FlowCERT

Velocity
The calculation of flow using Velocity Area is only possible when the
current input or “speedy” velocity sensor is used to provide an input signal
proportional to the velocity of the flow.
When P130 Device Mode = 0 Off or 1 Modbus, using current input
Parameters P726 to P729 are used to configure the optional 4 -20mA input
for a velocity sensing device. When an Area/Velocity application is selected
the unit will automatically allocate the 4-20mA input to a velocity input
device and it is therefore not necessary to allocate P101 Transducer = 0
(Auxiliary).
P726 Low mA In
This parameter sets the mA current input figure that is used to represent
minimum velocity (P728) when the current input is allocated to a velocity
input device. Default = 4 mA
P727 High mA In
This parameter sets the mA current input figure that is used to represent
maximum velocity (P729) when the current input is allocated to a velocity
input device. Default = 20 mA
P728 Low Vel. In
This parameter sets the minimum velocity, at low mA In (P726) when the
current input is allocated to a velocity input device. Default = 0 m/sec
P729 High Vel. In
This parameter sets the maximum velocity, at High mA In (P727) when the
current input is allocated to a velocity input device. Default = 3 m/sec
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