• “Quick-Start Operating Overview” on page 6 is intended to help you get the TFXL meter up and running quickly. Refer to
the detailed instructions if you require additional information.
• The remaining chapters provide a detailed description of all software settings and hardware installation guidance.
Read this manual carefully before attempting any installation or operation. Keep the manual accessible for future reference.
UNPACKING AND INSPECTION
Upon opening the shipping container, visually inspect the product and applicable accessories for any physical damage such
as scratches, loose or broken parts, or any other sign of damage that may have occurred during shipment.
OTE:NIf damage is found, request an inspection by the carrier’s agent within 48 hours of delivery and file a claim with the
carrier. A claim for equipment damage in transit is the sole responsibility of the purchaser.
SAFETY
Terminology and Symbols
Indicates a hazardous situation, which, if not avoided, is estimated to be capable of causing death or serious
personal injury.
Indicates a hazardous situation, which, if not avoided, could result in severe personal injury or death.
Indicates a hazardous situation, which, if not avoided, is estimated to be capable of causing minor or moderate
personal injury or damage to property.
Considerations
The installation of the TFXL meter must comply with all applicable federal, state, and local rules, regulations, and codes.
EXPLOSION HAZARD - SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION 2.
AVERTISSMENT
RISQUE D’EXPLOSION - LA SUBSTITUTION DE COMPOSANTS PEUT RENDRE CEMATÉRIEL INACCCEPTABLE POUR LES
EMPLACEMENTS DE CLASSE I, DIVISION 2.
DO NOT CONNECT OR DISCONNECT EITHER POWER OR OUTPUTS UNLESS THE AREA IS KNOWN TO BE NONHAZARDOUS.
AVERTISSMENT
RISQUE D’EXPLOSION. NE PAS DÉBRANCHER TANT QUE LE CIRCUIT EST SOUSTENSION, À MOINS QU’LL NE S’AGISSE
D’UN EMPLACEMENT NON DANGEREUX.
MPORTANTI
Not following instructions properly may impair safety of equipment and/or personnel.
MPORTANTI
Must be operated by a Class 2 supply suitable for the location.
Page 5 April 2016TTM-UM-00369-EN-03
Quick-Start Operating Overview
QUICKSTART OPERATING OVERVIEW
Items Required for Basic Installation and Conguration
• TFXL meter
• Transducers (remote-mount versions sold separately)
• Mounting straps (for remote-mount versions)
• Acoustic couplant
• Power source
• UltraLink Software
• Configuration cable kit P/N D010-0204-001
• USB-to-DB9 converter P/N D005-2116-004 (required if PC does not have a serial port)
• Phillips screwdriver
• Flathead screwdrivers (large and small)
• 5/16 in. nut driver (optional, for remote-mount versions)
Follow these instructions to get the system up and running quickly. Refer to the detailed instructions if you require
additional information.
OTE:NThe following steps require information supplied by the transmitter itself so it will be necessary to supply power
to the transmitter, at least temporarily, and connect to a computer using the UltraLink® software utility to obtain
setup information.
Transducer Location
1. Select a mounting location on the piping system with a minimum of ten pipe diameters (10 × the pipe inside diameter) of
straight pipe upstream and ve straight diameters downstream. See Table 1 on page 16 for additional congurations.
2. If the application requires DTTR, DTTN or DTTH transducers, select a mounting method for the transducers based on pipe
size and liquid characteristics. See Table 2 on page 17. The three transducer mounting congurations are shown in
Figure 4. See “Transducer Mounting Configurations” on page 20 for mounting procedures.
OTE:NAll DTTS and DTTC transducers use V–Mount configuration.
Power Connections
Power for the TFXL meter flow meter is obtained from a direct current (DC) power source.
1. Verify that the power source is capable of supplying 12…28V DC at a minimum of 250 milliamps.
2. With the power from the DC power source disabled or disconnected, connect the positive supply wire and ground to the
appropriate eld wiring terminals in the ow meter. See Figure 1. A wiring diagram decal is on the inside cover of the ow
meter enclosure.
DC Ground
12 . . . 28V DC
DC Ground
12 . . . 28V DC
PIC16F628
O
N
1
Figure 1: Power connections
Transducer Connections for Remote Mount Transducers
1. Guide the transducer terminations through the transmitter conduit hole on the bottom-left of the enclosure using a
sealed cord grip or NEMA 4 conduit connection. Secure the transducer cable with the supplied conduit nut (if exible
conduit was ordered with the transducer).
Page 6 April 2016TTM-UM-00369-EN-03
Quick-Start Operating Overview
2. The remote mount transducers use an add-in connection board on the left side of the meter below the LCD (TFXL meter
2 version). The terminals within the TFXL meter are of a screw-down barrier terminal type. Connect the wires at the
corresponding screw terminals in the transmitter. Observe upstream and downstream orientation and wire polarity. See
Figure 2 on page 7.
Upstream
Transducer
Up Blue/Red
Up White/Black
Down White/Black
Down Blue/Red
Downstream
Transducer
Figure 2: Remote mount connections
Initial Settings and Powerup
1. Apply power to the transmitter.
2. Enter the following data into the TFXL meter via the UltraLink software utility.
1Transducer mounting method7Pipe liner thickness
2Pipe O.D. (Outside Diameter)8Pipe liner material
3Pipe wall thickness9Fluid type
4Pipe material10Fluid sound speed*
5Pipe sound speed*11Fluid viscosity*
6Pipe relative roughness*12Fluid specific gravity*
OTE:N* Nominal values for these parameters are included within the transmitter operating system. The nominal values may
be used as they appear or may be modified if the exact system values are known.
3. Record the value calculated and displayed as transducer spacing.
Page 7 April 2016TTM-UM-00369-EN-03
Quick-Start Operating Overview
Pipe Preparation and Transducer Mounting
DTTR, DTTN and DTTH Transducers
1. Place the transmitter in signal strength measuring mode.
This value is available on the data display of the UltraLink
software utility.
2. The pipe surface, where the transducers are to be mounted,
must be clean and dry. Remove scale, rust or loose paint to
ensure satisfactory acoustic conduction. Wire brushing the
rough surfaces of pipes to smooth bare metal may also be
useful. Plastic pipes do not require preparation other than
cleaning. On horizontal pipe, choose a mounting location within
approximately 45 degrees of the side of the pipe.
See Figure 5 on page 9. Locate the ow meter so that the
pipe will be completely full of liquid when ow is occurring in
the pipe. Avoid mounting on vertical pipes where the ow is
moving in a downward direction.
3. Apply a single 1/2 inch (12 mm) bead of acoustic couplant
grease to the upstream transducer and secure it to the pipe with
a mounting strap.
4. Apply acoustic couplant grease to the downstream transducer and press it onto the pipe using hand pressure at the lineal
distance calculated in “Transducer Location” on page 6.
5. Space the transducers according to the recommended values from the UltraLink software utility. Secure the transducers
with the mounting straps at these locations.
Downstream+
DownstreamUpstreamUpstream+
Figure 3: Transducer connections
TOP VIEW
OF PIPE
TOP VIEW
OF PIPE
TOP VIEW
OF PIPE
W-MountV-MountZ-Mount
Figure 4: Transducer mounting configurations
Page 8 April 2016TTM-UM-00369-EN-03
Quick-Start Operating Overview
TOP OF
PIPE
45°
YES
45°
FLOW METER
MOUNTING ORIENTATION
DTTS and DTTC TRANSDUCERS
45°
YES
45°
TOP OF
PIPE
45°
YES
45°
FLOW METER
MOUNTING ORIENTATION
DTTR, DTTN and DTTH TRANSDUCERS
45°
45°
2” DTTS and DTTC TRANSDUCERS
45°
YES
45°
TOP OF
PIPE
YES
FLOW METER
MOUNTING ORIENTATION
45°
YES
45°
Figure 5: Transducer mounting orientations
DTTS and DTTC Transducers
1. Place the transmitter in signal strength measuring mode. This value is available on the transmitter’s display Service Menu or
in the data display of the UltraLink software utility.
2. The pipe surface, where the transducers are to be mounted, must be clean and dry. Remove scale, rust or loose paint
to provide satisfactory acoustic conduction. Wire brushing the rough surfaces of pipes to smooth bare metal may also
be useful. Plastic pipes do not require preparation other than cleaning. On horizontal pipe, choose a mounting location
within approximately 45 degrees of the side of the pipe. See Figure 5 on page 9. Locate the ow meter so that the pipe
will be completely full of liquid when ow is occurring in the pipe. Avoid mounting on vertical pipes where the ow is
moving in a downward direction.
3. Apply a single 1/2 inch (12 mm) bead of acoustic couplant grease to the top half of the transducer and secure it to the pipe
with the bottom half or with U-bolts.
4. Tighten the nuts so the acoustic coupling grease begins to ow out from the edges of the transducer and from the gap
between the transducer and the pipe.
MPORTANTI
Do not overtighten. Overtightening will not improve performance and may damage the transducer.
5. Verify that signal strength is greater than 5.0.
6. Input the units of measure and the I/O data.
Page 9 April 2016TTM-UM-00369-EN-03
Introduction
INTRODUCTION
The TFXL meter is designed to measure the fluid velocity of liquid within a closed conduit. The transducers are a noncontacting, clamp-on or clamp-around type, which provide the benefits of non-fouling operation and ease of installation.
The TFXL meter family of transit time transmitters uses two transducers that 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-Mount where the sound transverses the pipe two times, W-Mount where the sound
transverses the pipe four times, or in Z-Mount where the sound crosses the pipe once. The selection of how transducers are
mounted on opposite sides of the pipe and method is based on pipe and liquid characteristics, which both have an effect
on how much signal is generated. The flow meter operates by alternately transmitting and receiving a frequency modulated
burst of sound energy between the two transducers and measuring the time interval that it takes for sound to travel between
the two transducers. The difference in the time interval measured is directly related to the velocity of the liquid in the pipe.
Application Versatility
The TFXL meter can be successfully applied on a wide range of metering applications. The simple-to-program transmitter
allows the standard product to be used on pipe sizes ranging from 1/2 …100 inches (12…2540 mm)*. A variety of liquid
applications can be accommodated:
Because the transducers are non-contacting and have no moving parts, the transmitter is not affected by system pressure,
fouling or wear.
Temperature Ratings for Transducers
Because the transducers are non-contacting and have no moving parts, the flow meter is not affected by system pressure,
fouling or wear. Temperature ratings for each transducer are listed below.
TransducerTemperature Rating
DTTR–40…250° F (–40…121° C)
DTTC–40…194° F (–40…90° C)
DTTN–40…194° F (–40…90° C)
DTTH–40…350° F (–40…177° C)
DTTS–40…140° F (–40…60° C)
User Safety
The TFXL meter uses a low voltage DC power source that provides electrical safety for the user. Remove the cover to access to
the meter connections and the computer interface connection.
DANGER
THE POWER SUPPLY BOARD CAN HAVE LINE VOLTAGES APPLIED TO IT, SO DISCONNECT ELECTRICAL POWER BEFORE
OPENING THE INSTRUMENT ENCLOSURE. WIRING SHOULD ALWAYS CONFORM TO LOCAL CODES AND THE NATIONAL
ELECTRICAL CODE.
Data Integrity
Non-volatile flash memory retains all user-entered configuration values in memory indefinitely, even if power is lost or
turned off.
Product Identication
The serial number and complete model number of the transmitter are located on the top outside surface of the transmitter
body. Should technical assistance be required, please provide our customer service department with this information.
Page 10 April 2016TTM-UM-00369-EN-03
Transmitter Installation
TRANSMITTER INSTALLATION
Transmitter Location
Mount the enclosure in an area that is convenient for servicing, calibration and observation of the LCD readout (if equipped).
1. Locate the transmitter within the length of transducer cables supplied. If this is not possible, exchange the cable for one
that is of proper length.
2. Mount the transmitter in a location:
◊ Where little vibration exists.
◊ That is protected from corrosive fluids.
◊ That is within the transmitters ambient temperature limits –40…185° F (–40…85° C).
◊ That is out of direct sunlight. Direct sunlight may increase transmitter temperature to above the maximum limit.
3. See Figure 6 for enclosure and mounting dimension details. Allow enough room for door swing, maintenance and conduit
entrances.
4. Secure the enclosure to a at surface with two fasteners.
5. Feed the cables through the conduit holes in the enclosure. Use plugs to seal any unused holes.
OTE:NUse NEMA 4 (IP-65) rated fittings/plugs to maintain the watertight integrity of the enclosure. Generally, the right side
conduit hole (viewed from front) is used for power, the bottom conduit hole(s) for transducer connections.
in. (mm)E in. (mm)F in. (mm)G in. (mm)H in. (mm)I in. (mm)
Figure 6: Transmitter enclosure dimensions
F
H
G
K
A
J
Two mounting holes
I
C
D
Conduit hole
in. (mm)K in. (mm)
E
F
J DIA
The remote mount transmitter has three conduit holes in the flow meter enclosure that should be suitable for most
installations. Use a sealed cord grip or NEMA 4 conduit connection to retain the NEMA 3 integrity of the flow meter enclosure.
Failure to do so will void the manufacturer’s warranty and can lead to product failure.
The TFXL meter is housed in an insulating plastic enclosure that does not provide continuity of bonding between field wiring
conduit and the TFXL meter chassis or other conduits connected to the enclosure.
Page 11 April 2016TTM-UM-00369-EN-03
Transmitter Installation
Wiring methods and practices are to be made in accordance with the NEC (National Electrical Code®) and/or other local
ordinances that may be in effect. Consult the local electrical inspector for information regarding wiring regulations.
When making connections to the field wiring terminals inside the flow meter, strip back the wire insulation approximately
0.25 inch (6 mm). Stripping back too little may cause the terminals to clamp on the insulation and not make good contact.
Stripping back too much insulation may lead to a situation where the wires could short together between adjacent terminals.
Wires should be secured in the field wiring terminals using a screw torque of 0.5…0.6 Nm.
If using the DC ground terminal as a protective conductor terminal, apply the protective conductor first and secure it
independently of other connections. Connect the protective conductor so it is unlikely to be removed by servicing that does
not involve the protective conductor or post a warning requiring the replacement of the protective conductor after removal.
Power the TFXL meter with a Class 2 direct current (DC) power source. The power source should be capable of supplying
12…28V DC at a minimum of 250 milliamps. With the power from the DC power source disabled or disconnected, connect the
positive supply wire and ground to the field wiring terminals in the flow meter. See Figure 8 on page 14. A wiring diagram is
on the inside cover of the meter enclosure.
MPORTANTI
• FOLLOW INSTRUCTIONS TO PROVIDE SAFETY OF EQUIPMENT AND/OR PERSONNEL.
• MUST BE OPERATED BY A POWER SUPPLY SUITABLE FOR THE LOCATION.
• DO NOT CONNECT OR DISCONNECT EITHER POWER OR OUTPUTS UNLESS THE AREA IS KNOWN
TO BE NONHAZARDOUS.
• DO NOT CONNECT THE INTERFACE CABLE BETWEEN A TFXL METER AND A PERSONAL COMPUTER UNLESS THE AREA IS
KNOWN TO BE NONHAZARDOUS.
Page 12 April 2016TTM-UM-00369-EN-03
Transducer Connections
TRANSDUCER CONNECTIONS
Figure 7: Transducer connections
To access terminal strips for wiring, first loosen the four screws holding the top of the case to the bottom.
OTE:NThe four screws are “captive” screws and cannot be removed from the top of the case.
If the unit has a display, remove the four Phillips head screws that hold the display to the main circuit board and carefully
move it out of the way. Do not over stress the ribbon cable located between the display and the microprocessor
circuit boards.
Guide the transducer terminations through the transmitter conduit hole located in the bottom-left of the enclosure. Secure
the transducer cable with the supplied conduit nut (if flexible conduit was ordered with the transducer).
OTE:NTFXL meter with integral transducers have the transducers connected at the factory and the transducer connections
section can be skipped.
The terminals within the TFXL meter are of a screw-down barrier terminal type. Depending on the type of transducers being
used there are two terminal strip arrangements possible.
Remote mount small pipe transducers are connected to the terminals on the main circuit board.
Remote mount transducers are connected to a daughter board on the left side of the meter.
Connect the appropriate wires at the corresponding screw terminals in the transmitter. Observe upstream and downstream
orientation and wire polarity. See Figure 7.
OTE:NHigh temperature transducer cables come with red and black wire colors. For the red and black combination, the red
wire is positive (+) and the black wire is negative (–).
OTE:NThe transducer cable carries low level, high frequency signals. In general, it is not recommended to add additional
length to the cable supplied with the transducers. If additional cable is required, contact the factory to arrange an
exchange for a transducer with the appropriate length of cable. Cables 100…990 feet (30…300 meters) are available
with RG59 75 Ohm coaxial cable.
Page 13 April 2016TTM-UM-00369-EN-03
DC Power Connections
DC POWER CONNECTIONS
The TFXL meter should be operated from an 12…28V DC Class 2 power source capable of supplying a minimum of 250 mA
of current.
1. Feed the power source through the conduit hole on the right side of the enclosure. Connect power to the screw terminal
block in the TFXL meter. Use wiring practices that conform to local and national codes.
2. Connect the DC power to 12…28V DC In and DC Gnd., as in Figure 8.
DC Ground
DC Ground
11 - 28 VDC
Figure 8: DC power connections
3. Connect an 12…28V DC Class 2 power source as illustrated in Figure 8. TFXL meter terminal blocks can accommodate wire
up to 14 AWG.
4. Connect a switch or circuit breaker in close proximity of the TFXL meter and within easy reach of the operator.
5. Mark the switch or circuit breaker as the disconnect device for the TFXL meter.
11 - 28 VDC
Page 14 April 2016TTM-UM-00369-EN-03
Transducer Installation
TRANSDUCER INSTALLATION
The transducers for the TFXL meter contain piezoelectric crystals that transmit and receive ultrasonic signals through the
walls of liquid piping systems.
DTTR, DTTN and DTTH transducers are relatively simple and straightforward to install, but spacing and alignment of the
transducers is critical to the system’s accuracy and performance. CAREFULLY EXECUTE THESE INSTRUCTIONS.
DTTS and DTTC small pipe transducers have integrated transmitter and receiver elements that eliminate the requirement for
spacing measurement and alignment.
Mounting the DTTR, DTTN and DTTH clamp-on ultrasonic transit time transducers takes four steps:
1. Select the optimum location on a piping system.
2. Select a mounting conguration.
3. Enter the pipe and liquid parameters into the UltraLink software utility or key them into the transmitter. The UltraLink
software utility or the transmitter’s rmware calculates proper transducer spacing based on these entries.
4. Prepare the pipe and mount the transducers.
Mounting Location
Select a Mounting Location
The first step in the installation process is the selection of an optimum location for the flow measurement to be made. For this
to be done effectively, a basic knowledge of the piping system and its plumbing are required.
An optimum location is defined as:
• A piping system that is completely full of liquid when measurements are being taken. If the pipe may become completely
empty during a process cycle an error code 0010 (Low Signal Strength) will be displayed on the transmitter while the
pipe is empty. This error code will clear automatically once the pipe refills with liquid. Do not mount the transducers in an
area where the pipe may become partially filled, such as the highest point in a flow loop. Partially filled pipes will cause
erroneous and unpredictable operation of the transmitter.
• A piping system that contains lengths of straight pipe such as those described in Table 1 on page 16. The optimum
straight pipe diameter recommendations apply to pipes in both horizontal and vertical orientation. The straight runs in
Table 1 apply to liquid velocities that are nominally 7 fps (2.2 mps). As liquid velocity increases above this nominal rate, the
requirement for straight pipe increases proportionally.
• An area where the transducers will not be inadvertently bumped or disturbed during normal operation.
• NOT on downward flowing pipes unless adequate downstream head pressure is present to overcome partial filling of or
cavitation in the pipe.
Page 15 April 2016TTM-UM-00369-EN-03
Transducer Installation
Piping Conguration
and Transducer Positioning
Flow
*
Flow
*
Flow
**
**
Upstream
Pipe
Diameters
Downstream
***
24
14
10
Pipe
Diameters
5
5
5
Flow
Flow
Flow
*
*
*
*
Table 1: Piping configuration and transducer positioning
**
**
**
**
10
10
24
5
5
5
The TFXL meter will provide repeatable measurements on piping systems that do not meet these pipe diameter requirements,
but the accuracy of the readings may be influenced.
Page 16 April 2016TTM-UM-00369-EN-03
Transducer Installation
Select a Mounting Conguration
The transmitter can be used with five transducer types: DTTR, DTTN, DTTH, DTTS and DTTC. Meters that use the DTTR, DTTN
or DTTH transducer sets consist of two separate sensors that function as both ultrasonic transmitters and receivers. These
transducers are clamped on the outside of a closed pipe at a specific distance from each other. DTTS and DTTC transducers
integrate both the transmitter and receiver into one assembly that fixes the separation of the piezoelectric crystals.
The DTTR, DTTN and DTTH transducers can be mounted in:
• W-Mount where the sound traverses the pipe four times. This mounting method produces the best relative travel time
values but the weakest signal strength.
• V-Mount where the sound traverses the pipe twice. V-Mount is a compromise between travel time and signal strength.
• Z-Mount where the transducers are mounted on opposite sides of the pipe and the sound crosses the pipe once. Z-Mount
will yield the best signal strength but the smallest relative travel time.
Transducer Mounting
Configuration
Pipe MaterialPipe SizeLiquid Composition
Plastic (all types)
W-Mount
Carbon Steel
Stainless Steel
Copper
Ductile Iron
2…4 in. (50…100 mm)
Not recommended
Cast Iron
Plastic (all types)
V-Mount
Carbon Steel
Stainless Steel
Copper4…30 in. (100…750 mm)
Ductile Iron
Cast Iron
4…12 in. (100…300 mm)
Low TSS (Total Suspended
Solids); non-aerated
2…12 in. (50…300 mm)
Plastic (all types)> 30 in. (> 750 mm)
Z-Mount
Carbon Steel
Stainless Steel
Copper> 30 in. (> 750 mm)
Ductile Iron
Cast Iron
Table 2: Transducer mounting modes for DTTR, DTTN and DTTH
> 12 in. (> 300 mm)
> 12 in. (> 300 mm)
The transducers can be mounted in V-Mount where the sound transverses the pipe two times, W-Mount where the sound
transverses the pipe four times, or in Z-Mount where the transducers are mounted on opposite sides of the pipe and the
sound crosses the pipe once. The selection of mounting method is based on pipe and liquid characteristics which both have
an effect on how much signal is generated. The transmitter operates by alternately transmitting and receiving a frequency
modulated burst of sound energy between the two transducers and measuring the time interval that it takes for sound to
travel between the two transducers. The difference in the time interval measured is directly related to the velocity of the liquid
in the pipe.
The appropriate mounting configuration is based on pipe and liquid characteristics. Selecting the proper transducer
mounting method is an iterative process. Table 2 contains recommended mounting configurations for common applications.
These recommended configurations may need to be modified for specific applications if such things as aeration, suspended
solids, out-of-round piping or poor piping conditions are present.
TOP VIEW
OF PIPE
W-MountV-MountZ-Mount
TOP VIEW
OF PIPE
Figure 9: Transducer mounting modes for DTTR, DTTN and DTTH
TOP VIEW
OF PIPE
Page 17 April 2016TTM-UM-00369-EN-03
Transducer Installation
Top of
45°
YES
45°
W and V Mount
45°
YES
45°
Flow Meter
Mounting Orientation
2” DTTS and DTTC Transducers
Pipe
45°
YES
45°
DTTR, DTTN and DTTH Transducers
Top of
Pipe
45°
YES
45°
45°
YES
45°
Figure 10: Transducer orientation for horizontal pipes
Top of
Pipe
Z-Mount
Flow Meter
Mounting Orientation
Top of
Pipe
Flow Meter
Mounting Orientation
DTTS and DTTC Transducers
45°
YES
45°
45°
YES
45°
For DTTS and DTTC transducers, the transducers are V-mount. The frequency setting depends on the pipe material.
DTTS transducer designation refers to both DTTS and DTTC transducer types.
Table 3: Transducer mounting modes for DTTS / DTTC
Mounting
Configuration
V
Page 18 April 2016TTM-UM-00369-EN-03
Transducer Installation
Enter the Pipe and Liquid Parameters
The TFXL meter calculates proper transducer spacing based on the piping and liquid information you enter into the
transmitter via the UltraLink software utility. See "Parameter Configuration Using UltraLink Software" on page 29.
The most accuracy is achieved when the transducer spacing is exactly what the transmitter calculates, so use the calculated
spacing if the signal strength is satisfactory. If the pipe is not round, the wall thickness not correct or the actual liquid being
measured has a different sound speed than the liquid programmed into the transmitter, the spacing can vary from the
calculated value. In that case, place the transducers at the highest signal level observed when moving the transducers slowly
around the mount area.
OTE:NTransducer spacing is calculated on “ideal” pipe. Ideal pipe almost never exists, so you may need to alter the
transducer spacing. An effective way to maximize signal strength is to configure the display to show signal strength,
fix one transducer on the pipe and then—starting at the calculated spacing—move the remaining transducer small
distances forward and back to find the maximum signal strength point.
MPORTANTI
Enter all of the data on this list, save the data and reset the transmitter before mounting the transducers.
The following information is required before programming the instrument:
Nominal values for these parameters are included within the transmitter’s operating system. The nominal values may be used as they appear or may be modied if exact system
values are known.
1
Fluid viscosity
1
Table 4: Parameters required
Pipe relative roughness
1
Fluid specific gravity
OTE:NMuch of the data relating to material sound speed, viscosity and specific gravity is pre-programmed into the
transmitter. You need to modify this data only if you know that a particular application’s data varies from the
reference values. See "Parameter Configuration Using UltraLink Software" on page 29 for instructions on entering
configuration data into the transmitter via the software utility.
After entering the data listed above, the transmitter will calculate proper transducer spacing for the particular data set. The
distance will be in inches if the transmitter is configured in English units, or millimeters if configured in metric units.
1
1
Mount the Transducer
After selecting an optimal mounting location and determining the proper transducer spacing, mount the transducers onto
the pipe.
1. Clean the surface of the pipe. If the pipe has external corrosion or dirt, wire brush, sand or grind the mounting location
until it is smooth and clean. Paint and other coatings, if not flaked or bubbled, need not be removed. Plastic pipes typically
do not require surface preparation other than soap and water cleaning.
2. Orient and space the DTTR, DTTN and DTTH transducers on the pipe to provide optimum reliability and performance. On
horizontal pipes, when Z-Mount is required, mount the transducers 180 radial degrees from one another and at least 45
degrees from the top-dead-center and bottom-dead-center of the pipe. See Figure 10 on page 18. On vertical pipes, the
orientation is not critical.
The spacing between the transducers is measured between the two spacing marks on the sides of the transducers. These
marks are approximately 0.75 inches (19 mm) back from the nose of the DTTR, DTTN and DTTH transducers. See Figure 11.
Mount DTTS and DTTC transducers with the cable exiting within ±45 degrees of the side of a horizontal pipe. On vertical
pipes, the orientation does not apply.
Alignment
Marks
Figure 11: Transducer alignment marks
Page 19 April 2016TTM-UM-00369-EN-03
Transducer Installation
Transducer Mounting Congurations
V-Mount and W-Mount Configurations
Apply the Couplant
For DTTR, DTTN and DTTH transducers, place a single bead of couplant, approximately 1/2 inch (12 mm) thick, on the flat
face of the transducer. See Figure 12. Generally, a silicone-based grease is used as an acoustic couplant, but any good quality
grease-like substance that is rated to not ow at the operating temperature of the pipe is acceptable. For pipe surface
temperature over 150° F (65° C), use Sonotemp® (P.N. D002-2011-011).
½ in.
(12 mm)
Figure 12: Application of couplant
Position and Secure the Transducer
1. Place the upstream transducer in position and secure with a mounting strap. Place the straps in the arched groove on the
end of the transducer. Use the screw provided to help hold the transducer onto the strap. Verify that the transducer is true
to the pipe and adjust as necessary. Tighten the transducer strap securely.
2. Place the downstream transducer on the pipe at the calculated transducer spacing. See Figure 13 on page 20. Apply rm
hand pressure. If signal strength is greater than ve, secure the transducer at this location. If the signal strength is not ve
or greater, using rm hand pressure slowly move the transducer both towards and away from the upstream transducer
while observing signal strength.
Signal strength can be displayed on the transmitter’s display or on the main data screen in the UltraLink software utility.
See "Parameter Configuration Using UltraLink Software" on page 29. Clamp the transducer at the position where the
highest signal strength is observed. The factory default signal strength setting is ve. However, there are many applicationspecic conditions that may prevent the signal strength from attaining this level. Signal levels less than ve will probably
not be acceptable for reliable readings.
OTE:NSignal strength readings update only every few second. Move the transducer 1/8 inch then wait to see if the signal is
increasing or decreasing. Repeat until the highest level is achieved.
3. If, after adjusting the transducers, the signal strength does not rise to above ve, use an alternate transducer mounting
conguration. If the mounting conguration was W-Mount, re-congure the transmitter for V-Mount, move the
downstream transducer to the new spacing distance and repeat the procedure "Mount the Transducer" on page 19.
OTE:NMounting the high temperature transducers is similar
to mounting the DTTR/DTTN transducers. High
temperature installations require acoustic couplant
that is rated not to flow at the operating temperature
of the pipe surface.
Transducer
Spacing
Figure 13: Transducer positioning
Page 20 April 2016TTM-UM-00369-EN-03
Transducer Installation
DTTS/DTTC Small Pipe Transducer Installation
The small pipe transducers are designed for specific pipe outside diameters. Do not attempt to mount a DTTS/DTTC
transducer onto a pipe that is either too large or too small for the transducer. Instead, contact the manufacturer to arrange for
a replacement transducer that is the correct size.
1. Apply a thin coating of acoustic coupling grease to both halves of the transducer housing where the housing will contact
the pipe. See Figure 14.
2. On horizontal pipes, mount the transducer in an orientation so the cable exits at ±45 degrees from the side of the pipe.
Do not mount with the cable exiting on either the top or bottom of the pipe. On vertical pipes, the orientation does not
matter.
3. Tighten the wing nuts or U-bolts so the acoustic coupling grease begins to ow out from the edges of the transducer or
from the gap between the transducer halves.
MPORTANTI
Do not overtighten. Overtightening will not improve performance and may damage the transducer.
4. If signal strength is less than ve, remount the transducer at another location on the piping system.
1/16 in. (1.5 mm)
Acoustic Couplant
Grease
Figure 14: Application of acoustic couplant — DTTS/DTTC transducers
OTE:NIf a DTTS/DTTC small pipe transducer was purchased separately from the transmitter, the following configuration
procedure is required.
Page 21 April 2016TTM-UM-00369-EN-03
Transducer Installation
DTTS/DTTC Small Pipe Transducer Calibration Procedure
1. Establish communications with the transit time transmitter.
2. From the tool bar, select Calibration. See Figure 17.
3. On the pop-up screen, click Next twice to get to
Page 3 of 3. See Figure 15.
4. Click Edit.
5. If a calibration point is displayed in Calibration Points Editor,
record the information, then highlight and click Remove.
See Figure 16.
6. Click ADD...
7. Enter Delta T, Un-calibrated Flow, and Calibrated Flow
values from the DTTS/DTTC calibration label, then click OK.
See Figure 18.
8. Click OK in the Edit Calibration Points screen.
9. The display will return to Page 3 of 3. Click Finish.
See Figure 15.
10. After Writing Conguration File is complete, turn o the
power. Turn on the power again to activate the new
settings.
Calibration (Page 3 of 3) - Linearization
28.2
Gal/M
Delta Time
Figure 15: Calibration points editor
Calibration Points Editor
Select point(s) to edit or remove:
30.00 ns 2000.00 Gal/Min 1.000
< Back
1) Please establish a
reference flow rate.
1FPS / 0.3MPS Minimum.
2) Enter the reference flow
rate below. (Do not enter 0)
3) Wait for flow to stabilize.
4) Press the Set button.
Flow:
Set
Edit
Export...
CancelFile Open... File Save...
Finish
Add...
Edit...
Remove
UltraLINK Device Addr 127
U
ConfigurationCalibrationStrategy
Device Addr 127
U
1350 Gal/Min
Flow:
Pos:
Neg:
0 OB
0 OB
0 OB
15.6%
100%
-2.50 ns
09:53:39
Totalizer Net:
Sig. Strength:
Margin:
Delta T:
Last Update:
Figure 17: Data display screen
!
Errors
2000
1600
1200
Select All
Select All
Select None
HelpWindowCommunicationsViewEditFile
OK
Cancel
Select None
Print PreviePrint
Figure 16: Calibration page 3 of 3
Scale:60 MinTime:
200
Model: DTTSJP-050-N000-N
Edit Calibration Points
S/N: 39647 Delta-T: 391.53nS
Uncal. Flow: 81.682 GPM
Cal. Flow: 80 GPM
Delta T:
Uncalibrated Flow:
Calibrated Flow:
OK
391.53
81.682
80.000
ns
Gal/Min.
Gal/Min.
Cancel
Figure 18: Edit calibration points
Page 22 April 2016TTM-UM-00369-EN-03
Transducer Installation
Z-Mount Configuration
Installation on larger pipes requires careful measurements of the linear and radial placement of the DTTR, DTTN and DTTH
transducers. Failure to properly orient and place the transducers on the pipe may lead to weak signal strength and/or
inaccurate readings. This section details a method for properly locating the transducers on larger pipes. This method requires
a roll of paper such as freezer paper or wrapping paper, masking tape and a marking device.
1. Wrap the paper around the pipe in the manner shown in Figure 19. Align the paper ends to within 1/4 inch (6 mm).
2. Mark the intersection of the two ends of the paper to indicate the circumference. Remove the template and spread it out
on a at surface. Fold the template in half, bisecting the circumference. See Figure 20.
3. Crease the paper at the fold line. Mark the crease. Place a mark on the pipe where one of the transducers will be located.
See Figure 10 for acceptable radial orientations. Wrap the template back around the pipe, placing the beginning of the
paper and one corner in the location of the mark. Move to the other side of the pipe and mark the pipe at the ends of
the crease. Measure from the end of the crease (directly across the pipe from the rst transducer location) the dimension
derived in "Select a Mounting Configuration" on page 17. Mark this location on the pipe.
4. The two marks on the pipe are now properly aligned and measured. If access to the bottom of the pipe prohibits the
wrapping of the paper around the circumference, cut a piece of paper 1/2 the circumference of the pipe and lay it over the
top of the pipe. The equation for the length of 1/2 the circumference is: 1/2 Circumference = Pipe O.D. × 1.57
The transducer spacing is the same as found in "Position and Secure the Transducer" on page 20. Mark opposite corners of the
paper on the pipe. Apply transducers to these two marks.
Edge of
Paper
Line Marking
Circumference
Fold
Pipe Circumference
Transducer
Spacing
LESS THAN ¼” (6 mm)
Figure 19: Paper template alignment
Figure 20: Bisecting the pipe circumference
Crease
(Center of Pipe)
5. For DTTR, DTTN and DTTH transducers, place a single bead of couplant,
approximately 1/2 inch (12 mm) thick, on the at face of the transducer.
See Figure 12. Generally, a silicone-based grease is used as an acoustic
couplant, but any good quality grease-like substance that is rated to
not ow at the operating temperature of the pipe is acceptable.
6. Place the upstream transducer in position and secure with a stainless
steel strap or other fastening device. Straps should be placed in the
TOP VIEW
OF PIPE
arched groove on the end of the transducer. A screw is provided to help
hold the transducer onto the strap. Verify that the transducer is true to
the pipe, adjust as necessary. Tighten transducer strap securely. Larger
pipes may require more than one strap to reach the circumference of
the pipe.
Figure 21: Z-Mount transducer placement
7. Place the downstream transducer on the pipe at the calculated transducer spacing. See Figure 21. Using rm hand
pressure, slowly move the transducer both towards and away from the upstream transducer while observing signal
Page 23 April 2016TTM-UM-00369-EN-03
Transducer Installation
strength. Clamp the transducer at the position where the highest signal strength is observed. A signal strength between
5…98 is acceptable.
The factory default signal strength setting is five. However there are many application-specific conditions that may
prevent the signal strength from attaining this level. A minimum signal strength of five is acceptable as long as this signal
level is maintained under all flow conditions.
On certain pipes, a slight twist to the transducer may cause signal strength to rise to acceptable levels. Certain pipe and
liquid characteristics may cause signal strength to rise to greater than 98. The problem with operating this transmitter with
very high signal strength is that the signals may saturate the input amplifiers and cause erratic readings. Strategies for
lowering signal strength would be changing the transducer mounting method to the next longest transmission path. For
example, if there is excessive signal strength and the transducers are mounted in a Z-Mount, try changing to V-Mount or
W-Mount. Finally, you can also move one transducer slightly off-line with the other transducer to lower signal strength.
8. Secure the transducer with a stainless steel strap or other fastener.
Mounting Rail System Installation for DTTR
For remote flow DTTR transducers with outside diameters between 2…10 inches (50…250 mm) , the rail mounting kit aids
in installation and positioning of the transducers. Transducers slide on the rails, which have measurement markings that are
viewable through the sight opening.
1. Install the single mounting rail on the side of the pipe with the stainless steel bands provided. Do not mount it on the top
or bottom of the pipe. On vertical pipe, orientation is not critical. Check that the track is parallel to the pipe and that all
four mounting feet are touching the pipe.
2. Slide the two transducer clamp brackets toward the center mark on the mounting rail.
3. Place a single bead of couplant, approximately 1/2 inch (12 mm) thick, on the at face of the transducer.
See Figure 12 on page 20.
4. Place the rst transducer in between the mounting rails near the zero point on the scale. Slide the clamp over the
transducer. Adjust the clamp and transducer so the notch in the clamp aligns with the zero on the scale. See Figure 23.
5. Secure with the thumb screw. Check that the screw rests in the counter bore on the top of the transducer. (Excessive
pressure is not required. Apply just enough pressure so that the couplant lls the gap between the pipe and transducer.)
6. Place the second transducer in between the mounting rails near the dimension derived in the transducer spacing section.
Read the dimension on the mounting rail scale. Slide the transducer clamp over the transducer and secure with the
thumb screw.
Mounting Track Installation for DTTN/DTTH
A convenient transducer mounting track can be used for pipes that have outside diameters between 2…10 inches
(50…250 mm) and for DTTN/DTTH transducers. If the pipe is outside of that range, mount the transducers separately.
1. Install the single mounting rail on the side of the pipe with the stainless steel bands provided. Do not mount it on the top
or bottom of the pipe. On vertical pipe, orientation is not critical. Check that the track is parallel to the pipe and that all
four mounting feet are touching the pipe.
2. Slide the two transducer clamp brackets toward the center mark on the mounting rail.
3. Place a single bead of couplant, approximately 1/2 inch (12 mm) thick, on the at face of the transducer.
See Figure 12 on page 20.
4. Place the rst transducer in between the mounting rails near the zero point on the scale. Slide the clamp over the
transducer. Adjust the clamp and transducer so the notch in the clamp aligns with the zero on the scale. See Figure 23.
5. Secure with the thumb screw. Check that the screw rests in the counter bore on the top of the transducer. (Excessive
pressure is not required. Apply just enough pressure so that the couplant lls the gap between the pipe and transducer.)
Page 24 April 2016TTM-UM-00369-EN-03
Figure 22: Mounting rail system for DTTR
Transducer Installation
6. Place the second transducer in between the mounting rails near the dimension derived in the transducer spacing section.
Read the dimension on the mounting rail scale. Slide the transducer clamp over the transducer and secure with the
thumb screw.
Top View
of Pipe
Figure 23: Mounting track installation
Page 25 April 2016TTM-UM-00369-EN-03
Loop Load (Ohms)
4-20 mA Return (-)
4-20 mA Output (+)
4-20 mA Ground
4-20 mA Output
Inputs/Outputs
INPUTS/OUTPUTS
The TFXL meter is available in two general congurations:
• The standard TFXL meter is equipped with a 4…20 mA output and a rate frequency output.
• The TFXL meter is also available with a totalizing pulse output option.
Standard 4…20 mA Output
The 4…20 mA output interfaces with most recording and logging systems by transmitting an analog current signal that is
proportional to system ow rate. The 4…20 mA output is internally powered (current sourcing) and can span negative to
positive ow/energy rates.
Supply Voltage - 7 VDC
1100
1000
900
800
700
600
500
400
300
200
100
10121416182022242628
0.02
Supply Voltage (VDC)
Figure 24: Allowable loop resistance
= Maximum Loop Resistance
Operate in the
Shaded Regions
Figure 25: 4…20 mA output
The 4…20 mA output signal is available between the 4…20 mA Output and Signal Ground terminals as shown in Figure 25.
Batch/Totalizer Output
Totalizer mode configures the output to send a 100 mSec pulse each time the display totalizer increments divided by the
TOT MULT. The TOT MULT value must be a whole, positive numerical value. This output is limited to 1 Hz maximum.
For example, if the totalizer exponent TOTL E is set to E0 ×1 and the totalizer multiplier TOT MULT is set to 1, then the
output will pulse each time the totalizer increments one count, or each single, whole measurement unit totalized.
If the totalizer exponent TOTL E is set to E2 ×100 and the totalizer multiplier TOT MULT is set to 1, then the control output
will pulse each time the display totalizer increments or once per 100 measurement units totalized.
If the totalizer exponent TOTL E is set to E0 ×1 and the totalizer multiplier TOT MULT is set to 2, the control output will
pulse once for every two counts that the totalizer increments.
Page 26 April 2016TTM-UM-00369-EN-03
Inputs/Outputs
Totalizer Output Option
TFXL meters can be ordered with a totalizer pulse output option. This option is installed in the position where the rate pulse
would normally be installed.
Totalizing Pulse Specifications
ParameterSpecication
SignalOne pulse for each increment of the totalizer’s least significant digit
OperationNormal state is high; pulses low with display total increments
Pulse Duration30 mSec/minute
Source / Sink2 mA maximum
Logic5V DC
Table 5: Optional totalizing pulse output
Wiring and configuration of this option is similar to the totalizing pulse output for the TFXL meter variation. This option must
use an external current-limiting resistor.
TTL Pluse (+)
TTL Pluse (-)
TTL Pluse (+)
TTL Pluse (-)
O
N
1
Figure 26: Totalizer output option
Frequency Output
The frequency output is a TTL circuit that outputs a pulse waveform that varies proportionally with ow rate. This type of
frequency output is also known as a Rate Pulse output. The output spans from 0 Hz, normally at zero ow rate to 1000 Hz at
full ow rate (see "Flow Tab" on page 35).
O
N
Turbine Output
Turbine Output
1
Figure 27: Frequency output switch settings
The frequency output is proportional to the maximum flow rate entered into the meter. The maximum output frequency is
1000 Hz. If, for example, the MAX RATE parameter was set to 400 GPM then an output frequency of 500 Hz (half of the full
scale frequency of 1,000 Hz) would represent 200 GPM.
In addition to the control outputs, the frequency output can be used to provide total information by use of a “K-factor”. A
K-factor simply relates the number of pulses from the frequency output to the number of accumulated pulses that equates to
a specific volume.
Turbine Simulation
Page 27 April 2016TTM-UM-00369-EN-03
Inputs/Outputs
For this transmitter, the relationship is described by the following equation. The 60,000 relates to measurement units in
volume/min. Measurement units in seconds, hours or days would require a different numerator.
K factor
60,000
=
Full Scale Units
A practical example would be if the MAX RATE for the application were 400 gpm, the Kfactor (representing the number of
pulses accumulated needed to equal one gallon) would be:
K factor
60,000
==
400
gpm
150
Pulses Per Gallon
If the frequency output is to be used as a totalizing output, the transmitter and the receiving instrument must have identical
Kfactor values programmed into them to ensure that accurate readings are being recorded by the receiving instrument.
Unlike standard mechanical transmitters such as turbines, gear or nutating disc meters, the Kfactor can be changed by
modifying the MAX RATE flow rate value. See “KFactors” on page 42.
There are two frequency output options available:
• The Turbine Meter Simulation option is used when a receiving instrument is capable of interfacing directly with a
turbine transmitter’s magnetic pickup. The output is a relatively low voltage AC signal whose amplitude swings above and
below the signal ground reference. The minimum AC amplitude is approximately 500 mV peak-to-peak. To activate the
turbine output circuit, turn SW4 OFF.
500 mV
p-p
0
Figure 28: Frequency output waveform (simulated turbine)
• The Square-Wave Frequency option is used when a receiving instrument requires that the pulse voltage level be either
of a higher potential and/or referenced to DC ground. The output is a square-wave with a peak voltage equaling the
instrument supply voltage when the SW3 is ON. If desired, an external pullup resistor and power source can be used by
leaving SW3 OFF. Set SW4 to ON for a square-wave output.
+V
0
Figure 29: Frequency output waveform (square wave)
Page 28 April 2016TTM-UM-00369-EN-03
Parameter Conguration Using UltraLink Software
PARAMETER CONFIGURATION USING ULTRALINK SOFTWARE
The flow meter must be programmed with the UltraLink software utility. The software is used to configure, calibrate and
communicate with TFXL flow meters. Additionally, it has numerous troubleshooting tools to make diagnosing and correcting
installation problems easier.
System Requirements
The software requires a PC-type computer, running Windows 2000, Windows XP, Windows Vista or Windows 7
operating systems.
Additional Parts Required for Conguration
Part NumberDescription
D010-0204-001Configuration cable kit
D005-2116-004USB-to-DB9 converter (required if PC does not have a serial port)
Installation
1. From the Windows Start button, choose the Run command. From the Run dialog box, use Browse to navigate to the
UltraLink_Setup.exe le and double-click.
2. The UltraLink Setup will automatically extract and install on the hard disk. The UltraLink icon can then be copied to
the desktop.
OTE:NIf a previous version of this software is installed, it must be un-installed before a new version of the software can be
installed. Newer versions will ask to remove the old version and perform the task automatically. Older versions must
be removed using the Microsoft Windows Add/Remove Programs applet.
OTE:NMost PCs will require a restart after a successful installation.
Initialization
1. If the PC has a serial port, connect the PC to the TFXL meter with the D010-0204-001 cable kit.
If the PC has no serial port, connect the PC to the TFXL meter with the D010-0204-001 cable kit and the D005-2116-004
USB converter connected in series.
PC INTERFACE
CABLE
PC INTERFACE
FLOW METER MOUNTING ORIENTATION
10 D
Figure 30: PC connections
PC INTERFACE
CABLE
ULTRALINK
OTE:NPower up the transmitter prior to running this software.
OTE:NWhile the serial cable is connected, the frequency outputs are disabled.
2. Double-click the UltraLink icon to start the software.
The UltraLink software will attempt to connect to the transmitter. If communications cannot be established, you will be
prompted to select a Com Port and Com Port Type.
TM
Page 29 April 2016TTM-UM-00369-EN-03
Parameter Conguration Using UltraLink Software
The first screen is the RUN mode screen, which contains real-time information regarding flow rate, totals, signal strength,
communications status, and the transmitter’s serial number. The COMM indicator in the lower right corner indicates that the
serial connection is active. If the COMM box contains a red ERROR indication, select Communications on the Menu bar and
select Initialize. Choose the appropriate COM port and the RS232 / USB Com Port Type. Proper communication is verified
when a green OK is indicated in the lower right corner of the PC display and the Last Update indicator in the text area on the
left side of the screen changes from red to an active clock indication.
Figure 31: Data display screen
Page 30 April 2016TTM-UM-00369-EN-03
Conguration Menu
CONFIGURATION MENU
The Configuration menu has six tabs used to control how the transmitter is set up and responds to varying
Configuration
Basic Tab
Entry of data in the Basic and Flow tabs is all that is required to provide flow measurement functions to the transmitter. If
you are not going to use input/output functions, click Download to transfer the configuration to the transmitter. When the
configuration has been completely downloaded, turn the power to the transmitter off and then on again to guarantee the
changes take effect.
flow conditions. The first screen that appears after clicking the Configuration button is the Basic tab.
Figure 32: Basic tab
CategoryParameterMeaningOptionDescription
The English/metric selection will also configure the transmitter to display sound
speeds in pipe materials and liquids as either feet per second (fps) or meters per
second (mps), respectively.
IMPORTANT: If the UNITS entry has been changed from ENGLISH to METRIC
or from METRIC to ENGLISH, the entry must be saved and the instrument reset
(power cycled)) in order for the transmitter to initiate the change in operating
units. Failure to save and reset the instrument will lead to improper transducer
spacing calculations and an instrument that may not measure properly.
When using the Standard Configurations drop-down menu alternate, menu
choices can be made by using the following guidelines:
1. Select the transducer type and pipe size for the transducer to be used. The
rmware will automatically enter the appropriate values for that pipe size and
type. Every entry parameter except for Units, Standard Congurations and
Specic Heat Capacity are unavailable (grayed out).
2. From the Standard Congurations drop-down menu, select Custom. The
previously unavailable selections are now available for editing.
3. Make any necessary changes to the basic conguration and click Download.
4. Cycle the transmitter power o and then back on again for the changes to
take eect.
General
Units
Standard
Configuration
Measurement
standard
Pre-programmed
pipe
configurations
ENGLISH (Inches)
METRIC
(Millimeters)
Menu selection
Page 31 April 2016TTM-UM-00369-EN-03
Conguration Menu
CategoryParameterMeaningOptionDescription
Selects the transducer that will be connected to the transmitter. Select the
appropriate transducer type from the drop-down list. This selection influences
transducer spacing and transmitter performance, so it must be correct. If you are
unsure about the type of transducer to which the transmitter will be connected,
consult the shipment packing list or call the manufacturer for assistance.
A change of transducer type will cause a system configuration error 1002: Sys Config Changed to occur. This error will clear when power to the transmitter is
cycled.
Selects the orientation of the transducers on the piping system. See “Transducer
Installation” on page 15 and Table 2 on page 17 for detailed information
regarding transducer mounting modes for particular pipe and liquid
characteristics. Whenever the transducer mounting mode is changed, power to
the transmitter must be cycled.
Selects a transmission frequency for the various types of transducers. In general,
the larger the pipe the slower the transmission frequency needs to be to attain a
good signal.
FrequencyTransducersMounting Modes
2 MHz
1 MHz
A value calculated by the transmitter’s firmware that takes into account pipe,
liquid, transducer and mounting information. The spacing adapts as these
parameters are modified. The spacing is given in inches for English units or
millimeters for metric. This value is the lineal distance that must be between the
transducer alignment marks. Selection of the proper transducer mounting method
is not entirely predictable and many times is an iterative process.
OTE:NThis setting only applies to DTTR, DTTN and DTTH transducers.
Allows the change of the direction the transmitter assumes is forward. When
mounting transmitters with integral transducers, use this feature to reverse
upstream and downstream transducers, making upside-down mounting of the
display unnecessary.
Transducer
TypeTransducer typeMenu selection
Mount
Frequency
Spacing
Flow Direction
Transducer
mounting
method
Transducer
transmission
frequency
Transducer
spacing
Transducer flow
direction
V
W
Z
1 MHZ
2 MHZ
ENGLISH (Inches)
METRIC
(Millimeters)
FORWARD
REVERSE
Pipe Size and
Type
All 1/2…1-1/2 in. Small Pipe
and Tube
2 in. Tubing
2 in. ANSI Pipe and Copper
Tube
Standard and High TempW, V, and Z2 in. and Greater
Selected by
Firmware
Selected by
Firmware
Specific to
Transducer
Specific to
Transducer
Page 32 April 2016TTM-UM-00369-EN-03
CategoryParameterMeaningOptionDescription
Select a material from the pull-down list. If the pipe material used is not found in the list, select Other
MaterialPipe material
and enter the actual pipe material Sound Speed and Roughness (much of this information is available
at web sites such as www.ondacorp.com/tecref_acoustictable.html) for pipe relative roughness
calculations.
Specifies the speed of sound value, shear or transverse wave, for the pipe wall. If
the UNITS value was set to ENGLISH, the entry is in fps (feet per second). METRIC
entries are made in mps (meters per second).
Sound SpeedPipe sound speed
ENGLISH (fps)
METRIC (mps)
If a pipe material was chosen from the PIPE MATERIAL list, a nominal value for
speed of sound in that material will be automatically loaded. If the actual sound
speed is known for the application piping system and that value varies from the
automatically loaded value, the value can be revised.
If OTHER was chosen as PIPE MATERIAL, then a PIPE SOUND SPEED must also be
entered.
Enter the pipe outside diameter in inches if ENGLISH was selected as UNITS; in
millimeters if METRIC was selected.
See “North American Pipe Schedules” on page 44 for charts listing popular pipe
sizes. Correct entries for pipe O.D. and pipe wall thickness are critical to obtaining
Pipe
Pipe O.D.
Pipe outside
diameter
ENGLISH (Inches)
METRIC
(Millimeters)
accurate flow measurement readings..
The transmitter provides flow profile compensation in its flow measurement
calculation. The ratio of average surface imperfection as it relates to the pipe
internal diameter is used in this compensation algorithm and is found by using the
following formula:
Roughness
Pipe material
relative roughness
(Enter a numeric
value)
Linear RMS Measurement of the Pipes Internal Wall Surface
PipeR =
If a pipe material was chosen from the PIPE MATERIAL list, a nominal value for
relative roughness in that material will be automatically loaded. If the actual
roughness is known for the application piping system and that value varies from
the automatically loaded value, the value can be revised.
Enter the pipe wall thickness in inches if ENGLISH was selected as UNITS; in
millimeters if METRIC was selected.
See “North American Pipe Schedules” on page 44 for charts listing popular pipe
sizes. Correct entries for pipe O.D. and pipe wall thickness are critical to obtaining
Wall Thickness
Pipe wall
thickness
ENGLISH (Inches)
METRIC
(Millimeters)
accurate flow measurement readings.
Select a liner material. If the pipe liner material used is not included in the list, select Other and enter
MaterialPipe liner material
liner material Sound Speed and Roughness (much of this information is available at web sites such as
www.ondacorp.com/tecref_acoustictable.html).
Allows adjustments to be made to the speed of sound value, shear or transverse
wave, for the pipe wall. If the UNITS value was set to ENGLISH, the entry is in fps
(feet per second). METRIC entries are made in mps (meters per second).
If a liner was chosen from the LINER MATERIAL list, a nominal value for speed of
sound in that media will be automatically loaded. If the actual sound speed rate is
Sound Speed
Speed of sound in
the liner
ENGLISH (fps)
METRIC (mps)
known for the pipe liner and that value varies from the automatically loaded value,
the value can be revised.
ENGLISH (Inches)
METRIC
(Millimeters)
If the pipe has a liner, enter the pipe liner thickness. Enter this value in inches if
ENGLISH was selected as UNITS; in millimeters if METRIC was selected.
Liner
Thickness
Pipe liner
thickness
The transmitter provides ow prole compensation in its ow measurement
calculation. The ratio of average surface imperfection as it relates to the pipe
internal diameter is used in this compensation and is found by using the following
formula:
Linear RMS Measurement of the Liner’s Internal Wall Surface
Liner R
Roughness
Liner material
relative roughness
(Enter a numeric
value)
=
If a liner material was chosen from the LINER MATERIAL list, a nominal value for
relative roughness in that material will be automatically loaded. If the actual
roughness is known for the application liner and that value varies from the
automatically loaded value, the value can be revised. See “Liner material relative
roughness” on page 38 for pipe liner relative roughness calculations.
Inside Diameter of the Pipe
Inside Diameter of the Liner
Conguration Menu
Page 33 April 2016TTM-UM-00369-EN-03
Conguration Menu
CategoryParameterMeaningOptionDescription
Select a fluid type. selected from a pull-down list. If the liquid is not found in the list, select Other and
enter the liquid Sound Speed and Absolute Viscosity into the appropriate boxes. The liquid’s specific
gravity is required if mass measurements are to be made, and the specific heat capacity is required for
energy measurements.
Allows adjustments to be made to the speed of sound entry for the liquid. If the
UNITS value was set to ENGLISH, the entry is in fps (feet per second). METRIC entries
are made in mps (meters per second).
If a fluid was chosen from the FLUID TYPE list, a nominal value for speed of sound
in that media will be automatically loaded. If the actual sound speed is known for
ENGLISH (fps)
METRIC (mps)
(Enter a numeric
value)
(Enter a numeric
value in
centipoise)
BTU/lb
the application fluid and that value varies from the automatically loaded value, the
value can be revised.
If OTHER was chosen as FLUID TYPE, a FLUID SOUND SPEED will need to be entered.
A list of alternate fluids and their associated sound speeds is located in the
Appendix located at the back of this manual.
Fluid sound speed may also be found using the Target DBg Data screen available in
the UltraLink software utility. See "Target Dbg Data Screen Definitions" on page 40.
Allows adjustments to be made to the specific gravity (density relative to water) of
the liquid.
As stated previously in the FLUID ABSOLUTE VISCOSITY section, specific gravity
is used in the Reynolds correction algorithm. It is also used if mass flow
measurement units are selected for rate or total.
If a fluid was chosen from the FLUID TYPE list, a nominal value for specific gravity in
that media will be automatically loaded. If the actual specific gravity is known for
the application fluid and that value varies from the automatically loaded value, the
value can be revised.
If OTHER was chosen as FLUID TYPE, a SPECIFIC GRAVITY may need to be entered
if mass flows are to be calculated. See “Specifications” on page 54 for list of
alternate fluids and their specific gravities.
Allows adjustments to be made to the absolute viscosity of the liquid in centipoise.
Ultrasonic transmitters use pipe size, viscosity and specific gravity to calculate
Reynolds numbers. Since the Reynolds number influences flow profile, the
transmitter has to compensate for the relatively high velocities at the pipe center
during transitional or laminar flow conditions. The entry of FLUID VI is used in the
calculation of Reynolds and the resultant compensation values.
If a fluid was chosen from the FLUID TYPE list, a nominal value for viscosity in
that media will be automatically loaded. If the actual viscosity is known for the
application fluid and that value varies from the automatically loaded value, the
value can be revised.
If OTHER was chosen as FLUID TYPE, then a FLUID ABSOLUTE VISCOSITY must also
be entered. See "Fluid Properties" on page 49 for a list of alternate fluids and their
associated viscosities.
Allows adjustments to be made to the specific heat capacity of the liquid.
If a fluid was chosen from the FLUID TYPE list, a default specific heat will be
automatically loaded. This default value is displayed as SPECIFIC HEAT. If the actual
specific heat of the liquid is known or it differs from the default value, the value
can be revised. See Table 5, Table 6 and Table 7 for specific values. Enter a value that
is the mean of both pipes.
Fluid
Fluid
TypeFluid/media type
Sound Speed
Specific
Gravity
Absolute
Viscosity
Specific Heat
Capacity
Speed of sound in
the fluid
Fluid specific
gravity
Absolute viscosity
of the fluid
Fluid specific heat
capacity
Page 34 April 2016TTM-UM-00369-EN-03
Flow Tab
ParameterMeaningOptionDescription
Flow Rate
Units
Totalizer Units
Min Flow
Max Flow
Low Flow
Cutoff
Low Signal
Cutoff
Substitute
Flow
Engineering units
for flow rate
Engineering units
for totalizer
Minimum
volumetric flow
rate
Maximum
volumetric flow
rate
Flow cutoff value
Low signal cutoff
value
Substitute flow
value
Menu selection
Menu selection
(Enter a numeric
value)
(Enter a numeric
value)
(Enter a numeric
value)
(Enter a numeric
value)
0.0…100.0
Select an appropriate rate unit and time from the two lists. This entry also includes the selection
of Flow Rate Interval after the virgule ( / ) sign.
Select an appropriate totalizer unit and totalizer exponent. The totalizer exponents are in
scientific notation and permit the eight digit totalizer to accumulate very large values before the
totalizer “rolls over” and starts again at zero.
Enter the minimum volumetric flow rate setting to establish filtering parameters. Volumetric
entries are in the flow rate units. For unidirectional measurements, set Min Flow to zero. For
bidirectional measurements, set Min Flow to the highest negative (reverse) flow rate expected in
the piping system.
Enter the maximum volumetric flow rate setting to establish filtering parameters. Volumetric
entries are in the flow rate units. For unidirectional measurements, set Max Flow to the highest
(positive) flow rate expected in the piping system. For bidirectional measurements, set Max Flow
to the highest (positive) flow rate expected in the piping system.
Allows very low flow rates (that can be present when pumps are off and valves are closed) to be
displayed as zero flow. Enter values between 1.0…5.0% of the flow range between Min Flow and
Max Flow.
Drives the transmitter and its outputs to the value specified in the Substitute Flow field when
conditions occur that cause low signal strength. A signal strength indication below 5 is generally
inadequate for measuring flow reliably, so generally the minimum setting for low signal cutoff is
5. A good practice is to set the low signal cutoff at approximately 60…70% of actual measured
maximum signal strength. The factory default low signal cutoff is 5.
If the measured signal strength is lower than the low signal cutoff setting, a Signal Strength too Low highlighted in red appears in the text area to the left in the Data Display screen until the
measured signal strength becomes greater than the cutoff value.
Signal strength indication below 2 is considered to be no signal at all. Verify that the pipe is full
of liquid, the pipe size and liquid parameters are entered correctly, and that the transducers
have been mounted accurately. Highly aerated liquids also cause low signal strength conditions.
A value that the analog outputs and the flow rate display to indicate when an error condition in
the transmitter occurs. The typical setting for this entry is a value that will make the instrument
display zero flow during an error condition.
Substitute flow is set as a percentage between MIN RATE and MAX RATE. In a unidirectional
system, this value is typically set to zero to indicate zero flow while in an error condition. In a
bidirectional system, the percentage can be set such that zero is displayed in a error condition.
To calculate where to set the substitute flow value in a bidirectional system, perform the
following calculation:
S ubstitute F low
Some typical settings to achieve zero with respect to MIN RATE and MAX RATE settings are
listed below.
OTE:N*The UltraLink software utility is required to set values outside of 0.0…100.0.
Figure 33: Flow tab
100 -
=
Max imum Flow M inimum Flow
100
×
Max imum Flow
-
Conguration Menu
Page 35 April 2016TTM-UM-00369-EN-03
Conguration Menu
Filtering Tab
The Filtering tab contains several filter settings for the transmitter. These filters can be adjusted to match response times and
data “smoothing” performance to a particular application.
Figure 34: Filtering tab
ParameterMeaningOptionDescription
Time Domain Filter (range 1…256) adjusts the number of raw data sets (the wave forms viewed
on the software Diagnostics Screen) that are averaged together. Increasing this value will provide
greater damping of the data and slow the response time of the transmitter. Conversely, lowering
this value will decrease the response time of the transmitter to changes in flow/energy rate. This
filter is not adaptive, it is operational to the value set at all times.
OTE:NThe transmitter completes a measurement in approximately 350…400 mS. The exact
time is pipe size dependent.
Flow Filter (Damping) establishes a maximum adaptive filter value. Under stable flow conditions
(flow that varies less than the Flow Filter Hysteresis entry), this adaptive filter will increase the
number of successive flow readings that are averaged together up to this maximum value. If
flow changes outside of the flow filter hysteresis window, the filter adapts by decreasing the
number of averaged readings and allows the transmitter to react faster.
The damping value is increased to increase stability of the flow rate readings. Damping values
are decreased to allow the transmitter to react faster to changing flow rates. The factory settings
are suitable for most installations. Increasing this value tends to provide smoother steady-state
flow readings and outputs.
Flow Filter Hysteresis creates a window around the average flow measurement reading allowing
small variations in flow without changing the damping value. If the flow varies within that
hysteresis window, greater display damping will occur up to the maximum values set by the flow
filter entry. The filter also establishes a flow rate window where measurements outside of the
window are examined by the Bad Data Rejection filter. The value is entered as a percentage of
actual flow rate.
For example, if the average flow rate is 100 gpm and the Flow Filter Hysteresis is set to 5%, a
filter window of 95…105 gpm is established. Successive flow measurements that are measured
within that window are recorded and averaged in accordance with the Flow Filter Damping
setting. Flow readings outside of the window are held up in accordance with the Bad Data
Rejection filter.
Flow Filter MinHysteresis sets a minimum hysteresis window that is invoked at sub 0.25 fps (0.08
mps) flow rates, where the “of rate” flow filter hysteresis is very small and ineffective. This value
is entered in pico-seconds (ρsec) and is differential time. If very small fluid velocities are to be
measured, increasing the flow filter minhysteresis value can increase reading stability.
Flow Filter Sensitivity allows configuration of how fast the Flow Filter Damping will adapt in the
positive direction. Increasing this value allows greater damping to occur faster than lower
values. Adaptation in the negative direction is not user adjustable.
Bad Data Rejection is a value related to the number of successive readings that must be
measured outside of the Flow Filter Hysteresis or Flow Filter MinHysteresis windows before the
transmitter will use that flow value. Larger values are entered into Bad Data Rejection when
measuring liquids that contain gas bubbles, as the gas bubbles tend to disturb the ultrasonic
signals and cause more extraneous flow readings to occur. Larger Bad Data Rejection values tend
to make the transmitter more sluggish to rapid changes in actual flow rate.
Time Domain
Filter
Flow Filter
(Damping)
Flow Filter
Hysteresis
Flow Filter
MinHysteresis
Flow Filter
Sensitivity
Bad Data
Rejection
Number of
raw data sets
averaged
together
Maximum
adaptive filter
value
Allows variations
in flow
Minimum
hysteresis window
Sets damping
speed
Sets the number
of readings to
measure
1…256
(Enter a numeric
value)
(Enter a numeric
value)
(Enter a numeric
value)
(Enter a numeric
value)
(Enter a numeric
value)
Page 36 April 2016TTM-UM-00369-EN-03
Conguration Menu
Output Tab
The entries made in the Output tab establish input and output parameters for the transmitter. Select the appropriate function
from the pull-down menu and click Download. When a function is changed from the factory setting, a configuration error
1002 will result. This error will be cleared by resetting the transmitter microprocessor from the Communications/Commands/
Reset Target button or by cycling power to the transmitter. Once the proper output is selected and the microprocessor is
reset, calibration and configuration of the modules can be completed.
Figure 35: Output tab
Parameter MeaningDescription
Min FlowControls how the
4-20 mA output is
spanned
Max FlowControls how the
20 mA output is
spanned
TestEnables calibration
adjustments
The 4-20 mA Output menu applies to all transmitters and is the only output choice for Channel 1.
The Flow at 4 mA / 0 Hz and Flow at 20 mA / 1000 Hz entries set the span for both the 4-20 mA output and the
0…1000 Hz frequency output.
The 4-20 mA output is internally powered (current sourcing) and can span negative to positive ow rates. This
output interfaces with virtually all recording and logging systems by transmitting an analog current that is
proportional to system ow rate. Independent 4 mA and 20 mA span settings are established in rmware using
the ow measuring range entries. These entries can be set anywhere in the – 40…40 fps (–12…12 mps) range.
Resolution of the output is 12 bits (4096 discrete points) and can drive up to a 900 Ohm load. When powered by
a DC supply, the load is limited by the input voltage supplied to the instrument. See Figure 24 on page 26 for
allowable loop loads.
Flow at 4 mA / 0 Hz
Flow at 20 mA / 1000 Hz
The Flow at 4 mA / 0 Hz and Flow at 20 mA / 1000 Hz entries set the span of the 4-20 mA analog output and the
frequency output. These entries are volumetric rate units that are equal to the volumetric units congured as
rate units and rate interval.
Example 1: To span the 4-20 mA output from –100…100 gpm with 12 mA being 0 gpm, enter these values:Flow at 4 mA / 0 Hz = –100.0
Flow at 20 mA / 1000 Hz = 100.0
This setting also sets the span for the frequency output. At –100 gpm, the output frequency is 0 Hz. At the
maximum ow of 100 gpm, the output frequency is 1000 Hz, and in this instance, a ow of zero is represented by
an output frequency of 500 Hz.
Example 2: To span the 4-20 mA output from 0…100 gpm with 12 mA being 50 gpm, enter these values:Flow at 4 mA / 0 Hz = 0.0
Flow at 20 mA / 1000 Hz = 100.0
In this instance, zero ow is represented by 0 Hz and 4 mA. The full scale ow or 100 gpm is 1000 Hz and 20 mA
and a midrange ow of 50 gpm is 500 Hz and 12 mA.
Allows a simulated flow value to be sent from the 4-20 mA output. By incrementing this value, the 4-20 mA
output will transmit the indicated current value.
Click Test to enable the Calibration and Test options.
Page 37 April 2016TTM-UM-00369-EN-03
Calibration Menu
CALIBRATION MENU
The Calibration menu contains a powerful multi-point routine for calibrating the transmitter to a primary
Calibration
measuring standard in a particular installation. To initialize the three-step calibration routine, click Calibration.
Figure 36: Calibration Page 1 of 3
The first screen, Page 1 of 3 establishes a baseline zero flow rate measurement for the transmitter.
Remove the Zero Oset
Because every transmitter installation is slightly different and sound waves can travel in slightly different ways through these
installations, it is important to remove the zero offset at zero flow to maintain the transmitter’s accuracy. The zeroing process
is essential in systems using the DTTS and DTTC transducer sets for accuracy. To establish zero flow and eliminate the offset:
1. Establish zero ow in the pipe (verify that the pipe is full of uid, turn o all pumps, and close a dead-heading valve). Wait
until the delta time interval shown in Current Delta T is stable (and typically very close to zero).
2. Click Set.
3. Click Next when prompted, then click Finish to advance to Page 2 of 3.
Select Flow Rate Units
Use Page 2 of 3 to select the engineering units for the calibration.
1. Select an engineering unit from the Flow Rate Units drop-down menu.
2. Click Next to advance to Page 3 of 3.
Page 38 April 2016TTM-UM-00369-EN-03
Figure 37: Calibration page 2 of 3
Calibration Menu
Set Multiple Flow Rates
Use Page 3 of 3 to set multiple actual flow rates to be recorded by the transmitter.
To calibrate a point:
1. Establish a stable, known ow rate (veried by a real-time primary ow instrument).
2. Enter the actual ow rate in the Flow window and click Set.
3. Repeat for as many points as desired.
4. Click Finish when you have entered all points.
If you are using only two points (zero and span), use the highest flow rate anticipated in normal operation as the calibration
point. If an erroneous data point is collected, remove it (click Edit, select the bad point, click Remove).
Figure 38: Calibration page 3 of 3
Zero values are not valid for linearization entries. Flow meter zero is entered on Page 1 of 3. If a zero calibration point is
attempted, the following error message displays:
Figure 39: Zero value error
Page 39 April 2016TTM-UM-00369-EN-03
Calibration Menu
Target Dbg Data Screen Denitions
FieldDescription
Device TypeThe flow meter type.
Calc CountThe number of flow calculations performed by the transmitter beginning at the time the power to the transmitter was last turned off
Sample CountThe number of samples currently being taken in one second.
Raw Delta T (ηs)The actual amount of time it takes for an ultrasonic pulse to cross the pipe.
Course Delta TThe transmitter series that uses two wave forms. The coarse to find the best delay and other timing measurements and a fine to do
GainThe amount of signal amplification applied to the reflected ultrasound pulse to make it readable by the digital signal processor.
Gain Setting/
Waveform Power
Tx DelayThe amount of time the transmitting transducer waits for the receiving transducer to recognize an ultrasound signal before the
Flow FilterThe current value of the adaptive filter.
SS (Min/Max)The minimum and maximum signal strength levels encountered by the transmitter beginning at the time the power to the
Signal Strength State indicates if the present signal strength minimum and maximum are within a pre–programmed signal strength window.
Sound SpeedThe actual sound speed being measured by the transducers at that moment.
Reynoldsis a number indicating how turbulent a fluid is. Reynolds numbers between 0 and 2000 are considered laminar flow. Numbers
Reynolds FactorThe value applied to the flow calculation to correct for variations in Reynolds numbers.
and then on again.
the flow measurement.
The first number The gain setting on the digital pot (automatically controlled by the AGC circuit). Valid numbers are from 1…100. The
second number The power factor of the current waveform being used. For example, 8 indicates that a 1/8 power wave form is being
used.
transmitter initiates another measurement cycle.
transmitter was last turned off and then on again.
between 2000…4000 are in transition between laminar and turbulent flows and numbers greater than 4000 indicate turbulent flow.
Target Dbg Data
Device Type:
Calc Count:
Raw Delta T (ns):
Gain:
Tx Delay:
Flow Filter:
SS (Min/Max):
Sound Speed:
Reynolds:
Serial No (TFXD):
L
TFX
54247
430
413
80
8.0/92.4
4900
20.15
2.2 CPS
1
3
0-10.73
5
66/8
7
8
910
OK
11
0.7500
1213
Reset
2
4
6
Figure 40: Target Dbg data screen
Saving the Conguration on a PC
The complete configuration of the transmitter can be saved from the Configuration screen. Select File Save button located in
the lower left-hand corner of the screen and name the file. Files are saved as a *.dcf extension. This file may be transferred to
other transmitters or may be recalled should the same pipe be surveyed again or multiple transmitters programmed with the
same information.
Printing a Conguration Report
Select File > Print to print a calibration/configuration information sheet for the installation.
Page 40 April 2016TTM-UM-00369-EN-03
UltraLink Error Codes
Revised 04-06-2015
CodeDescriptionCorrection
0001 Serial number not present
Warnings
Class C
Errors
Class B
Errors
Class A
Errors
Signal Strength is below Signal Strength Cutoff
0010
entry
Measured speed of sound in the liquid is greater
0011
than ±10% of the value entered during
transmitter setup
3002 Invalid system configurationUpload corrected file.
3003 Invalid strategy fileUpload corrected file.
3004 Invalid calibration dataRe-calibrate the system.
3005 Invalid speed-of-sound calibration dataUpload new data.
3006 Bad system tablesUpload new table data.
4001 Flash memory fullReturn transmitter to factory for evaluation
Calibration Menu
Hardware serial number has become inoperative. System
performance will not be influenced.
Low signal strength is typically caused by one of the
following:
» Empty pipe
» Improper programming/incorrect values
» Improper transducer spacing
» Non-homogeneous pipe wall
Removing the resistors from the transducer terminal block
can boost the signal.
Verify that the correct liquid was selected in the BASIC menu.
Verify that pipe size parameters are correct.
Initiate a transmitter RESET by cycling power or by selecting
SYSTEM RESET in the SEC MENU.
Initiate a transmitter RESET by cycling power or by selecting
SYSTEM RESET in the SEC MENU.
Table 6: TFXL error codes
Page 41 April 2016TTM-UM-00369-EN-03
KFactors
KFACTORS
Description
The Kfactor (with regards to flow) is the number of pulses that must be accumulated to equal a particular volume of fluid. You
can think of each pulse as representing a small fraction of the totalizing unit.
An example might be a Kfactor of 1000 (pulses per gallon). This means that if you were counting pulses, when the count total
reached 1000, you would have accumulated one gallon of liquid. Using the same reasoning, each individual pulse represents
an accumulation of 1/1000 of a gallon. This relationship is independent of the time it takes to accumulate the counts.
The frequency aspect of Kfactors is a little more confusing because it also involves the flow rate. The same Kfactor number,
with a time frame added, can be converted into a flow rate. If you accumulated 1000 counts (one gallon) in one minute, then
your flow rate would be one gpm. The output frequency, in Hz, is found simply by dividing the number of counts (1000) by
the number of seconds in a minute (60) to get the output frequency.
1000 ÷ 60 = 16.6666 Hz. If you were looking at the pulse output on a frequency counter, an output frequency of 16.666
Hz would be equal to one gpm. If the frequency counter registered 33.333 Hz (2 × 16.666 Hz), then the flow rate would be
two gpm.
Finally, if the flow rate is two gpm, then the accumulation of 1000 counts would take place in 30 seconds because the flow
rate, and hence the speed that the 1000 counts is accumulated, is twice as great.
Calculating KFactors
Many styles of transmitters are capable of measuring flow in a wide range of pipe sizes. Because the pipe size and volumetric
units the transmitter will be used on vary, it may not possible to provide a discrete Kfactor. In the event that a discrete Kfactor
is not supplied then the velocity range of the transmitter is usually provided along with a maximum frequency output.
The most basic Kfactor calculation requires that an accurate flow rate and the output frequency associated with that flow
rate be known.
Example 1
Known values are:
Frequency = 700 Hz
Flow Rate = 48 gpm
700 Hz × 60 sec = 42,000 pulses per min
K factor
Example 2
Known values are:
Full Scale Flow Rate = 85 gpm
Full Scale Output Frequency = 650 Hz
650 Hz × 60 sec = 39,000 pulses per min
K factor
The calculation is a little more complex if velocity is used because you first must convert the velocity into a volumetric flow
rate to be able to compute a Kfactor.
To convert a velocity into a volumetric flow, the velocity measurement and an accurate measurement of the inside diameter
of the pipe must be known. Also needed is the fact that one US gallon of liquid is equal to 231 cubic inches.
Example 3
Known values are:
Velocity = 4.3 ft/sec
Inside Diameter of Pipe = 3.068 in.
42,000 pulses per min
48 gpm
39,000 pulses per min
85 gpm
875 pulses per gallon==
458.82 pulses per gallon==
Page 42 April 2016TTM-UM-00369-EN-03
Find the area of the pipe cross section.
99.1 gpm
2
πr
Area =
2
3.068
Area
= π= π x
2
2.35 = 7.39 in
Find the volume in one foot of travel.
KFactors
2
2
7.39 in2 x 12 in. (1 ft)ft=
88.71in
What portion of a gallon does one foot of travel represent?
231 in
3
= 0.384 gallons
3
88.71 in
So for every foot of fluid travel 0.384 gallons will pass.
Figure 43: Control drawing, IS barrier DTT transducers
3' MIN.
(2 PLACES)
(0.93 METERS)
1098
11
12
B
A
Control Drawings
A
NOTES: UNLESS OTHERWISE SPECIFIED
3. RADII TO BE .005/.010
2. FINISH TO BE 63
1. REMOVE ALL BURRS AND BREAK SHARP EDGES .005/.010
12
11
1098
7
6
MAXIMUM AMBIENT TEMPERATURE: -40° TO +85°C
G
CLASS I, DIVISION 1 GROUPS C AND D
H
THIS DRAWING IS PROPRIETARY TO RACINE FEDERATED INC. RECEIPT OR POSSESSION CONFERS NO RIGHT TO USE
THE SUBJECT MATTER OF THIS DRAWING OR TECHNICAL INFORMATION SHOWN; NOR THE RIGHT TO REPRODUCE THIS
DRAWING OR ANY PART EXCEPT FOR THOSE SUPPLIERS OF RACINE FEDERATED INC. WHO RECEIVE A WRITTEN
REQUEST FOR MANUFACTURE OR SIMILAR USE.
HAZARDOUS (CLASSIFIED) LOCATION
B
C
GREASE SUPPLIED, PER INSTALLATION
PIPE WITH RTV OR SILICONE
MANUAL TFXD O&M.
MODEL NO: DTTN-xxx-Axxx-F
(0.93 METERS)
(2 PLACES)
3' MIN.
(RG-59/U COAX, BELDEN 9463, OR
BELDEN 9463DB OR EQUAL ONLY)
B
1
(302 METERS)
PER INSTALLATION
NOTES 6 & 7
SEAL OFF CONDUIT
990' MAX.
SENSING SURFACE: COUPLE TO
DYNASONICS DTT SERIES
TRANSDUCERS
D
D002-1401-003
FLEXIBLE ARMORED
CONDUIT SUITABLE
FOR INCIDENTAL AND
TEMPORARY SUBMERSION
E
D002-1201-002
TEE FITTING
SYSTEMS FOR HAZARDOUS (CLASSIFIED) LOCATIONS.
ANSI / ISA RP12.6 INSTALLATION OF INTRINSICALLY SAFE
F
7. INSTALLATION SHALL BE IN ACCORDANCE WITH THE
6. INSTALLATION IN CANADA SHOULD BE IN ACCORDANCE WITH THE CANADIAN ELECTRICAL CODE, CSA C22.1, PART 1, APPENDIX F.
5. ASSOCIATED APPARATUS MANUFACTURER'S INSTALLATION DRAWING MUST BE FOLLOWED WHEN INSTALLING THIS EQUIPMENT.
2. WARNING - TO PREVENT IGNITION OF FLAMMABLE ATMOSPHERES, DISCONNECT POWER BEFORE SERVICING.
4. NO REVISION TO DRAWING WITHOUT PRIOR CSA-INTERNATIONAL APPROVAL.
1. REFER TO TRANSMITTER'S INSTALLATION MANUAL FOR TRANSDUCER LOCATION AND MOUNTING INSTRUCTIONS.
3. WARNING: SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY.
NATIONAL ELECTRICAL CODE (ANSI / NFPA 70) SECTIONS 504 AND 505 AND THE
8. THE MAXIMUM NON-HAZARDOUS LOCATION VOLTAGE IS 250V AC/DC.
5
43
THIS DRAWING WAS DONE ON AUTOCAD AND
CAN ONLY BE REVISED ON AUTOCAD SYSTEM.
ANY MANUAL CHANGES DONE TO THIS DRAWING
WILL BE IGNORED UNLESS AUTHORIZED.
SCALE:SHEET:
2
D
NONEC2 OF 2
59380
CURRENT REV:
D091-1053-005
1
SEE ABOVE
DATE:
I.S. BARRIER & DTT TRANSDUCER
CODE I.D. NO.SIZE:PART NUMBER:
MATERIAL:
REVISED BY:
SUPERSEDES:
N.GARMON 12/23/11
CONTROL DRAWING
A
.00 ±.010, .000 ±.005
ANGLES ±1/2°
ENGINEER:
NAME:
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
TOLERANCE ON DECIMALS
DRAWN BY:
CHECKED BY:
T. PAUL
11/28/01
DIVISION OF RACINE FEDERATED, INC.
TEL: 262-639-6770 FAX: 262-639-9857
RACINE, WISCONSIN U.S.A.
PART NUMBER:
I.S. WIRING
D091-1053-005
B
I.S. MODULE
PART NO. D070-1010-001
C
(MTG. HOLES)
6.26
MODEL: 070-1010-002 I.S. Barrier-Ultrasonics
SAFEHAZ
SAFE
HAZ
D003-0905-117
(MTG. HOLES)
3.60
D
C
1
E
Figure 44: Control drawing, IS barrier DTT transducers flexible conduit
10' MAX
MODEL D070-1010-002
F
RED/BLUE
BLACK/CLEAR
MANUAL
RED/BLUE
BLACK/CLEAR
DYNASONICS I.S. BARRIER
TRANSMITTER PER
CONNECT TO
INSTALLATION
MAXIMUM AMBIENT TEMPERATURE: -40°C TO 50°C
NON-HAZARDOUS LOCATION
3456109871211
ZONE REVDESCRIPTIONE.C.N. DATE APPROVAL
ALL A
C6 B
E3 C 1.) PICTORIAL CHANGES TO SHOWR1412 12/23/11
UPDATED PER CSA
1.) ADDED BELDEN 9463 & 9463DB
OR EQUAL
CORRECT ARTWORK ON DECAL
2
REVISIONS
R1005 10/25/10
- 11/11/04
1
G
H
Page 53 April 2016TTM-UM-00369-EN-03
Specications
SPECIFICATIONS
System
Liquid TypesMost clean liquids or liquids containing small amounts of suspended solids or gas bubbles
Velocity Range0.1…40 FPS (0.03…012, MPS)
DTTR/DTTN/DTTH
Flow Accuracy
Ambient
Temperature
Repeatability±0.5% of reading
Transducer Type Clamp-on, uses time-of-flight ultrasonics
ProtectionReverse polarity, surge suppression
Certifications
DTTS/DTTC
General purpose
Hazardous locations integral mount
Hazardous locations DTTN
Remote mount transmitter and
integral mount transmitter with
transducers
Hazardous location transducers
(DTTN with I.S. option)
Transmitter
±1% of reading at rates > 1 FPS (0.3 MPS), ±0.01 FPS (±0.003 MPS) at rates lower than 1 FPS
1 in. (25 mm) and larger – ±1% of reading from 10…100% of measuring range, or ±0.01 FPS
(0.003 MPS) at rates lower than 10% of measuring range; 3/4 in. (19 mm) and smaller – ±1% of
full scale
–40…185° F (–40…85° C)
0…105° F (–17…40° C)
–40…185° F (–40…85° C)
General purpose standards: UL 61010-1 and CSA C22.2 No. 61010-1
Hazardous location designation and standards:
Class I, Division 2, Groups C and D
UL1604, CSA C22.2 No. 213
Hazardous location designation and standards:
Class I, Division 1, Groups C and D, T5
UL913:2002, UL916
CAN/CSA C22.2 No. 0-10, C22.2 No. 142-M1987, C22.2 No. 157-92
Install with I.S. barrier D070-1010-002
Power
Requirements
Display
Enclosure
Rating
Units of
Measure
Outputs
12…28V DC @ 0.25A
Type
Rate
Total
NEMA Type 3 (Type 3) ABS, PVC and Ultem (integral system), brass or SS hardware
Engineering units
Rate
Analog and TTL
Frequency
(Output option 1)
Totalizer pulse
(Output option 3)
2 line x 8 character LCD
8 maximum digits with lead zero blanking
8 maximum digits with exponential multipliers from –1…6
Feet, US gallons, cubic feet, million gallons, barrels (liquid and oil), acre-feet, lb, meters, cubic meters, liters,
million liters, kilograms
Second, minute, hour, day
Selectable turbine meter simulation or square wave
0…1000 Hz, duty cycle 50% +/- 10%
Square wave: 5V DC
Turbine meter simulation: 500 mVpp minimum
Source or sink, 5V DC, 2 mA maximum, pulse duration 30 ms, external resistor
Normal state high with pulses low
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Transducers
Specications
DTTRNEMA 6*/IP67
DTTCNEMA 6*/IP67
Transducer
Construction
Cable Length990 ft (300 meter) max. in 10 ft (3 m) increments; Submersible Conduit limited to 100 ft (30 m)
Pipe/Tubing Sizes1/2 in. (12 mm) and larger
Pipe/Tubing Materials Carbon steel, stainless steel, copper and plastic
DTTN I.S.NEMA 6P*/IP68
DTTHNEMA 6*/IP67
DTTSNEMA 6*/IP67
*NEMA 6 units: to a depth of 3 ft (1 m) for 30 days max. NEMA 6P units: to a depth of 100 ft (30 m) seawater equivalent
density indefinitely.
PBT glass filled, Ultem, Nylon cord grip
PVC cable jacket; –40…250° F (–40…121° C)
CPVC, Ultem, Nylon cord grip
Polyethylene cable jacket; –40…185° F (–40…85° C)
CPVC, Ultem, Nylon cord grip
Polyethylene cable jacket; –40…185° F (–40…85° C)
PTFE, Vespel, Nickel-plated brass cord grip
PFA cable jacket; –40…350° F (–40…176° C)
PVC, Ultem, Nylon cord grip
PVC cable jacket; –40…140° F (–40…60° C)
Software Utilities
ULTRALINK Used to configure, calibrate and troubleshoot flow meter. Compatible with Windows 2000, Windows XP, Windows Vista and Windows 7
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Y
C
Transit Time Ultrasonic Flow Meters, TFXL Meter
PART NUMBER CONSTRUCTION
Dynasonics Ultrasonic Flow Meters
DTFXL--
TFXL - Transit Time
Model
Transit Time Ultrasonic Flow TransmitterDTFXL
Display Options
ABS Enclosure - Blind (No Display) C/US1
ABS Enclosure - With Rate and Total Display C/US2
Pipe Size/Measurement Range
1/2 Inch ANSI PipeA
3/4 Inch ANSI PipeB
1 Inch ANSI PipeC
1-1/4 Inch ANSI PipeD
1-1/2 Inch ANSI PipeE
2 Inch ANSI PipeF
1/2 Inch Copper TubeG
3/4 Inch Copper TubeH
1 Inch Copper TubeI
1-1/4 Inch Copper TubeJ
1-1/2 Inch Copper TubeK
2 Inch Copper TubeL
1/2 Inch O.D. Std TubeM
3/4 Inch O.D. Std TubeN
1 Inch O.D. Std TubeP
1-1/4 Inch O.D. Std TubeQ
1-1/2 Inch O.D. Std TubeR
2 Inch O.D. Std TubeS
Remote Mount | Use wit
Remote Mount | Use with DTTS/C
h DTTR/N/H
X
Connector Options
None - (Two) 1/2 inch Conduit Holes N
(Two) Water Tight Cable ClampsA
(Two) 1/2 Inch Flexible Conduit ConnectorsD
Output Options
4 … 20 mA and TTL Pulse1
Totalizer Pulse3
Reserved
None (Reserved)N
Options
NoneN
CPVC Transducer Material | Integral Mount Options Only
I.S. DTTN Transducer | Remote Option X Only