Site Preparation

This chapter should be read prior to the installation of the scanner, so that setup will be efficient and the operation of the scanner reliable. It should also be used as a guide when moving the system to a new location, whether it is across the building or across the country. It is much easier to prepare the site in advance and have a smooth installation process, than to attempt to install the equipment and make changes as problems are discovered.

Room Layout

Careful planning should be done to decide where the scanner will be installed, and preparations may need to be done to properly accommodate the new equipment.

Choose a location that will not leave excessive space between the scanner and the next permanent object (wall, partition, piece of furniture, etc.) on which the laser will shine. Preferably, the only person who will walk in the path of the laser is the operator who is setting up objects to be scanned, thus minimizing eye contact of those not familiar with the equipment.

The platform should be placed on a very solid, stable and sturdy surface. A soft, yielding surface may allow movement or vibrations that can result in inaccurate measurements and motion system errors.

For more specific room layout information, please consult the appropriate motion platform guide:

Cables

The cables from the power supply to the PC are 5 meters (15 feet) in length, so you need to choose a location that will allow the cables to be laid in an untraveled area.

One electrical outlet will be needed within 1.5 meters (5 feet) of the digitizer; a filtering type power strip is highly recommended.

Proximity to Host Computer

During a scanning session, the operator may go back and forth several times between the scanner and the host computer that is being used to control it (running the DigiSize software). For this reason, try to minimize the distance between the scanner and host computer for the sake of convenience. It is helpful to orient the computer such that the operator can see the display monitor while standing in front of the scanner.

Lighting

Excessive light, particularly sunlight, can cause spikes and anomalous data. If you must place the scanner in view of any windows or doors, use heavy curtains or blinds to eliminate natural (outside) light during scanning sessions. Do not have incandescent lights in the field of view, from any angle. Also, check the area for bright reflections and other direct light sources. Fluorescent lights are preferred for room lighting, because they emit less of the orange-red light sensed by the scanner.

If you have purchased a color-enabled scanner (3030/RGB, 3030/sRGB or WB4), refer to these minimum light standards: Subject illumination measured with an incident meter must be 1.0 Klux for RGB and 10 Klux for sRGB. Room illumination should be specified at 2.5-3.5 Klux.

Environmental Limits

Normal temperature ranges for an office or computer laboratory environment are suitable for the scanner. The scanner will not operate properly in adverse climates. Allow extra time for the scanner to warm up to proper alignment if the room is heated from cold temperatures. Also be aware of condensation on the optics and electronics if the temperature or humidity is changing rapidly.

Do not allow the scanner to reach freezing temperatures, even when not in use.