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SMV 3000 Transmitter User’s Manual 1/9970
6.9 FlowConf Configuration - PV4, Continued
PV4 (Flow) Upper
Range Limit (URL)
and Range Values
(LRV and URV)
Set the URL, LRV, and URV for calculated flow rate PV4 output by
typing in the desired values on the FlowConf tab card.
• URL = Type in the maximum range limit that is applicable for
your process conditions. (100,000 = default)
• LRV = Type in the desired value (default = 0.0)
• URV = Type in the desired value (default = URL)
ATTENTION
Be sure that you set the PV4 Upper Range Limit (URL) to desired value
before you set PV4 range values. We suggest that you set the PV4 URL to
equal two times the maximum flow rate (2 x URV).
About URL and LRL
The Lower Range Limit (LRL) and Upper Range Limit (URL) identify the
minimum and maximum flow rates for the given PV4 calculation. The
LRL is fixed at zero to represent a no flow condition. The URL, like the
URV, depends on the calculated rate of flow that includes a scaling factor
as well as pressure and/or temperature compensation. It is expressed as the
maximum flow rate in the selected volumetric or mass flow engineering
units.
Continued on next page