Dräger PSS 7000 Series C/W SENTINEL 7000 EMU User Instructions page 28

PSS® 7000 SERIES c/w SENTINEL 7000 EMU
Table 3 - Troubleshooting
Symptom
Face mask air leak
Unsatisfactory communication
High-pressure air leak
Safety relief valve venting
LDR allowing constant air flow into the
fask mask
Whistle not sounding correctly
Whistle sounding continuously
Low battery indication on the user
interface (Fig 4)
Fault code indication on the user
interface (Fig 12)
Sentinel 7000 will not switch on
HUD battery LED flashing green
HUD battery LED flashing yellow
HUD will not log on to the Sentinel
7000
Sentinel 01: Edition 1: July 2008 - Subject to Modification
Fault
O-ring at LDR to facepiece connection
Headstraps not tight
Exhalation valve leaking
Speech diaphragm defective
Speech diaphragm defective
Loose connections
Faulty or missing hose seals
First-stage regulator defective
Bypass button engaged
Internal fault
Whistle dirty or faulty
Damaged sealing on HP capillary
Defective activation mechanism
Low main battery
Sentinel 7000 failure
Low main battery
Low cylinder pressure (below 145psi)
Unknown
Low battery - HUD
Low main battery
HUD not close enough
Low HUD battery
Low cylinder pressure (below 100 psi)
Unknown
Remedy
Renew or lubricate O-ring
Tighten
Maintenance task
Maintenance task
Maintenance task
Maintenance task
Maintenance task
Maintenance task
Turn off the bypass button (3, Fig 13)
Maintenance task
Maintenance task
Maintenance task
Maintenance task
Renew the main battery
Maintenance task
Renew the main battery
Recharge cylinder to maximum working pressure
Maintenance task
Renew the HUD battery
Renew the main battery
Move the HUD to within three feet of the pressure
module
Renew the HUD battery
Recharge cylinder to maximum working pressure
Maintenance task
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