Agilent Technologies 1290 Infinity User Manual page 87

Valve Damage
C A U T I O N
Using a low pressure valve on the high pressure side can damage the valve.
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For details, please refer to the Agilent 1200 Infinity Series Method Development System -
N O T E
System Manual (p/n G4230-90002).
Column Damage or Bias Measurement Results
C A U T I O N
Switching the valve to a wrong position can damage the column or bias measurement
results.
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The valve actuator contains sensitive optical parts, which need to be protected from
C A U T I O N
dust and other pollutions. Pollution of these parts can impair the accurate selection of
valve ports and therefore bias measurement results.
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The tag reader reads the valve head properties from the valve head RFID tag during
N O T E
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 have the valve correctly recognized by the Agilent Infinity Valve Drive you must have the
N O T E
valve drive powered off for at least 10 seconds.
Agilent 1290 Infinity Valve Drive and Valve Heads
When using multiple column compartments as part of a method 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.
Fit the lobe to the groove to make sure the valve is switched to the correct position.
Always install a valve head for operation and storage. For protecting the actuator, a
dummy valve head (part of Transportation Lock Kit (p/n G1316-67001)) can be used
instead of a functional valve. Do not touch parts inside the actuator.
Maintenance
Replacing Valve Heads
7
87