Waters ACQUITY - Connecting and Disconnecting the Internal Source Exhaust Valve Assembly (KAD)

Note: In the figure, the assembly cover is depicted as transparent to reveal the tubing
connections.
D.5.2 Disconnecting the external source exhaust valve assembly
Notice: To prevent damage to the instrument, do not use the valve assembly to lift the
instrument.
When moving the QDa detector, you must remove the source exhaust valve assembly. Perform
the following procedure to disconnect the assembly.
Required materials
• Chemical-resistant, powder-free gloves
To disconnect the external source exhaust valve assembly:
Requirement: Wear clean, chemical-resistant, powder-free gloves when performing
this procedure.
1. Remove the valve assembly’s holding screw and slide the cover away from the instrument.
2. Disconnect the convoluted liquid waste tubing, API tubing, and exhaust tubing from the
valve assembly.
D.6
Connecting and disconnecting the internal source
exhaust valve assembly (KAD)
Replace the source exhaust valve annually, or when a source pressure test fails and all other
causes of failure have been investigated.
The following procedures apply to instruments fitted with the internal source exhaust valve
assembly (serial number suffix “KAD”). If the model of your QDa supports the external source
exhaust valve assembly (serial number suffix "KAB"), see the procedures in Connecting and
disconnecting the external source exhaust valve assembly (KAB).
Note: See Identifying your instrument version for guidance on identifying the version of your
QDa to determine the appropriate procedures to follow for configuring the valve connections on
your instrument.
D.6.1
Connecting the internal source exhaust valve
Before powering-on the QDa detector, you must connect the source exhaust valve.
June 15, 2017, 715003956 Rev. F
Page 94