Rinsing The Sample Cell; Performing A Background Measurement - Micromeritics Saturn II 5205 DigiSizer Installation Instructions And Checklist

Saturn DigiSizer II 5205
4. Place the On/Off switch (on the rear panel) in the ON position (O); the power indicator
should illuminate.
Be sure to turn off the AquaPrep when water is not being deaerated. Failure to have
water circulating may damage the unit.
5. Allow the water to deaerate for two hours.
Be sure circulation of the liquid being degassed is promoted.
Water varies enormously in its dissolved air content depending on source, temperature,
and time of year. Typically, the AquaPrep adequately reduces the content of dissolved air
from 10 liters of filtered and deionized water in two hours or less.
6. Remove the tubes from the container of water.
You may wish to observe and record the bubble rate per minute before removing the tubes.
This value could be useful as a guide for the adequacy of deaeration. For example, you
may observe 20 bubbles per minute. If the background measurement you will perform
next shows adequate deaeration, you can watch for approximately 20 bubbles per minute
when deaerating a fresh supply of water.
7. Move the container close to the liquid sample handler. Then insert the analysis tubing
from the liquid sample handler into the container.

Rinsing the Sample Cell

1. Select Unit > Rinse > DigiSizer; the DigiSizer Rinse dialog is displayed.
2. Select Rinses and enter 3; this should be sufficient since the cell contains no sample
material.
3. Click Start
complete, the dialog closes automatically.

Performing a Background Measurement

1. Select Unit > Background; the Background Measurement dialog is displayed.
2. Select Water from the Analysis liquid group box.
3. Click
Next
4. Set the flow rate to 6.
Jul 09
; a dialog indicating that rinsing is in progress is displayed. When rinsing is
.
Verifying Operation
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