Seametrics FT520 Instructions

General Information
The FT520 is a batching flow processor with additional
output features. It is designed for use with SeaMetrics
flow meters and flow sensors, as well as other units which
have frequency output proportional to flow. In addition to
batch function, the FT520 indicates flow rate and
accumulated total in large digits on an easily-read backlit
display. Units are user selectable, and range from
milliliters per second to millions of gallons per day.
Batch output is controlled by two relays. The main relay
starts and stops the batch as a set. The auxiliary
"prewarn" relay can be used to operate a second valve,
in order to have a staged shut off at the end of the batch,
for maximum accuracy.
Analog output (4-20 mA, 0-10 VDC, 0-5 VDC) is included
for applications requiring it, such as flow rate logging.
Two programmable pulse outputs are also standard, and
can be used, for example, to provide proportional
chemical feed with a pulse-responsive metering pump.
Features
Easy-read
backlit display
Remote control terminals
(inside housing)
Rugged cast aluminum
housing
(wall or panel mount)
FT520 Batch Flow Processor
Instructions
Specifications
Power
Temperature
Enclosure
Batch Outputs
Max Pulse Output
Memory Type
Sensor Power
Totalizer
Rate Display
Volume Units
Time Units
Analog Output
Sensor Input
Max Input Frequency 1,000 Hz
Shipping Weight
rate/volume units
115 VAC (220 VAC optional),
50/60 Hz;12 VDC
32° - 130° F (0° - 55° C)
Precision cast aluminum,
NEMA 4X
Two Form C SPDT relay,
115 VAC 5A max
100 mA at 60 VDC
Non-volatile EEPROM
auto-backup
12 VDC, 10 mA
8 digit
5 digit
Gallons, cubic feet, cubic
meters, liters, million gallons
Seconds, minutes, hours, days
4-20 mA, 0-10 VDC, 0-5 VDC
opto-isolated
Open collector current sink,
ESD protected
7 lbs
Wide choice of
Relay output
indicator LED
Accessible batch
control buttons
LT-10606A
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