• ST40
    Compact DIN Rail Mounted Energy & Power Quality Meter
    • A small DIN rail mounted revenue meter with power quality recording capabilities - record power quality waveform events at up to 512 samples per cycle
    • Highly accurate, meeting ANSI C12.20 0.2 Accuracy Class for energy
    • Extensive memory to store load profiles, system events, limits, and alarms
    • Small footprint for machine level monitoring, solar, wind, and other applications with limted installation space
    • Brings data to existing software or directly up to EnergyPQA.comTM for analysis and remote power monitoring
    • Compatible with MV90 and SCADA applications
    ST40 Compact DIN Rail Energy Meter with Power Quality
  • ST40
    Power Quality Analysis
    • Up to 512 samples/cycle with progammable triggers
    • Harmonic Magnitude recording to the 40th order
    • Power Factor Logging
    • CBEMA and SEMI F-47 support
    Obtain PQ Recording Data for Small, More Tightly Enclosed, Equipment
    Waveform Recording
    Power Quality Analysis
    ST40 Power Quality Analysis
  • ST40
    Extensive Data Logging Capability (V2 & Higher)
    • At V2, provide data logging capability for historical trends, limit alarms, and sequence of events
    • Real time clock allows time stamping of all data in the instrument when log events are created
    • Up to 3 historical trending logs and up to 1,000 days of data logging
    Historical Trending
    ST40 Extensive data logging capability
    • At V2, provide data logging capability for historical trends, limit alarms, and sequence of events
    • Real time clock allows time stamping of all data in the instrument when log events are created
    • Up to 3 historical trending logs and up to 1,000 days of data logging
  • ST40
    Communication Capability
    • RS485 option communicates Modbus RTU and DNP3 protocols
    • Communicates to EnergyPQA.comTM system, providing energy analytics and predictions to reduce costs
    • Optional 10/100BaseT Ethernet Modbus
    • Front read USB port for local downloading of data
    Communicate Modbus and DNP3 protocols and provide load priorities to manage electrical usage.
    ST40 Communication capability
    10/100BaseT
    Ethernet
    Or
    RS485 Serial
    Micro USB Port
  • ST40
    Installation
    • Compact DIN rail mounted footprint
    • Under 5 inches long and wide
    • 300 V power supply eliminates need for a control power transformer
    • Ideal for machine level monitoring, solar, wind, and other applications with limited installation space
    A compact DIN rail energy meter that records power quality and can be mounted in a control cabinet
    ST40 Installation
    Front Dimensions
    Side Dimensions
HomeProductsST40 Compact DIN Rail Energy Meter with Power Quality

ST40 Compact DIN Rail Energy Meter with Power Quality

The ST40 DIN rail energy meter is one of the smallest energy and power quality meters in the world. The meter installs on a DIN rail in a small footprint application where space is at a premium. The ST40 DIN rail energy meter provides 0.2% class energy accuracy and offers advanced power quality features, including the ability to record PQ waveform events at up to 512 samples per cycle, and Harmonic readings to the 40th order.

Advanced Revenue Metering

The ST40 DIN rail energy meter’s voltage measurement range is up to 576 V L-N (300 V L-N per UL); current inputs can be ordered for industry standard 5 A and 1 A current transformers. It has a separate power input connection and utilizes an extended range power supply with voltage up to 300 V L-N, eliminating the need for a separate control power transformer. The ST40 DIN rail energy meter is ideal for machine level monitoring, solar, wind, and other applications with limited installation space.

  • ANSI C12.20 0.2 Accuracy Class
  • Traceable Watt-hour Test Pulse
  • Utility Block and Rolling Average Demand
  • Historical Load Profiling
  • Transformer and Line Loss Compensation
  • CT/PT Compensation
  • Line Frequency Time Sync
  • Lockable Voltage and Current Inputs

Extensive Data Logging Capability

Additionally, the ST40 DIN rail energy meter has extensive memory to store load profiles, system events, limits, and alarms. It has either RS485 or Ethernet communication that support Modbus and DNP3 protocols, making it easy to bring data back to existing software or directly to EIG’s EnergyPQA.com™ Cloud Solution for cost management energy analysis, AI based demand and usage predictions and deep insights into power quality analytics and predictions. The meter is also compatible with MV90 and SCADA applications.

Power Quality Measurement and Analysis

The ST40 DIN rail energy meter records up to 512 samples per cycle for a voltage sag or swell, or a current fault event. The unit provides the pre and post-event recording capability shown in the table at the bottom of this page. Waveform records are programmable to the desired sampling rate.

The meter’s advanced DSP design allows power quality triggers to be based on a 1 cycle updated RMS. Up to 170 events can be stored until the memory fills. The meter stores waveform data in a first-in/first-out circular buffer to ensure data is always recording.

The unit uniquely offers a waveform scope to view the real time waveform for voltage and current. The waveform scope allows the meter to be used as a basic oscilloscope to view the electrical sine waves.

https://www.electroind.com/eig-releases-st40-highly-compact-energy-and-power-quality-meter/
https://www.electroind.com/overview-of-the-brand-new-st40-energy-and-power-quality-meter-webinar/

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