11. SAFETY PRECAUTIONS
Do not install the device in a place subject to direct sun light without protective cover.
Do not install the device and cabling close to a source of strong electro-magnetic fields like radio-transmitting antenna.
Do not place the device near or above heating equipments.
If cleaning, do not spray or splash water or other cleaning liquids but wipe it out with smooth cloth or towel.
Do not let children touch the device without supervision.
Note that if the sensor is cleaned by detergent, benzene or thinner, the surface will be damaged and the fingerprint can't be
entered.
12. TROUBLESHOOTING
The Red Led on the Biometric Reader is blinking all the time
There were 15 unsuccessful attempts of authentication
(Finger or PIN). The Red LED will turn off after the first
accepted finger or PIN.
The keypad of the Biometric Reader is not working
The operation Mode of the Biometric Reader is set as
“Finger”. Please select “Keycode OR Finger” mode
Enrollment from desktop reader can be done, but the
Fingerprints are not sent to all Biometric Readers
in the network
·Check the Ser.No of the Readers.
·Check if proper termination is done as described before
Check if the Communication wires (A & B) are properly
connected to the reader
The Biometric Reader is not powered ON.
The tricolour LED is OFF.
Check the power Supply (red & black wire)
Fingerprint (or PIN Code) is recognized (the tricolor LED is
green), but the controller reports other ID number and the
access is denied
·If the user is not deleted from the reader and the same
user is enrolled again with new ID, the reader will
recognize the finger with the first ID. To resolve this,
delete all users from the reader and upload all users to the
reader
·Check the Wiegand Bus (yellow & white wire)
·Check if the ground of the controller and the Biometric
Reader is the same
Check if the length between Biometric Reader and the
controller is less than 50 m
Electro static discharge influences the Fingerprint
Scan.
Connect the housing of the Biometric Reader to the
earth wire
PIN Codes are working correctly, finger scan does not work.
The triocolour LED is OFF.
·Fingerprint Sensor malfunction
·Check the Sensor position and its physical condition
Reset the system. Contact your installer
Reader reading performance is decreased
·
Check if fingerprint reading area is dirty. Do not clean the
device with any form of liquid. Use soft and dry cloth
only
Reading area is damaged. If the damage is minor, try to
calibrate the sensor
Fingerprint is not recognized normally
·Retry after drying the wetness of your finger
·When your finger is too dry, touch your forehead and try
again
When you have a cut on your registered finger, register
another fingerprint
www.visual-plus.com
23
