Message Priority Cause Action
Plug in power
cable. On battery.
Low The mains supply is not connected or
has failed and the system is using
battery power.
Ventilate manually to save power. Make
sure the power cable is plugged in and
system breaker is on.
Power switched
to Battery
Medium The output power from Power
Management Board reports over or
under voltage condition. The power
supply switched from AC mains to
backup power.
Disconnect and reconnect the AC mains
power.
Ppeak high High Paw or P-ACGO is greater than Pmax
alarm limit.
Check for blockages in the patient
circuit.
Ppeak low. Leak? Medium Peak airway pressure is less than low
Pmin + 4 cmH2O for 20 consecutive
seconds if the set respiratory rate is
four or higher and 35 seconds if the set
respiratory rate is less than four
breaths/min.
Checks for leaks in the patient circuit.
Pressure limit
reached
Medium In PCV-VG or SIMV PCV-VG
inspiratory pressure limit is reached.
Reset the pressure limit setting to an
appropriate setting.
Replace D-Fend Medium Water trap is full or sample line may
contain droplets. Water trap is partially
occluded.
Replace D-Fend water trap and/or
sample line.
Replace exp flow
sensor
Low EEPROM calibration data read failure. Replace the expiratory flow sensor.
Replace insp flow
sensor
Low EEPROM calibration data read failure. Replace the inspiratory flow sensor.
Replace O2
sensor
Low Measure O2 is less than 5%. Calibrate the O2 cell. Replace the O2
cell if necessary.
Reverse exp flow.
Check valves
OK?
Medium Flow toward the patient seen in the
expiratory flow sensor during
inspiration for six breaths in a row.
Calibrate the flow sensors.
Check valves.
Reverse insp
flow. Check
valves OK?
Medium Flow away from the patient seen in the
inspiratory flow sensor during
expiration for six breaths in a row.
Calibrate the flow sensors.
Check valves.
RR high Medium RR is greater than high alarm limit. Set the alarm limits appropriately or
adjust the RR setting.
RR low Medium RR is less than low alarm limit. Set the alarm limits appropriately or
adjust the RR setting.
Sample line
blocked
Medium Water trap is full or sample line may
contain droplets. Water trap is partially
occluded.
Replace airway module D-fend and/or
sample line.
Scavenging flow
is too high.
Low Scavenging flow is too high. Adjust the flow of hospital disposal
system or adjust the scavenging flow on
the anesthesia machine (if applicable).
Contact an authorized service
representative if the problem continues.
Scavenging flow
is too low.
Low Scavenging flow is too low. Adjust the flow of hospital disposal
system or adjust the scavenging flow on
the anesthesia machine (if applicable).
Check the facility vacumm source and
the connections (if applicable). Contact
an authorized service representative if
the problem continues.
Carestation
™
620/650/650c (A1)
7-10 2076152-001
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