Ankom TDF, Operator'S Manual

Page: 26 / 78

Operator’s Manual
pg. 26 Rev A 4/30/12
When the tube integrity check is complete, the instrument will automatically execute the IDF/SDF procedure stopping
only for faults, aborts, or manual pH measurement (if configured in step 11.10). The Status screen will show actions and
faults as they occur during the automatic operation.
12. Manually measure pH.
One of the questions you are asked before starting the automated procedure is: “Check pH manually?” If you answered
“Yes” to this question, the instrument will stop during the AMG phase, display the screen below, and make a sound to
remind you to manually measure pH and adjust if necessary.
When measuring pH use a probe that can be easily rinsed to avoid loss of sample. If you add acid or base to adjust the pH,
you must mix the solution in order to get an accurate pH reading. To manually mix the solution, follow the steps below.
12.1 Move the pH probe from side to side.
12.2 Using your fingers, press the outside of the bag just above the clamp bar multiple times to mix the solution.
12.3 When you have completed the pH measurement process, press the Continue button on the status screen.
Status
Overall Progress Action in progress
IDF
Time remaining: AMG Phase
XX:XX:XX Time remaining: XX:XX:XX
SDF
Time remaining:
XX:XX:XX
pH required?
ABORT
Display
Temperatures
Yes
Check pH
then press continue
xx:xx:xx
Continue
AOAC 991.43 IDF/SDF
Status
Overall Progress Action in progress
IDF
Time remaining:
Checking tube integrity
Please wait…………..
XX:XX:XX
SDF
Time remaining:
XX:XX:XX
pH required?
Display
Temperatures
Yes AOAC 991.43 IDF/SDF