DPM-500 Analog Input Meter Instruction Manual
14
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 14. 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.
Figure 15. 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.
12-35 VDC
Power
Supply
+
4-20 mA
Input Meter
-
+
R
I-
I+
1
3
2
RELAY1
3
2
1
24 V
-
4-20 mA Input
Remote Display,
Chart Recorder, Etc.
-
+
R
I-
I+
MA OUT
1
3
2
RELAY1
3
2
1
24 V
MA OUT
