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Product short description:
  • TC type J, K, T, R, S, E, B, and N or ±100mV input
  • 1500V isolation
  • 4 to 20mA DC output
  • USB-configured
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The ST133 is a low-cost two-wire transmitter that isolates and converts a millivolt or thermocouple sensor input to a proportional 4-20mA control signal. Power is received from the output loop current. The transmitter performs signal linearization, cold-junction compensation, and lead-break detection functions.

High-voltage isolation separates the input from the output circuit. Isolation protects from surges, reduces noise, and eliminates ground loop errors. 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 measurement device. These transmitters can 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 thermocouple or millivolt input ranges (TC Type J, K, T, R, S, E, B, N or ±100mV)
  • 1500V input isolation
  • 24-bit A/D micro-controller
  • High accuracy, linearity, stability, and reliability
  • Low temperature drift (<75ppm/°C)
  • Fast response time (as low as 90ms)
  • User selectable filtering (none, low, med., high)
  • Supports reverse-acting (inverse) output
  • Selectable upscale or downscale operation for sensor errors and lead-break detection
  • Non-polarized output/power connection
  • Mounts in DIN Form B sensor heads
  • Shock (50g) and vibration (5g) resistant
  • 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 certified.
WHITEPAPER: The Importance of Signal Isolation (Log in to view the file)
APP NOTE: Thermocouple Transmitters Monitor Temperatures in Paint Systems
WHITEPAPER: Minimizing Measurement Error When Making Thermocouple to Transmitter Connections (Log in to view the file)
WHITEPAPER: The Basics of Temperature Measurement Part 1: Using Thermocouples (Log in to view the file)

Specifications

Manuals

ST133 User Manual (Log in to download the file)

ST132 and ST133 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
    $15$155
    Select options
  • Compare

    ST13C-SIP

    • Configuration software
    • USB isolator
    • Two USB cables
    • One kit recommended per customer
    $190
    Select options
  • Compare

    USB Isolator

    • USB-powered, USB 2.0 and 1.1 compatible
    • 1500V AC / 2100V DC isolation
    • No drivers required
    This compact, industrial-grade isolator provides a high-voltage isolation barrier between a computer and a connected USB device.
    $110
    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.

    A number of high-performance features help provide convenient and dependable operation. The green LED indicates that power is being received and blinks if the connected device draws too much current. An internal jumper lets you switch from Full Speed (12 Mbps) to Low Speed (1.5 Mbps) communication. The reset button offers a simple way to reinitialize a connected device without breaking the cable connection. High-retention USB sockets keep cables securely attached under shock and vibration.

  • Features & Benefits

    • Easy setup and digital calibration via USB with Windows configuration software
    • Flexible thermocouple or millivolt input ranges (TC Type J, K, T, R, S, E, B, N or ±100mV)
    • 1500V input isolation
    • 24-bit A/D micro-controller
    • High accuracy, linearity, stability, and reliability
    • Low temperature drift (<75ppm/°C)
    • Fast response time (as low as 90ms)
    • User selectable filtering (none, low, med., high)
    • Supports reverse-acting (inverse) output
    • Selectable upscale or downscale operation for sensor errors and lead-break detection
    • Non-polarized output/power connection
    • Mounts in DIN Form B sensor heads
    • Shock (50g) and vibration (5g) resistant
    • 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 certified.
  • Tech Papers

    WHITEPAPER: The Importance of Signal Isolation (Log in to view the file)
    APP NOTE: Thermocouple Transmitters Monitor Temperatures in Paint Systems
    WHITEPAPER: Minimizing Measurement Error When Making Thermocouple to Transmitter Connections (Log in to view the file)
    WHITEPAPER: The Basics of Temperature Measurement Part 1: Using Thermocouples (Log in to view the file)
  • Specs & Data Sheets

    Specifications

    Manuals

    ST133 User Manual (Log in to download the file)

  • Software

    ST132 and ST133 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
      $15$155
      Select options
    • Compare

      ST13C-SIP

      • Configuration software
      • USB isolator
      • Two USB cables
      • One kit recommended per customer
      $190
      Select options
    • Compare

      USB Isolator

      • USB-powered, USB 2.0 and 1.1 compatible
      • 1500V AC / 2100V DC isolation
      • No drivers required
      This compact, industrial-grade isolator provides a high-voltage isolation barrier between a computer and a connected USB device.
      $110
      Select options
  • Additional information

    Additional information

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

    USB-Isolator: includes USB cable