Waters SYNAPT G2, Operator'S, Overview And Maintenance Manual

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4-4 Configuring the NanoLockSpray source
NanoFlow gas supply
The sample sprayer nebulizer gas supply pressure is electronically controlled
from 0 to 2 bar. The optimum pressure is sprayer-dependent, but usually lies
between 0.3 and 1.0 bar.
Purge gas
Purge gas typically flows at 100 L/h. It provides a positive pressure in the
source enclosure that reduces the chemical background interference caused by
contaminants in the laboratory air. You can adjust this flow via the Tune
window’s Source tab, see the mass spectrometer’s online Help for further
details.
Sprayer platform adjuster assembly
The sprayer platform adjuster assembly allows precise X-, Y-, and
Z-positioning of the sprayer tip. You can also withdraw the sprayer from the
source to allow access to the sprayer tip.
Using the two thumbscrews on the base of the adjuster assembly, you can
move the platform in and out of the source (see “Deploying the sprayer
platform adjuster assembly” on page 4-5) .
Selecting and Configuring the NanoLockSpray source
The Universal NanoFlow sprayer is installed as standard equipment on the
NanoLockSpray source. For installation and maintenance details, see the
Waters Universal NanoFlow Sprayer Installation and Maintenance Guide
(part number 71500110107).
To select the NanoLockSpray source, from the Tune window, click Source >
Nanoflow.
The following table summarizes how you configure the NanoLockSpray source
for the various ionization modes.
Tip:
A corona pin is not used with the NanoLockSpray source.