Extech Instruments
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TKG100_TKG150 Ultrasonic Thickness Gauge User Guide v2.8 11/13
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Not enough couplant
Surface is too rough or rusty
Low Transducer sensitivity
Temperature is too high
Dis-bond exists between the coating and the
steel
In the event you try to save a reading in LOS with the
TKG150, the
Notes
screen will automatically appear so
that a reason is given for saving an LOS. You can scroll
to the appropriate note and press the soft Save key.
Using the Hold Option
If a LOS occurs, the gauge can continue to display the
last measured thickness by “holding” or freezing the
measurement.
