FT520-86 Flow Rate Alarm
Instructions
rev b
LT-11298-A
Page 1 of 4
Specifications
Power
115 VAC (220 VAC optional),
50/60 Hz; 12 VDC
Temperature
32
°
-130
°
F (0
°
- 55
°
C)
Enclosure
Precision cast aluminum,
NEMA 4X
Alarm 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
Minutes, hours
Analog Output
4-20 mA, 0-5 VDC, 0-10 VDC,
opto-isolated
Sensor Input
Open collector current sink,
ESD protected
Max Input Frequency
1,000 Hz
Shipping Weight
7 lbs
General Information
The FT520 is a flowmeter monitor with added
output and alarm features. It is designed for use
with SeaMetrics flow meters and sensors, as well
as other units which have a pulse or frequency
output. It displays flow rate and total in large digits
on an easily-read backlit display. Units are user
selectable between gallons, cubic feet, and cubic
meters.
The primary output of this unit is is a set of user-
configurable alarm relays which can signal when a
maximum or minimum flow is reached. Applica-
tions tyically include detection of a pipeline failure
or of a pump that has run dry. The dual relays can
be connected to an alarm, auto dialer, or any other
switch-controllable device.
In addition to the flow rate alarm, the FT520 has
analog output (4-20 mA, 0-5 VDC or 0-10 VDC)
and programmable pulse output. These can be
used for data logging or to provide proportional
chemical feed, using an externally-controlled
metering pump.
Features
Relay 1
Relay 2
Pulse
Output
0.00 GPM
0.00 GAL
Set
Start
Stop
Resume
Easy-read
backlit display
Remote control terminals
(inside housing)
Rugged cast aluminum
housing
(wall or panel mount)
Choice of
rate/volume units
Alarm output
indicator LED
Accessible
control
buttons
