TSI Instruments HM685, Owner'S Manual

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3-2 Hydronic Manometer Model HM685
F l o w S e t u p
Use Flow Setup to set values for key factors that impact measured
flow values.
Select Cv/Kv Factor
Allows input up to 100 valve flow coefficients (Cv/Kv factors) to calculate
flow from differential pressure. These are typically coefficients provided by
the balancing valve manufacturers and can be dependent on the type of
valve and the valve setting in the case of variable valves. Within
Flow
Setup 100 user-programmed valve flow coefficients ( Cv or Kv ) that are
stored within the instrument are selectable. The most recent selected Cv
(Kv) factor is the default when entering the Flow Measurement screen.