Dräger Nitrox 200 Instrucciones De Uso página 33

5 Troubleshooting
Error Cause
No display on the Battery empty
pressure gauge
Pressure vessel
valves or shut-off
valves closed
Pressure vessel
reservoir empty
Pressure gauge faulty Have the pressure
Pressure gauge No zero offset
inaccurate adjustment
O measurement Pressure of the
2
pressure vessel too
faulty
low
Flow rate in
measurement hose
too low
Measurement hose
defective or
incorrectly mounted
Measuring device
faulty
Nitrox 200
Error
O
2
Remedy
faulty
Replace battery.
Open pressure vessel
valves and shut-off
valves (see "Use" on
page 29).
Replenish pressure
Non-return valves
vessel reservoir.
leaking
gauge replaced by
Desired oxygen
qualified personnel.
content is not
Conduct a zero offset
achieved.
adjustment.
Build pressure vessel
pressure.
Replace hose, have
the dosage system
replaced by qualified
personnel.
Replace
measurement hose or
connect correctly.
Consult the technical
manual.
Replace the
measuring device.
Cause
measurement Fresh air calibration
not carried out or not
immediately prior to
measuring
Gas analysis shut-off
valve closed
Return valves faulty
Incorrect calculation
Pressure vessel was
not depressurized.
Troubleshooting
Remedy
Carry out fresh air
calibration (see "Carry
out fresh air
calibration as follows:"
on page 30)
Slowly open the gas
analysis shut-off
valve.
Have the non-return
valves replaced by
qualified personnel.
Check calculation and
contact Dräger if
necessary.
Calculate the current
pressure ratio based
on the measured
oxygen concentration
and generate the
desired concentration
through a specified
release and refilling of
oxygen or breathing
air. Or fully
depressurize the
container and refill
them in accordance
with the instructions
for use.
33