About the author: Reinhard Günther

Laoren
Reinhard Günther

LaoRen (老任) is the Chinese name of Reinhard Günther.
He is Product Director and Consultant with more than 35 years experience in energy metering. In his spare time, he writes articles for CLOU GLOBAL.

The views and opinions expressed are those of the author and do not necessarily reflect the official policy or position of CLOU GLOBAL.

  • Aug 26 2020
    UIU 300x200 1

    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...
  • Aug 20 2020
    meter box CL758WK

    Swapping Phase and Neutral

    Will an electronic energy meter measure accurate when I invert phase and neutral during installation? This question came up recently.
  • Aug 19 2020
    ring waveform IEC 61000 4 12

    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.
  • Aug 18 2020
    Taj Mahal Uttar Pradesh

    The Uttar Pradesh Smart Meter Shutdown

    A sudden shutdown of 150,000 smart meters happened recently in the Uttar Pradesh province, India.
  • Aug 12 2020
    esd warning sign e1597885223669

    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.
  • Aug 11 2020
    CLOUGLOBAL SMT lines

    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.
  • Aug 10 2020
    IEC Standard symbol picture

    The Stability of IEC Standards

    Meter manufacturers, utility laboratories and type testing institutes have planning security until year 2025.
  • Aug 10 2020
    Aristo Trilog slide rule

    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.
  • Aug 07 2020
    r meter1

    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.
  • Aug 03 2020
    voltage amplifier CL309 U 5 seconds measurement

    Test Bench Stability of the Output Settings

    In customer requests and tenders you can still find extensive requirements for the stability of the output settings.
  • Jul 31 2020
    meter current range

    Where is the Basic Current?

    In the last 100 years we had a lovely Ib for direct connected meters. Now the name has changed to nominal current In.
  • Jul 31 2020
    initial start up time for meters with closed relays

    The Initial Start-Up for Energy Meters

    Electronic energy meters are like small computers. The need some time for starting up.