Installation

Mounting the module

CMi4111 is mounted in either an L+G T230 or an L+G T330 meter.

  1. Grab the device by the outer edges.

  2. Gently press it into position in the module slot.

Activating the module

Upon delivery, CMi4111 is set to passive mode, which means no messages will be transmitted from the module. The module can be activated in one of the following ways:

Note

Before activating the module, and trying to join a LoRaWAN® network, make sure the LoRaWAN® network server of use is prepared with necessary security keys.

Via meter flow

When the meter detects a flow, it will send a trigger to the module and activate it. Note that activation needs an accumulated volume of 10 liters and the function needs to be activated in the meter’s factory settings.

Via meter push button

When the meter detects a flow, it will send a trigger to the module and activate it. Note that activation needs an accumulated volume of 10 liters and the function needs to be activated in the meter’s factory settings.

Via Elvaco OTC app

Tip

The module is mounted at the top of the meter. The NFC field is easiest accessible if placing your phone in the middle of the higher part of the front side.

Joining the LoRaWAN® network

When activated, the module will attempt to join the LoRaWAN® network. If the module fails to join the LoRaWAN® network it will perform retries until it succeeds. The time between each attempt will increase for every attempt until it’s performed once every day. A new join attempt cycle can be manually started anytime by deactivating and activating the module using the Elvaco OTC App.

When the module has joined the LoRaWAN® network, meter data will initially be transmitted from the module every minute (regardless of transmit interval settings) in order to set the right data rate. After three minutes of calibration, the module will start to deliver meter data using its configured settings. By using the Elvaco OTC App, you can easily verify that the module is successfully communicating with the meter (“Meter communication”) and is connected to the LoRaWAN® network (“Network joined”).

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