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Seametrics FT400 Series Rate & Totalizer Indicator

The FT400-Series 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 FT400-Series 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. Galvanic isolation is provided for most pulse outputs. 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 meters are available in wall and meter mount configurations. The FT430 and FT440 models can also be panel mounted. Some configurations can be converted from wall to meter or meter to wall after installation if needed. Consult factory for details. Order the FT440 only if a 4-20mA output signal is a requirement and the FT450 if internal battery power is needed. Otherwise the FT430 offers the most flexibility.

*Internal power supply is available for the wall mount option only

Features

  • Simple Setup
  • DC Powered (FT430)
  • Loop Powered (FT440)
  • Battery Powered (FT450)
  • Remote or Flow Sensor Mounted Indicator
  • Rugged Plastic Housing
  • Non-volatile Memory

Applications

  • Water Treatment
  • Water Utility
  • Industrial Chemical Handling

Specifications

Model FT430 FT440 FT450
Power 7-30Vdc, 4mA 9-30Vdc, 4mA (4-20 mA when loop-powered) Lithium “C”, 3.6Vdc, replaceable. Life is ~5 years depending on usage.
Display Rate 5-digit auto range
Total 8-digit
Units 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
Outputs Pulse Output 1 Scaled pulse output, high alarm output or low alarm output. Optoisolated on FT430 and FT440.1
Pulse Output 2 Pulse pass-through Scaled pulse output, high alarm output or low alarm output.1 Pulse pass-through
Loop Power Output N/A 4-20mA Loop N/A
Set P Range 0.1 – 99999.9 units/pulse
Input 5V pulse or contact closure 5V pulse or contact closure Micropower GMR Sensor (square wave)
Input Range 0.752 – 2000Hz
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 Mark

*Specifications subject to change • Please consult our website for current data
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

PULSE OUTPUT 1 (SCALED) FT430 FT440 FT450
TYPE Current sinking Current sinking Current sinking
MAX. VOLTAGE 36 Vdc 36 Vdc 36 Vdc
MAX. CURRENT 100 mA 100 mA 100 mA
MAX. FREQUENCY 6.5 Hz 6.5 Hz 6.5 Hz
PULSE WIDTH 100 ms 100 ms 100 ms
ISOLATION 300 V 300 V NOTE 1
CONFIGURABLE AS ALARM YES (High or Low) YES (High or Low) YES (High or Low)
PULSE OUTPUT 2 (SCALED) FT430 FT440 (Note 2) FT450
TYPE Not Available Current sinking Not Available
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 FT440 FT450
TYPE Current sinking Not Available Current sinking
MAX. VOLTAGE 36 Vdc 36 Vdc
MAX. CURRENT 10 mA 100 mA
MAX. FREQUENCY 2000 Hz NOTE 2 550 Hz
PULSE WIDTH SAME AS-SENSOR INPUT SAME AS-SENSOR INPUT
ISOLATION 300 V NOTE 1
CONFIGURABLE AS ALARM NO NO

Downloads

Datasheet: Seametrics FT400 Series Rate & Totalizer Indicator

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