The Gradient Smart Start feature coordinates pre-injection operations and reduces
the effect of the solvent manager’s dwell volume on cycle time. The gradient starts
before or during the sample manager’s pre-injection functions, resulting in significant
time savings.
1.1.4.3 Wash Plungers
Precipitated material that remains on the solvent manager’s pump plungers can
damage the high-pressure seals. The Wash Plungers function washes the seals and
plungers with seal wash solvent, to remove any precipitate. You can use the Wash
Plungers function as needed, or run the function as part of the No-Flow Shutdown
feature.
Tip:
The Wash Plungers function is not available when the module is operating.
1.1.4.4 No-Flow Shutdown
The No-Flow Shutdown feature runs the Wash Plungers function after the solvent
manager remains idle for a specified time interval. This feature prevents deposition
of precipitated material on the pump plungers and plunger seals while the system is
idle.
1.1.4.5 Automatic Prime
When you enable the solvent manager's Automatic Prime function, the system
primes the lines of the optional solvent selection valve when a new line is selected.
You can specify the flow rate and duration of the prime for the new solvent line.
Example:
If a first injection uses line D1 and a second injection uses line D2, the
solvent manager primes line D2 between the first and second injections.
1.1.4.6 Flow Ramping
Using the Flow Ramping function, you specify the rate at which the solvent manager
increases or decreases flow.
1.1.4.7 Auto Blend Plus
Auto•Blend Plus technology uses pure solvents and concentrated stocks to blend
mobile phase compositions at a specific pH. At the same time, it controls the
concentration of salt or organic solvent, to optimize separations. Use the Auto•Blend
Plus feature to create and store buffer systems in a solvent catalog that all users of
an ACQUITY quaternary solvent manager can share. To prepare and adjust
chromatographic mobile phases, you add acid, base, salt or organic solvent, and
water to the solvent reservoirs. By doing so you can, for example, optimize protein
separations, which are especially sensitive to a buffer's pH and salt concentration.
June 12, 2015, 715004747 Rev. A
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