Rice Lake IQ plus 800 Installation & Operation Manual page 100

NOTE:
Although each of these analog
outputs is hooked up and
calibrated in the same manner,
please note that each module
has separate calibration
parameters in the configuration
menu under Analog Out.
Figure 8-20. Analog output
submenu layout
8-20 IQ plus 800/810 Installation Manual
SOURCE ZERO
number
TOT G TOT N
CH2 N CH3 G
First, choose the source that the analog output will track. Scroll to the
selection labeled "SOURCE". Move down to get to the selectable
choices. They are Gross or Net of Channel 1, 2, 3, 4 or TOTAL. For the
purposes of calibration, it is best to set the source to the GROSS of a
channel so that you can calibrate without having to work with a Tare.
After the calibration is completed, you may then change it to a NET if
you wish. After making your selection, move up one level and horizon-
tally to the right to the selection labeled "ZERO".
Entering coarse zero and span values
The next step is to enter the "Coarse" Zero and Span values. These
values give the indicator a starting point from which to work and must
be entered before final calibration can be completed. Without these
values entered, you may see a zero or span shift of the analog output
while doing your final calibration of the analog output.
The coarse zero is entered by moving down from the "ZERO" prompt.
At this level, enter a 7.5 for the coarse zero if you will be hooking up
and using the 0 to 10V output, or enter 3100 if you will be using the 4 to
20 mA output. After entering the proper coarse zero value, push the
ENTER key. Move up to the "ZERO" prompt and horizontally to the
right to the "SPAN" prompt.
The next step we need to perform is entering the coarse span value. This
is done by first making a simple calculation based an the type of output
that you will use and the weight value that you wish to equal the full
span output. The values that you will use for the coarse span values are:
15300 For 0 to 10 Volt Output
12400 For 4 to 20 milli-amp Output
You simply divide the proper number from above by the full span
weight value.
XXXXXXX ALG OUT
ALGOUT1 ALGOUT2
SPAN same as ALGOUT1
number
CH1 G CH1 N
CH3 N CH4 G
CH2 G
CH4 N