BE6000 Ultrasonic Flow Meter O&M Manual
Flomotion Systems, Inc. ~ FlomotionSystems.com
15
(1) Signal Strength & Quality (M90)
The signal strength is indicated by a number between 0.00 ~ 9.99. 0.00 means no signal received and 99.9
means the signal strength is at the maximum. It should be larger than 60.0 for normal operation. The signal
quality Q is indicated by a number between 0.00 ~ 9.99. 0.00 indicates that the signal is at its lowest level
and 9.99 the highest. It should be at least 60.00 for normal operation.
(2) Total Travel Time and Time Difference (M93)
The measurement is taken based on the total travel time and the time difference. They are also indicative of
the condition of the installation of the transducers. Under normal condition, the time difference should be
smaller than 10%. If the pipe size is very small or the flow velocity is very low, the wave may be a little
bigger. When the wave is too big, so are the flow and the velocity. This is said to be of bad signal quality,
which may result from bad pipe condition, incorrect installation of the transducers or incorrect parameters
set.
(3) Time Rate (TOM/TOS* 100, M91)
This is used to confirm whether the transducers are located with the correct interval. This should indicate 100
±3%.
