Troubleshooting - Dräger HP NO Series Instructions For Use Manual

Troubleshooting

Fault
Leaky compressed air connection
Manual connection cannot be loosened
Safety valve is releasing air
Dräger tube is not firm in test holder
Tip of Dräger tube is not cleanly scored and
broken off
Large measuring error
Dosing unit leaky
Incorrect display value on pressure reducer
(Aerotest Alpha)
1) We recommend getting Dräger Safety to perform maintenance
Visit: www.thesafetyequipmentstore.com or email besafe@thesafetyequipmentstore.com for sales and service.
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Cause
Sealing ring defective
Connection is subject to pressure
Piston is leaky
Dräger tube container is worn out
Break-off unit is blunt
Dräger tube inserted in wrong Dräger tube
holder
Dräger tube holder is dirty or loose
Seal defective
Secondary pressure displaced
Remedy
Check sealing ring, and replace if necessary
Bleed connection
1)
Repair pressure reducer
Replace Dräger tube holder
Replace break-off unit
Check
Clean Dräger tube holder, and replace if
necessary
Replace sealing ring
Configure secondary pressure correctly