Installation

Mounting the module

Mount CMi4140 in either Kamstrup MULTICAL® 403, MULTICAL® 603 or MULTICAL® 803 heat/cooling meter.

  1. Grab the device by the outer edges.

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

  3. Connect the power connector to the meter power supply.

Connection of the antenna

CMi4140 is available in two different versions, with an internal PCB antenna CMi410Int or with an external antenna (CMi4140Ext). The internal antenna is already connected in the CMi4140Int.

External antenna
  1. Connect an external antenna (released by the supplier) with MCX connector to the module in the meter.

  2. Route the antenna cable.

  3. Push the connector gently into the socket on the module.

Caution

If using an external antenna, make sure to mount it at least 0.5 meters away from the meter in order not to cause interference.

Activating the module

Upon delivery, the module 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:

Via the meter front buttons
  • On MULTICAL® 403, press and hold both buttons on the front of the meter until “CALL” is displayed.

  • On MULTICAL® 603 and MULTICAL® 803, press down the two arrow buttons on the front of the meter until “CALL” is displayed.

Via Elvaco OTC app

Tip

  • If the module is mounted inside a 403, the NFC field is easiest accessible if placing your phone in the middle of the higher part of the back.

  • Kamstrup 603 has two module slots. If mounted in the left module slot, the NFC field is easiest accessible if placing your phone in the middle of the higher part of the back. If the module is mounted in the right module, place your phone to the right of the higher part of the back.

  • If the module is mounted in an 803, the meter needs to be open to access the NFC field. Place your phone on the NFC mark on the module.

Reading the module status via meter display

In addition to the Elvaco OTC App, the current status of the module can be read via the meter display.

To retrieve the status of the module via the meter display, enter the tech loop and of the meter display and request the status information of the module. For more detailed information, refer to the Kamstrup MULTICAL Technical description.

The following table provides a description of how the current status of module is read off the meter’s display.

As an example, if the display shows “5311111”, that means that the module has been activated and has successfully joined the LoRaWAN network.

Table 153. Module status indication on meter display

Character, MSB -> lsb

Status

1-2

53 = Module identification number (CMi4140)

3

1 = All following characters are set to “1”

0 = One or more of the following characters are set to “0”

4

1 = Meter has granted active mode for the module

0 = Meter has requested the module to be idle

5

1 = Module has joined the LoRaWAN network

0 = module has not joined the LoRaWAN network

6

1 = Module SuperCap has been charged

0 = Module SuperCap is charging

7

1 = Module is active

0 = Module is inactive


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