Replacing Optical Sensor Lens - Amano Time Guardian FRT-40 User Manual

Replacing Optical Sensor Lens

To replace the optical sensor lens:
1. If optical sensor lens becomes damaged (scratched) and cannot be
cleaned, replacement may be necessary.
2. Use the replacement [spare] optical sensor lens included with the
terminal. Remove the spare sensor lens from the protective
packaging (see figure), using care not to touch the prism.
3. Disconnect the AC Power Adapter from the bottom of the terminal.
4. Disconnect the communication cable (either Ethernet or serial DB9
connector)
5. Loosen and remove the four (4) back plate retaining screws and
remove the terminal from the wall mounted back plate.
6. Place the terminal on a soft surface face down. Located and remove
the four (4) Phillips Head screws holding the case front cover. There
will be one screw in each corner on the back of the case.
7. After removing the screws, place the terminal right-side up on the
back of the case and VERY CAREFULLY lift the front cover up.
8. The sensor housing must be removed by unscrewing the four (4)
Phillips head screws holding it down to access the optical sensor
lens (see figure).
FPT-40 Fingerprint Terminal Installation & Operation Guide
Prism
3-12
Spare Prism & Packaging
Page 3-9