7-2
CW-80 Checkweigher Installation/Service Manual
Green Segment (1)
The green segment (Figure 7-1) indicates an Accept value. When
illuminated, the green segment light indicates that the container weight
is within the actual acceptable band of weight limits (Figure 7-2).
Amber Segments (2)
The amber segment (Figure 7-1) indicates an Over weight value. When
illuminated, the amber segment(s) indicate that the container weight is
more than the highest acceptable weight value. There are 3 levels of
Over weight readings. The leftmost amber segment is used to indicate
that the container weight is slightly over the acceptable weight band
(Figure 7-2); the rightmost amber segment is used to indicate that the
container weight is greatly above the acceptable weight band. Illuminat-
ing both amber segments indicates moderately overweight.
Setting Bar Graph Segments
Setting Weight Bar Graph Values: Ov 1, Un 1
The ACCEPT band tolerances are set using weight values. Depending
on the operating mode chosen, these values can be set by the installer in
the Configuration mode, or can be set by the operator in Normal
Weighing mode. When the weight on the scale just exceeds the
ACCEPT band by 1 display division, the first amber segment lights.
This level is set as Ov 1, or slightly over. When the weight on the scale
is under the ACCEPT band by 1 display division, the first red segment
lights. This level is set as UN 1, or slightly under. See Section 5,
Operating Modes, for information on setting Ov 1 and UN 1 values.
Setting Graduation Bar Graph Values: Ov 1-2, Ov 2, Un 1-2, Un 2
The other bar graph settings can be set only in the Configuration mode,
and are set using graduation (dd) values.
Moderately under (both red segments) is set as UN 1-2.
Greatly under (leftmost red segment) is set as UN 2.
Moderately over (both amber segments) is set as Ov 1-2.
Greatly over (rightmost amber segment) is set as Ov 2.
Calculating Tolerance Values in Graduations
To find the graduation value for a desired tolerance (where tolerance is
a weight value), use the following formula:
Tolerance
÷
dd = graduation
Example: CW-80 with 6 lb x .002 display divisions in TARGET mode
Assume the desired tolerance for the product will be .01 lb
To find .01 lb expressed in graduations, divide .01 lb by .002 lb/grad
.01 lb
÷
.002 lb/grad = 5 graduations
