Dynasonics DDFXD Doppler Ultrasonic Flow Meter User Manual
Page 29
06-DPP-UM-00147 02/12
29
DC POWER SUPPLY CONNECTIONS
The DFX may be operated from a 12-28 VDC source, as long as the source is capable of supplying 7 Watts.
12 VDC Supply @ 600 mA minimum
24 VDC Supply @ 300 mA minimum
1) Verify that the jumpers are properly placed. See the wiring diagram located on the inside door of
the DFX enclosure or see Figure 3.4. The jumpers at JP3 should not be present and the jumpers at
JP1 and JP2 will be in place.
2) Connect the DC power source as illustrated in the schematic in Figure 3.6. Wire up to 14 AWG can
be accommodated in the DFX terminal blocks.
a) A switch or circuit breaker is required in the installation.
b) The switch or circuit breaker must be in close proximity of the DFX and within easy reach
of the operator.
c) The switch or circuit breaker must be marked as the disconnect device for the DFX.
J3
J4
J2
JP1
DC Power
Connections
12 to 28 VDC
7 Watts Maximum
FIGURE 3.6 - DC POWER CONNECTION