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The responsibility for a proper use of the instrument, as well as the recognition of
these types of phenomenon solely depends on the user of this instrument.
4.4.1 Change of measuring sound velocity
In appendix A you find the different sound velocities, that are to be applied for meas-
uring the different materials.
To change the sound velocity of your instrument please proceeds as follows:
1.
Press the CAL key twice until M/S symbol begins to flash.
2.
Then, press the SCAN or ALARM key to change the sound velocity
3.
To safe the settings, please press the Cal key.
4.5 Scan mode
While the instrument excels in making single point measurements, it is sometimes
necessary to examine a larger region, searching for the thinnest point. This instru-
ment includes a feature, called SCAN- Mode, which allows to do just that.
During normal operation, it performs and displays four measurements every second
which is adequate for single measurements. In SCAN- Mode, however, the instru-
ment performs ten measurements every second and displays the readings while
scanning. While the transducer is in contact with the material to be measured, it is
always keeping track to finding the lowest measurements. The transducer may be
"scrubbed" across the surface, any brief interruptions of the signal will be ignored. If it
loses contact with the surface for more than two seconds, the instrument will display
the smallest measurement it found.
If the SCAN- Mode is turned off, Single point Mode will be automatically turned on.
The SCAN- Mode is turned on/ off by the following steps:
The
key has to be pressed to switch on/ off the SCAN- Mode. The current condi-
tion of it will be displayed on the display.
4.6 Changing resolution
The instrument TN xx-0.01 US has got a selectable display resolution, which is 0.1
and 0.01mm.
If the key
is pressed while turning on the instrument,
The resolution will be switched between "high" and "low".
This function is not available for TN xx-0.1 US, which is fixed to 0.1mm.
4.7 Changing units
On the measurement mode, the key
between imperial and metric units.
TN_US-BA-e-1814
has to be pressed to switch back and forth
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