McLane Research Laboratories Mark 78H-21, User Manual

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A-3
Figure A-4: Installing Sample Tray Front
Using the Wet Sample Divider
To use the Wet Sample Divider, complete the following steps:
1. Set the rotary head speed dial to 10 (1 revolution per second).
2. Set the tower speed dial to 4 (5 cm per second).
3. Place sample cups under the rotary head.
4. Confirm that tower is completely in the ‘Down’ position.
5. Turn the rotary head switch ‘On’.
6. Slowly pour the wet sample into the tray.
7. Press the tower switch ‘On’.
8. When the sample begins to drain from the tray, use a squirt bottle to pour a
constant stream of neutral water into the tray and move the sample down into the
sample bottles.
9. After the tower stops in the upward position, rinse the sides of the tray with water
from the squirt bottle.
10. Press the rotary head switch ‘Off’ and Remove the sample tray.
11. Rinse the side walls of the rotary head.
Slide Tray Front