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Seametrics FT500 User Manual

Dis con tin ued

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PUB -19501-1000

Page 1 of 4

Specifications

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.

Power 115 VAC or 12-16 VDC

(optional), 4 watts max

Temperature 32

°

- 130

°

F (0

°

- 55

°

C)

Humidity 85% non-condensing relative
Enclosure Polystyrene (NEMA 4X with

conduit connection option)

Outputs Two form C SPDT relay 120

VAC 5 A max.

Max Pulse Output 100 mA at 60 VDC (100ms)
Memory Type Battery-backed RAM

(10 year retention)

Sensor Power 12-16 VDC, 50 mA
Totalizer 8 digit (resettable)
Rate Display 5 digit (0-99999)
Engineering Units 1000 gal., cubic mtr., cubic ft.,

Imp. gal., gal., liters, 0.1 gal.,
fluid oz., cubic in., and mL.

Analog Output Optional 0-10 VDC or 4-20

mA 8-bit resolution, 500 ohm
max load

Sensor Input Max. current 25 mA at 12

VDC, Max. frequency 500 hz

Shipping Weight 5 lbs.

FT500 Flow Computer
Instructions

Terminal cover

removes for

easy access

High/Low flow

alarm indicators

(correspond to relays)

Automatic recalculation

of units

Large, alphanumeric

display

Hinged door cover

for protection

Press to select

displayed function

Decrease

setting value

Back to

previous display

Forward to

next display

Increase setting value

FT500

FLOW COMPUTER

DIS

CON

TIN

UED