Wattics Portable Unit Start Guide

This Start Guide explains how to set up and use your Wattics portable units for energy audits, ISO50001 certification, and other energy efficiency projects.

The steps below should be followed for 3-phase 4-wire (three phases with a neutral) Wye/Star electrical systems typical to European member states, UAE, Malaysia, China and more. Separate installations steps should be requested for other types of electrical systems.


STEP 1 – Make yourself familiar with the portable unit



All the portable unit components are pre-wired and ready to go:


1 IP66 NEMA4X Enclosure
2 WattREV-6 18-circuit three-phase meter
3 333mV 5-meter lead CTs / Rogowski Coils
4 Octopus Gateway Unit
5 WattROUTER 3G Router
6 24VDC power supply
7 WattCROCs crocodile clamps
8 Cat5 cable
9 Main terminal block connector
10 Wiring diagram


STEP 2 – Set up the WattROUTER for internet access

Portable units are fully portable when they can be moved around with nointervention from the customer IT department and electricians. For that, a portable unit must have its own Internet Access point, which we provide with the built-in WattROUTER.

The Wattics WattROUTER is a DIN-rail mounted GPRS/3G industrial router suitable for a variety of industrial deployments. The WattROUTER requires a sim card that you must source from one of the local providers (e.g. Vodafone in Ireland). You need set up a broadband data contract with at least 5Go data per month for real-time data upload.

With the sim card in your hands, the WattROUTER must be configured to enable Internet access. This procedure must be conducted only once, and we recommend to take care of this before going to the customer. After that, the WattROUTER will automatically connect to the Internet when powered up, and will provide a live Internet point to your portable unit wherever you deploy it.

Wattics WattROUTER Setup Instructions

Follow instructions to configure your portable unit’s Internet point

NOTE: For simplicity purposes, we recommend that you supply power to the portable unit from a wall socket. For that, you will need to temporarily disconnect the crocodile clamps from the terminal block and connect the live, neutral and earth wires of a power lead and plug that lead to the wall socket. That way you can work on the portable unit configuration without the need of a circuit breaker and the crocodile clamps.


With Internet access configured, you can now bring your portable unit to your customer site.


STEP 3 – Prepare your meter installation report


Before the actual electrical installation starts, it is good practice to plan and document how you will deploy your portable unit, i.e. which current transformers (CTs) or Rogowski coils (RCs) will be used for which circuit, and how they will be wired back to the Portable unit’s terminal block’s connector.


A Portable Unit Installation Report template is available for download HERE for that purpose. We recommend that you download it and fill it in following the steps below.


  • The first step is to decide which circuits you want to monitor with your portable unit and register them within the Installation Report. For single-phase circuits, you must identify if their breaker/MCB is supplied from L1, L2 or L3 phase lines. This is very important as it will dictate which terminal block input you can connect the CT lead to.

    Example of information you must collect for the circuits you are going to monitor

  • The second step is to choose CTs/RCs with the most suitable primary rating for the circuit being monitored (e.g. a CT with a 300A primary rating for a circuit fed through a 250A circuit breaker).

    Example of CTs’ that you may use to monitor the circuits
  • You should then label the CTs/RCs’ heads to facilitate deployment (e.g. a CT head labeled 4-3 will be clamped to Phase Line 3 of your circuit number 4). The labeling of the CT leads is also a useful step to avoid getting the leads mixed when pulling them through the distribution board back to the portable unit.

    Example of labels for your CTs/RCs’ heads and leads
  • Finally, you must decide where you will connect the CT/RC leads back at the portable unit’s terminal block.

    Each CT/RC lead comes with two wires, so the terminal block provides a total of 36 inputs (I37 to I72) to connect up to 18 CTs/RCs.


    Connecting the CT/RC leads back at the portable unit’s terminal block must be done carefully for correct measurements. The following illustrates the options you have depending on whether you monitor three-phase circuits only, single-phase circuits only or a mix of both.
    Three-phase circuits only

    Circuit 1 Circuit 2 Circuit 3 Circuit 4 Circuit 5 Circuit 6
    CT Line 1 I37 I38 I39 I40 I41 I42 I55 I56 I57 I58 I59 I60
    CT Line 2 I43 I44 I45 I46 I47 I48 I61 I62 I63 I64 I65 I66
    CT Line 3 I49 I50 I51 I52 I53 I54 I67 I68 I69 I70 I71 I72
    CT wire colour W/R B W/R B W/R B W/R B W/R B W/R B

    (W/R=White/Red and B=Black)

    For example, this table tell us that the two lead wires of the CT labeled 4-3 will be clamped to the meter input terminals I67 & I68.

    Single-phase circuits only

    CTs on Phase line 1 CTs on Phase line 2 CTs on Phase line 3
    I37 I38 I43 I44 I49 I50
    I39 I40 I45 I46 I51 I52
    I41 I42 I47 I48 I53 I54
    I55 I56 I61 I62 I67 I68
    I57 I58 I63 I64 I69 I70
    I59 I60 I65 I66 I71 I72
    W/R B W/R B W/R B

    (W/R=White/Red and B=Black)

    For example, this table tell us that the two lead wires of a CT/RC monitoring a circuit supplied from Phase line 3 can be clamped to six different sets of inputs such as I49 & I50.

    Mix of single-phase and three-phase circuits

    In this setup you must first identify where you will connect the CTs/RCs monitoring the 3-phase circuits, and then map the CTs/RCs for single-phase circuits to the remaining inputs available using the tables above.


You can now finalise your portable unit’s Installation Report adding the terminal block connector input you plan to use for each set of CTs.



You are now ready to start the electrical installation using your Installation Report.


STEP 4 – Install your portable unit

At this stage you are on site, with your portable unit located in a safe, stable and secure location next to the electrical board you want to monitor, you have set up Internet access for your WattROUTER and you know how you are going to deploy your metering equipment.

Three steps must be conducted in order to complete the electrical installation:

      1 – Wire the Current Transformers (CTs) / Rogowski coils (RCs) leads to the portable unit’s terminal block and clamp the CTs/RCs to your circuits
      2 – Supply power to the portable unit
      3 – Configure the WattREV-6 meter according to the CTs/RCs deployed
      4 – Configure the Octopus Gateway unit to read data from the WattREV-6 and push it to Wattics


1 – Wire the CTs/RCs leads back to the main terminal block connector and then clamp the CTs/RCs to the circuits:

  • Pick your first CT/RC and check its label
  • Position the CT/RC within the cable compartment next to the correct circuit phase line
  • Pull the CT/RC lead from the circuit compartment back to the portable unit through glands, rail, trunken, kopex, etc
  • Wire the CT/RC lead to the correct portable unit terminal inputs according to your Installation Report
  • Clamp the CT/RC to the circuit’s phase line
  • Repeat that process for all CTs/RCs


2 – Supply 3-phase 4-wire power to the portable unit

You must clamp the 6 crocodile clamps to an existing 3-phase 4-wire supply. This will:

a. Supply 1-phase AC power to the meter via the terminal block’s L and N terminals
b. Supply 1-phase DC power to the Octopus Gateway and WattRouter
c. Supply 3-phase voltage reference to the WattREV-6 meter via the meter’s V1, V2, V3 and Vn terminals



a. The WattREV-6 meter and WattROUTER can draw up to 6 amperes, so you need to attach the crocodile clamps to a 3-phase breaker of at least 6A.
b. The breaker used must be fed from the same transformer as the circuits being monitored


3 – Configure your WattREV-6 meter for the CTs/RCs deployed

Because each installation will require you to use CTs/RCs with different primary AMP ratings, you may connect different CTs/RCs to the terminal block inputs each time, which requires meter reconfiguration after each deployment.

You need to configure the WattREV-6 meter to set the AMP size of the CTs/RCs that have been connected to each terminal block terminal, so that power measurements are computed correctly. This is done via the WattREV-6 display through the CT TYPE menu:


Please use the table below to configure the CT TYPE correctly. The CT TYPE allows you to configure the 18 x channels of the WattREV-6, and the table below maps the terminal block inputs to these channels. For example, if you have connected a 300A CT to the terminal block inputs I39/I40 then you need to configure the CT AMP size to 300 for the meter channels CH3.

Terminal block inputs WattREV-6 channel
I37 I38 CH1
I39 I40 CH2
I41 I42 CH3
I43 I44 CH4
I45 I46 CH5
I47 I48 CH6
I49 I50 CH7
I51 I52 CH8
I53 I54 CH9
I55 I56 CH10
I57 I58 CH11
I59 I60 CH12
I61 I62 CH13
I63 I64 CH14
I65 I66 CH15
I67 I68 CH16
I69 I70 CH17
I71 I72 CH18

(W/R=White/Red and B=Black)


4 – Configure your Octopus Gateway to read data from the WattREV-6 meter and push it to Wattics

Your Octopus Gateway unit must be configured to read measurements from the WattREV-6 meter for data backup and data push to Wattics through the WattROUTER. As such, the Octopus Gateway must be connected to the WattROUTER via cat5 and to the WattROUTER via RS485 (see RS485 cable connected to the terminal block connector below).


Detailed configuration steps for the Octopus are available here. The following describes what needs to be done when using the portable unit.


4.1 Connect the Octopus to your computer
You must connect your Windows computer (running the Octopus Software Tool) to the same network as the Octopus. For that you must use a cat5 cable and connect your laptop to the 2nd Ethernet port on the WattROUTER.


4.2 Download the Octopus Software Tool

Request the Octopus Software Tool Download Link

4.3 Configure your deployment setup
Launch your Octopus Software Tool and create a new Branch, using the “+” button.


Fill the “Branch Name” field with a short name for your project, and insert the serial number of your Octopus Gateway unit.


Select the correct timezone in the Timezone dropdown menu. If you cannot find your city select the closest city to your site location which is in the same timezone.


Click on Network Configuration to enable Internet access for your Octopus. You need to enable DHCP and leave the other options unticked, this will allow the Octopus to automatically get Internet access from the WattROUTER.


You must click OK to create the Branch.


You must now set up the Wattics URL where data collected will be sent to. Navigate to Output>Services from the top menu, and do the following:

  • Enable Service 1
  • Set Wattics as Service Name
  • Enter octopus.wattics.com as Service Host Address
  • Set 4401 as Port. Enter octopus.wattics.com as Service Host Address (IMPORTANT: When using GPRS Sim cards or when your firewall does not support the use of URLs, you must enter as Service Host Address.)
  • Click OK.


Once back to the Octopus Software Tool landing page, you can select your Branch and click the “Add” button on the right side to register the first circuit monitored by the portable unit.


You must find to AcuREV 20XX in the drop-down menu, and select the entry that corresponds to the wiring of your first circuit. You can look at your Installation Report to get that information.


For instance, if your first circuit is a three-phase circuit with CTs connected to the terminal block inputs I37/38, I43/44, I49/50, which correspond to channels CH1, CH4 and CH7, then the entry labeled CH1-4-7 3-PHASE should be selected and the button Add clicked.


At the next screen, you must enter a unique name identifier for the circuit and leave the other fields unchanged.


Here we ask that you use the following naming convention for choosing the unique name identifier:

OctopusID-DDMMYY-circuitnumber nameofcircuit

(for example 230007E7-010416-1 DBM for the DBM circuit number 1 configured on 01/04/16 via the Octopus ID 230007E7)

Make sure to insert a space between OctopusID-DDMMYY-counter and nameofdevice

Write down this unique name identifier in your Installation Form, you can then click OK.


The next screen shows you all the parameters available for that Modbus device. Do not change anything and click OK to save your configuration.


The circuit now appears in the list of devices registered within your branch.


You can now add more circuits using information from your Installation Report. Don’t forget to write all the unique name identifiers in your Installation Form:


Once you have all your circuits created, you must deploy your configuration onto the Octopus Gateway. Select your branch and click on the Deploy button.


On the next screen, leave the default settings and click on Deploy.


Your Octopus Gateway is now configured for data collection from the WattREV-6 meter. We recommend that you save your project should you need to modify the configuration as a later stage. You will then be able to open an existing project and make further modifications.


STEP 5 – Submit your installation report

Submit your Installation Report to Wattics via:

Wattics Installation Report Submission Form


Wattics will use your Installation Report to double check that data is being received from your portable unit and correctly showing in your dashboard. You will then receive access to your Wattics dashboard, and from then on you will be able to log in to your Wattics Dashboard at http://dash.wattics.com and get started!


Please contact us at support@wattics.com if you have any question regarding the set up of your portable units.

Anthony Schoofs

Chief Technical Officer at Wattics
Anthony drives Wattics' innovation on energy efficiency for industrial and grid environments. Anthony is also behind WSNbuzz.com, a blog covering technology advances within the smart grid and IoT markets, and was listed in 2011 amongst the top 100 IoT thinkers. Anthony was recently awarded the Globe Sustainability Research Award for his contribution to advancing knowledge on sustainability.