Shimadzu PDA-7000 - Page 88

5 Maintenance
5-24
3 Loosen the fastening screws on the electrode holder of the control gap in the
upper part of the excitation unit to remove the electrode.
Upper Part of Excitation Unit
Control Gap
The used electrode should be polished with sandpaper (#240) or machined in a
lathe. (It is also possible to use a special electrode sharpener.)
Electrode of Control Gap
Control gap
30
o
Electrode
Fastening screws
Electrode bar
Electrode
holder