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ABB AO2000 Series User Manual

ABB AO2000 Series
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AO2000 CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B 317
Process status
Definitions
The process status (see below) provides information on measurement values
and the process being monitored by the analyzer.
System status (see page 318) provides information on the gas analyzer itself.
Process status
The term "process status" includes
• Transgression of measuring range limits
• Transgression of limit values
by the measured values.
Transgression of measurement range limits
If a sample component value is > +130 % or < −100 % of the span, the meas-
ured value in the display flashes. A status message is also generated in each
case; these messages will not be entered into the logbook.
The thresholds established cannot be changed.
Transgression of limit values
If a measured value is above or below a limit value, this status is output as a
binary signal at one of the digital outputs.
Two prerequisites must be met to this effect:
• The limit value must be assigned (see page 181) to a digital output by
means of function block configuration.
• The limit value monitoring parameters (direction of effect, threshold
value, hysteresis) must be set (see page 162).
The assignment of limit values to certain digital outputs is factory-set; this
is documented in the analyzer data sheet.

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ABB AO2000 Series Specifications

General IconGeneral
BrandABB
ModelAO2000 Series
CategoryMeasuring Instruments
LanguageEnglish

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