Dynamic SFC332L, Operator'S Manual

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Dynamic Flow Computers SFC332L Manual Quick Start
— 1-24
Date: 8/1/2019
Density Input Wiring:
When using a live densitometer input with frequency signal, the signal can be brought into the Smart Flow
Computer in its raw form. The Smart Flow Computer accepts a sine wave or square with or without DC
offset. Example for density wiring can be seen in the wiring diagram. Three are two drawings, one with
barrier and the other without. Barriers are used for area classification. Notice that the RTD wiring is also
drawn to show how to hook the density RTD signal.
Note: When wiring the density input polarity is of significance and reverse polarity could
result in some damage or power loss. The density signal is on connector P4, the
third and fourth pin down from the top. The third pin down is density plus, the
fourth down is density minus. When Density input is 4-20mA it should be
connected as a regular 4-20mA signal to the analog input and not the density
frequency input.