LS221 Coating Thickness Gauge (2nd)
I.LS221 Coating Thickness Gauge Introduction
LS221 coating thickness gauge is also called coating thickness meter and paint thickness meter. It is a professional instrument for measuring the thickness of metal surface coatings. The host and the probe adopt a separate design, which is convenient for viewing data while testing under complex test conditions. It can be used in the laboratory and engineering field.
There are only four types of ferromagnetic metal elements at room temperature: iron, cobalt, nickel, and thorium.
Common non-ferromagnetic metals: copper, aluminum, magnesium, zinc, chromium, etc.
Hall effect: can be used for the measurement of non-ferromagnetic coatings on ferromagnetic metal substrates.
Eddy current: can be used for the measurement of non-conductive coatings on non-magnetic metal substrates.
| Measuring principles |
Substrate | Coating | Examples | Yes/No |
| Magnetic | Ferromagnetic materials: Iron, cobalt, nickel, thorium |
Non-ferromagnetic metal | 1.Galvanized iron 2.Iron copper plating |
√ |
| Non-metal materials | 1.Iron spray paint 2.Iron spray powder coating |
√ | ||
| Ferromagnetic materialIron, cobalt, nickel and thorium |
Iron nickel plating | × | ||
| Eddy current | Non-ferromagnetic metal: Copper, aluminum, magnesium,zinc, etc. |
Non-conductive material | 1. Anodized aluminum surface 2. Copper spray paint |
√ |
II.LS221 Coating Thickness Gauge Application
LS221 coating thickness gauge is widely used in metal processing industry, coating industry, hardware industry, shipbuilding industry, aerospace industry and other fields. The following pictures are a few examples of the practical application of the LS221 digital paint thickness gauge. (the following measurements are for reference only, not all)
III. LS221 Coating Thickness Gauge Parameters
| Parameter | LS221 Coating Thickness Gauge |
| Probe tip | Ruby fixed |
| Measuring principle | Fe:Hall Effect / NFe: Eddy current |
| Probe type | External cable probe |
| Measuring rang | 0.0-2000μm |
| Resolution | 0.1μm:（0μm -99.9μm) 1μm:(100μm-999μm) 0.01mm:(1.00mm-2.00mm) |
| Accuracy | ≤±(3% reading+2μm) |
| Unit | μm / mil |
| Measuring interval | 0.5s |
| Minimum measuring area | Ø = 25mm |
| Minimum curvature | Convex:5mm / Concave:25mm |
| Minimum substrate thickness | Fe:0.2mm / NFe:0.05mm |
| Display | 128×48 dot matrix LCD |
| Power supply | 2pcs of 1.5V AAA alkaline battery |
| Range of operation temperature | 0℃-50℃ |
| Storage temperature range | -20℃-60℃ |
| Host size | 101*62*28 mm |
| Probe size | 71*26*22 mm |
| Weight(with battery) | 114 g |
IV. LS221 Coating Thickness Gauge Characteristics
1. The LS221 coating thickness gauge adopt two measurement principles and can identify the substrate automatically. Measurement can be completed in 0.5 seconds.
2. Advanced digital probe technology can keep the zero position stable without drift and frequent zero adjustment.
3. Small size for carrying around.
4. Advanced technology solves the linearity problem of the LS221 coating thickness gauge. No calibration is required just simple zero adjustment to ensure the measurement accuracy.
LS221 coating thickness gauge accuracy test
5. The LS221 digital paint thickness gauge has high sensitivity probe, the test response speed is very fast and the data can be measured in 0.5 seconds.
6. With temperature compensation function and digitalizing analog signal function, these sensors are unsusceptible to interference.
7. Wear-proof ruby probe tip for long-term use with strong corrosion and abrasion resistance.
8. The LS221 coating thickness gauge has negative number display function to ensure the accuracy of the zero adjustment and improve the test accuracy.
9. Low power design, the current is less than 0.01uA in standby.
10. The LS221 coating thickness gauge has three measurement modes:Fe mode, NFe mode and Fe/NFe mode.
V. Product Qualification and Standards
1. LS221 coating thickness gauge conforms to the following standards：
GB/T 4956-2003 Non-magnetic Coatings on Magnetic Substrates-Measurement of Coating Thickness-Magnetic Method
GB/T 4957-2003 Non-conductive Coatings on Non-magnetic Basis Metals-Measurement of Coating Thickness-Eddy Current
DIN EN ISO 2808 Paints and Varnishes-Determination of Film Thickness
JJG-818-2005 Verification Regulation of Magnetic and Eddy Current Measuring Instrument for Coating Thickness
VI. LS221 Coating Thickness Gauge Operation Video
VII. LS221 Coating Thickness Gauge Packing Details
| No. | Item | Quantity | Unit |
| 1 | LS221 coating thickness gauge | 1 | Set |
| 2 | Fe plate of zero adjustment | 1 | Pcs |
| 3 | NFe plate of zero adjustment | 1 | Pcs |
| 4 | Instruction manual | 1 | Pcs |
| 5 | Standard film | 1 | Pcs |
| 6 | Certificate/Warranty card | 1 | Pcs |
| 7 | 1.5V AAA alkaline battery | 2 | Pcs |
VIII.Linshang Coating Thickness Gauge After-sales Service
The meter has one-year warranty. If the gauge works abnormally, please send the whole gauge to our company for maintenance
Provide users with spare parts and lifelong maintenance services
Provide the users with the meter inspection service
Free technical support for long term
Manufacturer: Shenzhen Linshang Technology Co.,Ltd. Website: www.linshangtech.com
Service hotline: 0755-86263411 Email: sales21@linshangtech.com
IX. FAQ about LS221 Coating Thickness Gauge
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1. The difference between LS220H and LS221
The functions and parameters of LS220H and LS221 are exactly the same, but the LS220H coating thickness gauge adopts an integrated design and can be operated with one hand; while the LS221 adopts a split design, the probe size is smaller, which is suitable for measuring narrow spaces and some special positions.
If you want to know more about the Linshang coating thickness gauge, Please click “Coating Thickness Gauge Selection and FAQ”.
X. Recommended Products
● Measure coating thickness on ferromagnetic and non-ferromagnetic metal substrates
● Measurement range: 0.0-2000μm
● Accuracy: ≤±(3% reading+2μm)
● Measure coating thickness on ferromagnetic and non-ferromagnetic metal substrates
● Fe:0.0-5000μm NFe:0.0-3000μm
● Accuracy: ≤±(3% reading+2μm)
● Measure plating thickness on ferromagnetic metal substrates
● Measurement range: 0-500μm
● Accuracy: ≤±(2%+0.3μm) after calibration of 1-5 points
● Test fixture is optional to eliminate the measurement errors