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Installing a Monnit CT Clamp

A Step by Step guide to installing your ALTA Wireless AC Current Meter to monitor your electricity usage

Claire Roos avatar
Written by Claire Roos
Updated over a year ago

Our Electricity Monitoring solution gives you real-time access to your consumption data. The installation is simple and gives you the ability to quickly spot trends in your energy usage and to identify inefficiencies.

Before installing your sensors please ensure that you have installed and powered on the gateway first. For a guide on the gateway install see here.

Step by Step Guide

Equipment Check

You must ensure that you have all the required equipment for a successful installation.

  1. Sensor

    1. Identify the antenna (top of sensor) and clamps (bottom of sensor).

    2. Ensure the sensor is for the correct number of phase (equal to the number of clamps).

    3. Ensure it is the correct amperage.

    4. Note the Sensor ID. This is located on the side of the device.

  2. Connectors

    1. Identify the connectors.

      Remember: These are only required if sensor and antenna need to be separated when there is no space for the antenna end within

      the containment of the live wire. In this case it has to be placed outside.

Identify and gain access to the live wire that is to be monitored

  1. Next you want to establish which direction the load is towards

  2. Establish if the clamp will have to be disconnected from the antenna end for the installation. This is the case when when there is no space for the antenna end within the containment of the live wire, and it has to be disconnected and placed outside. (Skip here for the section that covers installation in this case).

Install clamp (if the wire to the clamp does not need to be cut)

  1. Connect the Sensor end to the live wire.

    Remember: The clamp is polarised so it must be installed in the right direction. The arrow on the side of the clamp must point towards the load being measured.

  2. Attach aerial to the antenna end

  3. Secure the antenna nearby with two-sided sticky tape or screws.

    Remember: The Antenna should be parallel to the gateway antenna for maximum range.

Install clamp (if the wire to the clamp needs to be cut)

  1. Cut the wire between the sensor and sensor antenna.

  2. Locate drop-out, or create a hole large enough for the wire.

  3. Connect the Sensor end to the live wire.

    Remember: The clamp is polarised so it must be installed in the right direction. The arrow on the side of the clamp must point towards the load being measured.

  4. Re-connect wire

  5. Secure the antenna end securely somewhere. Two-sided sticky tape, or screws.

    Remember: The antenna should be parallel to the gateway antenna for maximum range.

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