Changes To Preset, Start/Stop Keys And Digital Fill Control Operation - Cardinal 748P Technical/Operation Manual

748P Weight Indicating Instrument Technical/Operation Manual

Changes to PRESET, START/STOP keys and Digital Fill Control Operation

This addendum is to inform users of function changes to the PRESET and START/STOP keys and the
operation of the Digital Fill Control feature. This addendum should be used in addition to the 748P
Technical/Operation Manual. That manual should be consulted for information concerning the
installation, setup, operation and service of this instrument.
PRESET KEY
This key performs three (3) functions.
1. If the PWC annunciator is turned off when this key is pressed, the bar graph display mode will be
changed to show preset weight comparator status and the PWC annunciator will be turned on.
2. If the PWC annunciator is turned on when this key is pressed, it will allow the target weights for
the presets to be entered. This display will show PSEt
can range from 1 to 8 depending on the number of preset weight comparators enabled during
setup of the 748P.
A. Press the ENTER key to display the currently stored value of preset weight.
B. If the weight is correct, press the ENTER key to advance to the Trim value.
C. If the weight is incorrect, use the numeric keys to enter the correct weight then press the
ENTER key to save it and advanceto the Trim value.
D. The display will then show tr
weight comparator. Note that the
number and will vary from 1 to 8.
E. Press ENTER to display the stored value of trim.
F. If the Trim value is correct, press the ENTER key to save it.
G. If it is not correct, use the numeric keys to enter the correct Trim value and press the ENTER
to save it and advance to the next preset weight comparator.
Remember that the trim weight is to compensate for material in transit and causes the preset to
turn on when the displayed weight equals or exceeds the Preset weight value LESS its
associated Trim weight value. Also remember that the preset is based on the displayed weight
which can be either gross or net weight.
This procedure is repeated for each of the enabled preset weight comparators. During entry of
preset and trim weights, the two bar graph elements corresponding to that preset weight
comparator will flash. After all selected preset weight comparators have been reviewed, the
748P will return to normal operation. This procedure may be stopped by pressing the CLEAR
key on PSEt PSEt = = prompt (i.e after setting PSET3=
x
3. If the Digital Fill Control feature has been enabled (during setup and calibration) when this key is
pressed, it will allow the stored Target and Trim weights for each BIN (Preset) number to be
entered.
A. Press the PRESET key. The BIN/PWC annunciator will turn on and the display will show
bi n= bi n=.
B. Use the numeric keys to enter the BIN (Preset) number and press the ENTER key.
C. The display will then show f i l l =
D. Use the numeric keys to enter the target weight and press the ENTER key.
E. The display will change to tr=
to enter the trim weight and press the ENTER key.
This procedure is repeated for each BIN (Preset) number. During entry of Stored and Trim
weights, the two bar graph elements corresponding to that BIN (preset) number will flash. After
all BIN (Preset) numbers have been reviewed, the 748P will return to normal operation. This
procedure may be stopped by pressing CLEAR on the bi n=
Note, the Target and Trim weights are stored in non-volatile memory.
Addendum for REV 1.5 and Greater
tr = = , which asks for the trim weight for the corresponding preset
x
in the display, refers to the preset weight comparator
x
PSET3= , press CLEAR to not ask for 4-8).
f i l l =, the prompt for the stored Target Weight.
tr=, the prompt for the stored Trim Weight. Use the numeric keys
PSEt = = where
is the preset number and
x x
bi n= prompt.