90-degree elbow
Front exhaust connection
Tip:
This figure shows a QDa detector fitted with the external source exhaust valve assembly
(serial number suffix "KAB"). To see the QDa detector fitted with the internal source exhaust
valve (serial number suffix "KAD"), see the figures "Internal source exhaust valve—rear
configuration" and "Internal source exhaust valve—front configuration" in
D.7.3 Connecting the 2.5-L waste container
Perform the following procedure to connect the 2.5-L waste container to QDa models fitted with a
diaphragm pump, and QDa models fitted with the rear drain bulkhead, including the following
models:
• Performance QDa detector (serial number suffix "KAB")
• Standard QDa detector (serial number suffix "KAB")
• Standard QDa detector (serial number suffix "KAD")
Note:
The Performance QDa detector fitted with the internal source exhaust valve (serial number
suffix "KAD") does not connect to the 2.5-L waste container.
Required materials
• Chemical-resistant, powder-free gloves
• Bottle-stopper assembly
• 2.5-L bottle
• Cable ties
To connect to the 2.5-L waste container:
Requirement:
Wear clean, chemical-resistant, powder-free gloves when performing
this procedure.
1.
Connect the bottle-stopper tube assembly’s 4-mm outer-diameter (O.D.) drain tubing to the
4-mm bulkhead fitting on the instrument’s rear panel (see the figure "Waste connections" in
step 2).
Tip:
To ensure that excess tubing remains organized when the instrument is positioned at
the bottom of an LC stack, loop the tubing without kinking it, and secure it using a cable tie.
Alternatively, if the instrument is unlikely to change location, cut the tubing to length.
2.
If you are using a Standard QDa detector, connect the 6-mm O.D. tube from the bottle-
stopper assembly to the diaphragm pump’s 6-mm elbow (as shown in the following figure).
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