ANKOM 2000 Series - Manual (Page 18)

Operator’s Manual
pg. 18
Rev E 1/14/15
8. Press ENTER on the Keypad and follow the prompts on the Display to set up the instrument for ADF
analysis.
9. Close the Vessel Lid and tighten it by turning the Vessel Clamp Handle.
If you do not want to use the Cubetainers to automatically add your solutions, you
can manually fill the vessel for each procedure. First make sure that the hoses to
the Cubetainers are disconnected. Then press START on the Keypad and
immediately pour 2L of solution directly into the vessel. Please note that the
solution must cover the level sensor in order for the instrument to start its
operation.
10. Press START on the Keypad. Solution from the Cubetainer will flow into the vessel through Port B.
Once the analysis begins, digestions and rinses occur automatically, with the
analyzer Display providing information about the process time remaining, the
temperature, and the pressure. Pressing STOP on the Keypad at any time during
the analysis ends the operation and opens the drain to exhaust the solution.
11. When the “Process Complete” message appears on the Display, the analyzer operation is complete.
Open the Vessel Lid and remove the Samples at this time.
12. Gently press out excess water from the bags.
13. Place bags in a 250ml beaker and add enough acetone to cover them. Let the bags soak in acetone for
3 – 5 minutes.
14. Remove the bags from the acetone and place them on a wire screen to air-dry.
IMPORTANT
Do NOT place bags in the oven until the acetone has completely evaporated.
15. Place air-dried bags in the oven and heat at 102°C ± 2° for 2 – 4 hours (depending on the oven).
16. Remove the samples from the oven and place them in a Desiccant Pouch.
IMPORTANT
Do NOT use conventional countertop or cabinet desiccators for this analysis.
17. Allow the samples to cool to room temperature. This should take about 10 – 15 minutes.
18. Remove one filter bag from the Desiccant Pouch. Press the pouch to remove ambient air and zip it tight.
19. Re-weigh the filter bag (W
3
) immediately.
20. Repeat steps 18 and 19 for each filter bag in the Desiccant Pouch.