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Product short description:
  • 100 ohm Pt RTD or 0-900 ohm input
  • 4 to 20mA DC output
  • 9-32V DC from output loop power
  • USB-configured
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The ST131 is a low-cost two-wire transmitter that converts a 100 ohm Platinum RTD sensor input to a proportional 4-20mA signal. Power is received from the output loop current. The transmitter provides sensor excitation and includes linearization, lead-wire compensation, and lead-break detection functions. Setup and calibration are fast and easy with a convenient USB connection to your PC and Acromag’s Windows configuration software.

Advanced signal processing capabilities, variable range input, and convenient USB programming make this instrument a very versatile temperature transmitter for RTD and resistance elements. These transmitters are designed to withstand harsh industrial environments and operate reliably across a wide temperature range with very low drift. They feature RFI, EMI, ESD, EFT, and surge protection plus low radiated emissions.

  • Easy setup and digital calibration via USB with Windows configuration software
  • Flexible RTD or linear resistance input ranges
  • High accuracy and linearity
  • Advanced analog signal conditioning ASIC eliminates digitization errors
  • Low temperature drift
  • Fast response time (< 500µS)
  • Programmable over/under-range limits
  • Selectable upscale or downscale operation for sensor errors and lead-break detection
  • NAMUR NE43 compliant fault response
  • Reverse polarity protected with non-polarized output
  • Mounts in DIN Form B sensor heads
  • Optional DIN rail adapter
  • Wide ambient operation (-40 to 80°C)
  • Hardened for harsh environments
  • CE compliant. UL/cUL Class 1 Div 2 Zone 2 approvals. Ex II 3 G Ex nA IIC T4 Gc -40°C Ta +80°C
WHITEPAPER: The Importance of Signal Isolation (Log in to view the file)

Specifications

Manuals

ST131 User Manual (Log in to download the file)

Brochures

ST131 Configuration Software (Log in to download the file)
  • Compare

    ST130 Mounting Accessories

    • Simplifies mounting of ST130 Series transmitters
    • Ideal for mounting in the field or in a control room
    $11.50$161
    Select options
  • Compare

    ST13C-SIP

    • Configuration software
    • USB isolator
    • Two USB cables
    • One kit recommended per customer
    $195.50
    Select options
  • Compare

    USB Isolator

    • USB-powered, USB 2.0 and 1.1 compatible
    • 1500V AC / 2100V DC isolation
    • No drivers required
    $113.85
    Select options

Additional information

Weight 8 oz
Dimensions 2.4 × 1.85 × 0.925 in
Part Number

USB-Isolator: includes USB cable

  • Description

    This compact, industrial-grade isolator provides a high-voltage isolation barrier between a computer and a connected USB device.

    The isolation protects equipment from electrical surges and transient voltage spikes. It also eliminates ground loop currents flowing between the PC and peripherals which can cause damage and inaccurate measurements. Additionally, isolation minimizes conducted noise from static discharge, magnetic fields, and radio frequency interference.

    Acromag’s USB isolator is very easy to use. The isolator inserts in-line with the USB connection and operates transparently. No special software drivers are required. The unit receives power from the PC’s USB port and isolates that power to the connected device. High noise immunity and low radiated emissions ensure reliable data transfer in sensitive applications.

  • Features & Benefits

    • Easy setup and digital calibration via USB with Windows configuration software
    • Flexible RTD or linear resistance input ranges
    • High accuracy and linearity
    • Advanced analog signal conditioning ASIC eliminates digitization errors
    • Low temperature drift
    • Fast response time (< 500µS)
    • Programmable over/under-range limits
    • Selectable upscale or downscale operation for sensor errors and lead-break detection
    • NAMUR NE43 compliant fault response
    • Reverse polarity protected with non-polarized output
    • Mounts in DIN Form B sensor heads
    • Optional DIN rail adapter
    • Wide ambient operation (-40 to 80°C)
    • Hardened for harsh environments
    • CE compliant. UL/cUL Class 1 Div 2 Zone 2 approvals. Ex II 3 G Ex nA IIC T4 Gc -40°C Ta +80°C
  • Tech Papers

    WHITEPAPER: The Importance of Signal Isolation (Log in to view the file)
  • Specs & Data Sheets

    Specifications

    Manuals

    ST131 User Manual (Log in to download the file)

    Brochures

  • Software

    ST131 Configuration Software (Log in to download the file)
  • Accessories

    • Compare

      ST130 Mounting Accessories

      • Simplifies mounting of ST130 Series transmitters
      • Ideal for mounting in the field or in a control room
      $11.50$161
      Select options
    • Compare

      ST13C-SIP

      • Configuration software
      • USB isolator
      • Two USB cables
      • One kit recommended per customer
      $195.50
      Select options
    • Compare

      USB Isolator

      • USB-powered, USB 2.0 and 1.1 compatible
      • 1500V AC / 2100V DC isolation
      • No drivers required
      $113.85
      Select options
  • Additional information

    Additional information

    Weight 8 oz
    Dimensions 2.4 × 1.85 × 0.925 in
    Part Number

    USB-Isolator: includes USB cable