Installation
Software vs. Hardware
Strictly speaking, MonELOG began as a software project with no specific hardware platform in mind. That objective was soon supplanted by an open hardware design based on the ESP8266. Typical MonELOG installations use a commercially manufactured unit that is certified to UL and CE safety standards and complies with FCC requirements.
The MonELOG firmware is factory installed and can be automatically and securely updated over WiFi. This section of the documentation deals with the physical installation of the commercial MonELOG unit with factory installed firmware.
Components
MonELOG has 15 input channels. One is reserved for monitoring voltage, and the remaining 14 can be used to monitor power or voltage. The minimum requirements for operation are:
MonELOG
USB power supply
AC voltage reference transformer
Current Transformer (one or more)
Voltage and Frequency
MonELOG can work with all common line voltages at 50Hz/60Hz. Additionally, it can use multiple voltage references for polyphase measurement. The most common environments are 120/240V 60Hz and 230V 50Hz. The USB power supply and AC transformer must be appropriate for the power system.
Connections
Setup is simple:
Connect the USB power supply to the
5V DC USBConnect the AC transformer to the
9V AC REFPlug the power supply and AC transformer into a wall socket
That’s it.
Next step: connecting to WiFi