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Frequently Asked Questions

I am experiencing high or low assay results. What should I do?
I am getting high TDF results even after doing the de-fat procedure. How can I correct this?
I am noticing abrasions to the filter bag material. What should I do?
I have experienced a few F58 Filter Bags break open during an Acid Detergent Fiber (ADF) procedure. Why does this happen, and what can I do to minimize it?
I see a white substance floating on top of the sulfuric acid after a Kjeldahl digestion. Will this substance affect my results?
If I used expired Alpha Amylase for a NDF assay, can I re-run the bags or do I have to start over?
If the system capacity is four samples, can a customer run only two samples?
Is each position on the ANKOM FLEX instrument individually controllable? Is it possible to run different methods on each of the positions (different saponification time, evaporation time, etc.)?
Is my agitation sufficient?
Is my agitation sufficient?
Is my agitation sufficient?
Is the extraction positive pressure or vacuum based?
Is the flow path inert?
Is there a brief test you recommend to familiarize myself with the system and ensure the system is running properly?
Is there a recommended procedure for storing the TDF Instrument during a period of non-use?
Is there a special way to handle high-fat samples?
Is there a way to charge the batteries while a long study is in progress?
Is there carry-over between samples?
Little or no fluid is being delivered to the IDF and/or SDF spray nozzles at one bag position. What should I do?
Message: "ALERT Tube (X) weak. Tubing replacement recommended." What should I do?
My enzymes are draining out of the reservoirs when the instrument is idle. What should I do?
My enzymes do not appear to be pumping (the volume in the reservoirs is staying the same). What should I do?
My instrument is experiencing excessive pressure in the vessel after extraction is complete. What should I do?
My instrument is experiencing excessive pressure in the vessel after extraction is complete. What should I do?
My sample is not mixing well in one or all my bags. How can I improve the mixing?
Nitrogen - what are the requirements?
One of my modules doesn't seem to be holding or building pressure. What should I do?
One of my modules doesn't seem to be releasing pressure as set by the "Global Release" setting. What should I do?
One of my modules shows obviously erroneous pressure readings. What should I do?
One of my modules shows obviously erroneous temperature readings. What should I do?
One or more of my modules is not communicating with the GPM software. What should I do?
Our NDF Solution has turned a milky white color and has objects floating around in it. Has the solution gone bad? Is there anything we can do to get it back to its clear state?
Pet Ether is left in the vessel (>50ml) after a run. What should I do?
Should I use distilled water in my fiber rinses?
Should the batteries get hot?
The agitator is not moving, or the motor sounds strained. What should I do?
The agitator is not moving, or the motor sounds strained. What should I do?
The Chamber is full of liquid at the end of the Hydrolysis Procedure. What should I do?
The controller shows incorrect temperature. What should I do?
The F58 Filter Bag is less stiff than the F57. What is the most effective way to keep the F58 bag open in order to place sample within the bag?
The Filter Bag is not sealing. What should I do?
The Filter Bag is not sealing. What should I do?
The Filter Bag is not sealing. What should I do?
The Filter Bag is not sealing. What should I do?
The instrument temperature fluctuates or overheats. What should I do?
The instrument temperature fluctuates or overheats. What should I do?
The instrument will not turn on. What should I do?
The instrument will not turn on. What should I do?
The jars are not rotating well. What should I do?
The motor is broken and needs to be replaced. What should I do?
The PC is not connecting to the Coordinator. What do I do?
There is rust/corrosion observed around the hinge on the HCl vessel lid. What should I do?
There is solvent in the XT15/XT15I Vent Flask. What should I do?
What are the differences between the XT10 and XT15 instruments?
What are the filtration specifications for the ANKOM TDF filtration process?
What are the procedures for inserting sample and Diatomaceous Earth into the TDF Filter Bags?
What are the required temperatures for the hot water rinses?
What can cause HIGHER than expected Dietary Fiber results?
What can cause LOWER than expected Dietary Fiber results?
What can I do to extend battery life?
What do I do if the vessels are leaking?
What do the different colored cells on my GPM screen represent?
What is a MoistureStop Desiccant Pouch, how is it used, and why should I use it?
What is the best way to mix diatomaceous earth with wet, dry and moist samples?
What is the difference between IDF and SDF filter bags?
What is the max sample size you can process?
What is the porosity of the ANKOM F57 and F58 Filter Bags?
What is the recommended maintenance for the TDF instrument?
What is the run time for Total Fat?
What is the run time for Vitamins and Cholesterol?
What is the support for Gen 2 systems?
What is the TDF Filter Bag weighing procedure?
What is the typical life expectancy of rechargeable batteries?
What is the volume of "dead space"?
What material is used in the SPE column?
What periodic maintenance is required?
What purity of nitrogen is required?
What should be done if one of the brass supply valves is leaking or shows signs of corrosion within the valve?
What should I do if the enzymes are not being drawn properly?
What should my hydrolysis blank bag value be? Why would my blank bag value be higher than expected?
What size screen do we use to grind samples?
What times and temperatures should I set on my Kjeldahl to determine the protein in the IDF/SDF filter bags?
What types of samples can be run?
What waste is produced by the TDF instrument?
When should I charge my rechargeable batteries?
When should I replace the red septa if it has been pierced with a GC needle?
Where is the data from the study stored and can it be retrieved after a computer interruption?
Which official methods does the ANKOM FLEX analysis reference?
Why am I getting Low Digestibility values?
Why am I getting the message, "Error Saving to xls File" now that I've set up my new GPM software?
Why am I seeing different fluid levels in the filter bags at stations 1-3 vs. 4-6?
Why are my Crude Fat results high?
Why are my Crude Fat results low?
Why are my lignin results higher than expected?
Why are my modules with temperature sensors not communicating with the GPM software?
Why did my bag suspender trays melt?
Why did my IDF Filter Bag (or Flow-Thru bag) develop small holes during the sample digestion step after the defat process?
Why do I get low values when I hydrolyze my high-fat samples?
Why do I get negative crude fat values?
Why do I get negative crude fat values?