5707070-A Installation and Operation 2-11
Sono-Trak™ Doppler Ultrasonic Flow Meter
Figure 2-5. Clamp-on transducers secured with a bungee and chain
To Connect the Transducers to the Electronics Enclosure:
1. Ensure AC or battery (DC) input power is turned off.
2. Connect the transducer cable to the electronics enclosure by routing the cable
through the appropriate opening (see “Bottom view of the electronics enclosure”
on page 4-7 for location of cable access openings). Use a cable gland and a cable
backing nut to securely fasten the trasnducer cable to the electronics enclosure.
3. Connect the transducer wires to the processor board as shown in Figure 2-6 on
page 2-12 for correct placement. The transducer 4-wire connection is as follows:
4
White = Digital signal output (0 V to 12 V pulse train)
4
Green = Echo good logic signal (when used)
4
Red = 12 VDC to 15 VDC at 100 mA nominal power in
4
Black = Ground / Common
Note: Do not connect bare shield wire to black (common / ground)
Transducers
