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Hanwell RL4601 Energy Monitoring Transmitter

Hanwell RL4601 are used with CT clamps (also supplied by Fluidic) for monitoring energy use within the Hanwell EMS wireless system.  As with other transmitters in the Hanwell Pro range for EMS, the transmitters are simple AA 3.6V battery powered with battery life up to 2 years.  Associated CT clamps are self powered and split clamp design for ease of installation.  Signals can travel up to 3km in clear line of sight, Fluidic offer a wireless site survey to confirm suitability.  Standard ranges can be measured up to 120A (per phase).


Hanwell EMS is a comprehensive data collection tool.  The system is generally wireless and offers a cost effective solution for site wide monitoring of temperature, humidity, energy use, CO2 and a variety of other parameters.  The system can act stand-alone, or OPC integration allows use within your existing SCADA system.  Fluidic offer supply, install and ongoing maintenance (such as calibration) for the complete Hanwell EMS system.


Hanwell RL4601 Energy Transmitter specification

  • 3.6V AA battery powered (up to 2years battery life)
  • 3 channel current clamp inputs (can be used for single or 3ph supply)
  • Internal datalogger with 20,000 readings per channel on board in case of signal outage
  • ABS/PC construction, IP30 (transmitters to be installed in dry environment)
  • Environmental conditions -20…+65C
  • Accuracy within +/- 2% between 10-100% of range
  • Fluidic offer full install and maintenance solution along with site survey


Associated Hanwell CT Clamp options

  • Hanwell J091 split core, selectable 0-30A, 0-60A, 0-120A.  Max DIA cable 22mm.
  • Hanwell J135 split core.  5A, max DIA cable 10mm.
  • Hanwell J134 split core. 50A, max DIA cable 10mm.
  • Hanwell J139 split core. 100A, max DIA cable 10mm.


Fluidic are the authorized partner of the Hanwell for Scotland and the North of England. Our instrumentation engineers are product trained and able to help with instrument selection within the full Hanwell Pro wireless systems. Please call either office for more information (Glasgow 0141 641 5920 or Warrington 01925 572401).


  • Download Hanwell RL4601 Energy Transmitter Datasheet
  • Download Hanwell EMS Datasheet
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