4
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.
2.4 Wiring
2.5 Typical Applications / Wiring Diagrams
+
+
-
1
Mag Input 1
2
Mag Input 2
3
Shield/GND
4
Reset Input
5
Contact Input
6
Common/ DC In (-)
6
5
4
3
2
1
-
To Shield
Pin 3
Flowmeter
with DC Pulse Output
+
-
Strip Chart
Recorder
24 VDC
Power
Supply
+
-
ISOLATED INPUT / 4-20mA LOOP POWERED
NOTE:
Separate power supplies
are recommended to isolate output
from input.
If isolation is not a concern, use a
single power supply
4-20mA (+)/DC In (+)
12
4-20mA (-)
11
Opto Input (+)
10
Opto Input (-)
9
Opto Out (+)
8
Opto Out (-)
7
7
8
9
10
11
12
24 VDC
Power
Supply
PSU-24B
PSU-24B
Remote
Reset Switch
1 Mag Input 1
2 Mag Input 2
3 Shield/GND
4 Reset Input
5 Contact Input
6 Common/ DC In (-)
Turbine Meter with
Mag Pickup
6
5
4
3
2
1
MAG INPUT / DPF5-BP POWERED
4-20mA (+)/DC In (+) 12
4-20mA (-) 11
Opto Input (+) 10
Opto Input (-) 9
Opto Out (+) 8
Opto Out (-) 7
7
8
9
10
11
12
DPF5-BP PLUG-IN
CONNECTOR
DPF5-BP
Remote
Reset Switch
15 VDC
Power
Supply
+
-
1
Mag Input 1
2
Mag Input 2
3
Shield/GND
4
Reset Input
5
Contact Input
6
Common/ DC In (-)
Turbine Meter with
Mag Pickup
6
5
4
3
2
1
MAG INPUT / DC POWERED
4-20mA (+)/DC In (+)
12
4-20mA (-)
11
Opto Input (+)
10
Opto Input (-)
9
Opto Out (+)
8
Opto Out (-)
7
7
8
9
10
11
12
FPW-15
Flowmeter with
Switch Closure Output
4-20mA (+)/DC In (+)
12
4-20mA (-)
11
Opto Input (+)
10
Opto Input (-)
9
Opto Out (+)
8
Opto Out (-)
7
1
Mag Input 1
2
Mag Input 2
3
Shield/GND
4
Reset Input
5
Contact Input
6
Common/ DC In (-)
6
5
4
3
2
1
CONTACT INPUT / PULSE OUTPUT / BATTERY POWERED
DPF76 Totalizer
123456
4 1
7
8
9
10
11
12
