Sip And Puff Calibration - Invacare LiNX Service Manual

Invacare® LiNX
1. Add user function for Sip and Puff module. For more
information about adding profiles and functions, refer to
7.1 Profile and function actions, page 58.
2.
Set User Input to IN 5xx.
Same procedure for drive, seating and
connectivity functions.
3. Open Chair Setup –> Modules –> IN 5xx.
4.
Set User Input Configuration to Sip and Puff.
5. Calibrate Sip and Puff module, refer to7.10.1 Sip and
Puff calibration, page 68.
6. Open User Preferences to adjust veer behavior for
switched inputs. For more information refer to 4.2.1
Overview User Preferences, page 42.
68

7.10.1 Sip and Puff calibration

Primary input operations, such as driving, are
disabled when using the calibration tool. This is
for safety reasons to prevent unintended operation
when calibrating.
There are three pressure zones for each pressure direction
(sip and puff):
• Neutral zone,
• soft zone and
• hard zone.
The Sip and Puff module's response to a sip or puff input,
depends on which zone the pressure falls within: hard or
soft. Pressures within the neutral zone are ignored.
Since all users have different capabilities, the Sip and Puff
module can be calibrated to change the size and position of
these zones. The zones need to be set so that a user can
control the wheelchair comfortably and consistently. A Sip
and Puff calibration tool is used to determine the pressure
thresholds that define the zones. These thresholds are:
• Minimum limit for soft puff,
• minimum limit for hard puff,
• minimum limit for soft sip and
• minimum limit for hard sip.
To calibrate the Sip and Puff module, you have to record
pressure measurements from a series of pressure samples
performed by the user and adjust the four pressure
thresholds accordingly.
1.
From Home screen open Chair Setup –> Modules –>
IN 5xx.
2. Tap on Go to Sip And Puff Calibration.
1605129-C