Prentke Romich Company Look User manual

18735
Version 2.01
Eye Tracking System
User’s Guide
Accent®Devices with Empower™Software
Accent®Devices with NuVoice®Software

Look User’s Guide 2
Copyright and Trademark Information
© 2019-2020 PRC-Saltillo. Non-commercial reprint rights for clinical or personal use granted with inclusion of copyright notice. Commercial use prohibited; may not
be used for resale. Contact PRC-Saltillo for questions regarding permissible uses.
Accent, Empower, Look, NuEye, and NuVoice are trademarks of PRC-Saltillo.
The MINSPEAK®, SEMANTIC COMPACTION®, UNITY®, and UNIDAD® trademarks are under license from Semantic Compaction Systems, Inc. in the United States and
other countries.
PIXON® brand products are trademarks under license from Semantic Compaction Systems, Inc. in the United States and/or other countries.
Microsoft and Windows are registered trademarks of Microsoft Corporation in the United States and/or other countries.
Contact Information
Manufacturer
Authorized Representative in the EU
Importer
Prentke Romich Company
1022 Heyl Rd
Wooster, OH 44691, USA
Tel.: [phone] · [phone]
Fax: [phone]
Email: [e-mail]
Web: www.saltillo.com
Prentke Romich GmbH
Karthäuserstr. 3
D-34117 Kassel, Germany
Tel.: [phone]
Fax: [phone]
Email: [e-mail]
Web : www.prentke-romich.de
Liberator Ltd
“Whitegates”, 25-27 High Street
Swinstead, Lincolnshire NG33 4PA, UK
Tel.: [phone]
Fax: [phone]
Email: [e-mail]
Web: www.liberator.co.uk
Document Version
18735v2.01 · 03/12/2020
For Accent devices with Empower software or NuVoice software

Look User’s Guide 3
Contents
Important Safety Guidelines ............................................................................................................................4
Introducing Your Look Eye Tracking System ....................................................................................................... 5
Attaching the Look Module: Accent 1000 .........................................................................................................6
Attaching the Look Module: Accent 1400-20.....................................................................................................8
Attaching the Look Module: Accent 1400-30...................................................................................................10
Positioning the User and Eye Tracking System ................................................................................................12
Look Eye Tracking System Parameters .................................................................................................................12
Positioning Guidelines ..........................................................................................................................................13
Calibrating and Setting Up Eye Tracking in Empower.......................................................................................14
Starting Eye Tracking in Empower........................................................................................................................14
Using the Positioning Guide .................................................................................................................................14
Calibrating Eye Tracking .......................................................................................................................................15
Configuring Calibration Settings...........................................................................................................................16
Adjusting Eye Tracking Selection Settings ............................................................................................................17
Setting up Dwell Selection.............................................................................................................................17
Setting up Blink Selection ..............................................................................................................................18
Setting up Switch Selection ...........................................................................................................................18
Pausing and Resuming Eye Tracking.....................................................................................................................19
Observing the User’s Performance.......................................................................................................................19
Adjusting Eye Tracking Settings............................................................................................................................20
Adjusting Additional Eye Tracking Settings ..........................................................................................................21
Adding Eye Tracking Shortcuts .............................................................................................................................22
Adding a Positioning Shortcut .......................................................................................................................22
Adding a Tracking Shortcut ...........................................................................................................................23
Adjusting Additional Empower Settings ...............................................................................................................24
Adjusting Feedback Settings..........................................................................................................................24
Adjusting Button Padding..............................................................................................................................24
Adjusting the Action of Empty Buttons.........................................................................................................24
Calibrating and Setting Up Eye Tracking in NuVoice ........................................................................................25
Starting Eye Tracking in NuVoice..........................................................................................................................25
Using the Track Status Box ...................................................................................................................................26
Track Status Box ............................................................................................................................................26
Eye Tracking Positioning Markers .................................................................................................................27
Adjusting Positioning ............................................................................................................................................28
Correct Positioning ...............................................................................................................................................29
Calibrating the Look Eye Tracking System ............................................................................................................30
Calibrating for the First Time.........................................................................................................................30
Adjusting Calibration Settings .......................................................................................................................31
Using Calibration Menu Settings ...................................................................................................................32
Configuring a Selection Method...........................................................................................................................33
Choosing the Selection Type .........................................................................................................................33
Trying Out Your Settings................................................................................................................................34
Pausing Look Eye Tracking....................................................................................................................................35
Changing Pointer Settings ....................................................................................................................................36
Changing Tracking Settings...................................................................................................................................39
Changing Off-Screen Key Settings ........................................................................................................................40
Working with Profiles ...........................................................................................................................................42
Selecting and Loading a Profile .....................................................................................................................42
Managing Eyegaze Profiles............................................................................................................................43
Appendix A: Cleaning the Look Eye Tracking Module ......................................................................................45
Appendix B: Compliance Information................................................................................................................. 46

Look User’s Guide 4
Important Safety Guidelines
Emergencies
The device with the Look module attached is not intended to be an emergency call device or sole communication aid.
Cleaning, Maintaining, and Servicing
Do not attempt to service or maintain the device or Look module when they are in use. Disconnect the charger and turn off the
device before cleaning or disinfecting the device or module.
If the module is damaged, call Service for assistance. Do not attempt to make repairs yourself.
Accessories
Do not use accessories, detachable parts, or materials not described in this manual.
Do not use accessories, detachable parts, or materials in any other way than described in this user's guide.
Small Parts
When you are installing the Look module, loose screws can be a choking hazard.
If you install the Look module on an Accent 1000, loose adapters can be a choking hazard.
Small parts can present a choking or other hazard.
Interference
When operating the device and module in a medical environment, do not use with any product that is not medically approved.
Follow all rules for appropriate cell phone and wireless device use.
Do not use this module close to sources of RF/RFID radiation or you may encounter interference. Move away, if possible, from the source of
the interference.
Mounting and Positioning
A qualified person should analyze positioning to prevent repetitive stress injuries to the user.
A qualified person should install and adjust any mounts used, including switch mounts. Failure to install the mounting system
according to the manufacturer's instructions may result in an injury to the user.
Do not place the device with the module attached where it is difficult to operate or difficult to disconnect from the charger.
Damage
Do not use the module if the lens is cracked or broken.
Environment
Do not use the system in an environment in which explosive or flammable gases could be present.
Water
The device with the module is intended for use in normal communication situations. It is not waterproof, so use extreme caution
when using it around water. As with most electronic devices, you should never use the device when you are actually in the water (for
example, a pool or bath).
Fatigue
While the user is getting used to eye tracking, take frequent breaks to rest the user’s eyes and relax his or her concentration.
Some people may experience a certain amount of fatigue (due to intentional eye focusing and hard concentration) or even a dryness of
the eyes (due to less frequent blinking) when first getting used to eye tracking. If you are experiencing fatigue or dry eyes, start off slowly
and limit the length of your eye tracking sessions to your comfort level. Moisturizing eye drops can be helpful to combat dryness.
Seizures
Some people may have epileptic seizures triggered by light flashes or patterns. This may occur while presented successive pictures
or video material, even if they have never had a seizure before. Observe the individual using the system. Move the person away
from the system immediately and consult a physician if the individual shows the following or similar symptoms: involuntary
movements, disorientation, convulsions, loss of awareness, or altered vision.
Infrared Emissions
Your Look eye tracking system uses infrared (IR) technology. Certain medical devices are susceptible to disturbance by IR emissions.
Do not use the Look eye tracking system when in the vicinity of such susceptible medical devices. If you have questions about the
susceptibility of a medical device, consult the manufacturer of the medical device or your health care provider.
If you have questions about the susceptibility of a medical device to the infrared technology that is part of your eye tracking system,
consult the manufacturer of the medical device or your health care provider.

Look User’s Guide 5
Introducing Your Look Eye Tracking System
Look®is an eye tracking system that provides hands-free, switch-free access to an Accent® device, allowing
the user to select keys by gazing for a specified period of time to generate speech. The Look eye tracking
system is compatible with Accent 1400-20 models, Accent 1400-30 models, and Accent 1000 models that
have serial numbers 10000AC10 and higher or serial numbers between 5000AC10 and 9999AC10.
Before Using Your Look Eye Tracking System
Please be sure to view the Important Safety Guidelines on page 4.
Mounting Your Accent Device and Look Module
Mount your Accent device (with the Look module attached) to a wheelchair mount or table stand. If the
Look module did not come already attached to your device, you must attach it before you can start
using eye tracking.
•For instructions on attaching a Look module to an Accent 1000 device with a serial number
10000AC10 or higher or a serial number between 5000AC10 and 9999AC10, see “Attaching the
Look Module: Accent 1000” on page 6.
•For instructions on attaching a Look module to an Accent 1400 device, see “Attaching the Look
Module: Accent 1400-20” on page 8.
•For instructions on attaching a Look module to an Accent 1400 device, see “Attaching the Look
Module: Accent 1400-30” on page 10.
Additional Considerations
If you are using your Accent for the first time, plug in the battery charger.
When your Accent with the Look module attached is mounted on a wheelchair or a table stand and
the Accent is charged, you are ready to position the user, calibrate eye tracking, and configure a
selection method.

Look User’s Guide 6
Attaching the Look Module: Accent 1000
If you purchased the Look eye tracking system with your Accent 1000, the module is already attached to
the device. Proceed to Starting Eye Tracking on page 14.
If you purchased the module separately:
An extended-capacity battery was included in the package with the Look module. We recommend that you
replace the battery in your device with the extended-capacity battery.
Follow the instructions in this section to attach the module to your device. Follow the instructions that
came with the extended-capacity battery to replace your old battery. You will need a Phillips screwdriver.
The mounts used should be fitted by a qualified person. Failure to install the mounting system
according to the manufacturer's instructions may result in an injury to the user. Be certain that
the user's view is not obstructed by the mounting.
Loose screws and adapters can be choking hazards.
1. Place the Accent device face-down on a table or counter so that the USB port is near the edge of the
table or counter. This will make it easier to slide the Look module into place at the correct angle.
2. Insert the adapter into the USB port designed for the module on the back of the device.
3. Insert the module’s USB connector into the adapter.
Mounting the module on Accent 1000 models with serial numbers 10000AC10 and higher
Mounting the module on Accent 1000 model with a serial number between 5000AC10 and 9999AC10
4. Hold the module firmly in place and align the screws in the bracket with the holes in the device.

Look User’s Guide 7
5. Tighten the screws evenly to make sure the module attaches flat against the device.
Important! Be sure each screw is actually threading into the holes in the device.
6. Now you can place your Accent device on a wheelchair mount or a table stand. Your Look eye
tracking module is ready to use.
In this example, the head of the screw
is flat against the module bracket …
but the screw is not threaded all the way into
the hole in the device. The module sits unevenly
against the device and will not work properly.
If this happens, loosen the screw and make
sure it passes through both the upper and
lower holes before tightening.

Look User’s Guide 8
Attaching the Look Module: Accent 1400-20
If you purchased the Look eye tracking system with your Accent 1400, the module is already attached to
the device. If you purchased the module later, follow these instructions to attach it to the device. You
can attach the module to a device with or without a frame.
Note: You will need a Phillips screwdriver.
The mounts used should be fitted by a qualified person. Failure to install the mounting system
according to the manufacturer's instructions may result in an injury to the user. Be certain that
the user's view is not obstructed by the mounting.
Loose screws can be choking hazards.
1. Place the Accent device face-down on a table or counter so that the USB port is near the edge of the
table or counter. This will make it easier to slide the Look module into place at the correct angle.
2. Mount the Look module on your device by inserting the module’s USB connector into the USB port
designed for the Look module on the back of the device.
3. Hold the module firmly in place and align the screws in the bracket with the holes in the device.

Look User’s Guide 9
4. Tighten the screws evenly to make sure the module attaches flat against the device.
Important! Be sure each screw is actually threading into the holes in the device.
5. Now you can place your Accent device on a wheelchair mount or a table stand. Your Look eye tracking
module is ready to use.
In this example, the head of the screw
is flat against the module bracket …
but the screw is not threaded all the way into
the hole in the device. The module sits unevenly
against the device and will not work properly.
If this happens, loosen the screw and make
sure it passes through both the upper and
lower holes before tightening.

Look User’s Guide 10
Attaching the Look Module: Accent 1400-30
If you purchased the Look eye tracking system with your Accent 1400, the module is already attached to
the device. If you purchased the module later, follow these instructions to attach it to the device. You
can attach the module to a device with or without a frame.
Note: You will need a Phillips screwdriver.
The mounts used should be fitted by a qualified person. Failure to install the mounting system
according to the manufacturer's instructions may result in an injury to the user. Be certain that
the user's view is not obstructed by the mounting.
Loose screws can be choking hazards.
1. Place the Accent device face-down on a table or counter so that the USB port is near the edge of the
table or counter. This will make it easier to slide the Look module into place at the correct angle.
2. Remove the seven screws that hold the bottom cover in place and remove the cover.
3. From the bottom cover, remove the screws that hold two small inserts in place. Remove the inserts.
The small inserts are potential
choking hazard
s when removed
from the cover. Store them in a
safe place.
Detailed view:
Remove the screw and then remove
the insert. Repeat for the other insert.