User Manual
50 06-DPP-UM-00147 02/12
PART 5 STARTUP AND TROUBLESHOOTING
DFX STARTUP REQUIREMENTS
NOTE: The DFX ow meter system requires a full pipe of owing liquid before a successful startup evaluation can be completed.
Do not attempt to make adjustments or make Manual conguration changes until a full pipe of owing liquid is veried.
NOTE: If an RTV sealant was utilized to couple the transducers to the pipe, the sealant must fully cure before power is applied to
the instrument. Most RTVs require 24 hours to cure satisfactorily. It is very important that the transducers are not moved during
the curing process – air bubbles can form between the transducer and the pipe wall and inuence performance. If silicone grease
was utilized as a couplant, the curing time is not required.
PROCEDURE:
1) Verify that the DT9 or DP7 transducer has been properly installed and wired – See Part 2.
2) Verify that the DFX power supply jumper settings are properly congured for the power supply
that will be utilized – See Part 3.
3) Verify that the DFX is properly programmed – See Part 4.
4) Apply power.
5) On initial power-up, the DFX microprocessor conducts a series of self-diagnostic tests, base-line
measurements and begins to buer liquid velocity data. During this start-up, approximately 30
seconds, ow rate readings and outputs will be inhibited.
6) After the start-up routine has completed running, the meter will begin to display ow rate and/or
total as congured.
7) If an ERROR appears on the DFX lower display, pleaser refer to the following Troubleshooting
pages for resolution.