MT200 ultrasonic thickness gauge is an intelligent instrument, can measure a variety of metals and other materials thickness, and can measure velocity of voice through in materials. It can measure thickness of all kinds of pipes and pressure vessels, monitor them in the course of the extent of corrosion that made them thin. And it can measure a variety of plates and a variety of machining parts accurately. The instrument is widely used in petroleum, chemical industry, metallurgy, shipbuilding, aviation, aerospace and other fields.
Technical data:
·Measuring range: 0.75 ~ 300mm (steel)
·Display Accuracy: 0.01mm
·Measurement error: 1mm ~ 10mm: ± 0.05mm, 10mm ~ 200mm: (± 0.5% + 0.1) mm
·Pipe measurement limit (steel): Φ20mm × 2.0mm
·Measuring cycle: 2 times / sec
·Measurement Frequency: 5MHz
·Sound Velocity Range: 1000 ~ 9999m / s
·Display: 4-bit semi-digital LCD display, with cold light source lighting display
·Zero adjustment: probe put on test block of gauge, the button auto set reading to-zero
·Linear calibration: microprocessor automatically linear correction (i,e, V Path automatic compensation)
·Alarm function: to set limits on the gauge, when the outside measured value occurs, buzzer alarm automatically.
·Operating voltage: 3V (2 AA size alkaline batteries in series)
·Close: 2 minutes continuous without action, automatic shutdown. Equipped push buttons
·Display: thickness values, coupled status, power status, display CAL calibration status, velocity of sound
·Dimension: 132 × 76.2mm Total Weight: 345g
Main functions:
·Suitable for measuring thickness of metals (such as steel, cast iron, aluminum, copper, etc.), plastics, ceramics, glass, glass fiber and for measuring thickness of any other materials with good conductive ultrasonic wave
·Can be equipped with a variety of different frequencies and different crystal sizes of the probes for use.
·with a probe zero calibration, two points calibration functions, can automatically correct system errors;
·When thickness is known, it can measure velocity of sound, and can improve measurement accuracy;
·It has two modes for work: use single point to measure thickness, scan to measure thickness.
·Can be pre-set the limits of upper value and lower value, and will automatically alarm when the valaue beyond the scope.
·Has a prompt function of coupling state.
·EL backlight for easy use in dimly light environment.
·Has show remaining capacity of battery power function, display the remaining battery power in real-time.
·With automatic dormancy, automatic shutdown and power-saving functions, etc.
·With a RS232 interface, you can quickly and easily exchange data and set parameter with the PC. Can be connected to a micro-printer (factory default model), to print reports.
·It can be equipped with optional PC software , with abundant functions such as: transmission measurements, management of measurements data storage, measurements data statistical analysis, print reports of measurements, etc.
·A sealed metal enclosure, compact, portable, high reliability, suitable for harsh operating ambient, shock-proof, strike-proof, and anti-electromagnetic interference.
The working principle
·The ultrasonic thickness gauge measures thickness is based on as follow: when ultrasonic pulses generated by the probe through the coupling compound to reach the measured body, part of the ultrasonic signal is reflected from the bottom of the measured body. The probe received echo from the bottom of the measured body, and calculates the time of ultrasonic wave come-and-go accurately. Thickness values determined by following formula, and instrument displays the calculated results.
Where:
·H-measuring thickness;
·V-material velocity;
·t-ultrasound in the specimen in the round trip travel time.
·Instrument configuration
·Table 1: Instrument Configuration