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CALIBRATION
Manual Calibration
Manual calibration can be done setting the micro switches on PCB in the
proper combination in according with the pipe size (from d20-DN15 up to
d>200-DN>180) where sensor will be installed. Positions are reported in the
following table.
Lock position is a No Functioning Combination while the USB combination is
for accessing to the USB connection.
The setting has to be done before powering up the instrument.
F6.61 provides a frequency output (0Hz@0m/s - 800Hz@8m/s) by a
Open Collector (connectors 9-10) and an analog output (4mA@0m/s –
20mA@8m/s).
Both outputs are proportional to the flow velocity and so to the flow rate.
Moreover a Open Collector (connectors 7-8) is dedicated to specify the flow
direction.
In manual calibration the S.S.R. cannot be set and consequently used.
Switch 1
Off
Off
Off
On
On
On
On
On
On
On
On
14
Switch 2
Switch 3
Off
On
On
Off
Off
Off
On
On
On
On
On
Switch 4
Off
Off
On
Off
On
On
Off
Off
Off
On
On
Off
On
On
Off
Off
Off
On
On
Off
On
On
Diameter
Lock
D63
D75
D90
D110
D125
D140
160
D200
> D200
USB
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