Chapter 8. Math Channels
8-1
Introduction
The
Math
Menu is used to perform math
calculations on the weight results from the
channels associated with vessel monitoring.
The calculated value can be displayed on the
Weigh II while monitoring a math channel, in
both Auto and Manual Modes. And, just like
for a vessel monitoring channel, the calcu-
lated value from a math channel can have
setpoint and current outputs associated
with it.
As shown in Figure 8-1, the
Math
Menu
includes 12 math functions. These functions
can be used to process the vessel monitoring
results in many ways. A few typical uses of
the math channels follow:
• Add together or calculate the average for
the weight from multiple vessels to provide
information on the total inventory of a
product stored in several vessels
• Convert the data from a vessel into another
set of units, such as converting a weight in
pounds into a level in feet, to provide
additional information on the vessel
contents
When in the
Math
Menu, the display shows
the math equation on the top line and the
available functions on the bottom line.
For a single-point Weigh II (equipped to
monitor only one vessel), there are seven
channels available for math calculations. For
a multi-point Weigh II (equipped to monitor up
to four vessels), there are four channels
available for math calculations.
This chapter covers the use of the
Math
Menu. The chapter includes:
• Explanation of each of the math functions
and the keyboard functions
• Rules for inputting equations
• Detailed navigation procedures for enabling
a math channel
• Detailed navigation procedures for setting
up a math channel, using an example
average weight calculation
• Explanation of compile error and run time
error codes
Chapter 8. Math Channels
Note
:
Math
comes up in the
Main
Menu if you
scrolled to a math channel while vessel
monitoring. If the channel is a vessel monitor-
ing channel, the menu tree shows
Cal
in
place of
Math
.
Figure 8-1. The Math Channel Menu Tree
Main
Disp
Math
Service
C
+
*
-
÷
=
(
)
CLR
ln
e^
I/O
Summary of Contents for Weigh II
Page 12: ...2 4 Chapter 2 Hardware Installation...
Page 20: ...3 8 Chapter 3 Menu Tree Keyboard Functions and Quick Start...
Page 50: ...6 12 Chapter 6 Calibration...
Page 68: ...A 2 Appendix A Product Specifications...
Page 70: ...B 2 Appendix B Summary of Commands Used When Vessel Mounting Hot Keys...
Page 77: ...Appendix E E 1 This appendix not used at this time...
Page 78: ...Appendix E E 2...
Page 80: ...Appendix F Technical Drawings F 2...
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Page 116: ...Appendix G Calculation of Maunal Calibration Parameters G 6...
