Model 8712C/U/H Magnetic Flowmeter Transmitters
2-12
Connect Auxiliary
Output Control
The auxiliary output control function allows you to externally signal a
zero flow or reverse flow condition. The following requirements apply:
If you are using auxiliary output control, you need to connect the power
source and control relay to the transmitter. To connect external power
for auxiliary output control, complete the following steps:
1. Ensure that the power source and connecting cable meet the
requirements outlined above.
2. Turn off the transmitter and auxiliary power sources.
3. Run the power cable to the transmitter.
4. Connect –dc to terminal 20.
5. Connect +dc to terminal 16.
FIGURE 2-10. Auxiliary Output Control Power Connections
Supply Voltage: 5 to 24 V dc
Maximum Power: 5.75 watts
Switch Closure: transistor, open collector, PNP
Control
Relay
dc–dc+
8712-8712E01B
Fuse
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