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Acroprint TimeQ+ Biometric Fingerprint Reader Sensitivity Adjustments
 

Acroprint TimeQ+ SENSITIVITY ADJUSTMENTS

 

 There are three sensitivity settings, but more on that in a moment: first, some basics on sensitivity in this system.  When we refer to sensitivity, we mean an adjustment in the software that determines how perfect a match between the stored template and the print on the reader must be to be declared “good”.  The reader itself cannot be adjusted for sensitivity.  If individuals are having trouble getting their prints read, try a different finger, and stress to them the importance of placing the same finger in the same place on all three samples.  Consistency is critical.  It may help to keep some greaseless hand lotion near the terminal.

When you click on the Sensitivity option in the TQ100 menu, you will see one of the following lists:

TQ100 Version 1.0:

Sensitivity        the heading
Sensitivity        individual sensitivity                  default=33

User                 fine setting for all users             default=33
Global              coarse setting for all users         default=1

TQ100 Version 2.0:

Sensitivity        the heading
Sensitivity        individual sensitivity                  default=32
Global              coarse setting for all users         default=1

The higher the number, the more perfect the match must be to be declared “good”.
We recommend making small changes to the sensitivity settings.

The User setting is mostly useful if you have made many changes and want to put everyone back at the same starting point (V1.0 only).
You may have individuals who keep getting recognized as someone else or repeatedly get asked to try again.  There are four ways to handle this.

  1. Take another sample for one of the individuals using a different finger.
  2. Tweak the sensitivity of one or both of the individuals involved.  Slightly decrease the setting of the person trying to punch, and/or slightly increase the setting of the person whose name is coming up.
  3. Instead of having the system search through all the prints in memory looking for the best match, tell it to compare the print directly against the one stored for the individual punching in.  When you approach the clock, there are two ways to punch in.  The first is to simply put your finger on the pad.  The device scans your finger and searches through the database looking for the best match.
  4. This is known as a one to many comparison.  Sometimes it cannot decide and says “try again”.  Sometimes it may declare a match to the wrong individual and punch that person in.  The vast majority of the time, it correctly identifies the individual and they are punched in.  The second option is to walk up to the device and enter your ID number.  The system then asks if you want to enter a password.  If you have a password, you say yes and enter it.  If you completely change your mind, you can cancel out.  You can also ignore the question and put your finger on the pad.  In this case, because it knows your ID number, the system will access the template stored for that ID and compare the finger on the pad directly against it.  This is known as a one to one comparison.
  5. Assign a password.  Foolproof, but it does enable buddy punching.