GE Carestation 620, User'S Reference Manual

Page: 137 / 268

Message Priority Cause Action
Low gas sample
flow Low Sample flow is less than 80% of
nominal flow for 20 seconds. Check for blockage in the airway
module sample gas line.
Memory
(EEPROM)
failure Low Software error. Contact an authorized service
representative.
Module fail. No
CO2, AA, O2
data. Medium Airway module hardware failure. Replace module.
Module not
compatible Low The monitoring module detected is not
compatible with system software. Remove the incompatible module. Use
a compatible module.
Move Bag/Vent
switch to Bag Medium Bag/Vent switch was in the Vent
position when the case was changed
from Aux O2+Air to circle mode. Move switch to the Bag position.
MVexp high Medium MVexp is greater than MVexp high
alarm limit (for nine breaths and one
minute has elapsed). Set the alarm limits appropriately.
Check the ventilation settings.
MVexp low Medium MVexp is less than MVexp low alarm
limit (for nine breaths and one minute
has elapsed). Set the alarm limits appropriately.
Check the ventilation settings.
N2O supply
pressure low Medium N2O pipeline pressure is less than 252
kPa (36 psi) and the N2O cylinder
pressure is less than 2633 kPa (381
psi). Ensure the N2O pipeline and cylinder
are properly connected.
Ensure facility gas supply pressure is
within specification and the back up
cylinder is full and open.
N2O flow in Aux
Gas mode Medium N2O flow is lager than 100 ml/min
when system is in Aux gas mode. Adjust N2O flow to less than 100 ml/
min.
Negative airway
pressure High Paw is less than -10 cmH2O. Check for blockages in the patient
circuit.
No battery
backup Medium Battery or charging failure. Between cases turn the system off, then
back on after 15 seconds to reset the
system.
No exp flow
sensor Medium Electrical signals show the flow sensor
is not connected. Connect the flow sensor. Replace the
flow sensor if necessary.
No insp flow
sensor Medium Electrical signals show the flow sensor
is not connected. Connect the flow sensor. Replace the
flow sensor if necessary.
O2 flow low Low The O2 flow is less than 150 ml/min. Adjust the O2 flow.
O2 flush stuck
on? Low Switch detected “on” continuously for
more than 30 seconds. Check flush valve. Ensure flush valve is
not sticking.
O2 monitoring not
connected Medium O2 cell not connected. Install airway gas module or connect the
O2 cell.
O2 supply
pressure low High O2 pipeline pressure is less than 252
kPa (36 psi) and the O2 cylinder
pressure dropped below 2633 kPa
(381 psi) for one second. Ensure the O2 pipeline and cylinder are
properly connected.
Ensure facility gas supply pressure is
within specification and the back up
cylinder is full and open.
PEEP high.
Blockage? High Paw greater than or equal to sustained
limit for 15 seconds. See “Sustained
pressure threshold” section for more
information. Check for blockages in the patient
circuit.
7 Alarms and troubleshooting
2076152-001
7-9