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Kamstrup Module

smart-me module for the customer interface of the Kamstrup Omnipower meter.

The smart-me Kamstrup Module brings electricity meters into the cloud. Your customers receive accurate analyses, visualizations and precise monitoring of their own energy consumption. No additional hardware is required. The smart-me Kamstrup Module uses the existing WiFi network and connects directly to the smart-me Cloud.

Discontinuation notice sent in Switzerland on 08.08.2023 (partner network).

Sales in Switzerland will be discontinued as of 31.12.2023; support and cloud support remain guaranteed.

Sales outside Switzerland were discontinued on 1.1.2023; support and cloud support remain guaranteed.

Kamstrup Module – Figure 1

Kamstrup Module LED sequences with error descriptions​

Most sources of error when installing a Kamstrup Module can be identified using the LED sequence:

Chapters

00:06 LEDs do not light up

00:18 WiFi is not created

00:59 LED flashing rapidly

01:14 LED running light

Features​

  • Various charts and analyses

  • Online firmware update

  • Integrated data logger for one month

  • Can be used as a sensor to control devices

  • Encrypted WiFi connection directly to the smart-me Cloud

  • Real-time visualization of power, meter reading, voltage and current in the app and on the web. Without a Pro license, the reading interval is limited to 60 seconds.

  • Comprehensive energy management: automatic billing, control, optimization and alarms

  • Easy installation with the smart-me app for Android and iOS

  • Modbus-TCP from firmware version 8.0 (Note: without a continuous internet connection, the module cannot provide stable Modbus communication either)

How can I set the correction factor in the cloud?​

To set the correction factor of a module or meter, proceed as follows:

  1. Log in to the smart-me portal

  2. Click on Configure (konfigurieren)

  3. Click on Meter & Folder Configuration (Zähler/Ordner-Konfiguration)

  4. Select the relevant meter

  5. Click on Edit node (Knoten editieren) (green button at the top)

  6. Enter the correction value under Value correction (Wert Korrektur). (Caution: only under Value correction (Wert Korrektur), not under Parent folder value correction (Überordner Wert Korrektur))

  7. Click on Save (Speichern).

Kamstrup Module decryption​

Video tutorial

  1. Click the gear icon (Settings (Einstellungen)) at the top right

  2. Edit (Editieren)

  3. Enter the meter key

Caution: The Kamstrup Module needs the meter's encryption PIN to be able to read the data. Only the energy supplier has this PIN.

How is the correction factor calculated?​

  1. Caution: This text does not refer to the transformer ratio of the Telstar CT, but to the correction factor in the meter/folder configuration. The correction factor is mainly required when using Kamstrup meters in combination with current transformers.

  2. Example with a 600:5 current transformer: If a current transformer with a ratio of 600:5 is used, the value must be adjusted by a factor of 600 : 5 = 120. The correction factor must be entered as a percentage in the smart-me Cloud. This results in a correction factor of 120 * 100 % = 12'000 %

  3. Example with a 600:5 current transformer and a Kamstrup meter preset to 100:5: Some Kamstrup meters have a preset transformer ratio of 100:5. If a current transformer with a ratio of 600:5 is connected to this meter, the correction factor is calculated as follows: Correction factor of the Kamstrup meter: 100 : 5 = 20 Correction factor for the current transformer: 600 : 5 = 120 Total correction factor: 120 / 20 = 6 Total correction factor as a percentage: 6 * 100 % = 600 % In this case, a correction factor of 600 % would have to be set in the smart-me portal.

How often is data transmitted​

This can be set manually for each device.

  • The interval can be reduced to as little as 1 second.

This can be set as follows

  • Log in

  • Select the meter

  • Gear icon at the top right

  • General settings (Allgemeine Einstellungen)

  • Set the upload interval (Upload-Intervall) (<60 seconds only possible with smart-me Professional)

  • Save settings (Einstellungen speichern)

Meter offline​

  • Serial number starts with 92*: Kamstrup

General information can be found under Meter offline.

Meter-specific information can be found here.

Restarting the meter​

  • This is for information only, on how it is done.

  • Procedure: Remove the module from the meter. Wait until no LED is lit anymore. Slide the module back into the meter.

How do I recognize the reception status of a meter​

  • Connected to WiFi: orange LED on the left and green LED on the right are permanently lit.

  • Cannot connect to WiFi: to be defined

  • Meter creates a local WiFi: orange LED on the left is permanently lit and. Red LED in the middle and green LED on the right light up alternately at 0.5-second intervals.

Check on arrival​

The following points can be checked on arrival. If something has already been done to the meter, it is important that nothing is done to the meter for at least 5 minutes. It is also possible to ask the customer on site for a video of the meter (30 seconds) to better assess the situation.

Changing the upload interval​

  • Log in to the smart-me portal

  • Select the meter

  • Select the gear icon at the top right

  • General settings (Allgemeine Einstellungen)

Kamstrup Module – Figure 2

Successor product​

smart-me does not offer a successor product for Kamstrup meters.

If you operate a smart-me ZEV (association for own consumption) (Switzerland only) and need a new solution for your metering (e.g. HAK), feel free to contact us; we offer our project partners favourable conditions for the replacement. (Special offer valid until 30.06.2025)

If measurements are carried out in a private setting for monitoring, home automation, etc., the Telstar 80A or Telstar CT can be installed at any time. If you are looking for a solution with your existing Kamstrup meter, we recommend taking a look at this page. https://whatwatt.ch/de or https://gplug.ch/ (gPlug caveat: Note that the Kamstrup smart-me module uses an undocumented function of the customer interface (CII). In contrast, the gPlugK uses the publicly released CII. As a result, the gPlugK may not work on an Omnipower even though the smart-me product works with it. This problem can sometimes be solved by a change to the remote configuration by the grid operator.

Invalid meter key (CKW)​

Problem

  • Kamstrup Module is offline with the error message Invalid meter key (Ungültiger Zähler Schlüssel)

Solution

The cause of the problem has been known since 14.5.2025 13:43: During system maintenance by CKW, all keys of the Kamstrup meters were accidentally renewed and the previous ones invalidated.

As a solution, you need to send CKW an email at messtechnik@ckw.ch with the meter number (see image at the bottom right). CKW will then send you a new key.

Kamstrup Module – Figure 3

Kamstrup Module – Figure 4

Downloads​

Data sheet

English

Technical documents

Quick Starter Guide

FAQ​

At what interval do the meters send data?

  • Every 15 minutes, i.e. at xx:00:00, xx:15:00, xx:30:00 and xx:45:00. This sends the data required for the load profile. In the event of a connection interruption, this data is stored locally and sent later.

  • In addition, an individual configuration can be set up:

    • With Basic or Limited licenses: max. 1x per minute.

    • With Pro licensing: max. 1x per second

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