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TMTECK Ultrasonic thickness gauge TM290 High Precision

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Product Detail

Product Tags

IMG_8532   A scan-2

                 1.Digital display mode                                        2.A scan mode ( Standard probe TM15-15Mhz)

●TM290 is a new type of handheld high-precision digital ultrasonic thickness gauge with A/B scanning. It adopts the principle of ultrasonic thickness measurement based on pulse reflection. It is suitable for the measurement of material thickness that can make ultrasonic wave propagate in it at a constant speed and get the reflection from its back. The measurement resolution is 0.001mm and the measurement range is as thin as 0.15mm (steel).
●This product can accurately measure plates and processed parts. On the other hand, it can monitor the thinning degree of pipes and pressure vessels in production equipment after corrosion during use. It can be used in petroleum, chemical industry, metallurgy, shipbuilding, aerospace, energy and other fields.
●This product complies with the following standards: Calibration Specification for ultrasonic thickness gauge (JJF 1126-2004).

 

Main Function Characteristics

● This product has A-scan mode, B-scan mode and numerical display mode;

● The measurement range is wide, and the unique "multiple echo" technology is adopted to realize the measurement of ultra-thin parts, with a minimum measurement thickness of 0.15mm (steel);

● This product can measure the thickness with high precision, and the maximum measurement resolution can reach 0.001mm; The repetition resolution can reach ± 0.002mm;

● It has the functions of penetrating coating and echo to echo measurement, which is used to measure materials with paint layer and coating on the surface;

● Multiple measurement modes: mb-e, E-E and me-e modes meet the measurement of conventional thick workpieces; Thin mode realizes the measurement of thin parts;

● Numerical modes include: conventional thickness value mode, difference / reduction rate mode and maximum value mode;

● Two gain modes: automatic gain / manual gain;

● Manual shutdown and automatic shutdown can be set, with energy-saving function;

● It supports a variety of probes, including double crystal probe and single crystal probe, and supports up to 20MHz high-frequency probe;

● It supports mass storage and can store 100000 thickness values, 500 groups of A-scan waveforms and 500 groups of B-scan waveforms at the same time;

● Large 3.5-inch color TFT-LCD display with 320x240 high definition (QVGA) resolution;

● It has a variety of calibration methods, supports one-point calibration, multi-point calibration and manual calibration modes, and can calibrate sound velocity and probe zero position at the same time; It supports v-path correction of double crystal probe.

● It supports the conversion of metric and British system; It can switch between millimeter and inch units;

● It supports Chinese and English display;

 

 Applicable Materials

It is suitable for measuring the thickness of metals (such as steel, cast iron, aluminum, copper, etc.), plastics, ceramics, glass, resin, glass fiber and other good ultrasonic conductors.

 

 Basic Principles

The principle of ultrasonic thickness measurement is similar to that of light wave measurement. The ultrasonic pulse emitted by the probe reaches the measured object and propagates in the object. When it reaches the material interface, it is reflected back to the probe. The thickness of the measured material is determined by accurately measuring the time of ultrasonic propagation in the material.

 

Specification Parameters

* Note: the company reserves the right to make technical modifications without prior notice.

Item

TM290

Probe type

Single crystal probe / double crystal probe

Measuring range (45# steel)

0.15mm – 1800mm

Indication error(<10mm)

±0.005mm

Indication error(≥10mm)

±0.1%

Repeatability error

±0.001mm(Self test)

Indication stability

Zero crossing and multiple echo technology are adopted to ensure that the thickness measurement value is not affected by echo strength, material attenuation coefficient, gain and gate height, and has high measurement stability and reliability.

Measurement frequency

4Hz、8Hz、16Hz

Resolution

0.1mm、0.01mm、0.001mm(0.01inch、0.001inch、0.0001inch)

Pulse generator

Negative square wave emission is adopted, and the pulse width and voltage are automatically matched with the probe.

Sound velocity range

400-19999m/s   

Calibration block

4mm(steel)

Automatic shutdown

One can choose 5 minutes, 10 minutes, 20 minutes and manual shutdown.

Probe calibration

One point calibration, multi-point calibration

gain

Automatic gain control, Manual gain control

Gain range

0~70dB

Detection mode

Radio frequency (RF), positive half wave (POS), negative half wave (NEG), full wave (FULL)

Measurement mode

(1) MB-E: the measurement mode based on the transit time from the initial echo to the first bottom echo; (2) E-E: penetration coating measurement mode, the arbitrary Em–En echo is optional; (3) ME-E: multiple echo measurement mode; (4) THIN: thin wall measurement mode;

Numerical mode

Thickness value mode, difference / reduction rate mode, maximum / minimum value mode

A-scan mode

Available

B-scan mode

Available

Coupling indication

Available

Battery Indication

Available

Language

Chinese / English

Unit

mm/inch

Menu operation

Available

Software function

Dynamic gate setting, blanking setting (Blank), echo blanking setting (E-blank), echo freezing, echo translation and scaling

Storage function

It can store 100,000 thicknesses (100 groups, 1000 in each group), 500 groups of A-scan waveforms and 500 groups of B-scan waveforms at the same time.

Host program upgrade

Available

Display

3.5 "QVGA (320 × 240) color TFT-LCD screen

Data transmission

It supports RS-232 serial communication and transmits data to the computer.

Working temperature

-10℃~+50℃; With special requirements, it can reach - 20 ℃;

Working voltage

Four No. 5 AA batteries are required. When the power is insufficient, there is a low voltage prompt.

Overall dimension

204 x 100 x 36 (mm)

Total Weight

310 g(Without battery)

Optional probes

Single
Element
probe
Model Specification Testing Range Resolution
DTM15 (Standard) 15MHz  6mm 0.15-24 0.001mm
DTM7.5 7.5Mhz 6mm 0.5-24 0.001mm
DTM10 10Mhz  6mm 0.3-24 0.001mm
DTM5 5MHz  6mm 1.0-24 0.001mm
BD510 5Mhz 10mm 1-1000 0.001mm
BD212 2Mhz 12mm 4-1800 0.001mm
Dual
Element
Probe
TC400 10Mhz  5mm 0.5-50 0.001mm
TC500 5 MHz 5mm 1.0-65 0.001mm
TC510 5 MHz 10mm 1.0-500 0.001mm

 

NDT certificate

NDT1

NDT2


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