CM8828FN coating thickness gauge is a kind of portable measureing instrument, can take fast, intact, precise measurement of coating thickness. It can not only be used in engineering field, laboratories, but also meet the demand of multiple measuring by using different probes. It is used widely in manufacturing, metal processing industry, chemical industry, commodity inspection filed,etc. As an essential instrument in material protection industry.
CM8828FN coating thickness gauge meets the following criteria:
Magnetics methods for measuring the thickness of non - magnetic coverings on magnetic metal substrates GB / T
GB / T 4957 ─ 1985 non-magnetic metal substrate non-conductive coating thickness measurement eddy current method
Magnetic and Eddy Current Coating Thickness Gauge JB / T
JJG 889 ─ 95 "magnetoresistive thickness gauge"
JJG 818 ─93 "eddy current thickness gauge"
CM8828FN Coating Thickness Gauge Features:
Two principles: Magnetic induction and eddy current.
Two measurement mode:Single and continuous
Metric/imperial system selectable.
Manual or automatic power off.
Automatic memory of calibration value,and automatic recognize the substrate.
Operation process have buzzing reminder
Integral Type have better stability and repeatability.
Separate type can provide several types of probes, measure can be more flexibility.
Use RS-232 data output to connect with PC.
Provide Bluetooth data output choice.
CM8828FN coating thickness gauge principle:
The CM8828FN Thickness Gauge utilizes both magnetic and eddy current measurements to nondestructively measure the thickness of non-magnetic coatings on magnetic metal substrates such as steel, iron, alloy and hard magnetic steel (eg, chromium, zinc, Copper, aluminum, enamel, rubber, paint, etc.) and non-magnetic metal substrates (such as copper, aluminum, zinc, tin, etc.) on the thickness of non-conductive coating (such as: enamel, rubber, paint, plastic, etc.).
A) Magnetic method (F type probe)
When TT280A coating thickness gauge touch probe and the cover layer, the probe and the magnetic metal matrix form a closed magnetic circuit, due to the presence of non-magnetic coating, so that the magnetic resistance of the magnetic circuit changes by measuring the change can be derived cover thickness of.
B) eddy current method (N type probe)
The use of high-frequency alternating current in the coil to produce an electromagnetic field, when the probe and the cover contact, the metal matrix generated eddy current, and probe feedback in the role of the coil, by measuring the size of the role of feedback can be derived coating thickness of.
CM8828FN coating thickness gauge technical parameters:
Accuracy:±1~3%n or ±2.5μm
Min. Radius Workpiece F type: convex 1.5mm/ concave25mm
NF type: convex 3mm/ concave50mm
Min. Measuring Area:6mm
Min. Sample thickness:0.3mm
Metric/Imperial : convertible