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Seametrics FT Series FT430/440/450 Rate/Total Indicator

The FT430/440/450 flow computers are microcontroller-based indicator/transmitters that interface with pulse output flow sensors to compute and display flow rate, flow total, and also generate output
signals representing flow. The FT430 and FT450 have one scaled pulse output and one pulse pass through. The FT440 has two scaled pulse outputs.

Seametrics FT Series FT430440450 RateTotal Indicator
Seametrics FT Series FT430440450

The FT450 is battery powered while the FT430 may be powered by an external DC power source or an optional internal AC power supply*. The FT440 is a “two-wire” or “loop powered” device, meaning that it is powered by the 4-20 mA loop circuit itself. An optional internal AC power supply* is available for the FT440 with dual 24 and 12VDC outputs to power both the loop and sensors requiring more power than the loop can supply.

Pulse and 4-20mA analog outputs can be used to signal external devices, e.g. certain metering pumps and water treatment controls. Alternatively, one or more pulse outputs can be configured as alarm
outputs. These flow computers can be password protected to prevent resetting the total or changing configuration settings.

The FT430/440/450 indicators are available in wall and meter mount configurations. The FT430 and FT440 models can also be panel mounted. Order the FT440 only if a 4-20mA output signal is a requirement or the FT450 if internal battery power is needed. Otherwise the FT430 can be
ordered.

Specifications Seametrics FT Series FT430/440/450

Power :

FT430 : 7-30Vdc, 4mA
FT440 : 9-30Vdc, 4mA (4-20 mA when loop-powered)
FT450 : Lithium “C”, 3.6Vdc, replaceable. Life is ~5 years depending on usage.

Display Rate : 5-digit autorange
Display Total : 8-digit

Rate Units :

  • Gallons/Second/Minute/Hour/Day
  • Liter/Second/Minute/Hour/Day
  • Cubic Feet/ Second/Minute/Hour/Day
  • Cubic Meters/Second/Minute/Hour/Day
  • Mega Liters/Day, Million Gallons/Day
  • Fluid Oz/Second/Minute/Hour/Day
  • Barrels/Second/Minute/Hour/Day.
  • Total Units : Gallon, Gallon x 1000, Liters, Mega Liter, Cubic Meter, Acre Feet, Cubic Feet, Cubic Feet x 1000, Million Gallon, Acre Inch, Fluid Ounce, Barrels.

Pulse Output 1 : Scaled pulse output, high alarm output or low alarm output. Optoisolated on FT430 and FT440.

Pulse Output 2 :

  • FT430 : Pulse pass through
  • FT440 : Scaled pulse output, high alarm output or low alarm output.
  • FT450 : Pulse pass through

Loop Power Output :

  • FT430 : N/A
  • FT440 : 4-20mA Loop
  • FT450 : N/A

Sensus Smart Output : Optional

Set P Range : 0.1 – 99999.9 units/pulse

Input :

  • FT430 : 5V pulse or contact closure
  • FT440 : 5V pulse or contact closure
  • FT450 : Micropower GMR Sensor (square wave)

K-Factor Range : .001 – 999999.999

Flow Alarm Output Range : 0.1 – 99999.9

Operating Temperature : -5? to 55? C (23? to 131? F)
Non-Operating Temperature : -40? to 75? C (-40? to 158? F)

Environmental : NEMA 4X, IP67

Regulatory : CE Mark

*1 Scaled output pulses have a fixed width of 100ms. Maximum pulses per second is 6.5Hz
*2 For pulse frequencies <1 Hz, increase setting in SET F menu to 3 or higher.

Features Seametrics FT Series FT430/440/450

  • Protective Cover (Optional)
  • Display
  • Setup Keys**
  • Electronics Module
  • Lower Housing
  • Data Logger (Optional)
  • Sensus Smart Output (Optional)
  • Strain Relief Cable Gland
  • Wall-Mount Brackets

Pulse Output Function Seametrics FT Series FT430/440/450

Pulse output 1 (scaled) FT430/440/450 :

  • Type : current sinking
  • Max. Voltage 36 : Vdc
  • Max. Current : 100 mA
  • Max. Frequency : 6.5 Hz
  • Pulse Width : 100 ms
  • Isolation : 300 V
  • Configurable as alarm : YES (High or Low)

Pulse Output 2 (scaled) FT440 (Note 2) :

  • Type : current sinking
  • Max. Voltage : 36 Vdc
  • Max. Current : 100 mA
  • Max. Frequency : 6.5 Hz
  • Pulse width : 100 ms
  • Isolation : 300 V
  • Configurable as alarm : YES (High or Low)

Pulse output 2 (Pass-through) FT430 and FT450 :

  • Type: current sinking
  • Max. Voltage : 36 Vdc

Max. Current :

  • FT430 : 10 mA
  • FT450 : 100 mA

Max. Frequency :

  • FT430 : 2000 Hz note 2
  • FT450 : 550 Hz

Pulse width : Same as sensor input

Isolation :

  • FT430 : 300V
  • FT450: note 1

Configurable as alarm : NO

*NOTE 1: 150 V effective isolation when using Seametrics micropower sensors.
*NOTE 2: With 2000 ohm or lower pull-up resistance.

Dimensions of Seametrics FT Series FT430/440/450

Seametrics FT Series FT430/440/450
Seametrics FT Series FT430/440/450

*Dimensions are in Inches (Millimeters)

For More Information and Price: Seametrics FT Series FT430/440/450 Rate/Total Indicator

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