WLA200 Rev140407
7
Pressure/Vacuum Foam Tank Vent
The pressure/vacuum foam tank vent is supplied for use on sealed foam tanks.
The vent compensates for changes in tank pressure due to thermal expansion or when
withdrawing foam concentrate from the tank. Internal passageways provide a path
for air to move between the tank and a center cavity in the vent. These passageways
are self-draining and designed to prevent splashing foam from entering the center
cavity and clogging the pressure and vacuum valves. The pressure and vacuum valves
are easily accessed and disassembled for periodic cleaning or inspections. (Refer to
Maintenance section.)
Note:
The vent can compensate for a maximum foam concentrate flow rate
of 60 GPM. If the flow rate of foam concentrate from the tank will exceed
60 GPM, two (2) vents will be required.
MaxVision LED Tank Display (Optional)
The LED display is waterproof and has dimensions of 14 3/8 inches high by 1 7/8
inches wide by 7/8 inch deep. It has 96 RGB LEDs and built in LED drivers. A signal
from the primary display module is output on a two wire datalink and input to the LED
light to show the volume of liquid in the tank.
The display shows the level in 1/8 tank increments. It has a photo sensor that adjust
brightness for day or night operations. The LEDs are programmable for two modes of
display and ten brightness levels:
Ultra - All LEDs are one color and change at each 1/4 tank increment.
Typical - LEDs show four colors for 1/4 tank increments.
Remote Light Driver (Optional)
The remote light driver is waterproof and has dimensions of 4 inches high by 2.75
inches wide by 1 inch deep. An output signal from the primary display module is input
to the remote light driver. This provides the option to power four (4) 60 watt remote
lights that show the volume of liquid in the tank. The lights will show full, 3/4, 1/2,
and 1/4 tank levels.
Buzzer (Optional)
The buzzer provides an audio alarm when the tank volume drops to 25%. The
buzzer resets when the tank volume goes above 25%.
Note:
When the TankVision primary is used to control a Foam Fill FFA100
or Auto Tank ATA400 system, pin 5 does not provide a ground for the
buzzer. The primary display is programmed from the factory with a control
output on display connector pin 5 for each of these special systems. These
displays are not interchangeable.
Summary of Contents for TankVision WLA200
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