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c. Attach another piece of test tubing to the waste tubing connector on the
CO-ox pump tubing, and place the test tubing in the graduated cylinder.
6. Select the pump and speed to test and press
Enter.
7. Prime the tubing:
a. Press
Start Test.
b. Allow reagent water to flow through all the tubing.
c. Press Stop Test.
d. Empty the graduated cylinder.
8. Test the pump flow rate for 1 minute:
a. Place the outlet tubing in the graduated cylinder.
b. Press
Start Test and simultaneously start timing with a stopwatch.
c. Collect fluid for exactly 1 minute.
d. Press
Stop Test.
e. Compare the volume of collected fluid to the expected ranges.
Pump Volume at low speed Volume at high speed
reagent 1.51 – 1.85 mL/min 5.94 – 7.26 mL/min
sample 1.51 – 1.85 mL/min 5.94 – 7.26 mL/min
waste 1.51 – 1.85 mL/min 7.02 – 8.58 mL/min
CO-ox
0.27 – 0.33 mL/min 5.94 – 7.26 mL/min
9. If the measured volume is not acceptable, the pump tubing may be worn or
damaged, the roller cage or shaft may be dirty, or the pump speed may require
calibration.
10. Perform the appropriate action.
If you want to . . . Then . . .
measure the flow rate of the same
pump at a different speed
a. Empty the graduated cylinder.
b. Select the pump and speed to test and press
Enter.
c. Repeat steps 7 and 8.
measure the flow rate of a
different pump or return to the
Menu screen
continue with step 11.