How To Perform A Finger Vein Authentication - Hitachi PC-KCM50 User Manual

3.2 How to perform a finger vein authentication

Place your finger on the base side finger rest.
Slide your finger up to the fingertip finger rest.
Fingertip side finger rest
Base side finger rest
Important

Improper positioning of the finger may lead to an authentication failure. See the
Enrolment and Authentication Guide for details of the proper finger placement.

Do not move your finger until the capture process is completed (You will hear a
double beep when the capture process is completed).

Finger vein authentication and enrolment may fail in the following cases:

Do not insert any non-finger objects into the Biometric Reader.

Do not disconnect the USB cable or the Biometric Reader from the PC.

narrow fingers - finger width under 10 mm/0.4 inch

wide fingers - finger width over 25 mm/1 inch

short fingers - finger cannot reach the back finger rest
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Slide finger up to touch
the fingertip rest