This application note describes how to calibrate the STEVAL-IPE007V1 single-phase energy meter.
This document provides a calibration procedure for the STEVAL-IPEO07V1, a single-phase power and energy meter with tamper detection based on the ST7FLite2x microcontroller. The goal is to minimize measurement errors and increase accuracy by calibrating the meter against a reference meter.
The guide outlines two methods for calibration: using firmware updates via a PC and using the Energy Meter GUI. It details the required hardware setup, including an AC source, phantom load, sensor, and error calculator. The text explains how to read voltage and current offsets, modify calibration constants in the EEPROM, and update the microcontroller firmware to correct measurement deviations.
| Meter constant | 3200 imp/kWh |
|---|---|
| Basic current | 10 A |
| Maximum current rating | 50 A |
| Operating voltage | 140 to 280 V |
The baud rate should be selected as 9600.
The basic current rating for the energy meter is 10 A.
The maximum current rating for the energy meter is 50 A.
The operating voltage range is 140 to 280 V.