Quha Sento Wheelchair Accessories and Mobility Products User Manual
- June 6, 2024
- Quha
Table of Contents
Quha Sento Wheelchair Accessories and Mobility Products
Quha Sento Contactless Puff Switch
Quha Sento is a contactless puff switch that is used to perform a short mouse
click (clicking) or a long mouse click (dragging) together with the Quha Zono
gyroscopic mouse
Installation
Quha Sento with Adjustable Headband
Quha Sento with Adjustable Headband is delivered in two parts: the headband
and the cradle. The cradle has the puff sensor arm attached to
it.
- Push the headband into the cradle connector until it is fully inserted.
- Insert your Quha Zono into the cradle by pushing it as shown in the diagram.
- Insert the Sento connector into the Quha Zono charging port. Quha Sento is now ready to be used.
Quha Sento with Head Mount Kit
The puff sensor arm comes attached to a clip that you can attach to the
included neckband or to your own eyeglasses.
1. Attach the clip to the neckband.
2. Insert your Quha Zono into the clip.
3. Insert the Sento connector into the Quha Zono charging port. Quha Sento is
now ready to be used.
Quha Sento with Eyewear Kit
The puff sensor arm comes attached to a clip that you can attach to the
included glasses frame or to your own eyeglasses.
1. Attach the clip to the arm of the glasses frame.
2. Insert your Quha Zono into the clip.
3. Insert the Sento connector into the Quha Zono charging port. Quha Sento is
now ready to be used.
Using Quha Sento
Quha Sento detects the air flow (puff) coming from the user’s mouth. The puff
sensor is located at the end of the sensor arm. The more air flow there is to
the sensor, the more accurately the switch can be controlled. Therefore, it is
necessary to place the sensor to a position that the air flow can reach.
The flexible sensor arm should be adjusted so that the sensor is lo-cated in
front of the user’s mouth at a comfortable distance. A typi-cal distance is
1-5 cm (0.4-2 inch). The user is suggested to try different positions because
the air flow strength varies greatly. With some experimenting, a good posi-
tion is found in a few minutes.
Testing the switch is simple. Puff into the sensor and a click is performed.
Puff and keep puffing into the sensor and a long click (dragging) is performed
as long as the puff continues.
Compatibility
Quha Sento is compatible with the Quha Zono gyroscopic mouse and the Quha Zono
2 enhanced gyroscopic mouse.
Troubleshooting
A click is not happening every time when puff is made
Make sure that the sensor arm is positioned close enough to the mouth and that
the air flow reaches the sensor.
Random clicks
Talking creates an air flow similar to puffing into the sensor and the sensor
picks this up. A good way to prevent random clicks created by talking is
placing the puff sensor in front of the chin slightly lower than the lower
lip. Another way is to increase the distance between mouth and the sensor. If
the puff sensor rubs the user’s clothing or skin when Sento is put on, this
may be picked up by the sensor. The easiest way to avoid random clicks in this
case is to turn on Zono only after the Sento has been placed on the user’s
head.
Dragging is abrupt
The double click assistant in Quha Zono might cause this issue in some SW
versions. Please switch the Double click assistant off in the Quha Zono
Settings application.
Keeping Quha Sento Clean
As a contactless puff switch, Quha Sento is easy to keep clean. In the case of
dust or saliva getting into the puff sensor, you can use a food safe cleaning
spray that is suitable for electronics to clean the sensor piece.
Product Disposal
When the device has reached its end of life it should be recycled as electric
and electronic waste.
European Compliance
The manufacturer of this product confirms that this product complies with the
European Union regulations for safety, health, environmental and consumer
protection.
FCC Compliance
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Limited Warranty
Warranty on the product is 2 years from the date of purchase.
© 2020 Quha oy. Quha oy is not responsible for possible errors in this user
manual. Quha oy reserves the right to revise the content of this user manual.
Copyright 2020 Quha oy.
Quha, the Q-mark, Quha Zono and Quha Sento are trademarks or registered
trademarks of Quha oy. www.quha.com