Low Power Consumption DC Spark Leak Detector For Testing Metal Corrosion Coating MTH-7D

Testing the quality of metal corrosion coating MTH-7D digital DC spark leak detector

Product description

MTH-7D digital DC spark leak detector,based on the pulse of high pressure conduction through the principle of anti-corrosion layer,can quickly detect the crack leakage of the coating. Using,in view of the quality of the coating,in case of the pinhole,bubble and crackle ,the instrument will make a bright spark,accompanied by a warning tone,the operation is extremely simple,It’s powered by the unique design relies on the large capacity battery packs,can get rid of 220V power supply,applicable to engineering site operations. The performance of the product is stable and reliable, thus widely used in Oil and Gas pipelines,Cable,Enamel,Metal Casting Pipe,Hull and other metal surface corrosion insulation construction quality and aging corrosion monitoring,it is the necessary testing equipment in chemical, oil, rubber industry.

Working principle

A certain pulse voltage is applied by applying a Anti-corrosive coating to the conductor, if the coating is too thin or there is some metal leakage body,leaky pinhole,pulse high voltage, it will break through the air gap to discharge spark,at the same time ,the alarm will receive the pulse signal,and send out sound and light alarm,and then achieve the purpose of coating detection.

Use of the instrument

Preparation before the measurement

1) Insert the Multi -core connector into the socket while the other end of the cable connects with the high pressure probe;

2) Choose the appropriate probe according to the different detection needs；

3) Check the machine’s working condition:

① The indicator should be lit when the power button is pressed；

② Adjust the high voltage adjustment knob to the required voltage for detection；

③ Make the bare point of grounded long line close to the proble pole,there should be sparks,and accompanied by sound and light alarm, increase the output high pressure slowly,sparks are getting bigger and bigger,it means that the instrument is working properly,then you can start testing.

Start measuring

① When using the brush probe,Turn the brush probe into the top of the high pressure gun；

② Select the appropriate test voltage according to the thickness of the coating(look at

1.3.2 table),The voltage given by the table is generally an approximation,for reference only,and also can choose the detection voltage according to the detection standards provided by various industries.The detector turns on the power switch,The job light will be on,high voltage LCD display for the output high voltage,adjust the output knob,so that the LCD display value for the required high voltage.then turn on the high pressure gun switch,The instrument is in the working state;

③ Using the probe brush move slowly on the test object coating,If you see discharge spark(the length of the spark is related to the output voltage level),accompanied by sound and light alarm,it means that there is a crack in the coating；

④ After detection,The output adjustment knob should be adjusted to a minimum,make the switches back to its original state.After turn off the power,probe brush and host ground must be direct short-circuit discharge,can be stored.

Brand reputation

Mitech CO.,LTD. located in Beijing, China and was founded in 2004 by a group of doctors and masters graduated from tsinghua or Peking University. It is a professional NDT testing manufacturer, we have our own R&D office for newest and highest technology.

Over ten years, Mitech has always adhered to the business philosophy,

"Technology innovation for development, high quality service as the forward boat", relying on the mastered technology and the tireless pursuit for science and technology, Mitech continuously blends in leading-edge technology to NDT instrument R&D and application, makes the product performance and technical indicators reaching to the international leading level.

From NDT portable instrument to large automatic detection system. Mitech owns intellectual property rights of core technology and it has already applied for invention patents and software copyrights and passed international certification such as EU CE certification and Russian GOST certification etc. Mitech products has been widely used in quality control and safety monitoring of aerospace, petrochemical pipeline, military industry, nuclear industry, ship, automobile, metallurgy, steel structure manufacture, boiler pressure vessel and so on, do the best working for safe operation of industrial production.

Mitech users have spread all over the world such as Japan, Korea, India, Germany, USA etc. By the best quality with competitive price, Mitech had gained a good reputation from global customers. As the professional NDT manufacturer, Mitech will insist our rule of serving for world NDT industry for best and quick development. We are looking for NDT agents from all over the world and welcome knowledgeable people to join us for development.

As professional NDT manufacturer, Mitech will supply you best quality products with competitive price. Professional business team can provide more promotion support according to local market together with our comprehensive experience to help you do professional needs analysis and market protection, launch new products continuously to create more opportunities for long cooperation. Meanwhile, we will support you strong after-sale service to solve more trouble. Any product quality problem within 3 months, we will replace a new one for free, all products with warranty up to two years and life-long maintenance. We will provide maintenance training and accessories with cost price. Mitech has sound market management system to help you manage market precisely and share customer information, establish and standardize market system for long-time win-win cooperation.

Mitech devotes to creating the value for world NDT industry as own duty, unswerving to provide perfect products to the market, providing customers with conscientious service, sincere management to create famous brand.

Mitech is willing to cooperate with world NDT colleagues and makes the efforts for more brilliant tomorrow, struggling for more secure NDT world.