Micromeritics DVVA II 4000 Operator's Manual page 193

DVVA II 4000
3. Using a 9/16-in. (14 mm) open-ended wrench, release the lower piston as shown below.
While the expandable cover is removed, ensure that no foreign matter is allowed to
enter inside the cover. Also, avoid disturbing any grease found on the screw thread.
Be careful when releasing the piston, the internal components could cause injury if
your hands scrape against them.
4. Ensure that the expandable cover returns properly to its circular groove.
5. Replace the lower front panel and secure it with the four screws.
6. Close the safety shield.
7. Press the Reset button on the instrument.
8. Select Unit 1 > Return Lower Position Home from the main menu.
9. Ensure that no foreign debris has fallen into the compression chamber.
400-42803-01 (Rev B) - July 2017
Troubleshooting
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