Dynasonics TFXP Series Transit Time Ultrasonic Flow Meter - Manual (Page 39)

Rev. 5/09
-3.1- TFXP
NOTE: The TFX flow meter system requires a full pipe of liquid
before a successful startup can be completed. Do not attempt to
make adjustments or change configurations until a full pipe is
verified.
NOTE: If Sonotemp
®
silicone grease was utilized as a couplant, a
curing time is not required. However, if Dow 732 or another
permanent RTV was used, the adhesive must fully cure before
power is applied to the instrument.
Procedure:
1. Verify that all wiring is properly connected and routed as
described previously in this manual.
2. Verify that the transducers are properly mounted as described in
Part 2 of this manual.
3. Press the ON button to the right of the keypad. The TFX display
backlighting will illuminate along with the “On” LED and the
software version number will appear on the display.
4. Confirm that Signal Strength is greater than 5%. If it is not, verify
that proper transducer mounting methods and liquid/pipe
characteristics have been entered. The pipe must be full of
liquid in order to make this measurement.
5. Once the meter is properly operating (proper signal strength has
been achieved), refer to the later portions of this manual section
for additional programming features.
PART 3 - STARTUP AND CONFIGURATION
Before
Starting the
Instrument
Instrument
Startup
The display backlighting illuminates for approximately 30 seconds
and automatically turns off to preserve battery power. To re-
illuminate the display, press any key on the keyboard.
Adjustments to the backlighting duration can be made in the
Display Menu. Refer to page 3.40
for details.