Nitgen NAC-2500LR, Руководство пользователя

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2.3
Fingerprint Use
To prevent authentication errors from occurring during the
registration and authentication of fingerprint, please follow the
methods below.
① To maximize the contact area and press the surface evenly.
On a scale of 0 to 100% (0%: minimum power 100%:
maximum power), please press the surface with
approximately 50%~70% power.
② Please place the core of fingerprint shape in the center. In
general, the core of fingerprint is located in the same line
with half moon in user’ s fingernail and therefore, place the
half moon in the center of fingerprint sensor.