MIC 1161 Manual
32
Appendix A
Glossary of Terms
Input Filter Time Constant
This parameter is used to filter out any extraneous impulses on the process
variable. This filtered PV is used for all PV-dependent functions (limit,
alarm, etc). The time constant is adjustable from 0.0 seconds (off) to 100.0
seconds, in 0.5 second increments. Default value is 2.0 seconds. Display
code is FiLt.
Hysteresis
This parameter is a switching differential on the non-exceeded side of limit
and is adjustable within the range of 0 to 10.0%, expressed in units. De-
fault value is 1. Display code is HySt.
Process Output Upper Value
This parameter defines the value of the retransmitted output (process vari-
able or setpoint , whichever is applicable) at its maximum value; for ex-
ample, for a 0-5V output, this value corresponds to 5V. It may be adjusted
within the range -1999 to 9999. The decimal position is always the same
as that for the process variable input. Default value is Input Range Maxi-
mum. Display code is Pou.
Note: If this parameter is set to a value less than that for the Process Out-
put Lower Value, the relationship between the process variable/setpoint
value and the retransmission output is reversed.
Process Output Lower Value
This parameter defines the value of the retransmitted output (process vari-
able or setpoint, whichever is applicable) at its minimum value; for ex-
ample, for a 0-5V output, this value corresponds to 0 V. It may be adjusted
within the range -1999 to 9999. The decimal position is always the same
as that for the process variable input. Default value is Input Range Mini-
mum. Display code is PoL.
Note: If this parameter is set to a value greater than that for the Process
Output Upper Value, the relationship between the process variable/setpoint
value and the retransmission output is reversed.
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