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TDF Analytical Diagnostic Questionnaire
Yes, Electrostatic Discharge (ESD) can cause the flash programming of the XBee chips in your #RF1, RF1X , # RF5 , and RF5X modules to become corrupted and stop communicating with the RF GPM software. Therefore, we highly recommend using an ANKOM Anti...
To properly set up your instrument for the various fiber analyses, refer to the A2000 Operator's Manual.
The extraction process utilizes positive pressure at ~2.8psi.
We suggest a purity of 99.998% nitrogen or purer as it is used to expedite solvent evaporation. We have not tested less pure nitrogen and therefore cannot validate that it will not adversely affect analyte recovery.
No. The instrument exhaust lines (both waste and vent lines) are trapped and ready to be connected to an exhaust system.
A "drain error" usually occurs if the level sensor senses the solution in the vessel after the drain has opened. If the vessel is empty, and the level sensor indicates "Full," the level sensor must be fixed. If the vessel is full of solution after...
Possible Causes: The controller needs to be reset. See DELTA Service Procedure Controller Temp Menu Setup (DES015) to determine if menu settings are incorrect and to make the appropriate changes. If the controller reset doesn't resolve the problem...
Possible Causes: The power cord is not plugged into the unit or power source. The main power switch is not turned on. One of the system circuit breakers (fuses) needs to be replaced. Refer to DELTA Service Procedure Fuse Replacement (DES025).
Refer to Service Procedure High Blank Bag Values (DES035).
The Nestle Quality Assurance Center (NQAC) in Dublin, Ohio specializes in food quality and safety testing for food and ingredient manufacturers around the world. With locations in Asia, Europe, and North and South America, Nestle is a renowned global...
The Blank Bag Correction allows for a weight adjustment based on actions that take place during solubilization. The resulting factor increases or decreases your sample bag weight. To determine the blank bag correction, include at least one empty...
When the neutral detergent solution gets cold, some of the components will begin to precipitate out of solution. As a result, the solution will turn milky white, and particles will be floating in it. These particles can be brought back into solution...
Depending on what you are testing, refer to section ADF Analysis, NDF Analysis, or Crude Fiber Analysis in the DELTA, A200, or A2000 Fiber Analyzer Operator's Manual.
Refer to XT15 Service Procedure Fault – ETS (X5S016). Note: Older XT15 software may present variations in fault wording. Should technical service be required, please photograph the fault screen so the technician can verify the software version.
This fault display means that at the end of the extraction, the level sensor detected solvent in the vessel (at the end of the run, the vessel should be empty and the sensor should not detect solvent). The instrument has either a Teflon Level Sensor...
When using the Mojonnier mixture of solvents, a black residue may build up on the bottom of the vessel. If this coating becomes too thick, an "Overtemp Fault" "<Enter>" may occur. The black residue can be cleaned using a drill with a long-shafted...
This can occur with samples that are very low in fat. Moisture left in low-fat samples after extraction is the issue. As AOCS Procedure AM 5-04 indicates, when the Filter Bags are removed from the Extractor, they should be placed in an oven at 100...
Petroleum ether is the most common solvent recommended for use in XT Extractors. Many other solvents will work depending on your objectives but may require upgrades to the method or instrument for them to run effectively. Hexane, for example, will...
A "Low Pressure" error occurs when the vessel does not have at least 3 psi after 13 minutes. Possible Causes: (1) The lid was not tight. You do not have to over tighten the lid, but it needs to be snug. Usually, a finger tight + 1/4 turn is adequate...
The solenoid will become hot if the valve open check box is left checked. Normal valve openings are very brief and within a range of 10-1000 milliseconds, which does not cause the solenoid cylinder to get hot. If the Open Valves button is clicked or...
There may be a problem with the radio frequency (RF) chip attached to the circuit board. This is a dark green/blue colored chip with a black antenna. Refer to RF Service Procedure Chip and Board Replacement (RFS013) for help in identifying the part...
Please refer to Appendix E of the Operator's Manual.
For illustrations of melted trays, see A200 Service Procedure Temp Probe Replacement (FS016). Bag suspender trays can melt when there is not enough solution in the vessel to cover all of the trays while the instrument's heat is activated. Possible...
This is likely due to a valve that may be "stuck" closed. If the instrument has not been used in a while, it is possible that the solution is simply to clean the valves and clean any debris or buildup that may have settled on the valve piston. To...
There is a leak. The most common cause is a leaky Q1 valve, which would cause cooling water to flow into the vessel during the heating stage. To test: Turn the instrument completely off but keep the water supply on. Check to see if water is running...