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and electronics. This is called delay line and zero
calibrated value for the transducer.
To perform a zero calibration, go to the Cal mode as
shown in Velocity Calibration Only section. Then while
measuring the thinner step, select ZERO by pressing F2.
After selecting ZERO, you can take the transducer off
the test block. If the displayed measurement is different
than the known value of the step, use the up or down
arrow key to adjust the displayed value to the known
value of the step. Press OK to perform the calibration.
The unit will briefly display the calibrated zero value in
the top of the screen and then return to measure mode.
Delay Line Calibration
Delay line calibration is done every time the thickness
gauge is powered on and a transducer is selected, or
when a different transducer is selected during normal
operation.
Delay line calibration is performed by measuring the
echo of the transducer itself when it is not placed on any
material and there is no couplant on the transducer
surface.
Under normal usage, the surface of the transducer wears
over time, which reduces sensitivity of the transducer.
When you power on any of the TKG series thickness
gauges and select a transducer, the gauge performs
automatic calculations and warns you (patent pending) if
