- Vehicle Mode: The GM200A is designed for effortless measurement in automotive applications. With built-in data, calibration is not required. It accurately measures the coating thickness of iron, aluminum, and zinc substrates, making it ideal for assessing motor vehicle coatings. - User Mode: In user mode, calibration is necessary for each specific metal substrate. For instance, if you calibrate the device for iron, it will not measure the coating thickness of aluminum substrates. This feature allows for tailored measurements but requires careful calibration. - Measuring Device Functionality: The calibration done in user mode does not impact the vehicle mode; the factory default remains set to vehicle mode. The GM200A is factory calibrated using an iron substrate, ensuring reliable performance right out of the box. - Calibration Specifications: To ensure accurate measurements in user mode, the diameter of the substrate must be at least 50 mm, and its thickness must be a minimum of 0.5 mm. This guarantees that the GM200A can effectively measure coatings without interference. Use Scenarios: 1. Automotive Repair Shops: Quickly assess the thickness of coatings on various vehicle parts, ensuring compliance with industry standards. 2. Quality Control: Manufacturers can routinely measure the coating thickness of components to maintain product quality and performance. 3. Body Shops: Determine whether vehicles have been repainted or repaired by measuring the coating thickness on key areas. The GM200A combines precision, ease of use, and versatility, making it an essential tool for professionals in automotive and manufacturing fields.