Extech Instruments TKG250, Руководство пользователя

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TKG250 Ultrasonic Thickness Gauge
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LIABILITY
Ultrasonic testing is a function of using the proper equipment (electronics, transducer,
cable and couplant combination) for the inspection and a qualified operator who knows
how to use this manual, the instruments and all calibration procedures. The improper use
of this equipment, along with the improper calibration can cause serious damage to
components, factories, facilities, personal injury and even death. ALL FLIR SYSTEMS
ULTRASONIC THICKNESS GAUGES ARE NOT INTRINSICALLY SAFE AND
SHOULD NOT BE USED IN ANY HAZARDOUS OR EXPLOSIVE AREAS.
It is understood that the operator of this equipment is a well-trained inspector qualified by
either their own company or another outside agency to issue Ultrasonic Level I, 40 hour
class room training in Ultrasonic Theory. Flir Systems and any of its employees or
representatives shall not be held responsible for improper use of this equipment for its
intended use. Proper training, a complete understanding of Ultrasonic wave propagation,
thorough reading of this manual, proper transducer selection, correct zeroing of the
transducer, correct sound velocity, proper test blocks, proper cable length, proper
couplant selection all play a factor in successful ultrasonic thickness gaging. Special care
should be taken when test pieces have rough or painted surfaces, particularly those
applications where the test piece is thin to begin with as doubling of the echoes is
possible even if the transducer is capable of measuring the desired thickness. As
transducers wear or heat up, results can be either too thin due to a lack of sensitivity as a
result of wear or too thick due to heating up of the transducer, referred to as “drift.”