Dräger Infinity M540 - Page 562

Troubleshooting
562 Instructions for use – Infinity Acute Care System – Monitoring Applications VG6.n
Low %0 reduced accuracy Accuracy of the N2O sensor
cannot currently be
guaranteed.
– Ensure clean ambi-
ent air
– Check water trap and
sample line.
– Change the water
trap or sample line if
necessary.
– Wait for automatic ze-
roing.
– Power cycle the gas
analyzer.
– Call DrägerService
®
.
Low %0 sensor failure The N
2O sensor in patient gas
measurement module has
failed due to:
– Sample line occlusion.
– Electrical disturbance.
– Internal failure.
– Check sample line.
– Remove radiating
devices (e.g.,
telephone).
– Use alternative N
2O
measurement
system.
– Call DrägerService.
Low %0 value temporarily
unavail.
N
2O parameter has unknown
accuracy possibly due to:
– Zeroing failure.
– Polluted ambient air
during zeroing.
– Electromagnetic distur-
bances.
– Overheating.
– Ensure clean ambi-
ent air.
– Remove radiating de-
vices (e.g., tele-
phone).
– Check ambient tem-
perature.
– Check water trap and
sample line.
– Change the water
trap or sample line if
necessary.
– Power cycle the gas
analyzer.
– Call DrägerService
®
.
Alarm Priority Alarm Cause Remedy