Wiring; Typical Applications/Wiring Diagrams - Omega DPF500 Series User Manual

2.4 Wiring

Several typical applications of the DPF500 are shown below. Please observe that the various pulse inputs and power
options may be intermixed in many ways to solve common applications. The isolated pulse output may be freely
used so long as proper polarity is observed.
Caution: When 4-20 mA loop option is provided, the power wiring to the loop power option should always be to
terminals (+) 12 and (-) 11. Accidental wiring to (+) 12 and (-)6 should be avoided since excessive current
fl ow may result.
Caution: The magnetic pickup input and contact closure input require isolated sensors for proper operation. Ac-
cidental connections to earth may result in erroneous operation of the analog output and/or excessive
current fl ow.
Caution: Accidental connections from circuit common (3 or 6) to earth or terminal (11) may result in erroneous op-
eration of the analog output and/or excessive current fl ow.
2.5 Typical Applications / Wiring Diagrams
CONTACT INPUT / PULSE OUTPUT / BATTERY POWERED
4 1
123456
DPF76 Totalizer
4-20mA (+)/DC In (+) 12
4-20mA (-) 11
Opto Input (+) 10
Opto Input (-) 9
Opto Out (+) 8
Opto Out (-) 7
MAG INPUT / DPF5-BP POWERED
DPF5-BP
4-20mA (+)/DC In (+) 12
4-20mA (-) 11
Opto Input (+) 10
Opto Input (-) 9
Opto Out (+) 8
Opto Out (-) 7
Flowmeter with
Switch Closure Output
1 Mag Input 1
2 Mag Input 2
3 Shield/GND
4 Reset Input
5 Contact Input
6 Common/ DC In (-)
DPF5-BP PLUG-IN
CONNECTOR
Remote
Reset Switch
1 Mag Input 1
2 Mag Input 2
3 Shield/GND
4 Reset Input
Turbine Meter with
5 Contact Input Mag Pickup
6 Common/ DC In (-)
ISOLATED INPUT / 4-20mA LOOP POWERED
To Shiel d
Pin 3
- +
24 VDC
Power
Suppl y
PSU-24B
Flowmeter
with DC Pulse Output
4-20mA (+)/DC In (+) 12
NOTE: Separate power supplies
are recommended to isolate output
from input.
If isolation is not a concern, use a
single power suppl y
MAG INPUT / DC POWERED
+
15 VDC
Power
Suppl y
-
FPW-15
4-20mA (+)/DC In (+) 12 1 Mag Input 1
2 Mag Input 2
4-20mA (-) 11
Opto Input (+) 10 3 Shield/GND
Opto Input (-) 9 4 Reset Input
Opto Out (+) 8 5 Contact Input
Opto Out (-) 7 6 Common/ DC In (-)
4
+
Strip Char t
Recorder
+
-
24 VDC
+
Power
Suppl y
PSU-24B
1 Mag Input 1
4-20mA (-) 11 2 Mag Input 2
Opto Input (+) 10 3 Shield/GND
4 Reset Input
Opto Input (-) 9
Opto Out (+) 8 5 Contact Input
Opto Out (-) 7 6 Common/ DC In (-)
Remote
Reset Switch
Turbine Meter with
Mag Pickup
-
-