Specifications
Page 4-8  FPT-40 Installation & Operation Guide 
Maintenance 
Note:  Do not attempt to service the fingerprint reader unless you are a 
trained service technician. 
Cleaning 
Occasionally, the surface of the optical sensor, the keypad and display 
window may require cleaning. Since working environments differ, it is not 
possible to define when cleaning should be performed, but the following 
is a suggested guide. 
Item  Cleaning Frequency 
Keypad and display window 
Clean when visibly dirty and hard to read. 
See cleaning procedure. 
Optical Sensor 
Do not over clean. The sensor is designed 
to work under greasy or dirty conditions. 
Clean if the sensor performance has 
degraded to where people are reporting 
recognition problems. See cleaning 
procedure. 
Cleaning the Keypad and Display 
To clean the keypad and display use a soft cloth to wipe. 
Cleaning the Optical Sensor 
To clean the optical sensor: 
1.  If dusty or gritty, first blow on the sensor surface to clean off loose 
particles. 
2.  Use adhesive tape to clean the surface. 
3.  Use a non-abrasive soft dry cloth to wipe the sensor surface. Be 
careful not to scratch the sensor surface with loose particles (see 
Step 1). 
CAUTION:  Do not use any cleaning solutions, as this could damage the 
optical sensor. Also, cleaning solvents that contain alcohol or 
other strong substances may discolor or crack the fingerprint 
reader cabinet. 










