Calibrating The Sip & Puff Pressures - Invacare MK5 EX Service Manual

NOTE: The input type selection must be made for each drive program individually. This feature
provides the ability to have two driver input controls for greater flexibility in meeting the needs of
individual users. However, for single driver input chairs, failing to make a consistent selection in
all drive programs will result in the wheelchair appearing to be inoperable in one or more drives.
Calibrating the Sip & Puff Pressures
Calibration of the transducer pressure set points is performed under the CALIBRATIONS
menu.
1. When the main menu is displayed, move the selection arrow down to
CALIBRATIONS.
2. Press the SELECT key.
NOTE: The screen changes to the Calibration menu screen with each adjustable function and its
current value. Sip & Puff calibrations are near the bottom of the menu.
3. Move the selection arrow down to point at the function that needs to be adjusted.
HARD PUFF
SOFT PUFF CAL.
SOFT SIP CAL.
HARD SIP CAL.
4. Press the SELECT key.
NOTE: The display screen changes to the adjustment screen. The top line shows the function. The
second line shows the value. The third line shows the relative position of the function's set point
(indicated by a H or S symbol) with respect to the LESS and MORE as well as the position of a
related function (indicated by a H or S). At the bottom is a bar graph which shows the current value
of pressure or vacuum at the pressure transducer.
5. Press the or
The screen shown below is an example of the Hard Puff adjustment screen. The top line
is the function. The second line gives the value. The third line via the H symbol shows the
relative position of the hard puff set point between the LESS and MORE. The "S" shows
the relative set point for the Soft Puff. The bottom line shows the pressure being applied
to the transducer. In this case it is above the Soft Puff set point and well below the Hard
Puff set point.
HARD PUFF
LESS 1.40
S H
The next screen shows the Soft Puff adjustment screen. The "S" symbol shows the set point
for the Soft Puff and the "H" shows the set point for the Hard Puff. The bottom line shows
that no pressure is being applied to the transducer.
SOFT PUFF
LESS 0.50
S H
Part No 1114808
1.40
0.50
0.70
2.00
key to adjust the value.
MORE
MORE
51 ™ ™
MK EX
5
SECTION 10—OPTIONS
™ ™
and MK TT-EX Electronics
5