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Section 2
Page 51
Wiring the In-Pipe Ultrasonic Sensor
2.17 Wiring the In-Pipe Ultrasonic Sensor
The in-pipe ultrasonic sensor is wired to the 980 Flow Meter the same way as
the ultrasonic downlook. Refer to section 2.16 Wiring the Downlook Ultrasonic
Sensor on page 49
Only install an ultrasonic downlook or an in-pipe ultrasonic sensor to the
instrument, they cannot be connected at the same time.
Figure 24 In-Pipe Ultrasonic Sensor
2.18 Wiring the Velocity-Only Sensor
2.18.1 Bare Lead Sensor Cables
Note: Bare lead connections and
Quick-connections cannot be made
at the same time.
Bare lead sensor cables are used when the cable will be run through a
conduit. When conduit is used, it is recommended that the conduit be 1 in.
or larger.
Wiring Procedure
1. Disconnect all power to the 980. Refer to the Wiring Safety Information on
page 31.
2. Use a large flat-blade screwdriver to loosen the two screws securing the
980 cover. Open the cover.
3. Attach a NEMA-approved conduit or compression fitting to one of the
½ in. openings on the bottom of the instrument, and route the velocity-
only cable wires through the opening