Metering Blog

Here we are publishing answers on your questions related to electrical energy and metering. If you have questions, please use our contact form or write a comment below the related article.
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Ingress Protection against Water and Dust

Ingress Protection against Water and Dust

In many regions of the world the energy meters are installed outdoor. They are exposed to various climatic- and weather conditions. ...
Tampering of Electric Energy Meters

Tampering of Electric Energy Meters

For revenue protection each utility or power company is doing a dedicated loss statistic. The loss due to meter tamper is part of it. ...
Face Recognition System CL2055

Face Recognition System CL2055

The face recognition system CL2055 has an integrated temperature scanner. It is suitable where ever entrance control with body temperature measurement is needed. ...
User Interface Unit UIU

User Interface Unit UIU

The user interface unit (UIU) is a device for remote access to STS payment meters. ...
Negative Phase Current

Negative Phase Current

Electronic energy meters can have various additional useful functions for tamper protection, event logging or billing. ...
Efficiency on Wednesdays

Efficiency on Wednesdays

Our management has instructed the R&D department to come out with an automated solution. We are CLOU, so the product was finished in 20 days. ...
Preventive Measures for Virus Control

Preventive Measures for Virus Control

As you maybe already know the New Year started not as expected. Cases of a contagious coronavirus have increased dramatically over the past weeks. ...
What is Measurement Uncertainty?

What is Measurement Uncertainty?

When we do high precision measurements we have to make sure that we are getting the measurement results as accurate as possible. ...
Wrong Phase Sequence

Wrong Phase Sequence

The measurement circuit of CLOU three-phase energy meters constantly monitors transition through zero on all phase voltages. ...
Welcome to the Year of the Rat 2020

Welcome to the Year of the Rat 2020

As usual our company has rented the Shenzhen sports stadium for the annual Spring Festival Gala and Outstanding Staff Award Ceremony. ...
What are Transient Voltages?

What are Transient Voltages?

Transient voltages are short time peaks in the a.c. power supply. They typically last a few milliseconds and the voltage can reach several thousand volt. ...
What is a Voltage Swell Event?

What is a Voltage Swell Event?

A voltage swell is a surge (increase) of voltage above 110 % of the rms magnitude in your power grid. The duration can be between ...
What is a Voltage Dip Event?

What is a Voltage Dip Event?

Sometimes it\'s also referred to voltage sag (IEEE term). The meaning is the same. This article explains the power quality event logging inside of smart ...
The First Breath Notification

The First Breath Notification

The First Breath Push notification is sent to the head end system (HES) as soon as the meter is powered up. ...
The DLMS Push Message

The DLMS Push Message

A electronic energy meter with communication via DLMS can be configured to send Push messages. Usually a meter acts as a server. ...
The Last Gasp Outage Notification

The Last Gasp Outage Notification

Smart meters can generate a Push message in case of power fail. This event is called Last Gasp. ...

12 Replies to “Metering Blog”

  1. I have a clou meter token and am just wondering how i can silence the beeping alarm that goes off when your are low on tokens. Its kinda annoying. Ypur help will be highly appreciated.
    Regards,
    Steve

    1. Steve, try code 812 on your UIU (user interface unit) and confirm by pressing the enter-button (blue or red). If it doesn’t work, please tell us the meter model type.

    1. If the energy meter has a function for measuring reactive energy, it must have a test output (a flashing diode) indicating the reactive consumption. This test output has a meter constant, indicated in e.g. pulses per kvarh. You set measurement mode in your test plan to reactive measurement and adjust the scanning heads in front of the reactive diode. All other procedure is the same like active accuracy test. The settings for reactive power is done inside the test bench and reference standard automatically.

  2. which is the standard to be used for testing of for Reactive power in energy meter and what are the acceptable error margins?

    1. The IEC 62053-23 is applicable for static meters for reactive energy (classes 2 and 3). The allowed errors for accuracy are given in the related tables. If you have a meter with reactive class 2, the allowed error is +/-2% for all balanced loads above 0.1 Ib and power-factor 1.

  3. My CLOU (CL710K11) just shows zeros when I try to enquire balance or input new token, I think it is not communicating with the power source

    1. The possible reason could be long communicate distance or the power cable quality,plsase use another socket and try again. if still doesn’t work,pls confirm whether the UIU address is right one( enter 1593570 plus the meter number to set the UIU address).

    1. Thank you for your message. The operation manual is for the power company or utility. End users get an introduction by the power company and a reference card with the user interface short codes. The configuration for each power company is different. If you are in doubt about a function, ask your power supplier.

    2. My CL710K11 meter
      Red light is lit next to the word “WIRING” and I noticed low power in house today. Any idea what could be the problem.

    3. It indicates a poor communication between the user interface unit and the meter. One reason behind can be a very low supply voltage from the grid.

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