Ultrasonic Thickness Meter TM-8819-T3
Advanced ultrasonic measurement device designed to eliminate coating thickness interference for accurate substrate measurements.
Applications
Used for measuring thickness and corrosion of pressure vessels, chemical equipment, boilers, oil storage tanks, and various industrial components. Essential for industries including petroleum, shipbuilding, power generation, and machine manufacturing.
Compatible materials: Steel, Cast iron, Aluminum, Red copper, Brass, Zinc, Quartz glass, Polyethylene, PVC, Gray cast iron, Nodular cast iron.
Measurement Principle
The digital ultrasonic thickness gauge determines material thickness by precisely measuring the time required for ultrasonic pulses to travel through the material, reflect from the back surface, and return to the transducer. The two-way transit time is calculated and multiplied by the material's sound velocity for accurate thickness determination.
Key Features
- Multi-mode operation: Pulse-Echo mode for flaw and pit detection, Echo-Echo mode for measurements eliminating paint or coating thickness
- High emission power and broad receiving sensitivity compatible with various frequency probes
- Effective measurement of rough surfaces including cast iron
- Automatic memory for material codes and sound velocity values
- Coupling symbol indication during measurement
- Manual or automatic power off functionality
Technical Specifications
| Parameter |
Specification |
| Unit System |
Metric system or British system (optional) |
| Display |
LCD with backlight |
| Measurement Range |
Pulse-Echo mode: 1.0-300 mm (in Steel)
Echo-Echo mode: 3-30 mm |
| Resolution |
0.1mm / 0.01mm / 0.001inch |
| Accuracy |
±(0.5%n + 0.05mm), depends on materials and conditions |
| Measurement Period |
4 times per second (single point mode)
10 times per second (scan mode) |
| Sound Velocity |
1000-9999 m/s |
| Memory Capacity |
Up to 20 files (99 values per file) |
| Working Modes |
Single point mode and scan mode |
| Operating Conditions |
Temperature: 0-40°C
Humidity: <85% RH |
| Power Supply |
4x1.5V AAA (UM-4) Battery |
| Dimensions |
142mm x 72mm x 34mm |
| Weight |
175g (excluding batteries) |
Standard Accessories
Main Unit, Standard Probe, Coupling Agent, Carrying Case (B04), Operation Manual
Optional Accessories
Special-purpose Probes, RS-232C Data Cable with Software, Bluetooth Data Adapter with Software