304 Agilent 1260 Infinity DAD and MWD User Manual
14
Appendix
Installation of Stainless Steel Cladded PEEK Capillaries
First installation of a capillary to a hard connector
1 When tightening a fitting for the first time, start from the finger-tight
position (which is not necessarily a vertical wrench position) and rotate the
wrench by 135 – 180 °. Staying below 135 ° (grey arrow) will be
insufficiently tight, more than 180 ° (red arrow) could damage the
capillary.
Second and subsequent installations of a capillary to a hard connector
1 When tightening the fitting for the second and subsequent times, again start
from the finger-tight position (which is not necessarily a vertical wrench
position) and rotate the wrench by 90 – 135 °. Staying below 90 ° (grey
arrow) could be insufficiently tight, more than 135 ° (red arrow) could
damage the capillary.
Second Step: Installation to Soft Connectors
Use this procedure for soft connectors, which are typically made from PEEK.
These are the following connections:
• to and from all bio-inert valves (injection valve in the autosampler and
valves in the thermostatted column compartment and 1290 Infinity Valve
Drive),
• bio-inert ZDV unions (detector flow cells, multi-draw upgrade kit, capillary
to capillary connections, for example, for heat exchangers),
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