When the tool is making measurements, six or seven of the bars should be on. If fewer
than five bars are on, the
MX-3
is having difficulty achieving a stable measurement, and
the thickness value displayed will most likely be erroneous.
When the
MM
symbol is on, the
MX-3
is displaying a thickness value in millimeters.
When the
IN
symbol is on, the
MX-3
is displaying a thickness in inches. The maximum
thickness that can be displayed is 1999.9 mm or 19.999 inches.
When the
M
symbol is on, in conjunction with the
/s
symbol, the
MX-3
is displaying a
sound-velocity value in “meter-per-second“.
When the
IN
symbol is on, in conjunction with the
/µs
symbol,
MX-3
is displaying a sound-
velocity in “inches per-microsecond
“.
The Tranducer
The transducer transmits and receives the ultrasonic sound waves which the
MX-3
uses to
calculate the thickness of the material being measured. The transducer connects to the
MX-3
via the attached cable, and two coaxial connectors. The orientation of the dual coax-
ial connectors is not critical: either plug may be fitted to either socket in the
MX-3
.
The transducer must be used correctly in order for the
MX-3
to produce accurate, reliable
measurements.
Below is a short description of the transducer, followed by instructions for its use:
This is a bottom view of a typical transducer. The two semicircles of the wearface are visi-
ble, as is the barrier separating them. One of the semicircles is responsible for conducting
ultrasonic sound into the material being measured, and the other semi-circle is responsible
for conducting the echoed sound back into the transducer.
When the transducer is placed against the material being measured, it is the area
directly beneath the center of the wearface that is being measured.
This is a top view of a typical transducer. Press against the top with the thumb or
index finger to hold the transducer in place. Moderate pressure is sufficient, as it is only
necessary to keep the transducer stationary, and the wearface seated flat against the sur-
face of the material being measured.
Operation
MX-3
Manual
Rev:00
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