Ohmart Vega W-4510, Technical Reference Hardware Manual

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Setup
W-4510 Weigh Scale Technical Reference Manual 69
Procedure 16: Take datapoints for linearizer curve
1. Gain access to security level 1 by entering the correct password on screen 52 .
2. Be certain the correct product code has been selected
3. Go directly to screen 168 START COLLECT and press ENTER to begin the data
collect
4. At the end of the time period, take a reading of Avg. Counts. Turn to the chart on
the following page, and enter that reading across from Full (100%)
5. Empty approximately 10% of the process go to screen 168 START COLLECT
again and press ENTER. Get a reading of Avg. Counts. Enter this number on the
chart across from 90%. Enter the exact percent of the process in the Actual
column if it differs from 90%
6. Continue until the chart is AVG COUNT section of the chart is complete
7. Note: Obtain optimal results by using 11 readings (100%, nine intermediate
values, and 0%). If 11 readings are not possible to obtain, the minimal number of
readings necessary is five (100%, three intermediate values, and 0%). In either
case, the exact number of the intermediate values must be known
8. Call Ohmart Field Service (513) 272-0131 with the chart entry points. They can
calculate the 41 data points for you. Prepare to write down these points in the third
column of the chart
9. If Password has expired, regain entry to level 1
10. Go to screen 528 CURVE # . This is located in the core of the computer memory.
Take great care when working with information at this level
11. Press HELP to secure the linearizer curve number of interest
12. Enter the NEW VALUES (from Ohmart) for each ITEM NO .
•
Use AUTO/MAN key to scroll forward one at a time through datapoints 0–40.
•
Use the YES/NO key to scroll backward one at a time through the ITEM NO.s.
Do not go back past 0
13. Continue past Item 40 (entry value=10000) to Item 41. Enter a 1 to indicate in
software that a linearizer curve is needed for this application
14. Connect write protect jumper, JP17 and save to EEPROM
15. Disconnect the write protect jumper, JP17. This protects the information in the
EEPROM.