Product focus: Easywire Multifunction Metering Systems from Rayleigh Instruments

• Substantial labour savings.
• Elimination of wiring errors.
• Increased safety. Internal circuitry limits high voltages if current transformer is disconnected under load.
• No need for current transformer shorting terminals.
• Proven design - successfully in service.
• Simple plug-in connection for both current and voltage inputs/outputs.
• Reduced testing time.
• Choice of 5 three phase current transformer frame sizes.
• Choice of 2-meter designs.
• Less qualified installers required.
• Fully EMC tested and CE certified.
• Supplied with or without cables to suit your requirements.
• MID certification

The Easywire metering system has numerous advantages over the traditional metering solutions. Primarily we use Easywire because it offers total flexibility of installation, massive labour savings against traditional methods and the increased safety features . The metering devices have an excellent backlit display that can be viewed from various angles and the easy plug and play system makes it perfect for on-site maintenance or the addition of extra devices.

First and foremost, would be the increased safety using the Easywire system. The fact that the shunt is now located within the current transformer rather than the meter, means that the possibility of high voltages during open circuit conditions is no longer a factor, due to the secondaries always being loaded. As well as this you have components built in to provide you with complete redundancy should a resistor fail. This offers complete ‘peace of mind’ to the engineers installing or maintaining these products. Another added advantage of this is that we no longer require current transformer shorting links.

Again, there are several reasons why we choose the Easywire system. Apart from the obvious safety features outlined above, the competitions system uses current transformers that have either a 5 Amp or a 1 Amp secondary voltage whereas the Easywire system has a 330mV secondary giving guaranteed safety to the installer. The quality of LCD display and the ability to view it clearly from all angles and the built in pulse/RS485 Modbus communications, not to mention the range of easily obtained accessories make product selection simple and an obvious choice.