Portable Digital Hardness Tester 120mm×67mm×31mm Thickness Gauge MT660

Product Specification

MITECH MT660 Muti-mode Ultrasonic Thickness Gauge

Overview

MT660 multi-mode ultrasonic thickness gauge is the newest promoted upgraded product by Mitech. It pays more attention to user experience and functional innovation. Adopted with 320*240 colorful LCD display, it can show you clear measurement result under dim light and strong sunshine environment, improved the visual experience greatly. Sealed aluminum-magnesium alloy case delicate design, smaller volume, better quality are specially designed for defense against oil, dust in the bad sit environment. With intelligent warning function, it will promote automatically when beyond the setting range, it is convenient for reading. It can meet the efficient collecting material’s multiple points’ thickness accurate testing demand. It supports 0.001 high accuracy display and Bluetooth communication. With through coating mode and common mode, its unique performance of capable for testing thickness through the coating provides efficient solution for testing the workpiece of coated surface or corrosion materials. It can measure the workpiece directly without needing to get rid of the surface coating before measurement. It’s widely used for monitoring the production equipments’ various pipelines and pressure vessel corrosion reducing degree in the fields of petroleum, chemical, metallurgy, shipbuilding, aviation, aerospace and so on. It also can be used for making accurate measurement to various plates and machining parts. It is the necessary professional precision instrument for improving the production efficiency and qualification rate as well as saving cost.

Technical Parameters

Technical Specifications	Technical Parameters
Measuring Range	Support two working modes:Pulse-echo mode,(0.65～600)mm Echo-echo mode, (3～100)mm
Accuracy	±0.04mm(≤10mm)；±0.4%H(>10mm)；
Measurement Frequency	Single-point measurements per second 7 times, 16 times a second scan mode.
Display	320x240 TFT color LCD screen, adjustable backlight brightness
Resolution	0.1mm/0.01mm/0.001mm switchable
Sound Velocity Range	(1000～9999)m/s(it can measure the sound speed of material with known thickness)
Calibration	Zero calibration, two-point calibration, automatic error correction system
Working Modes	Single Point measurement, min/max measurement, differential measurement
Units	Metric/Imperial unit selectable
Working Languages	Chinese/English selectable
Memory	Memory for up to 100 files (up to 100 values for each file) of stored values
Communication Interface	Support bluetooth and USB2.0 communication, the host program can be updated online.
Power Source	Two “AA” Size, 1.5 volt alkaline batteries,operating time is more than 30 hours (ELbacklight off)
Data Printing	You can use portable bluetooth thermal printer to print measurement reports
Automatic Power Saving	Auto sleep and auto power off function to conserve battery life
Appearance Properties	Material: Aluminum-magnesium Alloy size: 120mm × 67mm × 31mm
Weight	317g

Features

• Capable of performing thickness measurements on a wide range of materials including metals (such steel, cast iron, aluminum, copper and so on), plastic, ceramics, composites, epoxies, glass and other ultrasonic well-conductive materials.
• Sealed metal case delicate design, special designed for defense against bad site environment, it can anti vibration, shock and electromagnetic interference.
• With HD colorful LCD display and intelligent operation interface, it can display the measurement results intuitively and provide a good display experience to user.
• With two thickness measurement modes: Pulse- Echo mode and Echo-Echo model, it can measure the thickness through the coating without calculating the coating thickness.
• With large storage capacity and lower power design, it can standby super long time above months.
• Attach with USB data proceeding software, it can connect with PC for data’s analysis, storage and printing.
• Capable for compatible with a variety of probes with different frequency and size.
• With high accuracy and high resolution display, it can support 0.001 display resolution.
• With probe-zero calibration and two point calibration functions, it can correct the system error automatically.
• Equipped with narrow impulse composite crystal high accuracy probe, it has small dead zone and accurate measurement.
• With high brightness EL backlight display, it is convenient for using in dim light environment.
• Support communication with Bluetooth printer on site, more conveniently for use.
• Auto alarm when exceeding the measuring range.
• With auto sleep, auto shutdown and other power saving functions as well as battery rest capacity indicating function.

Working Principle

The digital ultrasonic thickness gauge determines the thickness of a part or structure by accurately measuring the time required for a short ultrasonic pulse generated by a transducer to travel through the thickness of the material, reflect from the back or inside surface, and be returned to the transducer. The measured two-way transit time is divided by two to account for the down-and-back travel path, and then multiplied by the velocity of sound in the material. The result is expressed in the well-known relationship.

Where:

H－Thickness of the test piece.

v－Sound Velocity in the material.

t－The measured round-trip transit time.

To make sure the probe working properly, it needs to use couplant to isolate the air between the probe surface and the measured workpiece surface. The liquid used for the coupling between the probe and workpiece is called as couplant.

Transducer Selection

Configuration