CYBERSONICS DE-GASSER SET-UP PROCEDURE

Step 1:	Connect the power cord to any wall outlet and turn on the green rocker switch at the back of the unit.
Step 2:	Lift the knob on top of the unit to raise the transducer. Fill the provided beaker with at least 200 ml of water and put it on the beaker shelf in the front of the unit Lower the knobs all the way down to dip the transducer into the water.
Step 3:	Push "Flush" button. A green light will come on and the transducer will blow air into the water. Repeat this step without any water underneath to blow out any water droplets. This will complete the initial cleaning of the unit.
Step 4:	To test, take the desired quantity (ie. 100 ml) of a beverage (ie. Fresca) and pour it into the provided beaker. Place it on the beaker shelf and lower the transducer into it. Push the "Cycle" button. A green light will come on and the transducer will make a hissing noise, generating small micro-bubbles which indicate the ultrasonic action. A few seconds later bigger macro-bubbles will be generated, indicating the beginning of the second phase of the cycle. The cycle will end automatically in less than three minutes.
Step 5:	Take the beverage in the beaker out for NaOH titration test. The beverage is now de-carbonated.
Step 6:	Repeat Step 4 to do more tests.
Step 7:	When finished, flush the unit as described in Step 3 and turn off the green switch.

BEVERAGE TESTING

Equipment needed: Series 15,000 De-Gasser, NaOH solution, pH tester, 50 ml pipette, 100 ml graduated cylinder, plastic cups

Procedure:

1. Put 250 ml of water in the de-gasser and push "Flush" button.
2. Take cup out and push "Flush" button. Be careful to push only the "Flush"button.
3. Fill the beaker with approximately 110 ml of product.
4. Put cup in de-gasser unit and run through the cycle.
5. Using the 100 ml graduated cylinder, measure out 100 ml of product. Be consistent in the way the 100 ml is measured out.
6. Pour the 100 ml of product into a new cup.
7. Fill a 50 ml pipette with NaOH solution. Be consistent in the way 50 ml is measured.
8. Start adding the NaOH to the product and stir the solution with the pH tester.
9. Keep adding NaOH until you reach a pH of 7.6 on the tester. Then start adding drops of NaOH (about 1 cup per 0.1 rise in pH level) until a pH of 8.1 is reached.
10. Record the amount of NaOH that is required to reach pH level of 8.1.
11. Throw the cup away.
12. Rinse the beaker, graduated cylinder, and pH tester in water and blow them dry with the air hose.
13. Repeat steps 3 through 12 as needed.