Natural will dispense after the Color (or Additive) dispense and will be calculated to assure the most exact percentage ratio for the selected component. Because the Natural dispense is larger, this method allows for more exact ratioing of the one selected critical component.
NOTE: Do not use this feature in combination with *69.
*83 Press (*,8,3) to select "Progressive Metering" option. Progressive Metering allows for more accurate dispenses of selected components. However, cycle time will be extended by a few additional seconds.
In normal operation blenders target a dispense of the full requested amount in one try. This almost always works, and generally will fall within acceptable upper and lower error limits. Making the dispense in one try allows for high throughput rates while still achieving a level of accuracy acceptable for most processors. When the accuracy of one particular component is critical, or the process depends on maintaining a tighter tolerance of this component, customers may lengthen the blend cycle time slightly to achieve this higher level of accuracy.
The *83 function is used to turn on the progressive metering function for a selected component. This sets parameters which will cause the dispense to occur in several progressively smaller dispenses. This results in a more accurate dispense.
The first dispense targets only 85 percent (the default percentage) of the full required amount. After careful weighing, each successive dispense targets 50 percent of the remaining shortage. This continues until the amount reaches, or is within 1 percent of, the target. In this manner the software "sneaks up" on the target, providing the maximum achievable accuracy possible.
When a component is selected and turned ON, the corresponding PT and RP parameters are set to PT 00085 and RP 00001.
The keypad sequence:
Press *,8,3. Display will say (COL OFF).
Use the "*" key to walk through all the components. Use the "CE" key to toggle a component ON or OFF. When ON, Display will say (C=ON 85).
You may change the 85 by entering a different number.
Too low will just add time. Too high will cause occasional overshooting.
Press EXIT when done to save new settings.
*86 Press (*,8,6) to select a new "Back Door" password for your software. Display will say (BDP 00000). Enter 00001 up to 00009 to select one of nine new backdoor passwords. Contact us for the actual number. If you just want to kill the use of a backdoor password altogether, just enter a number from 1 to 9, and don't call us. Then no one in you plant will
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