ALL ARTICLES CATEGORIZED IN: CATEGORY: METERING BLOG

CLOU follows the DIN EN 81346-2 for marking and identification of components inside of automated test equipment.

Laboratory meter test equipment should operate under defined climatic conditions.

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.

Calibration means the comparison of a unit under test with test equipment with higher accuracy.

In meter- or test bench descriptions you can find various expressions, all with the same meaning.

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.

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 …

Continue reading "The different current subscripts"

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.

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.