Omni Instruments
contact icon+44 (0) 845 9000 601
+44 (0) 1382 443000

Contact our technical sales team now to discuss your requirements

help icon
MY BASKET basket arrow


My Cart

You have no items in your shopping cart.

Click basket to edit.


Latest added news blog
MSR175 Shock Transportation Data Logger
Kenny Laidlaw
Oct 01,2018
The MSR175 shock transportation data logger is the newest miniature logger from MSR.  The MSR175 more >
HRDX Charge Controller

HRDX Charge Controller

Quick Overview

HRDX Charge Controller incorporates Pulse Width Modulation (PWM) technology to regulate battery voltage preventing overcharge in the same way as the HRS type regulators with additional features for battery management, monitoring and ease of installation. This generation of voltage regulation includes speed limiting to the turbine when the battery is full, which increases the lifetime of the windcharger. For use with Rutland 503, 504, 913 & FM910-3 Furlmatic Windchargers.
View Options



  • The PWM electronic charge regulator tapers charge to the battery by gradually limiting windcharger current to avoid battery overcharge.
    • When regulating the turbine speed is gradually reduced finally to an idle
    • As fully charged batteries are more likely to occur in high winds this slow mode of operation is safer and reduces wear
  • Built-in charge splitter enabling you to charge 2 separate sets of batteries, typically the services and engine batteries
  • 5 Position switch for LCD allows you to see a display of: Windcharger current, Solar panel current, Net charge current to battery, Battery Voltage 1 & Battery Voltage 2.
  • Charge source shutdown switch
    • When switched this will bring the Windcharger to an idle running and stop the charge current from the solar panel, isolating the batteries from these charge sources
    • Note that wherever possible this should be activated in low wind conditions or by slowing the turbine to an idle first.
  • A solar panel with a maximum rating up to 100 Watts may be connected directly into the built in terminal.  This connects the windcharger and solar panel in parallel 
    • A built in blocking diode prevents the wind & solar chargers from drawing current from each other
  • Access panel to terminals for any one Rutland Windcharger 913, 910-3, 504 or 503 model, solar panel, battery bank 1 and battery bank 2.
  • Built-in blocking diode protects the HRDX Controller from other charge sources to the same batteries, eg engine charging
  • LED indicates battery full status.
  • 12 Volt System regulating cut-in voltage 13.8 Volt, maximum charge voltage 14.4 Volt (+/- 2 %)
  • 24 Volt System regulating cut-in voltage 27.6 Volt, maximum charge voltage 28.8 Volt (+/- 2 %)
  • Product Dimensions: 160×137 x75mm   Net Weight: 0.85 Kg
  • Carton Dimensions: 215×170x105mm  Packed Weight: 0.97 Kg

Regulator Description:

Rutland 504 & 503 Windchargers CA-11/42 N/A
Rutland 913 Windcharger CA-11/42 CA-11/43
Rutland Furlmatic 910-3 Windcharger CA-11/42 CA-11/43

Technical Features

HRDX Diagram

  • The PWM electronic charge regulator tapers charge to the battery to limit current and avoid battery overcharge. When regulating the Windcharger speed is reduced.
  • Standard regulator cut in level is 13.8 Volt and fully on at 14.4 Volt for 12 Volt systems   (24 Volt= 27.6 Volt - 28.8 Volt).
  • Built in charge splitter for 2 isolated battery banks.
  • 5 position switch for LCD digital display of:
    • Windcharger current
    • Solar current
    • Net charge current
    • Battery 1 voltage
    • Battery 2 voltage
  • Charge source shutdown switch.
  • Wall mounted.
  • Designed for use with Rutland 504, 503, 913 or FM910-3 plus up to 100w of solar panels.

Availability: Stock Item


Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

HRDX Controller 24V (Suitable for Rutland 913 or FM910 plus up to 100W of solar panels.)
or call us for a quote
HRDX Controller 12V (Suitable for Rutland 504, 913 or FM910 plus up to 100W of solar panels.)
or call us for a quote