Bidirectional Flowrate Output Function - Oval ALTI mass Series Instructions Manual

L-770HP--E

8.11 Bidirectional Flowrate Output Function

Direction of flow can be set to assigning of the status output function.
Forward / Reverse flowrate can be measured according to the forward / reverse status output assigned to
the status output, pulse and analog (absolute value) outputs of flowrate.
■ Operations
Item
Flowrate pulse output
Flowrate analog output
Status output
Internal integrating counter
■ Example of operations
Flowrate measurement value
Pulse output
Analog output
(Flowrate)
■ Setting method
（）Set Output function (assigning of status output function) to [Bi.Direction].
By setting to "Bi Direction" , the Forward / Reverse flowrate output function is activated. When the
flow direction is Reverse, Status is set to ON.
（）Set other status output settings. Refer to ". Status output function" .
（）Set pulse output and analog output if needed.
As the analog flowrate output is the absolute value of flowrate, it is not necessary to set the negative
value of flowrate for the lower limit value of analog output (LRV) (LRV = 0 for example in the figure
described above).

Output the forward / reverse flowrate (absolute value).
Output the forward / reverse flowrate (absolute value).
Output the flow direction (Status ON with reverse flow)
Execute addition for forward flow and execute subtraction for reverse flow.
Forward
Reverse
ON
Status
OFF
Operation
Flow Cutoff
Status is generated with
the reverse flowrate.
Counter 1 Pulse
1 2 3 4 5
Totalizer 1 kg
1 2 3 . 4 5
逆方向流量分は、減算されます