Dynasonics DDFXD Doppler Ultrasonic Flow Meter - Manual (Page 25)

06-DPP-UM-00147 02/12 25
TRANSDUCER WIRING CONNECTIONS
To access terminal strips for electronic connectors, loosen the two screws in the enclosure door and open
the door.
1) Guide the transducer terminations through the transmitter conduit hole located in the bottom-
center of the enclosure. Secure the transducer cable with the supplied conduit nut (See Figure
3.2).
+
C3
J3
J4
J2
JP1
Transducer
Connections
FIGURE 3.2 - TRANSDUCER CABLE INSTALLATION
2) The terminals within the DFX are of a removable type – they can be unplugged, wired and then
plugged back in. Connect the appropriate wires to J4 at the corresponding screw terminals in the
transmitter. See Figure 3.3 or the Wiring Diagram located on the inner door of the transmitter.
NOTE: The transducer cable carries low level high frequency signals. While transducer cable extension is not generally recom-
mended, if additional transducer cable length is required, utilize cable and connectors of the correct type and impedance. In many
cases, especially if a splice my be exposed to water or other liquids, it may be more effective to replace the entire cable. Transducers
use RG59 ,75 ohm coaxial cable or Twinax (Belden #9463) or (Belden # 9463DB) 78 Ohm two conductor cable. Cables to 990 feet
(300 meters) are available.