Products / LORD Microstrain Wireless Systems / Wireless Nodes

SG-Link 200 OEM, Wireless Analog Input Node

By LORD Microstrain

• 1 differential and 1 single-ended input channel
• Differential channel compatible with 120, 350, and 1k Ohm
• Wheatstone bridge sensing circuits
• On-board temperature sensor
• Digital input channel for RPM and pulse counting
• Supply power from 3.3 to 30 V
• Continuous, periodic burst, and event-triggered sampling
• Output raw data and/or derived channels such as mean,
• RMS and peak-peak
• LXRS protocol allows lossless data collection, scalable
• Networks and node synchronization of ±50 µs
• Remote strain calibration using on-board shunt resistor

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  • General Information

    LORD Sensing Wireless Sensor Networks enable simultaneous, high-speed sensing and data aggregation from scalable sensor networks. Our wireless sensing systems are ideal for test and measurement, remote monitoring, system performance analysis, and embedded applications.

    The SG-Link®-200-OEM allows users to remotely collect data from a range of sensor types, including strain gauges, pressure transducers, and accelerometers. The node supports high resolution, low noise data collection from 1 differential and 1 single-ended input channels at sample rates up to 1 kHz. A digital input allows compatibility with a hall effect sensor for reporting RPM and total pulses, making the sensor ideal for many torque sensing applications.

    Users can easily program nodes for continuous, periodic burst, or event-triggered sampling with the SensorConnect software. The optional web-based SensorCloud®interface optimizes data aggregation, analysis, presentation, and alerts for sensor data from remote networks.

  • Specifications

    Analog Input Channels

    Sensor input channels 1 differential, 1 single-ended and 1 RPM/pulse input
    Sensor excitation output* Configurable 1.5 or 2.5 V (100 mA)
    Measurement range 0 to Excitation Voltage (1.5 or 2.5 V)
    Adjustable gain 1 to 128
    ADC resolution 24-bit
    Noise (Gain = 128) 1 µVp-p to 20  µVp-p ( filter selection dependent)
    Noise (Gain = 1) 15 to 250 µVp-p (filter selection dependent)
    Temperature stability (-40 to +105° C) 0.172 μV/ ° C (typical)
    Digital filter** Configurable SINC4 low pass filter for reducing noise
    Strain calibration Onboard shunt resistor used for deriving strain
    calibration coefficients (y = mx + b)
    Shunt calibration resistor 499k Ohm (± 0.01%)

    Integrated Temperature Channel

    Measurement range – 40 °C to 105 °C
    Accuracy ±0.25° C

    RPM Sensing

    Sensor input Open collector, open drain or digital pulses from hall effect or other source
    Range 0.1 to 100 Hz (6 to 6000 RPM)
    Accuracy ±0.1% (typical)


    Sampling modes Continuous, periodic burst, event triggered
    Output options Analog: Calibrated engineering units, adc counts and derived channels (mean, RMS and peak-peak)
    Digital: Speed (Hz or RPM) and pulse counts
    Sampling rates Up to 1024 Hz
    Sample rate stability ±5 ppm
    Network capacity Up to 128 nodes per RF channel (bandwidth calculator:)
    Node synchronization ±50 µsec
    Data storage capacity 16 M Bytes (up to 8,000,000 data points)

    Operating Parameters

    Wireless communication range Outdoor/line-of-sight: 2 km (ideal), 800 m (typical)
    Onboard antenna: 1 km (ideal), 400 (typical) Indoor/obstructions: 50 m (typical)
    Antenna Surface mount or external via U.FL connector
    Radio frequency (RF)
    transceiver carrier
    License-free 2.405 to 2.480 GHz (16 channels)
    RF transmit power User-set 0 dBm to 20 dBm. restricted regionally
    Power input range 3.3 V dc to 30 V dc
    Operating temperature -40 °C to +105 °C
    ESD 4 kV

    Physical Specifications

    Dimensions 41.3 mm  x  29 mm  x  5.9 mm
    Interface Solder or screw-down terminal available
    Weight 7 grams


    Compatible gateways All WSDA gateways
    Software SensorCloud®, SensorConnect, Windows 7, 8 & 10 compatible
    Software development kit
    Regulatory compliance FCC (USA), IC (Canada), CE (European Union), JET (Japan)
  • Parts

  • Dimensions