UPM 2000
Netech Corporation
110 Toledo St, Farmingdale, NY 11735
http://www.Netech.org
29
1-800-547-6547
Preparing the Distilled and Degassed Water
Distilled and degassed water must be used as the coupling medium to obtain stable
and accurate readings with the UPM 2000
. The water must also be allowed to reach
room temperature
before pouring into tank in order for unit to stabilize quickly.
Use the following procedure to obtain the best coupling medium:
1. Use a Distiller to distill tap water or purchase distilled water.
2. Boil the distilled water for 30 minutes in a clean glass flask. This will force
the oxygen and nitrogen from the water. Bottle the water as soon as possible.
3. Select some small glass bottles with good seals for storing the water. Glass
canning jars work well.
4. Siphon the boiling degassed water into the bottles and fill each bottle to the
brim. Leave no air space in the bottle.
5. Cap the bottles immediately.
6. Allow the water to cool in the bottles. As the water cools, it will contract and
a vacuum will be formed if the bottles have been properly sealed. Allow the
water to cool to room temperature.
7. Label and date each bottle. The degassed water should remain good for a
long time if the seal is not broken.
8. Test each bottle for oxygen content before it is to be used.
The oxygen content should be less than 2 ppm.
Dissolved oxygen test kits are available from Netech.
(PN: 1200-B-O2KIT)
.
Note:
When the bottle is opened and exposed to air, it can be used during the
following 45 minutes. Exposure to air makes this water lose its excellent
coupling property; therefore, the bottles should not be opened until tests with the
UPM 2000 are ready to begin. Be sure to allow water to come to room
temperature before use.
