Dräger Aerotest HP Notice D'utilisation page 39

en
Troubleshooting
5 Troubleshooting
5.1 Fault/Cause/Remedy
Fault
Compressed air connection leaking
Manual connection cannot be loosened
Safety valve is releasing air
Tube is not firmly seated in the tube holder
Tip of tube not cleanly scored and broken off
Large measuring error
Metering valve is leaking
Incorrect display value on the pressure regulator
of the low-pressure systems (Aerotest Alpha
and MultiTest med. Int.)
1) Maintenance by Dräger Service is recommended
38
Cause
Sealing ring is defective
Connection is under pressure
Piston is leaking
Tube holder is worn out
Snapper is blunt
Tube inserted in wrong tube holder
Tube holder contaminated or loose
Seal is defective
Outlet pressure adjusted
Remedy
Check the sealing ring, replace if
necessary
Bleed connection
1)
Repair pressure regulator
Replace tube holder
Replace snapper
Check
Clean tube holder, replace if
necessary
Replace sealing ring
Set outlet pressure correctly