8200-M585-O1 Rev D 210 Installation & Technical 87
DIGITAL FILL CONTROL MODE OPERATION
The Digital Fill Control (DFC) feature has been designed to control the filling or discharge of
material automatically using relays in an external enclosure. The DFC adds a number of
operation features to the indicator. Those features include:
Start Validation
Pressing the Fn key changes the display to StArt?, press the ENTER key and the display
changes to YES. To start the fill, press the ENTER key. To abort the fill, press the 0/NO key
and then the ENTER key.
Single or Two Speed or Two Speed Operation
The single speed operation provides a single output control. The two speed operation
provides a two relay (fast and slow) output control.
The two speed operation without chatter gate control, depending on the gate sequence
(G SEQ=1, 2, or 3) setting at setup, can begin the fill operation with one or two relay output
controls (fast and slow) on until the weight reaches the FAST= value. At that weight, the fast
output will be turned off and only the slow output will remain on until the SLO= weight less the
TRin= weight value is reached.
Two Speed Operation with Chatter Gate
The two speed with Chatter Gate operation uses only the fast relay control output. It will begin
the fill operation with the fast relay control output on and cycle the fast relay from continuous
on to chatter when the weight reaches the FAST= weight value. At that weight, the fast relay
will be turned on for the preset chatter time (Ct on=) 0.1 to 99.9 seconds and then turned off.
When the weight reading becomes stable, the weight value will be compared to the SLO=
value less the TRin= value. If the weight is less than the preset SLO= value less the TRin=
value the fast relay will again be turned on for the preset chatter time (Ct on=) 0.1 to 99.9
seconds and then turned off. This will be repeated until the container weight is equal to or
greater than the SLO= value less the TRin= value.
Dump Gate (Auto Discharge or Manual Discharge)
If dGAtE=YES and AdiSC=YES, the completed fill operation will immediately discharge and
PWC3 annunciator will be on indicating that dumping is taking place. The discharge will
continue until the scale weight returns to zero within the O TOL=XX value. At this point the
dump gate timer will turn on and maintain the gate open until the timer has expired at which
time the gate will close.
If AdiSC=No, the indicator will halt after filling and will wait for the DUMP key to be pressed
(or a remote manual dump command) before the material is discharged and the next fill
started.
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