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
LogBox Connect Data Logger
Kenny Laidlaw
Mar 12,2018
The LogBox Connect are a range of small, compact data loggers with wireless connectivity options of more >
QI-POWER-300 Energy / Power Meter
  • QI-POWER-300 Energy / Power Meter


Quick Overview

QI-Power Energy/Power Meter suitable for single phase AC RMS/DC Current & Voltage. Current Range: up to 300A AC/400A DC. Voltage Range: up to 800vAC or 1000vDC. RS485 Modbus RTU output. DIP Switch and PC programming. Power Supply 9-30vDC. DIN Rail mounting, dimensions: 99.25 x 89.1 x 28.5mm.


The QI-POWER-485-300 is the 'High Current' version of the single phase power meter QI-POWER-485. The unit can monitor current levels up to 300A AC and 400A DC. The sensor is a network analysers capable of measuring the RMS AC, or DC, Current and Voltage levels of a connected circuit. The QI-Power units provide an RS485 Modbus RTU output for interfacing to your monitoring equipment. The unit is programmed using the Facile QI-Power-485 interface software, or directly via RS485 using the DIP Switches and cycling the power.

Facile QI-POWER-485 Interface SoftwareFacile QI-POWER-485 Software

The free interface program Facile QI-POWER-485 is the fastest way to configure the device. The software has only one configuration screen, shown on the right, which allows all the parameters to be configured. The changes made to the program act on the Modbus registers of the QI-POWER-485. In the event you need to restore the default configuration, just press the button FACTORY DEFAULT and the original settings will be restored.

Using a serial link RS485-USB (eg. USB-i485 RS485 to USB Converter) you can connect the QI-POWER-485 with the interface program FACILE QI-POWER-485. The software allows you to set the Modbus address, baudrate, delay, the TV and TA ratio, to modify a filter in order to have fastest responce time instead of a more stable measurement (filter range from 1-speed to 5-accuracy) and to measure frequency on current channel instead of voltage channel. The software is available to download free of charge.

A second way to programming the QI-POWER-485 is by using the Modbus Register Map directly. The register map is available on request.


QI-POWER-485-300 Drawings

QI-POWER-485 Circuit Diagram

QI-POWER-485-300 Network Analyser

Availability: Stock Item