FlowLine DataView LI55 Series Quick Start Manual page 12

DataView™ LI55 Level Controller
Quick Start
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Repeater Output Connections
The repeater may be used to output the 4-20 mA sensor signal to other devices
through the connector terminals labeled MA OUT. The 4-20 mA output may be
powered internally or from an external power supply.
Internal Power - DataView™ has an internal 24 VDC (40 mA) power supply that
can be used to power the repeater loop per the below illustration on the left.
This circuit provides the excited 4-20 mA signal from the controller to any
device that accepts a 4-20 mA signal.
External Power - This circuit requires a separate VDC power supply to power
the repeater loop per the below illustration on the right. This circuit provides a
passive 4-20 mA signal from the controller to any device that accepts a 4-20
mA signal. Note: You will not receive a 4-20 mA signal until the external power
supply is added to the loop.
Internal Power External Power
Analog Output / Transmitter Power Supply
The internal 24 VDC power supply powering the analog output may be used to
power other devices, if the analog output is not available. The "I+" terminal is
the +24 V and the "R" terminal is the return. This power supply is capable of
sourcing up to 40 mA.
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QS301033 Rev C1