Dynamic SFC332L, Operator'S Manual

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Dynamic Flow Computers SFC332L Manual Quick Start
— 1-40
Date: 8/1/2019
Verifying Digital Inputs and Outputs
Use the diagnostic menu. A live input and output is displayed On the top of the screen pulse inputs and
density frequency input are shown. Compare the live value against the displayed value on the screen.
Failure to read turbine input could be a result of the preamp being bad or the jumper selection for sine and
square wave input are not in the right position. Refer to wiring diagram
Wiring | Turbine
for
proper turbine input wiring. Density input can be sine or square wave with or without DC offset.
Minimum accepted signal has to be greater than 1.2 volt peak to peak. Status input is shown below the
frequency input to the left of the screen. When the status input is on, the live diagnostic data will show
ON
.
Minimum voltage to activate the status is 7 volts with negative threshold of 2 volts. Switch outputs are to
the right of the status inputs. The switch outputs are open collector and require external voltage.