What is the accuracy of the ATS48 display for motor current (LCR) and is the overload protection of the unit based upon this same value being perceive...
Goals and Symptoms
What is the accuracy of the ATS48 display for motor current (LCR) and is the overload protection of the unit based upon this same value being perceived and displayed by unit?
Facts and Changes
ATS48 Customer display reads aproximately 10amps lower (Loaded and Unloaded) than three different meters that have tested amperage with
Causes and Fixes
The accuracy of the current display LCR is around 5 and 10%.
In fact, l'ATS is not a measurement instrument like a digital ampmeter.
The measure of two currents is made by two transformer. The third current is re-formed by the software of product.
The accuracy and the resolution of the measurement line and the digital processing generate the difference between the value (LCR) on the display and the real value (rms current).
Remark, when the current is near of nominal current ICL, better is the accuracy.
Legacy KB System (APS) Data: RESL156348 V3.0, Originally authored by on , Last Edited by on
Related ranges: Altistart 48
Publisert for: Schneider Electric Norway
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