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MT200
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Digital Ultrasonic Thickness Gauge
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Specifications
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Technical Specifications
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Technical Parameters
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Display
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4.5
digits LCD with EL backlight
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Measuring Range
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(0.75 ~ 300) mm (in Steel)
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Sound
Velocity Range
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(300
~ 19999) m/s
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Resolution
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0.1/0.01 mm
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Accuracy
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+/-(0.5%
Thickness +0.01) mm
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Measurement Frequency
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Single-point measurements per second four times,
10 times a second scan mode
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Storage
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Memory
for 100 files (up to 100 values for each file) of stored values
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Alarm Function
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Upper and lower limit can be pre-set. It will alarm
automatically when
the result value exceeding the
limit.
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Power
Supply
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Two
AA size, 1.5 volt alkaline batteries
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Working Time
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100 hours typical operating time (EL backlight off)
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Communication
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USB2.0
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Outline
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Extruded aluminum body suitable for use under poor working
conditions
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Outline
Dimension
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132
mm x 76 mm x 32 mm
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Weight
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345 g
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Features
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§ Suitable
for measuring metal (such as steel, cast iron, aluminum, copper, etc.),
plastics, ceramics, glass, fiber glass and any other good ultrasonic
conductors.
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§ Dual
straight beam probes with different frequencies and crystal sizes are
available.
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§ Zero
calibration, two-point calibration, automatic error correction system.
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§ Known
thickness, sound speed can be measured, in order to improve the measurement
accuracy.
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§ Coupling
status indicator showing the coupling status.
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§ EL
backlight for easy use in dimly lit environments.
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§ Remaining
battery indicator can display the remaining power in real time.
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§ Auto
sleep and auto power off function to conserve battery life.
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§ Small,
portable, high reliability for harsh operating environment, anti-vibration,
anti-shock and anti-electromagnetic
interference.
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Measuring Principle
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The
digital ultrasonic thickness gauge determines the thickness of a part or
structure by accurately measuring
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the
time required for a short ultrasonic pulse generated by a transducer to
travel through the thickness of the
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material, reflect
from the back or inside surface, and be returned to the transducer. The measured
two-way
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transit
time is divided by two to account for the down-and-back travel path, and then
multiplied by the
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velocity of sound
in the material. The result is expressed in the well-known relationship.
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To
make sure the probe working properly, it needs to use couplant
to isolate the air between the probe surface
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and the
measured workpiece surface. The liquid used for the coupling between the
probe and workpiece is
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called as couplant.
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