
66
Micro Motion
®
Model 3711 Gas Flow Computers
Configuring I/O
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
Analog Inputs – Alarms panel
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.
The AI reverts to standard
behavior after the Model 3711 has
completed startup processing.
Fault Value
Specifies the value to be used if Action on Failure is specified as
Set To Fault Value.
Table 7-3
Analog Inputs – Alarms parameters
Parameter
Description
Comments
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.
Typically set lower than the low
alarm value.
Table 7-2
Analog Inputs – Advanced parameters
continued
Parameter
Description
Comments
Summary of Contents for Micro Motion 3711
Page 32: ...24 Micro Motion Model 3711 Gas Flow Computers ...
Page 44: ...36 Micro Motion Model 3711 Gas Flow Computers ...
Page 56: ...48 Micro Motion Model 3711 Gas Flow Computers ...
Page 68: ...60 Micro Motion Model 3711 Gas Flow Computers ...
Page 92: ...84 Micro Motion Model 3711 Gas Flow Computers ...
Page 108: ...100 Micro Motion Model 3711 Gas Flow Computers ...
Page 140: ...132 Micro Motion Model 3711 Gas Flow Computers ...
Page 196: ...188 Micro Motion Model 3711 Gas Flow Computers ...
Page 210: ...202 Micro Motion Model 3711 Gas Flow Computers ...
Page 233: ......