Checkline TI-25PX, Руководство по эксплуатации

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2.0 KEYPAD, MENU, DISPLAY & CONNECTORS
The Keypad
2.1 ON/OFF/ENTER Key
The ON/OFF/ENTER key powers the unit ON or OFF. Since the same key is
also used as an ENTER key, the gauge is powered off by pressing and holding
down the key until the unit powers off.
Once the gauge is initially powered on, this key will function as the ENTER key, similar
to a computer keyboard. This key will be used to select or set a menu option.
NOTE:
Unit will automatically power off when idle for 5 minutes. All current settings
are automatically saved prior to powering off.
2.2 PRB 0 Key
The PRB 0 key is used to “zero” the TI-25PX in much the same way that a
mechanical micrometer is zeroed. If the gauge is not zeroed correctly, all of the
measurements that the gauge makes may be in error by some fixed value. Refer
to section 5.1 for a further explanation of this important feature.
2.3 VEL Key
The VEL key is used to enter and exit the TI-25PX’s calibration mode. This
mode is used to adjust the sound velocity value that the TI-25PX will use for a
given material type. Enter a known velocity value for specific material type, or
manually continue adjusting the value until the TI-25PX displays the correct thickness
value using a test sample or calibration block with a known thickness. Refer to section
5.2 for an explanation of calibration.