CLOU GLOBAL TECHNOLOGY provides energy management products and customized solutions for efficient energy usage, cost reduction, and sustainability compliance.
Here we are publishing answers to your questions related to our products and services.
Please do not hesitate to reach out to us if you have any questions or queries. You can use our easily accessible contact form or can leave a comment below the relevant article to get in touch with us.
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Recent Articles
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Make the Most of Portable Meter Test
In order to protect the utility revenue it's essential to do regular on-site tests on meter installations.
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Johannesburg Ransomware Attack
Cyberattacks against critical infrastructure have become common…
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Security for Optical Ports on Energy Meters
Optical ports provide local access for service engineers during installation or maintenance of energy meters. Households have physical access to their energy meter and might try to get access to the meter software.
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European Accreditation
The European Accreditation Association has per country one member. This members are allowed to approve test laboratories for calibration.
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What is DLMS/COSEM ?
DLMS stands for Device Language Message Specification, a generalised concept for abstract modelling of communication entities
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Calculation methods for energy
We've got several questions related to the different recording methods for electrical energy meters. Here is the behaviour with different settings…
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General information for wiring diagrams
CLOU follows the DIN EN 81346-2 for marking and identification of components inside of automated test equipment.
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Environmental Conditions For Meter Test
Laboratory meter test equipment should operate under defined climatic conditions.
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Acceptance tests for energy meters
From time to time there are some questions regarding the acceptance inspection (FAT) for energy meters. This paper is to clarify the legal and metrological matters.
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The difference between adjustment and calibration
Calibration means the comparison of a unit under test with test equipment with higher accuracy.
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Pulse Calculation for Stationary Test Benches
All energy meters used for billing purpose have a test output for calibration. This can be flashing diode, a pulse output at the terminal or the mark of a rotating disk. This test output gives us information about the power consumption.
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Terminal wiring for electrical energy meters
In meter- or test bench descriptions you can find various expressions, all with the same meaning.
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How long does a no-load test take?
When the voltage is applied with no current flowing in the current circuit, the test output of the meter shall not produce more than one pulse.
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The different current subscripts
Together with tender documents and meter specifications you will find various subscripts related to current. Now let's look more in detail: Starting current Ist according to IECThe starting current is a fraction of the basic current or nominal current. See the multiplication factors below: IEC 62053-11 direct connected class 1: 0.004 Ibclass 2: 0.005 Ib…
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When do I need Isolation Current Transformers?
Isolation Current Transformers (ICT) are needed to test more than one direct connected energy meter on a test bench with multiple positions, assuming that the I-P links can not be opened.
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The Standard Transfer Specification STS
The Standard Transfer Specification (STS) has become recognised as the only globally accepted open standard for prepayment systems, ensuring inter-operability between system components from different manufacturers of prepayment systems.
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The four-quadrant diagram in electricity metering
The interactive diagram shows the relationship between the phase angle φ, apparent-, active- and reactive power respective energy in accordance with clauses 12 and 14 of IEC 60375.
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Why do I need a Vector Diagram?
Modern reference standards and calibration devices have usually a graphical function to show the relationship between the voltages and the currents.
Thank you for your unwavering commitment to excellence, and for sharing your insights on what it takes to be a world-class energy services provider. Your dedication sets a high standard for the industry. Keep up the fantastic work.
Thank you so much for your kind words and appreciation. I truly appreciate your feedback and support. It is incredibly encouraging to hear that our commitment to excellence and insights in the energy services industry have resonated with you.
Please what causes the prepared credit to ran fast?
The credit deduction is based on your consumption. If you use less electrical energy, the meter runs slower.
My CL710K11 Single Phase AMR Prepaid Meter is blinking red light at "warning" sign indicator. What does this mean?
Thanks.
If there is no other indication on the display, it means that your credit is getting low.
Thank You! So much for a great blog and best of luck for the future,
I'll be in touch.
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Kindly how can I silence my meter even after dailing 812# still it will revive on its own and starts beeping its really annoying.
The beep can only switch off temporarily for just one minute.
The beep appears because there is an alarm, either low credit, or overload, or tamper.
You can silence your meter permanently after you solve the alarm.
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
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.
How can someone test reactive energy kvarh in a meter test bench?
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.
which is the standard to be used for testing of for Reactive power in energy meter and what are the acceptable error margins?
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.
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
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).
Where can I find the operational manual for clou meter, with series number CL710K11
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.
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.
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.