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1/99 SMV 3000 Transmitter User’s Manual 71
6.9 FlowConf Configuration - PV4, Continued
About LRV and URV
The LRV and URV set the desired zero and span points for your
calculated measurement range as shown in the example in Figure 24.
Figure 24 Typical Volumetric Flow Range Setting Values
Typical Range Configuration for Volumetric Flow
LRL
LRV SPAN URV URL
0 325 650 975 1300 m
3
/h
Range Limits Measurement Lower Range Upper Range Span
Range Value Value
0 to 1300 m
3
/h 0 to 650 m
3
/h 0 m
3
/h 650 m
3
/h 650 m
3
/h
ATTENTION • The default engineering units for volumetric flow rate is cubic meters
per hour and tonnes per hour is the default engineering units for mass
flow rate.
• The URV changes automatically to compensate for any changes in the
LRV and maintain the present span (URV – LRV).
• If you must change both the LRV and URV, always change the LRV
first.
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