Elkhart Brass UBEC 1AT AUTO TANK Fill System - Manual (Page 5)

5
OVERVIEW
The AUTO TANK System is designed to work with around-the-pump foam systems where there is a
need to fill the water tank and maintain low pressure at the pump intake while pumping foam.
Normal operations would require pressurized water from a hydrant or pumper in relay to be connected
to the input of the pump. During foam operations excessive pressure at the input side of the pump can
cause the foam system to operate at partial capacity or fail to inject foam. This limits foam system
operations to the amount of water in the tank. When pressurized supply water flow is controlled the
AUTO TANK system, the water volume in the tank of a pumper is automatically maintained. Low
pressure water is available at the input side of the pump continuously to extend foam system
operational capabilities
Features
 Maintains tank water volume between 50% and 95% full (P/N 08899155), or between 75% and
100% full (P/N 08899156)
 Controls water flow for any GPM rate
 For use with tanks over a 500 capacity
 Self-Calibrating for any shape or size tank
 Automatic or manual control
Components
 TankVision Display Module
 AUTO TANK Control Module
 Pressure Sensor
 Elkhart E3F Unibody Control Valve (Sold Separately)
 All necessary component harnesses
TankVision Display Module
The tank volume display module is waterproof and has dimensions of 4.4 inches high by 3 inches
wide. An output signal from a pressure sensor mounted on the tank is input to the display module. It is
processed and the volume of liquid in the tank is shown on the 9 LED display. An output from the
display module controls the opening and closing of the control valve when the automatic mode is
selected.
AUTO TANK Control Module
The control module provides an interface between the TankVision display module and the valve. It has
four push buttons that allow the operator to select the mode of operation. The control module also has
automatic tank fill and manual valve control indicators. The open and close LEDs provide valve
position feedback.
The controller for P/N 08899155 stays in manual or automatic mode until changed. The controller for
P/N 08899156 powers up in automatic mode even if it was in manual mode when powered down.