Dynasonics D7700 Series Insertion Doppler Ultrasonic Flow Meter - Manual (Page 3)

Rev. 12/97 -2- D77X
Insertion Depth =
(pipe I.D. inches) X 0.125 + 0.67 inches
or
(pipe I.D. mm) X 0.125 + 17 mm
B. Secure the probe insertion distance using the upper
and lower brass jam nuts located on the threaded
rods.
C. Loosen the set screw located in the probe retaining
collar with the enclosed allen wrench.
D. Rotate the probe body till the arrowhead, located
on the top of the probe, is parallel with the pipe and
points down stream in the direction of flow.
E. Lock the probe rotation with the set screw in the
retaining collar.
F. Route the transducer cable back to the transmitter,
avoiding locations near high voltage supply wires.
Transducer connections are made through the left
conduit hole in the bottom of the transmitter.
3. TRANSDUCER CONNECTION
A. DO NOT attempt to connect additional cable to the
factory supplied transducers.
B. Connect the transducer spade terminals to the
XDCR terminal block located on the lower left
corner of the main PCB.
4. INITIAL SETTINGS AND POWER UP
A. Route a stable, grounded power supply to the
transmitter. Power wiring is made through the right
conduit hole.
B. Connect Power to the upper right terminal block as
appropriate. Apply power.
C. If the D77 system is installed in a pipe full of flowing
liquid, the LED indicator D21 will begin to flash
steadily. If it does not, adjust R10 (GAIN) CW until
the LED just begins to flash.
Startup
Connections
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