Mitech MT660 Ultrasonic Thickness Gauge

Mitech MT660 Multi Mode Ultrasonic Thickness Gauge

Product Overview

The Mitech MT660 is a professional-grade ultrasonic thickness gauge designed for high-accuracy, non-destructive testing in industrial environments. It supports both Pulse-Echo (P-E) and Echo-Echo (E-E) modes, enabling measurement of total thickness as well as base material thickness without the need to remove coatings. Built with a rugged aluminum-magnesium alloy housing and featuring a vibrant 320×240 color TFT LCD, the MT660 ensures durability, readability, and precision even in challenging work settings.

This model is ideal for field inspections, corrosion monitoring, and production quality control across a wide range of sectors, including oil and gas, shipbuilding, aerospace, and chemical manufacturing.

Key Features

• Dual Measurement Modes:
  Supports Pulse-Echo for total thickness and Echo-Echo for base material thickness through coatings.

• High Precision Measurement:
  Resolution up to 0.001 mm for detailed and accurate readings.

• Advanced Display:
  320×240 color TFT LCD with adjustable backlight for use in various lighting conditions.

• Intelligent Alerts:
  Visual warnings for out-of-range values help prevent measurement errors.

• Efficient Data Management:
  Stores up to 100 measurement groups, each with up to 100 readings. USB and Bluetooth support for easy data transfer.

• Long Battery Life:
  Operates for up to 30 hours using two AA batteries with power-saving functions.

• Enhanced Calibration Options:
  V-path correction and multi-point calibration ensure improved accuracy across different material types.

Applications

• Thickness testing of pipelines, pressure vessels, and storage tanks

• Inspection of coated surfaces without removing paint or insulation

• Measurement of metal, ceramic, plastic, glass, and composite materials

• Corrosion monitoring and wall thinning evaluation

• Quality assurance in manufacturing, shipbuilding, aerospace, and petrochemical sectors

Operating Principle

The MT660 works on the pulse-echo principle. An ultrasonic wave is sent into the material, and the device measures the time it takes for the wave to reflect back from the opposite surface. The thickness is calculated using the formula:

H = v × t / 2
Where:
H = Material thickness
v = Speed of sound in the material
t = Time of the echo round trip

Best Practices

• For pipes, align the probe perpendicular or parallel depending on diameter for optimal readings

• Use high-temperature probes for hot surfaces and calibrate at working temperatures

• Always calibrate on the specific batch when measuring laminated or composite materials

• Use appropriate couplants like glycerin, propylene glycol, or silicone oil for consistent sound transmission

• Avoid air gaps and poor coupling which can distort results

Technical Specifications

• Measuring range (P-E mode): 0.65 – 600 mm

• Measuring range (E-E mode): 3 – 60 mm

• Resolution: Selectable between 0.01 mm and 0.001 mm

• Accuracy: ±(0.5% H + 0.01 mm)

• Sound velocity range: 1000 – 9999 m/s

• Display: 320×240 color TFT LCD

• Measurement frequency: Up to 16 readings per second in scan mode

• Data storage: 100 groups × 100 readings

• Communication: USB and Bluetooth

• Operating temperature: -20°C to +60°C

• Storage temperature: -30°C to +70°C

• Humidity: ≤ 90% RH

• Battery type: 2 × AA batteries

• Battery life: Up to 30 hours

• Dimensions: 132 × 76 × 32 mm

• Main unit weight: 345 g

• Package dimensions: 31.5 × 24.5 × 8.5 cm

• Total weight: 1.6 kg

Maintenance and Storage

• Store in a clean, dry area away from corrosive gases and heavy dust

• Avoid unauthorized disassembly

• Use original packaging for transport

• Warranty support available with valid purchase documentation