GE XMO2, User Manual

Page: 129 / 196

September 2007
7-14 Advanced Programming
GAS VALUE EXP FILTER
Option (cont.)
The Set Exp Threshold option:
The exponential threshold is calculated from the oxygen span of the
calibration data. If the exponentially-calculated oxygen value is
within the threshold value of the normally-calculated oxygen value,
fast response is disabled. To set this parameter, proceed as follows:
You may now do one of the following:
•
Press
[N]
as many times as necessary to select another Gas Value
Exp Filter menu option. Then, press [Y] and proceed to the
appropriate section of this chapter for instructions.
•
Press
[N]
until you reach the Done? option of the Gas Value Exp
Filter menu, then press [Y] to return to the Calibrate System menu.
The Set Window Threshold option:
The window threshold, which is calculated from the oxygen span of
the calibration data, is the threshold for the dynamic dt (delta time)
value. A dynamic dt value allows the fast response algorithm to be
both fast (dt=1) and stable (dt=10), as required. To set this parameter,
proceed as follows:
Gas Value Exp Filter:
Press [N] until this prompt
appears, then press
[Y]
or
[Enter]
.
Set Exp Threshold?
Exp Threshold Value:
To accept the current value, press
[Y] or [Enter] . To change the
current value, use the numeric
keys to enter a new value and
press
[Y]
or
[Enter]
twice.
% [xxx.x]
Gas Value Exp Filter:
You have now completed the
programming of this submenu.
Set Exp Threshold?
Gas Value Exp Filter:
Press [N] until this prompt
appears, then press
[Y]
or
[Enter]
.
Set Window Threshold?
Window Threshold Value:
To accept the current value, press
[Y] or [Enter] . To change the
current value, use the numeric
keys to enter a new value and
press
[Y]
or
[Enter]
twice.
% [x.x]