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8 TAKING A READING (continued)
8.2 TAKING A READING
1
Apply a small amount of couplant to the test surface.
2
Press the transducer into the couplant, making sure it is flat
against the surface.
Moderate pressure on the top of the transducer using the thumb or index
4
finger is sufficient; it is only necessary to keep the transducer stationary
and seated flat against the surface of the material.
3
The display will show a value which is constantly updating. The
gauge will take 4 readings per second when the transducer is
in contact with the surface of the material.
The stability of the reading is indicated on the stability bar to the right of
4
the display. A valid reading has a stability of 5 or more. If the stability
indicator has fewer than 5 bars showing or the numbers on the display
seem erratic, make sure there is an adequate film of couplant beneath the
transducer, and that the transducer is seated flat against the material. If
the condition persists, it may be necessary to select a different transducer
(size or frequency) for the material being measured.
4
The last reading is held on screen when the transducer is
removed from the surface.
Disclaimer: Inherent in ultrasonic thickness measurement is the possibility that
the instrument will use the second echo rather than the first echo
from the back surface of the material being measured while in
standard pulsed echo mode. This may result in a thickness reading
which is TWICE what it should be. The responsibility for proper use
of the instrument and recognition of these types of phenomenon
rests solely with the user of the instrument.
9 MENU STRUCTURE - MTG4
Menu
Calibration
Setup
About
Reset
Emergency Light
www.elcometer.com
Calibration
Calibrate
Cal Method
Zero Set
Factory Calibration
Setup
Reading
Units
Language
Beep Volume
Screen Settings
Gauge Auto Off
¡
About
Gauge Information
Transducer Information
Contact
Legal
Cal Method
¡
Material
1 Point
¡
Reading
Measurement Mode
Units
mm
¡
Inch
¡
Screen Settings
Screen Brightness
Screen Timeout
Opening Screen
¡
Legal
Legal Notices
Regulatory
Measurement Mode
Pulsed Echo (PE)
¡
Echo/Echo ThruPaint™ (EE)
¡
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