
Release 3
34-ST-25-20 MC Toolkit User Manual
75
9/06
Reference Data
Table 25 Glossary
Item
Definition
Description
Conformity
Response form of
sensor.
User selection of PV conversion algorithm: Linear or Square Root
D/A Trim
Digital to Analog
Trim
Adjustment to digital-to analog (output) conversion algorithm that
aligns minimum and maximum values of scaled digital range to
minimum (0%) and maximum (100%) values of analog output.
Damping
Digital algorithm in transmitter MPU that reduces noise in a PV that
is generated in the process or induced in transmitter components.
EU
Engineering
Units
A standard scale of values, selected by the user from a standard set for
convenient display and interpretation.
Input
1.
Physical property (e.g., pressure) applied to a sensor
2.
Digital value, calculated in the transmitter, that represents
magnitude of the physical input
Local Meter
A device associated with a single transmitter and installed locally (in
the transmitter housing) or remotely (in a separate housing) that
displays variables sensed or calculated in the transmitter.
Loop Test
(In Analog Mode only) a set of commands from the HHC that causes
the transmitter to provide 0% (4 mA) and 100% (20 mA) for testing
proper operation of all components of the current loop.
LRL
Lower Range
Limit
Minimum value in the useful range of the physical property of a
transmitter at which a sensor can operate.
LRV
Lower Range
Value
Minimum value in a continuous range of "normal" process values.
Match PV’s
Toggle for PV
Matching
When On, the value of PV2 is set to the value of PV1.
Meter Units
User-selected scale of values that provides for convenient
interpretation of values in the associated transmitter.
Output
Analog or digital value, calculated from the input, that is transferred
from the transmitter to a receiver (e.g., process control equipment)
PV Process
Variable
Measured magnitude of a primary physical property such as pressure
or temperature.
PV Input
Physical property such as pressure or temperature, applied to an input
sensor
PV Units
Process Variable
Units
Standard scale of values of a PV, selected by the user for convenient
display and interpretation.