Analog Input - Alarms Panel - Emerson Micro Motion 3711 Configuration And Use Manual

Configuring I/O
Table 7-2 Analog Inputs – Advanced parameters continued
Parameter Description
Clipping Controls range of filtered EUs values.
• Enabled: Filtered EU values will be cut off at LoLo Alarm and
HiHi Alarm limits (see Section 7.4.4). All values below or
above the limits will be reported as the limit values.
• Disabled: No cutoff will be applied, and all filtered EU values
will be reported as the actual values.
Action on Failure Controls the Model 3711's behavior after a point fail alarm
(hardware or transmitter failure).
• Hold Last Value: The last value from the analog input is used
for Model 3711 calculations.
• Set To Fault Value: The value specified in Fault Value is used.
Fault Value Specifies the value to be used if Action on Failure is specified as
Set To Fault Value.
7.4.4 Analog Input – Alarms panel
The Analog Input – Alarms panel is shown in Figure 7-4. Parameters on this panel are listed and
defined in Table 7-3.
Note: Even if you will not use all alarms, check and adjust the value of each one so that no false
alarms are generated.
Figure 7-4
Table 7-3 Analog Inputs – Alarms parameters
Parameter Description
Low Alarm Value, in EUs, to which the input value must fall to generate a
low alarm.
High Alarm Value, in EUs, to which the input value must rise to generate a
high alarm.
LoLo Alarm Value, in EUs, to which the input value must fall to generate a
low-low alarm.
66
Analog Inputs – Alarms panel
Comments
The AI reverts to standard
behavior after the Model 3711 has
completed startup processing.
Comments
Typically set lower than the low
alarm value.
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Micro Motion Model 3711 Gas Flow Computers