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FuzzyBot (обсуждение | вклад) м (FuzzyBot переименовал страницу WBIO-AI-DV-12 Analog Inputs 4-20mA/en в WBIO-AI-DV-12/4-20mA Analog Inputs/en без оставления перенаправления: Часть переводимой страницы WBIO-AI-DV-12 Analog Inputs 4-20mA.) |
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Строка 152: | Строка 152: | ||
For models designed to measure current, the '''scale' ''factor must be set to 0.1 | For models designed to measure current, the '''scale' ''factor must be set to 0.1 | ||
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== | ==Device pictures and drawings == | ||
{{Wbincludes:WBPicturesNoDrawing|2}} | {{Wbincludes:WBPicturesNoDrawing|2}} | ||
== | == Bugs and features == | ||
=== ERRAIDV01: | === ERRAIDV01: Reduced precision of inputs === | ||
==== | ==== Affected devices ==== | ||
WBIO-AI-DV-12/4-20MA | WBIO-AI-DV-12/4-20MA shipped before May 20, 2019. | ||
==== | ====Description==== | ||
Current measurement error in WBIO-AI-DV-12/4-20MA can be up to 1%. | |||
==== | ====Reasons and detailed description==== | ||
The nominal value of the input protective resistor is selected too large relative to the internal resistance of the ADC. | |||
==== | ====Workarounds==== | ||
no | |||
==== | ====Scheduled fix=== | ||
Starting from May 20,2019 components, providing the error is not more than 0.1%+0.003 mA, are installed in WBIO-AI-DV-12/4-20MA |