Dynasonics TFX Ultra Transit Time Flow Meters - Manual (Page 40)

Flow Direction
FLOW DIR — Transducer Flow Direction Control (Choice)
FORWARD
REVERSE
Allows the change of the direction the meter assumes is forward. When mounting meters with integral transducers this
feature allows upstream and downstream transducers to be “electronically” reversed making upside down mounting of the
display unnecessary.
Transducer Frequency
XDCR HZ — Transducer Transmission Frequency (Choice)
500 kHZ (500 Kilohertz)
1 MHZ (1 Megahertz)
2 MHZ (2 Megahertz)
Transducer transmission frequencies are specific to the type of transducer and the size of pipe. In general the DTTL 500 kHz
transducers are used for pipes greater than 24 inches (600 mm). DTTN and DTTH, 1 MHz transducers, are for intermediate
sized pipes between 2 inches (50 mm) and 24 inches (600 mm). The DTTS and DTTC, 2 MHz transducers, are for pipe sizes
between 1/2 inch (13 mm) and 2 inches (50 mm)
Pipe Outside Diameter
PIPE OD — Pipe Outside Diameter Entry (Value)
ENGLSH (Inches)
METRIC (Millimeters)
Enter the pipe outside diameter in inches if ENGLSH was selected as UNITS; in millimeters if METRIC was selected.
OTE:
N
Charts listing popular pipe sizes have been included in the Appendix of this manual. Correct entries for pipe O.D. and
pipe wall thickness are critical to obtaining accurate flow measurement readings.
Pipe Wall Thickness
PIPE WT — Pipe Wall Thickness Entry (Value)
ENGLSH (Inches)
METRIC (Millimeters)
Enter the pipe wall thickness in inches if ENGLSH was selected as UNITS; in millimeters if METRIC was selected.
OTE:
N Charts listing popular pipe sizes have been included in the APPENDIX of this manual. Correct entries for pipe O.D. and
pipe wall thickness are critical to obtaining accurate flow measurement readings.
Pipe Material
PIPE MAT — Pipe Material Selection (Choice)
Acrylic ACRYLIC Glass Pyrex PYREX St Steel 304/316 SS 316
Aluminum ALUMINUM Nylon NYLON St Steel 410 SS 410
Brass (Naval) BRASS HD Polyethylene HDPE St Steel 430 SS 430
Carbon Steel CARB ST LD Polyethylene LDPE PFA PFA
Cast Iron CAST IRN Polypropylene POLYPRO Titanium TITANIUM
Copper COPPER PVC CPVC PVC/CPVC Asbestos ASBESTOS
Ductile Iron DCTL IRN PVDF PVDF Other OTHER
Fiberglass-Epoxy FBRGLASS St Steel 302/303 SS 303
This list is provided as an example. Additional pipe materials are added periodically. Select the appropriate pipe material from
the list or select OTHER if the material is not listed.
Pipe Sound Speed
PIPE SS — Speed of Sound in the Pipe Material (Value)
ENGLSH (Feet per Second)
METRIC (Meters per Second)
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Page 40 March 2014