Hitachi OE700 Series, Operating Manual

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9 Maintenance
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44 Hitachi High-Tech Analytical Science
9.4.2 Replacing and adjusting the electrode
Information
There are a separate tungsten electrode, brush, ceramic insert and spark stand plate for
every matrix.
Replace the electrode whenever you change the matrix.
1. Switch the instrument off (chapter 9.1, page 39).
2. Screw out the spacer (1, fig. 9-4) on the right.
3. Loosen the inner grub screw (2) on the electrode clamp using a 2 mm Allen key (3).
•
The electrode (4) is pushed out of the spark stand toward the top by a spring.
Fig. 9-4 Replacing the electrode
4. Completely remove the electrode and replace it with a new one.
5. Insert the new electrode from above.
1
3
4
2