Waters ACQUITY - Page 98

Warning: To avoid personal contamination with biologically hazardous, toxic, and corrosive
materials, wear chemical-resistant, powder-free gloves when performing this procedure.
To connect the exhaust-trap bottle:
1. Place the exhaust-trap bottle in the protective bottle stand, and then position the assembly
in a readily accessible location below the ACQUITY QDa.
2. Cut the 12-mm PTFE tubing into three lengths (see the figure "External source exhaust
valve assembly" in Connecting the external source exhaust valve assembly (KAB)).
Important:
• Cut one piece of tubing so that it is approximately the length of the instrument.
• Cut the second piece of tubing to extend from the bottom of the instrument to the
exhaust trap bottle.
• Cut the third piece of tubing to extend from the exhaust-trap bottle to the laboratory’s
exhaust system.
3. Connect the first length of 12-mm PTFE tubing to the source exhaust valve assembly (see
Connecting and disconnecting the external source exhaust valve assembly (KAB)), and
then thread the tube through the hose brackets running alongside the instrument to ensure
a downward gradient.
Tip: The downward gradient ensures that solvent flows freely into the trap bottle.
4. Connect the 90-degree elbow to the free end of the PTFE tubing that runs alongside the
instrument.
5. Connect the second length of PTFE tubing to the other end of the 90-degree elbow.
Notice: To prevent solvent leaks and resultant damage to the instrument,
ensure that the entire PTFE waste line, from the instrument to the exhaust-trap
bottle, follows a continuous, downward gradient, without loops or areas of
compression.
6. Connect the free end of the second length of PTFE tubing to the inlet of the exhaust-trap
bottle.
7. Use the third length of PTFE tubing to connect the exhaust-trap bottle’s outlet to the
laboratory exhaust system (see the figure "External source exhaust valve assembly" in
Connecting the external source exhaust valve assembly (KAB) for a complete exhaust
configuration).
June 15, 2017, 715003956 Rev. F
Page 98