Series TFXP
PORTABLE TRANSIT TIME
FLOW METER
Series TFXP Portable Transit Time Flow Meters
feature the world’s most advanced non-invasive
flow measurement technology – providing a
measuring system with superior accuracy,
versatility, ease of installation and dependability.
Although designed primarily for cleaner liquids,
the flow meter can reliably measure liquids
containing moderate amounts of suspended
solids. TFXP is designed for long- or short-term
flow measurement surveys on full-pipe liquid
systems and is ideal for verifying calibration of
permanently mounted flow meters of all types.
The flow meter features a tactile keypad, 24-hour
battery (rechargeable), removable 200,000-event
data logger (optional) and a 128 x 64 pixel,
back-lit graphics display – all integrated into a
rugged, watertight enclosure. TFXP systems
utilize Dynasonics’ proprietary dual time-base
time expansion algorithm, advanced DSP and
digital cross-correlation. TFXP also provides an
optical interface that allows operation of the
Windows
software utility allows simple in-field programming,
calibration and software upgrades.
®
ULTRALINK™ software utility. The
FEATURES
A removable 200,000-event data logger
connection that plugs directly into a PC serial port for very fast
57.6K data uploads.
Integral 24-hour rechargeable battery allows extended
operation when AC power is not available. Both AC and “auto”
socket style power adapters (battery chargers) are included.
Automatic Reynolds Number compensation ensures accurate
measurements through the laminar, transition and turbulent
system flow regions.
TFXP has a flow measuring range that exceeds 4000:1. This
feature allows the instrument to measure normal process
flow rates as well as flows resulting from leaks in piping
and valves.
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has an integral DB-9
The cost-effective and versatile TFXP flow meter
comes complete with all accessories necessary
for measuring piping systems larger than 2" (50 mm).
Non-invasive clamp-on transducers are simple and costefficient to install. Since the transducers do not contact the
liquid, fouling and maintenance are eliminated.
User-configurable rate and totalizer units include: feet,
gallons, ft
m
An integral optical interface and optional Windows
3
3
, million-gal, barrels, acre-feet, lbs, meters, liters,
, million-liters and kg.
®
software
utility provide complete control of system configuration,
calibration and diagnostics – without connecting any wires.
Compartmentalized and padded carrying case keeps the TFXP
meter and all of its accessories organized and protected.
TM
www.dynasonics.com800.535.3569
PRINCIPLES OF OPERATION
Series TFXP Series TFXP Series TFXP
PORTABLE
TRANSIT TIME FLOW METER
TFXP transit time flow meters utilize two transducers,
shown as elements A and B in Figure 1, which function
as both ultrasonic transmitters and receivers. The
transducers are clamped on the outside of a closed
pipe at a specific distance from each other. (The
transducers can be mounted in V-mode as shown in
Figure 1, W-mode where the sound transverses the
pipe four times, or in Z-mode where the transducers are
mounted on opposite sides of the pipe. This selection is
based on pipe and liquid characteristics.) The flow
meter operates by alternately transmitting and receiving
a frequency-modulated burst of sound energy between
the two transducers. The burst is first transmitted in the
direction of fluid flow and then against fluid flow. Since
sound energy in a moving liquid is carried faster when it
travels in the direction of fluid flow (downstream) than it
does when it travels against fluid flow (upstream), a
differential in the times of flight will occur. If the fluid is
not moving, the time of flight difference will be zero and
the flow meter will indicate zero flow.
Figure 1 Top View
Reflect-Mode Configuration
The sound’s time of flight is accurately measured in both
directions and the difference in time of flight is calculated.
The liquid velocity (V) inside the pipe can be related to the
difference in time of flight (dt) through the following
equation:
where K is a constant and D is the distance between
the transducers.
Transit Time
V = K*D*dt
PART NUMBER CONSTRUCTION
D T F X P
Power Supply
A) 115 VAC
B) 230 VAC European
(Two Round Terminals)
C) 100 VAC
G) 230 VAC U.K.
(Three Rectangular
Terminals)
Output 1*
1) 4-20 mA (Std.)
A
Output 2
N) None (Std.)
6) 200,000 event
Data Logger
Installation
N) General Purpose
F) Class I Div. 1,
Groups C & D**
Options
N) None
H) DTTH High Temperature Transducers
2) DTTS Small Pipe Transducers
-pipe sizes ½" (12 mm) to 2" (50 mm)**
* Additional input/output options are available. Consult the local sales rep or the Dynasonics factory.
** Consult factory when ordering.
SPECIFICATIONS
T
RANSMITTER
DESCRIPTION SPECIFICATION
Power Requirements Internal 12 V lead-acid Gel Cell battery provides 24 hrs. of continuous operation @ 20 °C. Charging: Wall mount
power converter. 115 or 230 VAC 50/60 Hz ±15% @ 5 VA max.; 12-15 VDC @ 2.5 VA max.
Velocity -40 to +40 FPS (-12 to +12 MPS)
Inputs/Outputs All output modules are optically isolated from earth and system grounds.
One module and one datalogger may be installed.
Standard Options 4-20 mA 800 Ohms max.; 12-bit resolution; passive or active
Data Logger 200,000 event, 16-bit, integral DB-9 RS232C connection, can be removed and installed
without disconnecting system power, data transfer rates to 57.6K.
Other Options Pulse Output MOFSET, 0.21 Ohms, 100 V max., 0-2,500 Hz
Relay Two separate Form C relays, 200 VAC max. @ 0.5 A resistive
RS232C Data rate to 57.6K
RS485 Supports up to 119 drops
Heatflow Supports two 1000 RTDs, multiplexed, 12-bit resolution
Display 128
8 digit rate, 8 digit totalizer (resettable)
Units
(with Heatflow option: BTUs, calories, Watts, Tons)
Rate Rate time: sec, min, hr, day
Totalizer (NET, FWD, REV or BATCH) gallons, ft
(with Heatflow option: BTUs, calories, Watts, Tons)
Ambient Conditions -40 °F to +185 °F (-40 °C to +85 °C), 0-95% relative humidity, non-condensing
Enclosure NEMA 4X (IP-66) while open, NEMA 6P (IP-68) while closed, ABS with SS hardware.
Electronic enclosure: 14.00W
Accuracy Flow Rate ±0.5% of reading at rates > 1 FPS for field calibrated systems; ±1% of reading at rates > 1 FPS (0.3 MPS)
uncalibrated; 0.1 FPS (0.003 MPS) at rates < 1 FPS (0.3 MPS)
Sensitivity Flow: 0.001 FPS (0.0003 MPS)
Repeatability ±0.01% of reading
Response Time Flow: 0.3-30 seconds, user configured, to 100% of value, step change in flow
Security Keypad lockout, four digit user selected access code
Approvals Ordinary Area
ULTRALINK™ Utility IBM compatible, Windows
x
64 pixel graphics LCD, LED back-lit. Two user selectable font sizes 0.35" (8.9 mm) or 0.2" (5 mm)
User configured - Feet, gallons, ft3, mil-gal, barrels, acre-feet, lbs., meters, liters, m3, mil-liters, kg
3
, barrels, acre-feet, lbs., liters, m3, kg
x
6.06H x 10.56D inches (355.6H x 153.9W x 268.2D mm); 14.8 lbs. (6.7 Kg)
®
95/98/2000/XP operating system
T
RANSDUCER
DESCRIPTION SPECIFICATION
Liquid Types Supported Virtually all non-aerated liquids
Transducer to
Transmitter Distance
Pipe Sizes DTTN: Larger than 2" (50 mm); (Opt.) DTTS: ½" to 2" (12 mm to 50 mm) contact factory
Environment NEMA 6P (IP-68)
Pipe Surface Temperature
DTTS: -40 °F to +185 °F (-40 °C to +85 °C)
Ambient Temperature
Housing Material DTTN: CPVC, Ultem® and Nylon; (Opt.) DTTH: PTFE, Vespel®, Nickel-Plated Brass; DTTS: PVC, Ultem® and Nylon
Installation (Std.) General Purpose; (Opt.) Class I Division 1, Groups C and D
(Std.) 20 feet (6 meters); (Opt.) lengths to 990 feet (300 meters)
DTTN: -40 °F to +250 °F (-40 °C to +121 °C); (Opt.) DTTH: -40 °F to +350 °F (-40 °C to +176 °C)
-40 °F to +185 °F (-40 °C to +85 °C), 0-95% relative humidity, non-condensing
ULTRALINK ™ SOFTWARE
Windows
®
-based Software Utility. A complete meter
U
TILITY
configuration, calibration and troubleshooting tool.
Provides quick access to all configuration parameters with
pop-up windows and pull-down menus.
Assists in selection of proper position and mounting locations
of system transducers.
Selection of Units of Measure and Measuring Range.
Contains a powerful in-field multi-point calibration routine.
Displays error codes and logs reset functions.
Stores meter configurations to a file that can be archived or
used to configure additional meters.
Designed with the user/operator in mind,
configuration and calibration of portable
ultrasonic flow meters have never been as
simple and straight-forward as with Series TFXP.
Integration of your PC, the TFXP flow meter and
ULTRALINK
control. ULTRALINK
™
provide the ultimate in operator
™
is a Windows®
95/98/2000/XP software utility that communicates
with TFXP flow meters through a PC serial
communications port and infrared serial adapter
(Dynasonics P.N. D005-2115-001 shown below).
Since the communication link is infrared light,
the user need only be within 10 feet (3 meters)
of the TFXP meter – interconnection wires are
not necessary.
Note: Series TFXP does not require ULTRALINK
™
or the use of a computer for configuration.
However, the software and a computer are
requirements for altering the TFXP factory
calibration to match existing in-field flow meters.
The Series TFXP includes one infrared serial
adapter. The ULTRALINK
TM
software is available
on the Dynasonics website,
www.dynasonics.com
User-Friendly Operations
Configuration of the TFXP is provided through a simple menu structure.
Selections for units of measure, measuring range, input/output options
and configurations storage are available.
Real-Time Infrared Communications
Configuration and calibration are quick and simple using
ULTRALINK™ and your PC. Dynasonics Infrared Serial
Adapter (included) allows full programming access.
Infrared Serial Adapter
Dynasonics P.N. D005-2115-001 transmits and receives
data from TFXP flow meters from up to 10 feet (3 meters)
away. Simply point the front of the adapter at the TFXP
and start ULTRALINK
™
on your PC.
C
OMPONENTS
All TFXP flow meter systems
come complete with the
necessary components to
measure flow rates in piping
systems larger than 2" (50 mm).
All of these parts are stored
neatly in a compartmentalized
and padded carrying case (see
picture at right). Items included
with the TFXP system: TFXP
meter, ultrasonic transducer set,
20 ft. (6 m) transducer
interconnection cable, 1 tube
of acoustic couplant, mounting
hardware, AC power converter,
auto-style 12 VDC converter,
infrared adapter, 4-20 mA
interface cable and
operations manual.
Series TFXP
METER
D
IMENSIONAL SPECIFICATIONS
MECHANICAL DIMENSIONS: INCHES (MM)
INTERNAL VACUUM/PRESSURE
RELEASE PORT
TRANSDUCER DIMENSIONAL
S
PECIFICATIONSTFXP SYSTEM
Series TFXP
MECHANICAL DIMENSIONS: INCHES (MM)
Pipe
Size
½"
¾"
1"
1-¼"
Pipe
Material
Measuring
Range
10" (250 mm) Scaled Mounting Track
[Optional 16" (405 mm) track also available]
1-½"
2"
* Varies due to U-bolt configuration
DTTS
Pipe ½" to 2"
(12 mm to 50 mm)
B
D
C
DTTS U-Bolt Connections
[ANSI & Copper 2" (50 mm) Models]
D
A
2.375
(60.3)*
2.125
(54.0)*
B
C
TM
Dynasonics and ULTRALINK are trademarks of Racine Federated Inc.
ULTEM is a registered trademark of General Electric Co.
VESPEL is a registered trademark of E.I. duPont de Nemours and Company
WINDOWS is a registered trademark of Microsoft Corp.
FORM TFXP 9/07
Racine Flow Meter Group
8635 Washington Ave. Racine, WI 53406-3738 USA
Tel:
262.639.6770
Fax: 262.639.2267
www.dynasonics.com dynasonics_sales@racinefed.com
800.535.3569 US & Canada
800.732.8354 US & Canada
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