0 to 2000um Coating Thickness Gauge TM550FN with Magnetic Induction and Eddy Current Probes and USB Data Transmission for Coating Thickness Meter

The TM550FN is a compact coating thickness gauge designed for non-destructive measurement of coating thickness on both ferrous and non-ferrous substrates. It reliably measures non-magnetic coatings such as paint, enamel, and chrome on steel, as well as insulating coatings such as paint and anodizing on non-ferrous metals.

The internal probe supports both magnetic induction and eddy current principles, automatically detecting the substrate type (magnetic or non-magnetic), calculating the coating thickness, and displaying the result quickly.

Five data groups are available, and readings are automatically stored to memory for general groups (not for the direct group). Each group maintains its own statistics, alarm limit settings, and calibration. Users can easily recall and delete specified readings, and all operations are performed through a standard menu interface. Calibration can be started at any time with a single press of the CAL button.

• 128*128 dot matrix LCD display with standard menu operations
• Two measurement modes: single and continuous
• Two group modes: direct (DIR) and general (GEN). Readings are lost on power-off in direct mode and retained in general mode; each group stores up to 80 readings
• Zero point calibration and multi-point calibration (up to 4 points) for each group
• Recall or delete specified readings, or delete entire group readings
• Statistics display: mean, minimum, maximum, and standard deviation
• Three probe modes: auto, magnetic, and eddy current
• User-configurable high and low limit alarms for each group
• Automatic power-off
• USB interface for data transmission
• Low battery and error indication

1. Measuring principle: Magnetic induction (F-probe) and eddy current (N-probe)
2. Measuring range: 0 to 2000 µm
3. Accuracy: ±(3% of readings + 2 µm); ±(3% of readings + 0.078 mils)
4. Resolution: 0–999 µm (1 µm), 1000–1300 µm (0.01 mm); 0–39.39 mils (0.01 mils), 39.4–51.2 mils (0.1 mils)
5. Calibration: One- to four-point calibration and zero calibration
6. Data groups: One direct group (readings not stored to memory) and four general groups (readings stored), each with individual statistics, alarm settings, and calibration
7. Statistics: Number of readings, mean, minimum, maximum, and standard deviation
8. Units: µm, mm, and mils
9. Alarm: User-settable high/low alarm with an alarm icon displayed on the LCD when the limit is exceeded
10. Minimum curvature radius: Convex 1.5 mm (59 mils) and concave 25 mm (984 mils)
11. Minimum measuring size: Diameter 6 mm (236 mils)
12. Minimum substrate thickness: F-probe 0.5 mm (0.02"), N-probe 0.3 mm (0.012")
13. Computer interface: Data download via USB interface
14. Power supply: Two 1.5 V AAA batteries
15. Operating temperature: 0°C to 40°C (32°F to 104°F)
16. Storage temperature: −20°C to 70°C (−4°F to 158°F)
17. Dimensions: 110 mm * 53 mm * 24 mm (4.33" * 2.09" * 0.94")
18. Weight: 92 g (3.24 oz)