Waters ACQUITY QDa - Connecting the Nitrogen Exhaust Line

June 28, 2016, 715003956 Rev. C
Page 97
Notes:
• Performance QDa Detectors use a separate rotary backing pump, not an attached
diaphragm pump.
• The 4-mm bulkhead fitting and O.D. drain-tubing is only used with “KAB” models, and
earlier.
3. Secure the bottle-stopper onto the 2.5-L bottle (see the figure “2.5-L waste container
tubing”, below).
Note: The Performance QDa uses a rotary backing pump, which does not require the 6-mm
O.D. drain tube. To minimize unused tubing, cut the 3-m length of 6-mm O.D. tubing close
to the waste container.
4. Position the bottle in a readily accessible location below the instrument.
Figure D–14: 2.5-L waste container tubing
D.8 Connecting the nitrogen exhaust line
Required materials
• Chemical-resistant, powder-free gloves
• Sharp knife
• 12-mm PTFE tubing (included in the Waters Rough Pump Connect Kit)
• 12-mm right-angle elbow connectors (included in the Waters Start-Up Kit)
Warning: To prevent damage to the instrument, ensure that these criteria are met:
• The drain tubing is not submerged in solvent within the waste container.
• The waste container is not used to collect solvent waste from other sources.
2.5-L bottle
Bottle-stopper
4-mm O.D. drain tubing
6-mm O.D. tubing
(3-m hose)