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MEWOI-ST220B-Ultrasonic Thickness meter,Ultrasonic Thickness Gauge, Sound Velocity thickness meter
1，INTRODUCTION
MEWOI-ST220B ultrasonic thickness gauge is used for measuring the thickness according to the principle of ultrasonic pulse reflection, and when the ultrasonic pulse transmitted by the probe reaches the material sub-interface through the object to be measured, the pulse is reflected back to the probe, The thickness of the measured material is determined by accurately measuring the time of propagation of the ultrasonic waves in the material. MEWOI-ST220B ultrasonic thickness gauge series is a kind of advanced non-destructive testing instrument, which integrates modern science and technology electronic technology and measurement technology. It adopts microcomputer to analyze, process and display the data in time, and adopts highly optimized measuring circuit. It has the characteristics of high precision, wide range, simple operation, stable and reliable operation. All kinds of materials, such as metals, plastics, ceramics, glass, which can make ultrasonic wave propagate at a constant speed, can be measured by this principle. It is widely used in petroleum, chemical, metallurgy, shipbuilding, aviation, aerospace and other fields. |
2，MAIN FEATURES
| 1，High resolution: when measuring the workpiece below 100mm, the display resolution is 0.01 mm; |
| 2，Automatic calibration zero: the system error can be corrected; |
| 3， the coupling prompt and the low voltage prompt, |
| 4，Shutdown mode: automatic shutdown (after three-minute operation); |
| 5，sound velocity adjustment: can use known thickness test block to measure sound velocity; |
| 6，data storage: can store 10 thicknessvalues and 5 sound velocity values |
3，TECHNICAL SPECIFICAITON
| Model No. | MEWOI-ST220B(Ultra High temperature type) |
| Measuring Range | 0.8—300mm |
| Display resolution | 0.01mm |
| Sound velocity range | 1000—9999m/s |
| Standard thickness film | 4.0mm |
| Surface temperature of workpiece | -10―450℃ |
| liquid-crystal display | Four-digit LCD display |
| Indicating error | Measuring range: 0.75-9.99mm, the resolution is 0.01mm, the tolerance is ±0.05mm; |
| Measuring range: 0.75-90.99mm, the resolution is 0.01mm and the tolerance is ±(1%H+0.04)mm; | |
| Measuring range: 100-300mm, the resolution is 0.1mm, the tolerance is ±3‰H; | |
| Pipe measuring lower limit | ¢20mm thickness 3.0mm (5P¢10 probe, steel) |
| ¢6mm thickness 1.5mm (10P¢4 probe, steel) | |
| Operate time | Continuous operation for 250 hours (2*1.5V AA alkaline batteries) |
| Sound Velocity | 1000m/s-9999m/s |
| Outline dimension | 126×66×27mm |
| Weight | 170g |
Standard layout | Host 5p¢10 probe; instrument box, random data, coupling agent; |
| (MEWOI-ST220/220B plus, high temperature probe and coupling agent; MEWOI-ST250 plus high temperature probe or cast iron probe optional; MEWOI-ST240 optional plus cast iron probe) | |
| Optional attachment | 2MHZ probe (3-300mm); 7.52MHZ probe (0.15-60mm);, 5P¢6mm (¢20 thickness 3.0mm or more); 10P¢4mm (¢6 thickness 1.5mm or more); |
| Power Supply | 2x1.5V AA Battery |
SELECTION GUIDE
| Model No. | Type | Surface temperature of workpiece | Measuring Range | Resolution | Sound velocity range | Standard thickness film | Pipe measuring lower limit |
| Universal | -10―60℃ | 0.8—300mm | 0.1mm | 1000—9999m/s | 4.0mm | ¢20mm thickness 3.0mm (5P¢10 probe, steel),¢6mm thickness 1.5mm (10P¢4 probe, steel) |
| Universal(Steel Special) | -10―60℃ | 0.8—300mm | 0.1mm | 1000—9999m/s | 4.0mm | |
| High temperature type | -10―300℃ | 0.8—300mm | 0.01mm | 1000—9999m/s | 4.0mm | |
| Ultra high temperature type | -10―450℃ | 0.8—300mm | 0.01mm | 1000—9999m/s | 4.0mm | |
| Precision type | -10―60℃ | 0.75-300mm | 0.01mm | 1000—9999m/s | 4.0mm | |
| Precision type(With cast iron function) | -10―60℃ | 0.75-300mm (cast iron function 3-300mm) | 0.01mm | 1000—9999m/s | 4.0mm | |
| Precision type(With high temperature, cast iron function) | -10―450℃ | 0.75-300mm (cast iron function 3-300mm) | 0.01mm | 1000—9999m/s | 4.0mm | |
| Smart | -10―60℃ | 0.75-300mm Steel | 0.1mm/0.01mm | 1000—9999m/s | 4.0mm | ¢20mm thickness 3.0mm (5P¢10 probe, steel),¢6mm thickness 1.5mm (10P¢4 probe, steel) |
| Smart | -10―60℃ | 0.75-300mm Steel | 0.1mm/0.01mm | 1000—9999m/s | 4.0mm | |
| Intelligent high temperature type | -10―300℃ | 0.75-300mm Steel | 0.1mm/0.01mm | 1000—9999m/s | 4.0mm | |
| Intelligent high temperature type | -10―450℃ | 0.75-300mm Steel | 0.1mm/0.01mm | 1000—9999m/s | 4.0mm | |
| Intelligent cast iron | -10―60℃ | 5.0-60mm cast iron 1.2-300mm steel | 0.1mm/0.01mm | 1000—9999m/s | 4.0mm | |
| Hola | -10―60℃ | 0.13-20mm steel | 0.01mm/0.001mm | 1000—9999m/s | 4.0mm | |
| Universal | 0~50ºC (60-300ºC Optional) | 0.75-300.0mm(determined by probe) | 0.1mm | 1000m/s-9999m/s | ≥20mm(Accuracy: ±5%) | Φ15x2.0mmΦ20x3.0Determined By Transducer |
| Universal | 0~50ºC (60-300ºC Optional) | 1.5~200mm/0.06~8inch | 0.1mm, ±（0.5%n+0.2） | × | ||
| Precision type （Steel Case） | 0~50ºC (60-300ºC Optional) | 0.75~400mm(45#steel,Depend on Probe) | 0.01mm/0.1mm （±（0.5%n+0.05）） | 1000m/s-9999m/s | Φ15x2.0mmΦ20x3.0mm Determined By Transducer | |
| Universal | -10―60℃ | 0.75~600mm (0.03~11.8inch) depends on probe | 0.01mm/0.1mm （±（0.5%n+0.05）） | 1000~9999m/s (0.039~0.394in/us) | ±(0.5%Thickness+0.04)mm | Φ15x2.0mmΦ20x3.0mm Determined By Transducer |
