> For the complete documentation index, see [llms.txt](https://docs.output.industries/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.output.industries/recommended-hardware/energy-monitors/3-phase-less-than-100a.md).

# 3 Phase < 100A

<figure><img src="/files/0zeY8jB95Ff7SjLtpQ0a" alt=""><figcaption></figcaption></figure>

### Device Configuration

1. Hold down 'E' button to enter configuration mode. Pass code is 1000 by default.

<figure><img src="/files/kVAnXqGiAKjwDfEEbH8Z" alt=""><figcaption></figcaption></figure>

2. Set the address of the device. Must be less than 16 and unique compared to other devices connected to the same Opta DAU. If there is only 1 energy meter connected to an Arduino, it can be left as 001. If  a second is connected you will need to go into the menu (in the picture above) and set it to 002.

<figure><img src="/files/lFVEzBssctFAqRS1Xfiy" alt=""><figcaption></figcaption></figure>

3. Set Baud Rate to 19.2k

<figure><img src="/files/TPsGIholXyuoBB3w0Rsr" alt=""><figcaption></figcaption></figure>

### Documentation

User Manual:&#x20;

{% file src="/files/nCgcrhtAXGWi42Ohgdw9" %}

Datasheet:&#x20;

{% file src="/files/XRFN1ltShsGOtCAWEqMV" %}

Purchase link:

{% embed url="<https://uk.rs-online.com/web/p/energy-meters/2369297?gb=s&searchId=4ed501f2-f33b-4f2d-8706-3b7da2029cfe>" %}

Example Installs:

<figure><img src="/files/Tuxd3KWBaEBYTYwHb0uI" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/lO4lDQ7uCRBVv58dL2h0" alt=""><figcaption></figcaption></figure>


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