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AW Company 8809 Industrial Drive, Franksville, WI 53126 à web: www.awcompany.com
Tel: 262-884-9800 Fax: 262-884-9810 | Email: aw@awcompany.com
REV. 4 10/05 EMO-500 Manual.DOC
4
Introduction
The EMO-500 is a Two Component Ratio and Flow Computer. It is primarily designed
for use as a two component, ratio monitoring unit but can also be used as a Two Channel
Flow Rate Monitor and Totalizer. The EMO 500 has the added capability of current
(4-20mA) and voltage (0-5V) analog output signals. These outputs can be used as a
representation of a selectable range of functions or in a ratio linked, closed loop mode -
Ratio Feedback Mode.
The unit is powered by 110V AC but can be jumpered for 220V AC.
The back panel provides these features:
< 18V supply plus ground and input lines for two flow meters.
< 4 programmable relay switched limits which can be used for warnings, alarms, or
automatic shut-down control.
< 5 "Ready to Hardwire" function controls. #'s 1 through 4 allow for remote
operation of resets, display, and Quick Programming. # 5 will "enable" the main
programming menu.
< RS-232 and RS-485 serial ports.
< Analog outputs (4 - 20mA) and (0 - 5V).
Programming functions are shown in red on the keypad.
All of the default program variables can be changed to alternative values through
the keypad or by a host computer with an RS-232 serial port. There are security features
to prevent unintended programming changes - for more information review the pages on
Quick Programming and Full Programming. The Quick Programming functions
allocated to certain keys are indicated in red on the keypad. Keys F1 through F6 have
multiple functions and are also used for the main programming purposes. The alternative
function of each key when in Full Programming Mode is indicated by a banner on the
keypad immediately above these specific keys.
When programming is not enabled the F3/F4/F5 serve as Job Resets and keys 0 through9
are used to select from the 11 operating displays shown on page 1.
IMPORTANT----IMPORTANT----IMPORTANT----IMPORTANT The higher flow side should be connected to
flow meter A as the Ratio calculation is A/B
IMPORTANT----IMPORTANT----IMPORTANT----IMPORTANT