phase II UTG-2900 Manual Download Page 13

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If the coupling status indicator does not appear not stable, or the numbers on the display seem erratic, check to

make sure that 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.

While the transducer is in contact with the material that is being measured, the instrument will perform four

measurements every second, updating its display as it does so. When the transducer is removed from the surface, the
display will hold the last measurement made.

Note

：

Occasionally, a small film of couplant will be drawn out between the transducer and the surface as the

transducer  is  removed.  When  this  happens,  the  gauge  may  perform  a  measurement  through  this  couplant  film,
resulting  in  a  measurement  that  is  larger  or  smaller  than  it  should  be.  This  phenomenon  is  obvious  when  one
thickness  value  is  observed  while  the  transducer  is  in  place,  and  another  value  is  observed  after  the  transducer  is
removed.  In  addition,  measurements  through  very  thick  paint  or  coatings  may  result  in  the  paint  or  coating  being
measured  rather  than  the  actual  material  intended.  The  responsibility  for  proper  use  of  the  instrument,  and
recognition of these types of phenomenon, rests solely with the user of the instrument.

4.5

Scan

mode

While the gauge excels at making single point measurements, it is sometimes desirable to examine a larger region,

searching for the thinnest point. The gauge includes a feature, called Scan Mode, which allows it to do just that.

In normal operation, the gauge performs and displays four measurements every second, which is quite adequate

for single measurements. In Scan Mode, however, the gauge performs ten measurements every second, and displays the
readings while scanning. While the transducer is in contact with the material being measured, the gauge is keeping
track of the lowest measurement it finds. The transducer may be “scrubbed” across a surface, and any brief

interruptions in the signal will be ignored. When the transducer loses contact with the surface for more than two
seconds, the gauge will display the smallest measurement it found. When the transducer is removed from the material
being scanned, the gauge will display the smallest measurement it found.

When the scan mode is turned off, the single point mode will be automatically turned on. Turn on/off the scan

mode by the following steps:

Press the

key to switch the scan measurement mode on and off. It will display the current condition of the

scan mode on the main screen.

4.6

Changing

Resolution

UTG‐2900 has selectable display resolution, which is 0.01” / 0.001” (0.1mm and 0.01mm).
Press the

key and the gauge will switch the resolution between “High” and “Low”.

4.7

Changing