Badger Meter Dynasonics TFX-500w, User Manual

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Setup > Meter > Spacing
This menu is available only for adjustable spacing transducers, not fixed spacing An asterisk (*) indicates the default
Spacing Submenu Options/Descriptions
MODE *SPACING CALCULATED
CALCULATED
The spacing required between two transducers based on the pipe parameters Take this measurement
between the lines scribed into the side of the transducers of use the scale on the rails, if used See the
transducer user manual
Numeric display 0…300 units in or mm based on PIPE SIZE selection *0 954 in
Setup > Meter > Flow Setup
An asterisk (*) indicates the parameter default
Flow Setup Submenus Options/Descriptions
DIRECTION
*FORWARD
REVERSE
BIDIRECTIONAL
*ENABLED
DISABLED
LOW FLOW CUTOFF Numeric entry Units and decimals are based on FLOW RATE UNITS Zero and positive values *0 0
SIGNAL CUTOFF *30%
SIGNAL HIGH *90%
MINIMUM FLOW -100,000
MAXIMUM FLOW 100,000
DAMPING *40 seconds
For detailed information on these parameters,
see "Filter Parameters" following this table
SENSITIVITY *60%
HYSTERESIS *5%
BAD DATA REJECTION *3
FILTER METHOD *Adaptive
WAVE
• *AUTO automatically selects waveform based on flow speed and signal quality
• SIN CARROT TOP is best for low speed flow
• BEST BARKER is best for high speed flow
Filter Parameters
Filter Method (Default: Adaptive)
The TFX-500w flow meter offers three levels of signal filtering:
• None imposes no filtering on the signal from the transducers
• Simple with Rejection uses Damping and Bad Data Rejection to filter the flow data
• *Adaptive filtering allows the meter’s software routines to alter the filtering, depending on the variability of the
transducer’s signal The Adaptive filter uses a combination of Damping , Bad Data Rejection , Sensitivity and Hysteresis to
modify the flow input data
Damping (Range 0…100 Seconds; Default: 40 Seconds)
Damping is the approximate amount of time the filtering routines use to attain a 99% stable rate value Generally, the higher
the damping value, the more stable the rate readings are—but at the expense of response time
Sensitivity (Range 0…100%; Default: 60%)
Sensitivity determines how fast the adaptive filtering responds to a change in rate Increasing the sensitivity decreases the
filtering, which allows the display to respond to rate changes more rapidly
Hysteresis (Range 0…25%; Default: 5%)
Hysteresis creates a window around the average flow measurement reading, defining the limits at which the automatic
damping increases occur If the rate varies within the hysteresis window, greater damping occurs up to the maximum values
set by the flow filter Damping entry The filter also establishes a flow rate window where measurements outside of the
window are captured by the Bad Data Rejection window Enter the value as a percentage of actual flow rate
For instance, a Hysteresis setting of 5% allows the flow to vary ± 5% from the currently established flow rate without
automatically decreasing the value of the Damping
Parameter Descriptions by Menu
Page 21 May 2021 TTM-UM-02537-EN-06