Agilent Technologies InfinityLab LC Series User Manual page 58

3 Using the Module
Installing Valve Heads
Valve Damage
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Using a low pressure valve on the high pressure side can damage the valve.
When using multiple column compartments as part of a method
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development solution, make sure that the high pressure valve head is
connected to the autosampler and the low pressure valve head is connected
to the detector.
For information about the compatibility mode of 800 bar valve heads see
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Information on RFID Tag Technical Note (01200-90134).
For a correct installation of the valve head, the outside pin (red) must completely
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fit into the outside groove on the valve drive's shaft (red). A correct installation is
only possible if the two pins (green and blue) on the valve head fit into their
corresponding grooves on the valve drive's actuator axis. Their match depends
on the diameter of the pin and groove.
The tag reader reads the valve head properties from the valve head RFID tag
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during initialization of the module. Valve properties will not be updated, if the
valve head is replaced while the module is on. Selection of valve port positions
can fail, if the instrument does not know the properties of the installed valve.
To allow correct valve identification, power off the valve drive for at least 10 s.
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For firmware requirements see Information on RFID Tag Technical Note
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(01200-90134) which is included to each valve head.
Sample degradation and contamination of the instrument
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Metal parts in the flow path can interact with the bio-molecules in the sample
leading to sample degradation and contamination.
For bio applications, always use dedicated bio parts, which can be identified
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by the bio-inert symbol or other markers described in this manual.
Do not mix bio, and non-bio modules or parts in a bio system.
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Agilent InfinityLab LC Series Multicolumn Thermostats User Manual 58