Introduction
The purpose of this manual is to guide installers, operators and technicians through the
operation of EVO™ 200 and EVO™ 400 automatic tank gauges (ATGs). EVO™ 200 and EVO™ 400
ATGs incorporate the monitoring and alarm capabilities of preceding automatic tank gauges
with advanced technologies to supply tank and level data more accurately and efficiently. This
manual is also designed to introduce technicians to the optional LCD Graphical User Interface,
which is used as an input device to program system configuration and maintain all applications
from the front panel of the console. Overall safety issues, troubleshooting information, start-up
procedures, warranty, service and return policies, as defined in this manual, must be followed.
EVO™ 200 and EVO™ 400 ATGs consist of an open architecture console that can run multiple
Fuel Management Applications simultaneously. It typically contains a color LCD touch screen
user interface, but it can also be operated by a web-based remote interface. Magnetostrictive
Liquid Level Probes inside of the tanks provide the console with inventory and leak detection
information. A variety of optional sensors can be used to monitor containment spaces.
User interface
LED Indicators: Three LEDs below the front panel give an "at-a-glance" indication of the
system status. These LEDs are standard on all systems. The green Power LED indicates that the
system power is on. The yellow Warning LED gives indication that the console has detected a
malfunction or condition that has been deemed a Warning. The red Alarm LED indicates that the
system has detected an alarm condition.
LCD Touch Screen: The color LCD touch screen is the most commonly used user interface for the
Fuel Management System. This bright and colorful display allows easy viewing in any lighting
condition. Touching certain buttons or segments of the screen will allow access to menus or
more detailed information. Do not use sharp or pointed objects to operate the touch screen or
damage may result. If improper operation of the touch screen is noted, it may be necessary to
calibrate the touch screen. Please refer to the Routine Maintenance chapter of this manual for
calibration procedures.
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