options .................utilities ............ calibration ............meters .................................................. EDIT METER Calibrations
The Meter Calibration by Average Value display is shown in Figure 8652.0Note that even though this display overwrites the
entire Main Operating Display, the plant operation and data gathering continues uninterrupted.
This screen does NOT lock out the A/C. The use of test weights or chains on the virgin scale will
simulate a virgin aggregate rate that may cause the asphalt value to switch to the RUN position. To
avoid this the operator could:
Go to MOTORS-OFF-HOLD B) Switch to DIVERT-LOCK C) Turn off the asphalt pump
Turn off the air to the RUN/DIVERT valve
This screen displays a running average of the current values of certain meters and scales. The length of time during which
the averages have been accumulating is shown at the bottom of the screen. Erratic signals can be accurately measured
by averaging over a sufficiently long interval.
The Continuation Options are:
Return to the previous display.
Restart the averaging calculation and the averaging time interval.
Averaging will proceed from this instant until stopped by the user.
Restart the averaging calculation and the averaging time interval. At the
end of 360 seconds the averaging process will be momentarily frozen at
its 6 min. value and a summary scale report will be printed if the printer is
ON and SELECTed.
Freeze the averaged measured data and allow the operator to enter
actual data values. If the actual and measured values are different, the
computer will correct the appropriate zero or span calibration value.
page F - 69
SYSTEMS Equipment Corp. 8/31/89 Page (37)