Use of the product
Prompt: when measurements are being made, other key
operatios are invalid (except the power key).
1. Power on/off
Press the " � "key to power on and the back light turns on
automatically. Hold down " � "key for three seconds to power off.
2. Calibration operation
The instrument is calibrated properly before delivery. Users may
carry out recalibration if necessary. After power on, hold down
"Cal" key to enter calibration mode Apply the ultrasonic
coupling agent on the calibration block of the instrument and
place the probe on the center of the standard block. Take off the
probe after the reading is stable and press"�:'.;," key to complete the
calibration.
3. Selection and adjustment of sound speed
The sound speed of objects to be measured should be selected
before measurement of thickness. Press " ,);�.�; key to enter sound
speed display interface. Press" & " key or" T" key to select the
sound speed value of the material. If it is necessary to change
sound speed value, press " ,);��. " key to enter sound speed adjustment
state and press " & " key or "T" key to adjust it to the desired value.
VEL-
S9DD
m/s
II
-3-
4. Storage of thickness value
Press "Memory" key and the indicator begins flashing.
Press".&" key or "T" key to select storage unit (1-10). Then
press "Memory" key again after selection. The thickness value
in subsequent measurement will be stored in the unit
automatically. Every new value
will
overwrite the previous one.
-
'B"
' .u
mm
111-
The currently selected
------- storage unit
5. Measurement of thickness
The material thickness may be measured with use of the known
sound speed of material. Select sound speed before measurement
and apply coupling agent at the points to be measured.
Make
the
probe touch it slightly and press it against the points to be measured.
At the moment, the screen displays
coupling indicator" .. " . If the symbol
flashes or does not display, it indicates
bad coupling. With removal of the probe,
the indicator disappears.
-4-
..
2
mm
-
n
u