3-10 ESI and ESCi Modes of Operation
5. Use the needle-nose pliers to fit the blanking plug to the corona pin
mounting contact. (See the figure “Corona pin mounting contact” on
page 3-7.)
6. Close the source enclosure door, and secure it with both spring-clips.
7. Close the instrument’s access door.
Removing the ESI probe
Required material: Chemical-resistant, powder-free gloves
To remove the ESI probe
1. Prepare the instrument for working on the source (see “Preparing the
instrument for work performed on the source” on page 5-7).
2. Open the instrument’s access door.
3. Disconnect the diverter valve tubing from the ESI probe.
4. Disconnect the ESI probe’s electrical lead from the high voltage
connection.
5. Ensure that the API gas is turned off.
6. Disconnect the ESI probe’s PTFE tube from the nebulizer gas
connection.
Warning: The ACQUITY UPLC system connections, ESI probe,
and source can be contaminated with biohazardous and/or toxic
materials. Always wear chemical-resistant, powder-free gloves
while performing this procedure.
Warning: To avoid electric shock, ensure that the instrument is
suitably prepared before commencing this procedure.
Warning: The ESI probe and source can be hot. To avoid burn
injuries, take great care while working with the instrument’s
access door open.
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