Arrow AutoCAT 2 Series Operating Manual page 157

AP FOS Light Bulb Icon
The AP FOS icon (light-bulb) is used to indicate the Zeroing, connection and readiness
status of the sensor. The FOS ICON color will change as indicated below:
FOS ICON COLOR
Black with Blue Outline
Blue
Green
White
Blue with Red X
Calibrating the AP FOS MAP:
This function allows the user to calibrate the mean pressure (MAP) of the AP FOS signal
to another AP MAP value. This function is useful if the AP FiberOptix
been zeroed or has been zeroed improperly.
The FOS MAP CAL function has been updated to include information on how much
change has been made to the FOS MAP value. This is indicated in the key prompt
message as the ▲ CAL: +/- XXX mmHG value. This value may be positive or negative as
indicated by the sign before the numerical value.
When the FOS MAP value has been calibrated the FOS icon will be WHITE.
To determine if the sensor has been zeroed, you can adjust the FOS MAP until the ▲
CAL: +/- XXX mmHG value is zero. The FOS icon will either become Blue (not zeroed)
or Green (zeroed).
After the Zero status of the FOS sensor has been determined you will need to readjust
the FOS MAP CAL to the previous value. The FOS icon will turn WHITE.
To use this function select AP Fiber Optic signal using the AP SELECT key. The
following options will appear:
AP
SCALING
AUTO
F1 F2
Press the FOS CAL key and the following will appear:
USE < > KEYS TO ADJUST FOS MAP
FOS MAP: XXX mmHg, ▲ CAL: +/- XXX mmHG
AP
SCALING
AUTO
F1 F2
CONNECTED
No
Yes
Yes
Yes
FOS system is not functional
AP
FOS
ALARM
ZERO
ON/OFF
F3 F4
AP
AP FOS FOS
ALARM
ALARM ZERO ZERO
ON/OFF
F3 F4
7 . C a l i b r a t i o n P r o c e d u r e s
7 . 1 : C a l i b r a t i o n o f T r a n s d u c e r s
ZEROED
Not known
No
Yes
Not known
FOS MAP adjusted
sensor has not
™
F5 F6
< FOS > FOS
MAP MAP
F5 F6
AP FOS Icon and MAP Calibration
FOS
MAP
CAL
F7
CANCEL
F7
7-5