Stephan EVETR, Instructions For Use Manual, Page: 203 / 254

®
10 Troubleshooting

Fritz Stephan GmbH GA-070T-0518V2.7-HAO-EN 203
Leakage
(Alarm delay: 3 s)
HP
PA  If the inspiratory
tidal volume is 80%
more than the
expiratory tidal
volume after three
breaths  Check the patient's
condition
 Check the tube system
 Check the ETT
Fan failure MP
TA  Fan malfunction  Check the fan, replace if
necessary
Low O
2
pressure MP
TA  Oxygen delivery
pressure from the
gas cylinder or
central gas supply
too low (< 2.7 bar)  Check the oxygen
delivery pressure and
replace the O
2
cylinder if
necessary
 Check the oxygen
pressure in CGS
O
2
high
(Alarm delay: 30s)
MP
PA  Calculated O
2
value
is above the
automatic alarm
limit value
 Compare the set O
2
value
with the calculated value
 In case of larger
deviations, contact F
RITZ
S
TEPHAN
G
MB
H
customer service
O
2
low
(Alarm delay: 30s)
MP
PA

Calculated O
2
value
is below the
automatic alarm
limit value

Compare the set O
2
value
with the calculated value
 In case of larger
deviations, contact F
RITZ
S
TEPHAN
G
MB
H
customer service
Parameter error
MP
TA  Internal
communication
error  Contact
F
RITZ
S
TEPHAN
G
MB
H
customer service