21
Once set, the internal clock of the instrument will maintain the current date and time.
4.32 Display the System Information
You can enter the INFO submenu to see the software version and the serial number of the instrument.
The VERSION and the S/N values are read-only. They cannot be modified by the user.
4.33 Resetting the Instrument
In case the instrument can no longer be operated, or you need to make a basic initialization (factory
setting), you can reset the instrument to original.
The instrument can be reset by the SYS RESET function. All the memory data, including the wave files,
the channel files and the video files, will be cleared during system reset. And the instrument settings will
be reset to default.
To reset the instrument
1
Activate the RESET submenu (in the MEM menu) by pressing the menu key below it.
2
Press the
and
key to select the SYS RESET function.
3
Press
key or turn the knob to trigger the reset action. It will prompt out “Reset to
original?”. Press the menu key below YES to confirm the reset operation. Or press the menu key below
NO to cancel the reset operation.
NOTE:
The effects of resetting the instrument may not be reversed.
No key action should be performed during resetting process.
4.34 Connecting to a Computer
The instrument is equipped with a USB port at the upper left of the instrument. The PC can be connected
with the instrument via the USB port. A-Scan display, instrument settings, and videos stored in the
memory of the instrument can be transferred to the computer through the USB port. Detailed information
of the communication software and its usage refer to the DataPro software manual.
5 Calibration and Measurement
Before working with the instrument, you have to calibrate the instrument: you have to adjust the material
velocity and display range and allow for the probe delay depending on the material and dimensions of
the test object.
To ensure a safe and proper operation of the instrument, it is necessary that the operator be adequately
trained in the field of ultrasonic testing technology.
Below you will find some examples of common calibration methods for certain test tasks.
5.1 Calibration with Straight- and Angle-Beam Probes
Case A: With Known Material Velocity
Calibration process
1
Set the known material velocity in VEL function.
2
Couple the probe to the calibration block.
3
Set the required display range in RANGE. The calibration echo must be displayed on the
screen.
4
Position the gate on one of the calibration echoes until the sound path of the echo is indicated in
the measurement line.
5
After this, change the adjustment of the function P-DELAY until the correct sound path for the
selected calibration echo is indicated in the measurement line.
Example:
You are carrying out the calibration with a straight probe for the calibration range of 300 mm via the
function group BASE using the calibration block DB-P (thickness 225 mm) which is laid flat-wise.
