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The value specifies how many values - of a maximum possible determinable quan-
tity - could be taken into account. If one of ten measurements within a measure-
ment cycle for a path is wrong (i.e. 9 valid measurements) the DSP provides 90%
valid measurements, and the path performance is 90%.
The overall performance is the average of the performance of all individual paths
(L-6 to Q-6, valid measurement G1 - G6) for the last n measurements (n = moving
average in E-09; the default is 10 measurements).
Notice
The USM-GT-400 keeps its calibrated accuracy even if up to 2 measurement
paths fails! The value "signal acceptance" falls down to 66% then.
Exceptions:
•
If | Vw | <VwUg (the speed is below the minimum speed), then the path perfor-
mance and the overall performance goes to 100%.
Additional documentation/literature Modbus
•
Modicon Modbus Protocol Reference Guide, PI-MBUS-300 Rev. J, June 1996
DSfG
•
Gas Information Nr. 7 – 4. Überarbeitung 10 / 2009
Technische Spezifikation für DSfG-Realisierungen
Teil 1 Grundlegende Spezifikation
•
Gas Information Nr. 7 – 4. Überarbeitung 10 / 2009
Technische Spezifikation für DSfG-Realisierungen
Teil 2 Abbildung der DSfG auf die IEC 60870-5-101
und -104
•
DSfG-Datenelementeliste
DSfG Dellist 23-10-09 Teil3
ERZ 2000-NG
•
Bedienungsanleitung Flow Computer Serie ERZ 2000-NG
•
Operating Instructions Flow Computer Series ERZ 2000-NG
8 Installation
Manual USM GT400 · EN10 · May 2021
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