Overview

Although the eGauge uses power factor to calculate real power, the power factor values are not stored in the database by default. Follow the steps in this guide to record power factor data for an existing power register.

Prerequisites

To add registers to an existing configuration you will need valid login credentials to the meter and access to the interface.

This article assumes that at least one power register has previously been configured on the meter.  To get started with basic configuration please see: basic config steps

Instructions

Step 1: From the main menu, navigate to Setup → Other Settings, then choose Installation to the left.

Step 2: Locate the existing power register you want to record power factor data for and click on the option button located after the register type dropdown. 

Step 3: From the list, check ‘= Record the net of positive and negative power’ and ‘* Record apparent power’. Both of these values will be needed to create the register that will calculate power factor. Click OK.

You should now see both the = and * symbols on the option button showing that you are recording the net and apparent power values for the register.

Step 4: Next, click the Add Register button to create a new register to record power factor data. Give it a descriptive name, and change the register type from P to = (formula register) and set the unit to Number with 3 decimals as shown in the example below. 

Step 5: Next, enter the formula to calculate power factor in the register formula field.  For our example this will be: abs($"Grid"/$"Grid*") 

If your Power register has a different name, substitute that name where Grid exists in the example above.