Electricity meters are the basis for every electricity bill, but terms like digital electricity meter, smart meter, or OBIS codes often cause confusion. This FAQ provides a concise overview of the different types of electricity meters, explains important displays, and shows how consumption data can be read and analyzed digitally. You'll also learn how reading devices like the stromleser can help you better understand your own electricity consumption.
BASICS
What is a Ferraris counter?
A Ferraris meter is a mechanical electricity meter with a rotating metal disc. The rotational speed of the disc indicates the electricity consumption and is measured in kWh by a counter.
What is a digital electricity meter?
A digital electricity meter measures electricity consumption electronically in kilowatt hours (kWh). It displays the current meter reading on a screen and is increasingly replacing the old mechanical Ferraris meter.
What is a smart meter?
A smart meter is an intelligent metering system that digitally measures electricity consumption and automatically transmits the data to the grid operator. It consists of a digital meter and a communication unit (smart meter gateway).
What is the difference between a digital electricity meter and a smart meter?
A digital electricity meter displays consumption locally on its screen. A smart meter also automatically transmits the consumption data to the metering point operator via a communication network.
How can I find out which type of electricity meter I have?
A Ferraris counter has a rotating metal disc.
A digital electricity meter has a display without radio transmission.
A smart meter also has a communication module or a separate smart meter gateway.
READING & DISPLAY
How do you read a digital electricity meter?
The meter reading is taken directly from the electricity meter display. The relevant value is the numerical value in kilowatt-hours (kWh) without decimal places. If multiple displays are changing, the consumption reading is shown with the code "1.8.0".
What do 1.8.0 and 2.8.0 mean on the electricity meter?
Display 1.8.0 shows the electricity consumption drawn from the grid in kWh.
Display 2.8.0 shows the energy fed into the system, e.g. from a photovoltaic system.
Which number is the correct meter reading?
The correct meter reading is the number next to the display showing 1.8.0. This value is used for billing electricity. Decimal places are generally not included.
PIN ON THE ELECTRICITY METER
What is the PIN for the electricity meter?
The PIN is a four-digit code that unlocks additional displays on the digital electricity meter. These include, for example, current power readings or detailed consumption information.
What to do if the PIN for the electricity meter is missing or has been forgotten?
In this case, the metering point operator should be contacted to request a new PIN. For security reasons, activation is only possible through the official provider.
How do I keep the PIN active?
For many (though not all) meters, after entering the PIN, the setting must be changed to "OFF" and the INF (information interface) to "ON". This ensures that the activation remains active and the extended displays are permanently accessible.
DEFECTIVE ELECTRICITY METER
Can a digital electricity meter be defective?
Yes, even a digital electricity meter can be defective. Technical faults, aging, or external influences can cause the meter to measure incorrectly or to no longer display any values.
What to do if the electricity meter displays incorrect readings?
Any noticeable deviations should be reported to the responsible metering point operator. They will check the electricity meter and, if necessary, arrange for a check or replacement of the device.
READ ELECTRICITY METER VIA APP
Is it possible to read an electricity meter via an app?
Yes, an electricity meter can be read via an app if it has a digital interface or a reading device. The app displays the meter reading as soon as the data is transmitted from the electricity meter.
How can you see electricity consumption in real time?
Electricity consumption can be viewed in real time when a reading device continuously reads the meter. The values are immediately transmitted to an app or smart home system and displayed there as current consumption.
electricity reader
What is the electricity reader?
The electricity meter reader is a digital reading device for electricity meters that records consumption data directly at the meter. It automatically reads the displayed values and transmits them to the electricity meter reader app or to a smart home system like Home Assistant. This allows for the digital analysis of current electricity consumption, meter readings, and consumption trends.
There are two versions: stromleser.one with its own stromleser firmware, and stromleser.tasmota. , which is based on the Tasmota firmware.
For which electricity meters is the electricity reader suitable?
The electricity reader is suitable for digital electricity meters and smart meters with an optical interface.
How is the electricity meter installed?
The electricity meter reader is attached to the outside of the electricity meter, usually at the optical interface on the front of the meter. It is attached without contact, requiring no opening of the meter. The meter reader is then connected to the Wi-Fi network and configured using the meter reader app. Afterward, the device automatically and continuously transmits the consumption data.
SMART HOME / HOME ASSISTANT
How do I integrate the power meter into Home Assistant?
The energy meter is integrated into Home Assistant by transmitting its measurement data via MQTT. First, the device is connected to the Wi-Fi network. Then, an MQTT broker is set up in Home Assistant, and the energy meter is added as a sensor. After setup, the consumption data can be viewed directly in the dashboard.
What is Tasmota?
Tasmota is an alternative device software for smart home hardware. It allows sensors and actuators to be controlled locally and data to be sent to smart home systems like Home Assistant via protocols such as MQTT.
Conclusion
Understanding and digitally reading your electricity meter allows you to keep track of your energy consumption. With the electricity meter reader, your meter becomes a smart tool for greater transparency and control in everyday life.
❗️ If you have any questions or need support, please contact us by email ( info@energieleser.de ).
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