Rice Lake 920i Installation Manual V4.01 - Manual (Page 30)

24 920i Installation Manual
3.1.5 Total Scale Configuration
The output of two or more A/D scales or iQUBE 2
systems can be configured to function as a total scale.
Once configured and calibrated, the total scale can be
used as a source for other system functions, including
streaming, setpoints, print formatting, and analog
output.
To set up a total scale from the indicator front panel,
use the scale configuration display (see Figure 3-2) to
select the A/D scales or
iQUBE 2 systems to configure
as a total scale. (Use the Change Type softkey to show
available A/D scales or iQUBE 2 systems; use the right
navigation key to select the total scale sources.) In
iRev 4 , assign the total scale to an unused position then
select source scales from the existing A/D scales or
iQUBE 2 systems.
The FORMAT configuration of the total scale (see
Figure 3-5 on page 30) should match that of the
source scales. However, the value specified for the
total scale GRADS parameter should be specified as
the sum of the GRADS values for the source scales.
For example: if SCALE 1 is set to GRADS=10000,
SCALE 2 to GRADS=5000, SCALE 3 (the total
scale) should be set to 15000 grads.
The total scale will show an over-range indication if
the maximum ca pacity of any source scale is
exceeded, and show dashes if any source scale reads a
negative value. Source scales will respond to Tare and
Zero operations performed on the total scale.