Overview
LEEB Leeb252C Coating thickness gauge is a magnetic, eddy current integrated portable Coating thickness gauge, which can quickly and non-destructive measurement of coating and platings Film thickness. It can be used in both laboratories and engineering sites. It is widely used in manufacturing, metal processing, chemical industry, commodity inspection and other testing fields. It is an important instrument for material protection.
Features
1. Using magnetic and eddy current two thickness measurement methods, it can measure magnetic metal substrate nonmagnetic film thickness and nonmagnetic metal substrate nonconductive film thickness
2. With continuous measurement and single measurement two measurement methods
3. High Accuracy Measurement mode, Fast Measurement mode and Real-time scanning function
4. With temperature compensation function, automatically compensate for measurement errors caused by changes in environment temperature and probe temperature
5. There are five statistics: mean, MAX Maximum, MIN Minimum, number of tests, standard deviation
6. Support zero point calibrating, single point calibrating or two point calibrating method
7. With storage function, up to 500 measurement values can be stored
8. With delete function, you can delete suspicious data or all stored data
9. Limit can be set, and the measurement value outside the limit will be automatically alarmed
10. With power indicator function
11. There is a beep prompt during the operation
12. Provide three shutdown methods: manual shutdown, automatic shutdown after timeout and automatic shutdown with low battery
Principle
This instrument uses magnetic and eddy current thickness measurement methods. Magnetic method (F-type probe): When the probe is in contact with the cover layer, the probe and the magnetic metal substrate form a closed magnetic circuit. Due to the existence of the nonmagnetic cover layer, the magnetic circuit magnetoresistance changes, and the film thickness of the cover layer can be measured by the amount of magnetoresistance change. Eddy current method (N-type probe): using high-frequency alternating current to generate an electromagnetic field in the coil, when the probe is in contact with the cover layer, eddy Current is generated on the metal substrate and a feedback effect is generated on the probe coil. The film thickness of the cover layer can be derived by measuring the size of the feedback effect.
Applications
Manufacturing, metal processing, chemical industry, commodity inspection
Standards
GB/T 4956-1985、GB/T 4957-1985、JB/T 8393-1996、JJG 889-95、JJG 818-93
Steps
1. Measurement mode: High Accuracy Measurement mode or Fast Measurement mode
2. Instrument calibrating: zero point calibrating, single point calibrating or two point calibrating method can be used
3. Start measurement: choose continuous measurement or single measurement
4. View statistical results: including average, MAX Maximum, MIN Minimum, number of tests, standard deviation
Storage of measurement data: up to 500 measurements can be stored
6. Manage data: Delete individual suspicious data or all stored data
7. Set the limit: automatic alarm on the measurement value outside the limit
8. Shutdown: You can choose manual shutdown, automatic shutdown after timeout or automatic shutdown with low battery.
Notice
• Before measurement, calibrate to ensure measurement accuracy
• Note the ambient temperature range: 0~ 40 ℃
• Pay attention to the environment Humidity range: 20%~ 90%
• Ensure that the probe is in full contact with the cover layer
• Pay attention to the minimum curvature radius requirements: convex 1.5mm, concave 3mm
• Pay attention to the minimum area diameter requirements: φ 7mm/φ 5mm
• Note the basic critical Film thickness: 0.5mm/0.3mm
• Regularly check the battery level
• Avoid use in strong electromagnetic interference environments
Be aware of capacity limitations when storing data
