Maintenance, Service, and Troubleshooting 6-19
Clean the Dacron screen by following these instructions:
1. Remove the collector rod following the steps in Cleaning the Long
DMA Electrodes.
2. Hold the center collector rod at the top and bottom and unscrew the
rod from the top portion. Separate the rod from the top.
3. Loosen the set screw and the knurled retaining ring then remove the
black top of the upper assembly.
4. Remove the sheath assembly.
5. Carefully pull the upper insulator from the sheath core.
6. Unscrew the sheath cone from the sheath core.
7. Remove the Dacron screen from the lower portion of the sheath cone
and visually inspect. If the screen is damaged, replace it with a new
screen. If the screen is undamaged but dirty, continue with step 8.
8. Grip the dirty screen with tweezers and dip into a clean beaker filled
with isopropanol. Repeat three times.
9. Allow the screen to air dry, or dry it with a very light flow of filtered,
compressed air.
10. Replace the screen in the sheath cone.
11. Reassemble the DMA.
(continued on next page)
To Next Page
Loading...
Need help?
General
