Troubleshooting
91518 Multigas Analyzer Service Manual
5-2
Error Conditions and Status Messages
Clinical Situation
Possible Cause
Solution
Analyzer does not
sign ON
■
Defective hardware.
■
Open the multigas analyzer and
connect it to the Spacelabs
Healthcare monitor with an
extender cable. If no diagnostic
LEDs on the interface board are
illuminated:
•
Check for power to the
multigas analyzer
•
Check for +5 V at J1, pin 2 on
the interface board.
•
Check for +12 V at J1, pin 11.
•
For SDLC operation,
verify -12 V DC is present.
■
Replace the Interface PCBA
if the above conditions are
not met.
■
Flash memory programming
error, or defective software
on the interface board.
■
Contact a Spacelabs Healthcare
Field Service Engineer.
OCCLUSION -
Check system
-or-
OCCLUSION -
Check system
■
The sampling line is blocked.
■
Check the sampling line for
blockage or crimps, and replace
as necessary.
■
If the occlusion persists for a
period greater than
40 seconds, the pump will be
turned off, and the second
message will be displayed.
Leak Detected -
Check system
-or-
Leak Detected -
Check system
■
A leak is detected in the
sampling line.
■
If the condition persists for a
period greater than
40 seconds then the pump
will be turned off and the
second message will be
displayed.
■
Check the sampling line for
blockage or crimps, and replace
as necessary.
