86221 Coating Thickness Gauge
Measuring range: 0.0-2000μm
High accuracy and good stability
Dual use on ferrous/non-ferrous substrates
Unique split type design, can be used in narrow space
The 86221 Coating Thickness Gauge is a specialist instrument for measuring the thickness of coatings on metal surfaces. The instrument combines the Hall effect and Eddy current principles to measure the thickness of non-ferromagnetic coatings on ferromagnetic metal substrates and the thickness of non-conductive coatings on non-magnetic metal substrates. The host and probe of 86221 is separate, which makes it easy for the user to view the data under complex testing conditions. It can be used in the laboratory and engineering field.
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.
There are only four types of ferromagnetic metal elements at room temperature: iron, cobalt, nickel, and gadolinium.
Common non-ferromagnetic metals: copper, aluminum, zinc, chromium, etc.
| Measuring principles |
Substrate | Coating | Examples | Yes/No |
|---|---|---|---|---|
| Hall Effect | Ferromagnetic materials: Iron, cobalt, nickel, gadolinium |
Non-ferromagnetic metal | 1. Galvanized iron 2. Iron copper plating |
√ |
| Non-metal materials | 1. Iron spray paint 2. Iron spray powder coating |
√ | ||
| Ferromagnetic material: Iron, cobalt, nickel and gadolinium |
Iron nickel plating | × | ||
| Eddy current | Non-ferromagnetic metal: Copper, aluminum, zinc, etc. |
Non-conductive material | 1. Anodized aluminum surface 2. Copper spray paint |
√ |
Application
86221 Coating Thickness Gauge is widely used in metal processing, coating, hardware, shipbuilding, aerospace and other fields.
86221 Coating Thickness Gauge tests the coating on fire extinguisher
86221 Coating Thickness Gauge tests the coating on ferrous material
86221 Coating Thickness Gauge tests the coating on aluminum window sill
86221 Coating Thickness Gauge tests the coating on the Cabinets
Parameter
| Parameter | 86221 Coating Thickness Gauge |
|---|---|
| Probe tip | Ruby fixed |
| Measuring principle | Ferrous: Hall Effect / Non-Ferrous : Eddy current |
| Probe type | External cable probe |
| Measuring range | 0.0-5000μm |
| 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 |
| Operation temperature range | 0℃-50℃ |
| Storage temperature range | -20℃-60℃ |
| Host size | 101*62*28 mm |
| Probe size | 71*26*22 mm |
| Weight (with battery) | 114 g |
Feature
Iron and aluminum dual use, Identify substrate automatically
The 86221 coating thickness gauge adopt two measurement principles and can identify the substrate automatically. Measurement can be completed in 0.5 seconds.
86221 tests ferrous substrate in automatic mode
86221 tests aluminum substrate in automatic mode
Three measurement modes available
The 86221 coating thickness gauge has three measurement modes:Fe mode, NFe mode and Fe/NFe mode.
Portable and Convenient
The 86221 dry film thickness gauge has simple design and small size. It is easy to carry and operate.
High sensitivity probe, High response speed
The 86221 digital paint thickness gauge has high sensitivity probe, the test response speed is very high and the data can be measured in 0.5 seconds.
Rugged probe
Wear-proof ruby probe tip for long-term use with strong corrosion and abrasion resistance.
Negative number display function to ensure the accuracy of the zero adjustment and improve the test accuracy
Not susceptible to interference due to temperature compensation technology and analogue digital signal functions
Energy saving and low energy consumption
Qualifications and Standards
86221 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
Packing
| No. | Item | Quantity | Unit |
|---|---|---|---|
| 1 | 86221 coating thickness gauge | 1 | Set |
| 2 | Fe plate of zero adjustment | 1 | Pcs |
| 3 | NFe plate of zero adjustment | 1 | Pcs |
| 4 | User manual | 1 | Pcs |
| 5 | Standard film | 1 | Pcs |
| 6 | Certificate/Warranty card | 1 | Pcs |
| 7 | 1.5V AAA alkaline battery | 2 | Pcs |
FAQ
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1. The difference between 86220H and 86221
The functions and parameters of 86220H and 86221 are exactly the same, but the 86220H coating thickness gauge adopts an integrated design and can be operated with one hand; while the 86221 adopts a split design, the probe size is smaller, which is suitable for measuring narrow spaces and some special positions.