1260 Infinity QuatPump VL User Manual 131
Maintenance
9
Exchanging the Multi-Channel Gradient Valve (MCGV)
Exchanging the Multi-Channel Gradient Valve (MCGV)
Tools required p/n Description
8710-0899 Screwdriver, Pozidriv #1
Parts required p/n Description
G1311-67701 Multi channel gradient valve (MCGV)
Preparations • Switch off pump at the main power switch
• Remove the front cover
• Use an optional solvent shutoff valve or lift up solvent filters in solvent reservoirs for avoiding
leakages.
The life time of the multi-channel gradient valve can be increased by regularly flushing the
valve, especially when using buffers. If using buffers, flush all channels of the valve with
water to prevent precipitation of the buffer, otherwise salt crystals could drop into an
unused channel and form plugs that may cause leaks of that channel. Such leaks will
interfere with the general performance of the valve. When using buffers in combination
with organic solvents in the Agilent 1260 Infinity Quaternary Pump it is recommended to
connect the aequous solutions/buffers to one of the bottom ports (A and D) and the
organic solvent to one of the upper gradient valve ports. It is best to have the organic
channel directly above the buffer channel (e.g., A - buffer, B - organic solvent).
To Next Page
Loading...
Need help?
General
