ACQUITY Standard QDa/RADIAN ASAP turbo timeout - WKB3794
Article number: 3794
SYMPTOMS
- ACQUITY QDa/RADIAN ASAP crash vented during acquisition.
- ACQUITY QDa/RADIAN ASAP failing to pump back down, only reaches 40% turbo speed.
- Turbo pump power very high (>70W)
- Turbo speed does not reach 100%
- Cannot pump down
ENVIRONMENT
- ACQUITY QDa Mass Detector (Standard)
- RADIAN ASAP Direct Mass Detector (Standard)
CAUSE
Diaphragm pump not performing at optimum efficiency.
FIX or WORKAROUND
- Rebuild the diaphragm pump using the service kit #700009680.
- Contact ESTC refurb program for replacement.
- If new installation consider replacing the diaphragm pump with new #700009640.
Pump down instrument.
Verify that turbo pump power is now within normal range (around 45W)
ADDITIONAL INFORMATION
id3794, QDA, RADIAN