Energy meters have certain characteristics, including maximum current. It is the basis for all types of meter tests.
September 21, 2023
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The TID Clock is ticking
If you are using STS prepayment energy meters you might remember that updates are required for the key management centre (KMC), the security modules and the vending software.
October 28, 2023
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Markings on the Case of Energy Meters
The IEC 62052-11 Edition 2 has introduced some changes for the meter marking and documentation. Today we cover the mandatory content of the nameplate for IEC meters.
March 14, 2024
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Pairing of a User Interface Unit with a Meter
A user interface unit (UIU) is a remote access terminal for STS prepayment meters. The device is placed inside the users premisses while the energy meter is mounted outside and mostly not direct accessible.
October 29, 2023
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Swapping Phase and Neutral
Will an electronic energy meter measure accurate when I invert phase and neutral during installation? This question came up recently.
January 3, 2024
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Ring Wave Immunity Test
The IEC 62052-11 Ed.2 comes with a lot of changes for meter type testing. Another new introduced test for electromagnetic compatibility (EMC) is the ring wave immunity test.
June 21, 2021
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The Uttar Pradesh Smart Meter Shutdown
A sudden shutdown of 150,000 smart meters happened recently in the Uttar Pradesh province, India.
January 2, 2024
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Electrostatic Discharge Test for Energy Meters
Sometimes it happens that you touch the door knob and you get an electrical shock. It's not dramatically for your body but an unpleasant feeling.
October 27, 2023
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Don't touch anything!
In your utility laboratory and for your on-site workers you take of course care for a proper training on the job and especially for personal safety.
October 27, 2023
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The Stability of IEC Standards
Meter manufacturers, utility laboratories and type testing institutes have planning security until year 2025.
February 26, 2024
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The Critical Change Value
The critical change value indicates the maximum amount of change allowed in the meter's energy registers during disturbance tests without any current flowing in the meter's current circuits.
October 26, 2023
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The Optical Test Output and Pulses
Each electronic energy meter must have at least one optical test output. Commonly its named with flashing pulse diode or similar.