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Apply an even layer of grease, ap-

Transducer Cable

proximately 1/8" [3 mm] thick to the

flat surface of the transducer. Place

the transducer on the prepared area

of the pipe, with the cable pointing

downstream. See Figure 3. Align the

transducer with the pipe, ensuring

that it is parallel with the pipe wall.

Apply only enough pressure to hold

FLOW

the transducer in place. If no reading

is shown, perform a "rub test" by rub-

bing thumb across the dry transducer

head. The zeros should display a low

Figure 3

flow reading. See Troubleshooting

Guide for further recommendations.

Figure 3

F. OBTAINING A READING

Press the ON/OFF key on the keypad. On power up, the UFX performs

internal diagnostics and starts the ultrasonic transmitter. The display

will read Hold for approximately 5 seconds during this time. If the

transducer is properly mounted to a pipe containing flowing liquid with

at least 100 ppm of 100 micron or larger particles or entrained gases,

the display will begin to indicate velocity. The default units of measure

are FPS (feet per second). The response time of the UFX is approxi-

mately 10 seconds to ob-

tain a reading. Adequate

signal strength is obtained

when the OK icon appears

in the upper right corner of

the display. See Figure 4.

Readings taken without

Figure 4

this icon present may be

erroneous.

It is recom-

mended that survey read-

ings of at least 30 seconds be taken to ensure reading stability.

The UFX can be turned off by pressing the ON/OFF key on the keypad,

or the unit will automatically turn off after approximately 3 minutes of

operation.

G. CHANGING UNITS OF MEASURE

Toggle between FPS (feet per second) and MPS (meters per second)

by depressing the FT/SEC M/SEC key on the keypad.