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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Repeatability Test for Energy Meters

Repeatability Test for Energy Meters

Another new test introduced by the IEC62052-11 Edition 2 is the repeatability test. ...
Influence of Self Heating

Influence of Self Heating

We need to figure out whether the occurring internal heat is causing a temporary error drift above the allowed limits for variation. ...
No Load Test for Energy Meters 2020

No Load Test for Energy Meters 2020

With publishing of the Edition 2 of IEC62052-11 the minimum run time calculation formula has changed. ...
Odd Harmonics in the Current Circuit

Odd Harmonics in the Current Circuit

The edition 2 of the IEC62052-11 has introduced two additional tests for odd harmonics. ...
Which Meter Constant should a Meter have?

Which Meter Constant should a Meter have?

Higher constant means faster testing. The most time-savings are coming from the no-load test and the starting test. ...
The Energy Meter Register Resolution

The Energy Meter Register Resolution

The main purpose of an electronic energy meter is the accurate metering of the customer consumption. The meter has registers for storing the various consumption values ...
Short Interruption and Dip Tests IEC62052-11

Short Interruption and Dip Tests IEC62052-11

The International Electrotechnical Commission (IEC) has released the edition 2 of the IEC62052-11. ...
The Energy Meter Tamper Event Log

The Energy Meter Tamper Event Log

This segment of the event logs is capturing all possible meter manipulations and abnormal environmental conditions. ...
The Energy Meter Standard Event Log

The Energy Meter Standard Event Log

All extraordinary things happen inside or close to an electronic meter are called \"events\". An event has at least one time record (date & time of occurrence). Some events can also have an end-time stamp. ...
Meter housings and fixed dimensions

Meter housings and fixed dimensions

Recently I stumble over a request for a fixed size of meter enclosures. Tolerances have also been given with +/- 2 mm, together with features like auxiliary circuits and exchangeable communication modules. ...

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).

  4. Where can I find the operational manual for clou meter, with series number CL710K11

    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.

      1. 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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