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DigiRail-2A, DigiRail-2R and DigiRail-4C

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  • DigiRail-2A, DigiRail-2R and DigiRail-4C
  • DigiRail VA AC Supply Analysis

DigiRail Signal Conditioning and Digital Transmitter

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Quick Overview

The DigiRail line of smart transmitters with Modbus RTU communication interface provide a simple way for integrating analog or digital signals to supervisory systems. Additionally the new DigiRail VA allows you to monitor your single phase AC supply for power analysis that can directly be tied into your monitoring system with minimal work via MODBUS. All the input signals on the DigiRail line are isolated from power thus protecting the electrical instruments by eliminating ground loop effects.

The DigiRail line offer a simple and cost effective way of expanding yoru current MODBUS based monitoring system.  Featuring a 2-wire MODBUS RTU interface and easy to use Windows PC software, configuration parameters can be easily programmed such as address and baud rate, 1,200 to 115,200bps.  Front LED indicators allow the operator to see a visual notification of the units status.

All units mount on standard 35mm DIN rail.

Product Details - DigiRail 2A

  • Analog inputs: programmable for thermocouples (J, K, T, E, N, R, S, B), Pt100, mV, V, mA
  • Cold junction compensation for thermocouples and compensation for Pt100 3-wire cables
  • Open loop detection for thermocouples, Pt100 and mV
  • Sampling rate for 1 analog input: 10Hz for mV, V and mA. 5 Hz for t thermocouples and Pt100
  • Analog input resolution: 17 bits
  • Accuracy (at 25 °C): Pt100, mV, V and mA: ±0.15 % of full scale. Thermocouples: ±0.25 % of full scale
  • Temperature effect: 0.003 % of full scale/°C
  • Cold junction compensation for thermocouples: 1 °C at 25 °C. ±0.05 °C / °C
  • Isolation: 1000 Vac from inputs (analog or digital) and power or communication
Product Details - Digirail - 4C
  • 4 x Digital Inputs
  • 4 to 35V DC to Activate
Product Details - DigiRail 2R
  • 2 x Relay Outputs
  • Rated at 8 A / 250 Vac SPDT relay, resistive load
Product Details - DigiRail VA
  • Measures and calculates:
    • Voltage: 0 to 300 Vac (True-RMS)
    • Current: 0 to 5 Aac (True-RMS) - It does allow use of CTs for higher current applications
    • Active Power
    • Reactive power
    • Apparent power
    • Frequency: 45 to 65 Hz
    • Power Factor: 0.00 to 1.00
  • Analog retransmission (user selectable 4-20mA and/or 0-10V)
  • Any one of the values can be re-scaled and retransmitted using the on-board analog outputs
  • Full 2500 Vrms isolation between the high voltage/current inputs and the low voltage signals
  • Accuracy of Voltage, Current & Power readings over RS485 is +/- 0.25% and +/- 0.5% over the Analog Retransmission
  • Accuracy of the Frequency and Power Factor readings over RS485 is +/- 0.5% and +/- 1% over the Analog Retransmission
  • Wide Ranging 10-40Vdc power supply requiring just 2.5 W. It is suitable for most standard low voltage industrial supplies.

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