Seametrics FT520 v.2 - Manual

LT-10606A
Page 1 of 4
General Information Specifications
FT520 Batch Flow Processor
Instructions
rev. b
Power 115 VAC (220 VAC optional),
50/60 Hz;12 VDC
Temperature 32
°
- 130
°
F (0
°
- 55
°
C)
Enclosure Precision cast aluminum,
NEMA 4X
Batch Outputs Two Form C SPDT relay,
115 VAC 5A max
Max Pulse Output 100 mA at 60 VDC
Memory Type Non-volatile EEPROM
auto-backup
Sensor Power 12 VDC, 10 mA
Totalizer 8 digit
Rate Display 5 digit
Volume Units Gallons, cubic feet, cubic
meters, liters, million gallons
Time Units Seconds, minutes, hours, days
Analog Output 4-20 mA, 0-10 VDC, 0-5 VDC
opto-isolated
Sensor Input Open collector current sink,
ESD protected
Max Input Frequency 1,000 Hz
Shipping Weight
7 lbs
Features
Easy-read
backlit display
Remote control terminals
(inside housing)
Rugged cast aluminum
housing
(wall or panel mount)
Accessible batch
control buttons
Relay output
indicator LED
Wide choice of
rate/volume units
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.