Instruction Manual

DataView™ LI55 Level Controller Instruction Manual
24 | Page
F4 Digital Input Connections
A digital input, F4, is standard on the meter. This digital input is
connected with a normally open contact across F4 and COM, or with an
active low signal applied to F4.
Figure 15. F4 Digital Input Connections
4-20 mA Output Connections
Connections for the 4-20 mA transmitter output are made to the
connector terminals labeled MA OUT. The 4-20 mA output may be
powered internally or from an external power supply.
12-35 VDC
Power
Supply
+
4-20 mA
Input Meter
-
+
RI- I+
132
RELAY1
321
24 V
-
4-20 mA Input
Remote Display,
Chart Recorder, Etc.
-
+
RI- I+
MA OUT
132
RELAY1
321
24 V
MA OUT
Figure 16. 4-20 mA Output Connections
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 used. The I+
terminal is the +24 V and the R terminal is the return.