Features：

Capable of performing thickness measurements on a wide range of materials including metal

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

*s （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：

      Model

   Freq

   Diam

   Measuring Range

   Lower limit

   Description

       N05

   5MHz

   10mm

   1.0mm～600mm (in steel)

   Φ20mm×3.0mm

   Normal measurement

       N05/90°

   5MHz

   10mm

   1.0mm～600mm (in steel)

   Φ20mm×3.0mm

   Normal measurement

       N07

   7MHz

   6mm

   1.0mm～600mm (in steel)

   Φ15mm×2.0mm

   For thin pipe wall or small curvature pipe wall measurement

       HT5

   5MHz

   12mm

   1.0mm～600mm (in steel)

   30mm

   For high temperature (lower than 300℃) measurement

       N02

   2.5MHz

   14mm

   1.0mm～600mm (in steel)

   20mm

   For thick, highly attenuating, or highly scattering materials

       P5EE

   5MHz

   10mm

   Pulse-Echo:2.0mm-600mm (in steel)

Echo-Echo: 3.0mm-100mm (in steel)

   Φ20mm×3.0mm

   Trough-coating thickness testing

Configuration：

No.

   Type

   QTY

   Remarks

       Standard

Configuration

   1

   Main body

   1

       2

   Probe P5EE(5MHz)

   1

       3

   Probe N07(7MHz)

   1

       4

   Couplant

   1

       5

   Instrument case

   1

       6

   Operating manual

   1

       7                                                    

   Alkaline battery

   2

       8

   USB cable

   1

       9

   Datapro software

   1

       Optional

Configuration

   1

   Probe N05 (5MHz)

       2

   Probe HT5(5MHz)

       3

   Probe N02(2.5MHZ)

       4

   High temperature couplant