Rosemount Model 8732C Integral Mount Magnetic Flowmeter System
2-22
Connect Auxiliary
Output Control
In lieu of pulse output, the auxiliary output control function allows you
to externally signal a zero flow or reverse flow condition. The following
requirements apply:
Supply Voltage: Up to 24 V ac or dc.
Load Resistance: 100 to 100 k ohms (typical
' 1 k).
Pulse Duration: 0.5 to 100 msec (adjustable).
Maximum Power: 5.75 watts.
Switch Closure: Bi-directional MOFSET.
If your application uses auxiliary output control, complete the following
steps to connect the power source to the transmitter:
1. Ensure that the power source and connecting cable meet the
requirements outlined above.
2. Turn off the transmitter and pulse output power sources.
3. Run the power cable into the transmitter.
4. Connect the two wires that convey switch closure information to
the positive and negative terminals.
NOTE
If dc power is used, it is preferred to connect – dc to terminal – and + dc
to terminal +.
QUICK START-UP
Once the magnetic flowmeter system is installed and communication is
established, final configuration of the transmitter must be completed.
You may perform these functions with the LOI (Section 3: Local
Operator Interface) or HART Communicator (Appendix A: HART
Communicator). Specific instructions regarding these functions are
provided in Section 4: Transmitter Functions.
To initiate a basic flowmeter system start-up, only two parameters
are required:
1. Set Units
2. Analog Output Range
If your application of the magnetic flowmeter system involves more
advanced functions such as multidrop or pulse output, additional
configuration steps may be required to enable full functionality. See
Section 4: Transmitter Functions.
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