Hand Held Products QUICK CHECK 890, Руководство пользователя, Страница: 22 / 40

3 - 4 Quick Check® 890 User’s Guide
• If you hear a single beep tone followed by another single beep of the same
tone, it signifies a good read.
• If you hear a single beep and then a beep of a different tone, the unit detected
an error in the scanned symbol.
Calibrating an External Pen/Mouse Wand
1. Using the proper scan technique described in step 4 above, scan the
reflectance page. You will hear a single beep after the first good scan and
the following display appears:
2. Continue to scan the reflectance page for a total of ten good scans. After
each good scan, a single beep sounds and the display indicates the number
of good scans you need to obtain. After the tenth good scan, the following
window displays: