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Hydraulics

Curtiss-Wright WM-830

48.5° Non-Contact, Rotary Position Sensor, Hall-Effect, Operation from a 5V Supply, Dual On-Board Circuits Providing Truly Independent Voltage Outputs.

The Curtiss-Wright’s  (Product Brand: Williams Control) WM-830 is a cost-effective rotary sensor utilizing proven Hall-effect technology to ensure accurate and reliable measurement of angular position. Mechanical engagement with the rotating portion of the sensor is via a slotted cavity, while the electrical output span corresponds to a rotation of 48.5°.

  • No-contact, Hall-effect technology
  • Internal shaft
  • Measurement angle 48.5°
  • 5V supply
  • Dual-redundant outputs
  • Fail-safe outputs
  • Voltage or PWM output options
  • Environmentally robust
  • Packard Electric ‘Metri-Pack’ 150 series connector

The operation is from a 5V supply, typically derived from the electronic control unit to which the sensor is connected. Dual onboard circuits are electrically isolated from each other, so providing truly independent voltage outputsone at 50% the level of the other – thereby allowing the host electronics to detect output errors. Further integrity is provided as the outputs enter pre-defined states in the event of connection errors to the sensor.

PWM output options are also available on request.

A robust mechanical design offers exception levels of performance with respect to water and dust, shock, vibration and temperature, meaning the sensor is ideal for use in hostile, on- and off-highway vehicle environments.

Connection to the WM-830 is via the industry-standard, Packard Electric ‘Metri-Pack’ 150 series of connectors, which offer high-reliability performance across all operating conditions.

  • Specifications
    • + expand all
    • - collapse all

    Mechanical

    Measurement Angle 48.5° Common for many electronic throttle pedal designs
    Height, Length, Width H. 77.22 mm x L. 26.05 mm x W. 43.5 mm -
    Connection Industry-standard, Packard Electric ' Metric-Pack' 150 series Offers high-reliability performance across all operating conditions
    - -
    Mechanical Validation - -
    Full Stroke Cycles 10 million
    Cycle Rate 2Hz

    Electrical

    Analog Voltage Circuit Operational supply voltage (Vcc1, Vcc2) 4.5-5.5V
    Non-operational supply voltage (Vcc1, Vcc2) 24V to -12V
    Supply current 15mA
    Output current 15mA

    Environmental

    Operating Temperature Range −40C to +85°C -
    Storage Temperature Range −40C to +105°C -
    Thermal Cycle / Stress SAE J1455 -40°C to 85°C -
    Thermal Shock −40C to +85°C -
    Humidity 120 hour exposure at 95% humidity from 27°C to 75°C -
    Vibration Random broadband 5-500Hz, 4G -
    Salt Fog ASTM B-117 96 hour exposure -
    Dust Exposure 24 hour exposure cycles -
    Chemical Exposure Diesel fuel, brake fluid, anti-freeze and plastic protectant exposure -
    Mechanical Shock SAE J1455 one meter drop to concrete -
    EMI Resistance SAE J1113-1 and E-mark compliant -

    Options

    Custom Options Contact GS Global Resources for more details -
    Measurement Angle 15-360° -
    PWM Output 200-1500Hz -

    Other

    Custom Options Contact GS Global Resources for details -
    Measurement angle 15-360°

    Applications

    A robust mechanical design offers exception levels of performance with respect to water and dust, shock, vibration and temperature, meaning the sensor is ideal for use in hostile, on- and off-highway vehicle environments -
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