64
3. Third, look at the dispense TIME (DATA line 3).
Very short times (10, 20, 30 interrupts) indicate dispense devices not well matched to the task. Accuracy on a percentage
basis, cycle to cycle, will suffer. This may very well be acceptable as long as overall usage percentages are still accurate.
BAILOUT: (line 4)
If bailouts occur, vibration is usually the cause and these bailouts may be causing other problems. Raise the value of the
BAL parameter to 200 or 300 grams to reduce or eliminate unnecessary bailouts.
Vibration may also cause throughput rates to suffer due to the added time requiring to obtain acceptable weight readings.
Increase the WDF parameter to 2 or 3 grams, (WDF 00003) or (WDF 00030), or more if necessary.
Parameter Settings Printout
Press (*,7,7) to print a copy of all internal parameters. A printer must be connected and ready. Up to 13 lists will print, a
General list and 12 component lists. Only components that are turned "on" will print. Four columns will print, RAM; ROM;
200 and 900 series tables; and EEPROM. Identifying headings print above each column.
Load Cell Calibration - Printout Verification
Press (*,8,8) in Program mode to force a printout of the display on the controller front. DATE, TIME, Machine number, and
display will print:
Date:
11/09/93
Time:
17:22:01
Machine number: 002
Display Readout:
P 500.0
This is useful for obtaining printed verification of load cell accuracy for ISO and other international quality program rules.
The recommended procedure is:
1. Place the unit into the Program mode.
2. Press *88 for printout of empty bin TARE weight.
3. Place a KNOWN CERTIFIED WEIGHT into the weight bin.
4. Press *88 again for printout with the weight added.
5. The different between the two weight printouts should equal the KNOWN CERTIFIED WEIGHT.
Special Tests - Printout Verification
Using the *54 flag the following tests can be made:
If you are running these special tests in the MANUAL or PROGRAM mode, a printout will automatically occur after each test
provided the PRINT flag (*54) is turned on.
Special tests that produce printouts are TIME or CALIBRATE.
TIME
(See KEYPAD, TIME; and PARAMETERS, _LA, for more information)
The TIME function is to determine lag times of different metering devices. It also allows testing of device repeatability. The
single line printout looks like this:
TIME COMP 1 123 2749
Key:
1 = Component number
123 = Dispense time (in interrupts; 244 = 1 sec.)
2749 = Weight dispensed