Hitachi OE700 Series, Руководство по эксплуатации

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Hitachi High-Tech Analytical Science
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9 Maintenance
9.4 Maintenance of the electrode
9.4.1 Cleaning the electrode
The electrode must be cleaned with the electrode brush after every measurement
because residue on the electrode could affect the measurements. This is evident from
fluctuating measuring results. When changing the sample there can also be falsified
values due to contamination. In the worst-case scenario excessive residue on the
electrode can lead to short circuits.
Use the electrode brush (brass handle) to clean the electrode as follows:
1. Switch off the excitation source at the rotary knob on the front of the instrument.
2. Brush the tungsten electrode through the spark stand opening (1, fig. 9-3) using the
electrode brush from the accessory case.
3. Switch the excitation source back on.
Fig. 9-3 Spark stand
1