Seametrics FT500 Instructions

General Information
The FT500 flow computer provides rate and total flow
display, as well as additional output features. It is de-
signed for use with SeaMetrics meters, as well as many
other meters which provide a pulse-type output. Flow
rate and total are alternately shown, in user-selectable
units, on a large alphanumeric LCD display. The accu-
mulated total can be reset with a series of keystrokes.
High-flow and low-flow alarm setpoints are a standard
feature. The relay outputs of these alarms can be used
to operate a warning device such as an autodialer, or to
shut off critical equipment, such as a pump. The stan-
dard programmable pulse output is useful for metering
pump proportional feed or telemetry.
An optional analog output (0-10 V or 4-20 mA) is easily
field-calibrated. Zero and span are front-panel pro-
grammed in flow units.
The FT500 comes in a weathertight enclosure with a
hinged clear cover over the membrane front panel. Ter-
minal acccess is simplified by a separate cover. Both
12 VDC and 115 VAC versions are available.
Large, alphanumeric
display
Hinged door cover
for protection
Press to select
displayed function
FT500 Flow Computer
Instructions
Specifications
Power
Temperature
Humidity
Enclosure
Outputs
Max Pulse Output
Memory Type
Sensor Power
Totalizer
Rate Display
Engineering Units
Analog Output
Sensor Input
Shipping Weight
High/Low flow
alarm indicators
(correspond to relays)
FT500
FLOW COMPUTER
Terminal cover
removes for
easy access
115 VAC or 12-16 VDC
(optional), 4 watts max
32° - 130° F (0° - 55° C)
85% non-condensing relative
Polystyrene (NEMA 4X with
conduit connection option)
Two form C SPDT relay 120
VAC 5 A max.
100 mA at 60 VDC (100ms)
Battery-backed RAM
(10 year retention)
12-16 VDC, 50 mA
8 digit (resettable)
5 digit (0-99999)
1000 gal., cubic mtr., cubic ft.,
Imp. gal., gal., liters, 0.1 gal.,
fluid oz., cubic in., and mm.
Optional 0-10 VDC or 4-20
mA 8-bit resolution, 500 ohm
max load
Max. current 25 mA at 12
VDC, Max. frequency 500 hz
5 lbs.
Automatic recalculation
of units
Increase setting value
Forward to
next display
Decrease
setting value
Back to
previous display
PUB -19501-0796
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