Device Variables; Dynamic Variables - Universal Flow Monitors PI Series Installation And Operation Manual

DEVICE VARIABLES

Device Variable
Number
0,246
1,247
244
245

DYNAMIC VARIABLES

Two Dynamic Variables are implemented.
PV Volumetric Flow Reading
SV Totalizer Value based on PV
The PV is derived using a calibrated linearization table applied to A/D converter readings of hall-effect sensors.
The SV is based on a 5ms timer and is updated based on the current reading of flow.
Both PV and SV values are smoothed.
EX-MANUAL-032321
Name Description
Primary Variable Flow
Secondary Variable Totalizer
Percent Range Output % of FS
Loop Current Current Output
Meaning
Units
GPM,CMH,LPM
Follows PV Units
None
mA
Units
GPM,CMH,LPM
Follows PV units
HART Class Code
66
66
66
66
15