Used by power distribution companies, voltage and energy optimisations companies, facilities management, electrical or site services and maintenance engineers to monitor voltage variations on site helping them to diagnose any voltage related issues, or to gather data perhaps to make representations to their power supplier. Voltage optimisation companies also use the product to monitor voltage levels pre and post optimisation. The EC-3V has an integral Phase Sequence/Rotation Checker.
Two sizes are available, the larger EC-3V and the smaller SL-3V, which is about a quarter of the size. The SL-3V has a reduced battery life of approximately 9 months, around 1/3 of the EC-3V (24 months). Note the EC-3V has native USB communications and has a phase sequence (rotation) checker as standard, the SL-3V has RS232 comms and no integral phase sequence checker.
Voltage Optimisation (Voltage Optimization).
The average voltage supply is often higher than the ideal operating voltage for most electrical equipment like lighting and motors. For example, a 230V linear appliance used on a 240V supply will take 4.3% more current and will consume almost 9% more electricity. Multiply that across all the appliances in your organisation and that soon adds up. Sites fitted with a voltage optimisation system often achieve reductions in the region of 10-20% for energy consumption, costs and carbon emissions! The first step in voltage optimisation is to monitor and know your present incoming voltage levels, the Electrocorder allows you to determine this. | 
