User guide

DuoSpray™ Ion Source User Reference

System User Guide

D5033331 A

AB SCIEX TripleTOF

5600/5600+ Instruments

99 of 116

Remove the Corona Discharge Needle

The corona discharge needle tip may become so corroded that it must be cut off from the corona

discharge needle. If this occurs, replace the corona discharge needle.

1. Remove the ion source and probe from the mass spectrometer.Refer to Remove the

Ion Source on page 96.

2. Rotate the ion source so that the open side is toward you.

3. Press down on the corona discharge needle adjustment knob on the top of the

tower. The corona discharge needle extends.

4. Holding the corona discharge needle tip between the thumb and forefinger of one

hand and the corona discharge needle with the other hand, rotate the corona

discharge needle tip counter-clockwise to loosen and gently remove the tip.

Figure 7-5 Electrode tip extension adjustment

Item Description

1 Probe

2 Electrode

WARNING! Electrical Shock Hazard: Remove the ion source from the mass

spectrometer before starting any maintenance procedures.

WARNING! Piercing Hazard: The tip of the needle is extremely sharp. Take care

to handle it safely.

0.5 - 1 mm