;

▲ with marking and delay function;

▲ can be the number of pipeline coating damage points;

▲ Simple, intuitive and convenient for the anti-corrosion pipeline insulation on-line detection provides a reliable detection method;

▲ to overcome the domestic online detector with the phenomenon of high-voltage electrostatic machine, the user is extremely safe.

'Detection principle and method'
Metal surface insulation coating is too thin, leakage iron and leakage at the micro-hole resistance and air gap density is very small, when there is a high pressure through the formation of air gap breakdown spark discharge, to the alarm circuit, marking circuit and count The circuit generates a pulse signal, the alarm issued a sound and light alarm, marking device on the coating layer defects on the mark, the counter counts once, according to this principle to the coating leak detection, marking and counting purposes.