Shimadzu PDA-7000 User Manual

5 Maintenance
5-5
5.3 Maintaining the spark stand
After analysis using the optical emission spectrometer, evaporated sample
accumulates inside the spark stand. Evaporated sample sticking to the tip of the
electrode changes the analysis gap distance and in turn fluctuates analytical values.
To prevent this and keep appropriate conditions for correct analysis, perform
maintenance service on the spark stand regularly.
Spark stand
Cross section through the spark stand
Ar gas inlet
Ar gas outlet
Cylinder installation knob
High voltage cable
Lock nut
Adjusting bolt
Cylinder assembly
Stand base
Sample plate
Electrode
Electrode O-ring
Dust cup
Emission
chamber

Shimadzu PDA-7000 Specifications

General

Brand	Shimadzu
Model	PDA-7000
Category	Measuring Instruments
Language	English