M4-CYGMINI-TSR-M-ENG_Iss 1
Cygnus MINI ROV Operation Manual
Page 21 of 66
Calibrating to a Known Thickness using a TSR
The TSR display can be calibrated to a known thickness by using
the Gauge to measure a sample of the material that will be
measured. This method ensures the velocity of sound is set for the
actual material being measured rather than using a “generic”
value.
1.
Place and hold the Gauge’s ultrasonic probe on the material
sample,
using couplant if out of the water
You should have a stable thickness measurement on the
display
2.
Press the
MENU
key to display the
MENU
3.
The
CALIBRATE
menu option should be selected at the top
4.
Press the
EDIT
key to adjust the measurement value to the
known thickness of the sample being measured
Press the
OK
key to save and exit
5.
Repeat from step 1 to check the calibration is stable.
Display Hold Function
The middle key HOLD can be used to freeze the display and hold
the current thickness measurement.
1.
Press the
HOLD
key to freeze the display
2.
Press the
HOLD
key again to un-freeze the display
Automatic Display Backlight
The display backlight automatically turns off in bright light
conditions, it will automatically turn on when the ambient light
level drops.
Video Overlay Facility
The TSR can superimpose the thickness measurement on to a
video signal to display it on the monitor screen, and also on the
