June 28, 2016, 715003956 Rev. C
Page 88
D.5.2
Disconnecting the external, source exhaust valve assembly
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:
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 the internal, source exhaust valve (KAD)
The following procedures apply to instruments fitted with the internal, source exhaust valve (serial
number suffix "KAD").
for guidance on identifying your QDa model and
for details about connecting
and disconnecting the external, source exhaust valve assembly (serial number suffix “KAB”).
Replace the source exhaust valve annually, or when a source pressure test fails and all other
causes of failure have been investigated.
D.6.1
Connecting the internal, source exhaust valve
Before powering-on the QDa Detector, you must connect the source exhaust valve.
Required material:
•
Chemical-resistant, powder-free gloves
To connect the source exhaust valve assembly:
1.
Ensure that the 90-degree elbow connector on the source exhaust valve is rotated to point
toward the rear of the instrument, to connect the tubing in a rear configuration, as shown in
the figure below.
Notice:
To prevent damage to the instrument, do not use the valve assembly to lift the
instrument.
Requirement:
Wear clean, chemical-resistant, powder-free gloves when disconnecting the
source exhaust valve assembly.
Requirement:
Wear clean, chemical-resistant, powder-free gloves when connecting the
source exhaust valve assembly.
Содержание ACQUITY QDa
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