HowTo - Clean the vitreous body of 3D Terminal

HowTo - Clean the vitreous body of 3D Terminal

This article describes the procedure how to clean the vitreous body of a 3D Terminal. Dieser Artikel ist auch auf Deutsch verfügbar.

Step 1: Open the device

Open the device as described in ‘Mounting and Installation Guidelines’ document, or follow the video instructions in the article: Handling of 3D Terminal
Remove electric power from device.
It is recommended to put the device on a table for easier handling.

Step 2: Prepare 3D Terminal

Open the Terminal front by turning it to the left.

Remove LAN cable for better access.

The yellow circles in the right picture point to the 2 screws holding the sensor cage. Use Torx size 8 screwdriver to open these. 


  

 

 

Step 3: Open Sensor Cage

Fold the 3D sensor block carefully down into a horizontal position.

Fold out sensor cage to remove the transparent vitreous body.














Step 4: Clean the vitreous body

The vitreous body (VB) is a very delicate item, any scratch on it will prevent the sensor from working properly! The light needs to travel without disturbance, meaning both inside and outside of the VB need to be crystal clear.

Therefore proceed with care:

  1. Remove any dirt and dust by rinsing the VB with water and mild soap only (no aggressive detergents). If required use a spray to dissolve any grease or fat that might be attached. Rinse several times until you see not particles inside.
  2. Use a soft towel (microfiber works best, like to clean glasses), make it wet and gently clean the inside of the VB. Do not use your fingers nor abrasive tools, they would leave scratches.
  3. Shake off any water drops, use a soft handkerchief to dry if needed.
Make sure the vitreous body is clean and dry.



Step 5: Re-assemble the unit

Reinsert the vitreous body carefully, make sure that none of the 3 camera protectors is kinked (see yellow circles in picture).

Fold the 3D sensor unit up and fix it with the 2 screws.


Reconnect LAN, close the 3D Terminal and supply power.



 

NOTE:

Sensor calibration is only required in case the finger cannot be captured correctly.

To start sensor calibration, use admin access and select ‘Sensor calibration’ in Maintenance page.

During calibration the sensor hole must be closed to prevent disturbances from light (using the palm of your hand to close the sensor hole just works fine).


You can save these instructions also as a TechNote in pdf format:

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