Coating thickness can be non-destructive measurement of magnetic metal substrates (such as steel, iron, alloy and hard magnetic steel, etc.) on the thickness of non-magnetic coatings (such as aluminum, chromium, copper, enamel, rubber, paint, etc.) and non-magnetic non-conductive coating thickness of the metal substrate (such as copper, aluminum, zinc, tin, etc.) (eg: enamel, rubber, paint, plastics, etc.). Coating thickness gauge with a measurement error is small, high reliability, good stability, easy operation, etc., is essential to ensure product quality control and testing equipment, widely used in manufacturing, metal processing industry, chemical industry, commodity inspection and testing fields. 1. Before use, the operator should carefully read the instrument manual, in strict accordance with practices used to protect the instrument hardness series, prevent fall, touch and temperature, not near a wet and corrosive gases. To select the appropriate ground 2. testing to ensure quality testing. (1) small size metal surface coating detection, to support the object to be detected by an insulator than 20cm, then good grounding wire connected to the metal object detection. (2) for large volume or flat object detection, when the object has a good contact with the ground when the hardness of Qingdao, just to test the ground wire to earth. 3. The testing process, testing personnel should wear high-voltage insulated gloves, no person shall contact probe and the measured object hardness to prevent electric shock! ! ! The measured surface coating should be kept dry, if stained with a conductive layer (dust) or water, not easy to determine the precise location of the leak. 5. When not in use hardness tester manufacturers, be sure to hit the power switch in the "off" position! ! ! 6. When the voltage indicator lights, be sure to charge it in time! ! ! 7. The detector is equipped with high and low for the user to select the two probes, panel meter readings should be used depending on the probe may be. If using high-voltage probe, meter readings above figures prevail, whereas at places with low pressure probe following figures prevail. Hardness series, hardness, Jinke instrumentation provided by Qingdao Branch of the Instrument Co., Ltd.. Qingdao Branch of the Instrument Co., Ltd. (www.qdjk17.com) strong, credible, in Qingdao, Shandong analytical instruments industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Branch of the Instrument and you hand in hand into the brilliant, for a better future!