Dynasonics DDFXD Doppler Ultrasonic Flow Meter User Manual
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06-DPP-UM-00147 02/12
AC POWER SUPPLY CONNECTIONS
DANGER: Line voltages may be present within the enclosure. There is a risk of shock, sparks
and death if this product is handled in an unsafe way. Service should only be done by quali-
fied personnel.
1) Verify that the jumpers at JP3 are properly oriented for the power supply. See Figure 3.4. Verify
that the jumpers at JP1 and JP2 are not present.
2) Connect L1, L2 and EARTH to the terminals referenced in Figure 3.4. Phase and neutral connec-
tions to L1 and L2 are not polarized. Do not operate without an earth ground connection.
3) See Figure 3.5 for AC connection schematic. Wire gauges 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
AC Power
Connections
50/60 Hz
17 Watts Maximum
FIGURE 3.5 - DFX AC POWER CONNECTION