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Product short description:
  • 0 to 25.6KHz frequency input range
  • DC voltage or DC current output
  • DIN rail G or T mount

These transmitters accept periodic or pulse waveform signals such as those originating from tachometers, magnetic transducers, and turbine flow meters, and provide a proportional process current or voltage output signal.

 

 

250T-FQ, 350T-FQ, 450T-FQ: Frequency Input Loop, DC, or AC-Power Transmitter Description

These transmitters accept periodic or pulse waveform signals such as those originating from tachometers, magnetic transducers, and turbine flow meters, and provide a proportional process current or voltage output signal.

Models

250T: Loop-powered transmitter series
350T: DC-powered transmitter series
450T: AC-powered transmitter series

250T-FQ, 350T-FQ, 450T-FQ: Features & Benefits

  • Excellent accuracy and stability ensure reliable measurements in harsh industrial environments
  • RFI and EMI resistance minimize the effects of environmental noise
  • 90% span adjustment enables precise application calibration
  • Quartz crystal time-base design improves temperature performance
  • Field-selectable time constants optimize output response time and ripple characteristics
  • Selectable threshold circuits accept uni-polar/bipolar inputs (0V bipolar, 1.5V unipolar)
  • Excitation/pull-up circuit adds flexibility
  • 1500V AC peak isolation (250V AC or 354V DC continuous) prevents ground loops
    • 250T models: Input isolated from output/power
    • 350T models: Input isolated from output and power. Output and power share a common
    • 450T models: 3-way isolation. Input, output, and power circuits are isolated from each other
  • Operating temperature range: -13 to 185°F (-25 to 85°C)

Manuals

250T-FQ1 User Manual (Log in to download the file)

350T-FQ1 User Manual (Log in to download the file)

450T-FQ1 User Manual (Log in to download the file)

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    350T NEMA Enclosure

    Mounting Accessories NEMA-4 and MEMA-12 Enclosures
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    ACC1014: Flat Pack Mounting Kit

    • Surface mount for 250T, 260A and 270i series
    • Snaptrack mount 250T, 260A and 270i series
    Select options
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    DIN Rail: Type T

    • DIN Rail Strip, Type T
    Select options
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    PS5R: Slim Line Power Supplies

    • 10W, 15W, 30W, 60W, 90W, 120W, and 240W models
    • Universal Input (85-264V AC / 100-370V DC)
    • Lightweight and compact size
     
    Select options

Additional information

Weight 16 oz
Dimensions 3 × 1 × 3.2 in
Part Number

250T-FQ1-DIN-DT1: CSA approval, Div. 2 hazardous locations, 250T-FQ1-DIN-NCR: no certification/approval required, 350T-FQ1-V0-DIN-NCR: 0 to 10V DC output; no certification/approval required, 350T-FQ1-Y-DIN-NCR: 4 to 20mA DC output; no certification/approval required, 450T-FQ1-Y-1-DIN-NCR: 4 to 20mA DC output; 115V AC power; no certification/approval required

Product Series

FlatPack Series

  • Description

    250T-FQ, 350T-FQ, 450T-FQ: Frequency Input Loop, DC, or AC-Power Transmitter Description

    These transmitters accept periodic or pulse waveform signals such as those originating from tachometers, magnetic transducers, and turbine flow meters, and provide a proportional process current or voltage output signal.

    Models

    250T: Loop-powered transmitter series
    350T: DC-powered transmitter series
    450T: AC-powered transmitter series

    250T-FQ, 350T-FQ, 450T-FQ: Features & Benefits

    • Excellent accuracy and stability ensure reliable measurements in harsh industrial environments
    • RFI and EMI resistance minimize the effects of environmental noise
    • 90% span adjustment enables precise application calibration
    • Quartz crystal time-base design improves temperature performance
    • Field-selectable time constants optimize output response time and ripple characteristics
    • Selectable threshold circuits accept uni-polar/bipolar inputs (0V bipolar, 1.5V unipolar)
    • Excitation/pull-up circuit adds flexibility
    • 1500V AC peak isolation (250V AC or 354V DC continuous) prevents ground loops
      • 250T models: Input isolated from output/power
      • 350T models: Input isolated from output and power. Output and power share a common
      • 450T models: 3-way isolation. Input, output, and power circuits are isolated from each other
    • Operating temperature range: -13 to 185°F (-25 to 85°C)
  • Specs & Data Sheets

    Manuals

    250T-FQ1 User Manual (Log in to download the file)

    350T-FQ1 User Manual (Log in to download the file)

    450T-FQ1 User Manual (Log in to download the file)

  • Accessories

    • Compare

      20RM-16-DIN: 19” rack-mount kit with DIN rail

      • 19" rack-mount kit with DIN rail
      Select options
    • Compare

      350T NEMA Enclosure

      Mounting Accessories NEMA-4 and MEMA-12 Enclosures
      Read more
    • Compare

      ACC1014: Flat Pack Mounting Kit

      • Surface mount for 250T, 260A and 270i series
      • Snaptrack mount 250T, 260A and 270i series
      Select options
    • Compare

      DIN Rail: Type T

      • DIN Rail Strip, Type T
      Select options
    • Compare

      PS5R: Slim Line Power Supplies

      • 10W, 15W, 30W, 60W, 90W, 120W, and 240W models
      • Universal Input (85-264V AC / 100-370V DC)
      • Lightweight and compact size
       
      Select options
  • Additional information

    Additional information

    Weight 16 oz
    Dimensions 3 × 1 × 3.2 in
    Part Number

    250T-FQ1-DIN-DT1: CSA approval, Div. 2 hazardous locations, 250T-FQ1-DIN-NCR: no certification/approval required, 350T-FQ1-V0-DIN-NCR: 0 to 10V DC output; no certification/approval required, 350T-FQ1-Y-DIN-NCR: 4 to 20mA DC output; no certification/approval required, 450T-FQ1-Y-1-DIN-NCR: 4 to 20mA DC output; 115V AC power; no certification/approval required

    Product Series

    FlatPack Series