CLAMP-ON ULTRASONIC
FLOW FOR LIQUIDS
FDT-40 Series
TM
U Bi-Directional
Flow Measurement
U Rugged, Aluminum
Enclosure
U Rate and Total
Backlit Display
U 4 to 20 mA and Dual
Alarm Outputs
U USB Programming Port
U RS485 MODBUS
Network Connection
®
FDT-40 and FDT-46-ANSI both
shown smaller than actual size.
FDT-40 Series ultrasonic flow and
energy meters clamp on to the
outside of pipes and do not come
in contact with the internal liquid.
The technology has inherent
advantages over alternate devices
including: low-cost installation, no
pressure head loss, no moving parts
to maintain or replace, no fluid
compatibility issue, and a large,
bi-directional measuring range that
ensures reliable readings even at
very low and high flow rates.
FDT-40 Series is available in a
variety of configurations that
permit the user to select a meter with
features suitable to meet particular
application requirements.
SPECIFICATIONS
System
Liquid Types: Most clean liquids or
liquids containing small amounts of
suspended solids or gas bubbles
Velocity Range: Bi-directional to
greater than 40 FPS (12 MPS)
Flow Accuracy:
Larger Than 50 mm (2"): ±1% of
reading or ±0.01 FPS (0.003 MPS),
whichever is greater
25 to 50 mm (1 to 2"): ±1% of
reading or ±0.04 FPS (0.012 MPS),
whichever is greater
¾" (19 mm) and Smaller: ±1% of
full scale
Sensitivity Flow: 0.001 FPS
(0.0003 MPS)
Repeatability: 0.5% of reading
Transmitter
Power Requirements (AC): 95 to
264 Vac 47 to 63 Hz @ 17 VA maximum
standard, 20 to 28 Vac 47 to 63 Hz
@ 0.35 A maximum (“-24VAC” models),
10 to 28 Vdc @ 5 W maximum
(“-VDC” models)
Protection: Auto resettable fuse, reverse
polarity and transient suppression
Display: Two line LCD, LED backlit; top
row 18 mm (0.7") height, 7-segment;
bottom row 9 mm (0.35") height,
14-segment
Icons: RUN, PROGRAM, RELAY1,
RELAY2
Flow Rate Indication: 8-digit positive,
7-digit negative maximum; auto decimal,
lead zero blanking
Flow Totalizer: 8-digit positive, 7-digit
negative maximum (re-set via keypad
press, software, network command or
momentary contact closure
Enclosure NEMA 4 (IP65) Construction:
Powder-coated aluminum, polycarbonate,
stainless steel, polyurethane, nickel-plated
steel mounting brackets
1
Size (Electronic Enclosure Only):
152 W x 112 H x 56 mm D
(6.0 x 4.4 x 2.2")
Conduit Holes: (2) ½ NPT female
(1) ¾ NPT female
Temperature: -40 to 85ºC
(-40 to 185ºF)
Configuration: Via optional keypad or
PC running software (Note: not all
configuration parameters are available
from the keypad – i.e. flow and
temperature calibration and advanced
filter settings)
Engineering Units Flow Meter:
Feet, gallons, cubic feet, million gallons,
barrels (liquid and oil), acre-feet, lbs,
meters, cubic meters, liters, million
liters, kg
Inputs/Outputs USB 2.0:
For connection of a PC running
configuration utility
RS485: MODBUS RTU command set
4 to 20 mA: 12-bit, internal power,
can span negative to positive flow/
energy rates
0 to 1000 Hz: Open-collector, 12-bit,
can span negative to positive rates;
square-wave or turbine meter
simulation outputs
106.7
(4.20)
110
(4.32)
(2.12)
Pipe Mount
Wall Mount
152.4 (6)
106.7
(4.20)
110
(4.32)
53.8
(2.12)
Pipe Mount
Wall Mount
C (Min Clearance)
B
B
A
D
D
C A C
FDT-46-ANSI, -CP U-Bolt Connections
ANSI/DN & Copper 50 mm (2") Models
FDT-41 thru FDT-46 (except U-bolt)
Pipes/Tubing 12 to 50 mm (½ to 2")
152.4 (6)
165.1 (6.5)
106.7
(4.20)
110
(4.32)
58.4
(2.3)
35.1
(1.38)
73.7
(2.90)
30.5
(1.20)
53.8
(2.12)
4.8
(0.19) Dia.
2 Mounting
Holes
A
Dimensions: mm (inches)
Model No. A B C
FDT-47
FDT-47-HT
FDT-48
(3.40) (2.94) (3.20)
74.9 69.8 76.2
(2.95) (2.75) (3)
86.4 74.7 81.3
FDT-47, 48
Pipes larger than 50 (2)
B
Tranducer Dimensions: mm (inch)
Pipe Size Pipe Material A B C D Measuring Range
ANSI/DN 62.5 (2.46) 59.9 (2.36) 67.6 (2.66) 21.3 (0.84) 2 to 38 GPM/8 to 144 LPM
1
⁄2"
3
⁄4"
1"
11⁄4"
11⁄2"
2"
Copper 62.5 (2.46) 59.9 (2.36) 84.6 (3.33) 15.9 (0.63) 1.8 to 27 GPM/7 to 102 LPM
Tubing 62.5 (2.46) 57.9 (2.28) 94.5 (3.72) 12.7 (0.50) 1.5 18 GPM/6 to 68 LPM
ANSI/DN 62.5 (2.46) 65.3 (2.57) 67.6 (2.66) 26.7 (1.05) 2.75 to 66 GPM/10 to 250 LPM
Copper 62.5 (2.46) 63.5 (2.50) 90.4 (3.56) 22.2 (0.88) 2.5 to 54 GPM/10 to 204 LPM
Tubing 62.5 (2.46) 63.5 (2.50) 90.4 (3.56) 19 (0.75) 2.5 to 45 GPM/10 to 170 LPM
ANSI/DN 62.5 (2.46) 74.2 (2.92) 72.6 (2.86) 33.4 (1.32) 3.5 to 108 GPM/13 to 409 LPM
Copper 62.5 (2.46) 72.9 (2.87) 96.5 (3.80) 28.6 (1.13) 3.5 to 95 GPM/13 to 320 LPM
Tubing 62.5 (2.46) 69.9 (2.75) 96.5 (3.80) 25.4 (1) 3.5 to 85 GPM/13 to 320 LPM
ANSI/DN 71 (2.80) 80.8 (3.18) 79.8 (3.14) 42.2 (1.66) 5 to 186 GPM/19 to 704 LPM
Copper 62.5 (2.46) 76.2 (3) 102.6 (4.04) 43.9 (1.38) 4.5 to 152 GPM/17 to 575 LPM
Tubing 62.5 (2.46) 76.2 (3) 102.6 (4.04) 31.8 (1.25) 4 to 136 GPM/15 to 514 LPM
ANSI/DN 76.7 (3.02) 86.9 (3.42) 84.6 (3.33) 48.3 (1.90) 6 to 250 GPM/23 to 946 LPM
Copper 68.8 (2.71) 72.6 (2.86) 108.7 (4.28) 41.3 (1.63) 5 to 215 GPM/19 to 814 LPM
Tubing 68.8 (2.71) 84.1 (3.31) 108.7 (4.28) 38.1 (1.5) 5 to 200 GPM/19 to 757 LPM
ANSI/DN 94 (3.70) 86.9 (3.42)* 139.7 (5.50) 60.3 (2.375)* 8 to 420 GPM/30 to 1590 LPM
Copper 94 (3.70) 85.9 (3.38)* 139.7 (5.50) 54 (2.125)* 8 to 375 GPM/30 to 1419 LPM
Tubing 81.5 (3.21) 98 (3.85) 120.7 (4.75) 50.8 (2) 8 to 365 GPM/30 to 1381 LPM
* Varies due to u-bolt configuration.
Dimensions:
mm (inch)
152.4 (6)
165.1 (6.5)
58.4
(2.3)
4.8
(0.19) Dia.
2 Mounting
Holes
35.1
(1.38)
2
73.7
(2.90)
30.5
(1.20)
106.7
(4.20)
110
(4.32)
53.8
B
D
A C
FDT-46-ANSI, -CP U-Bolt Connections
ANSI/DN & Copper 50 mm (2") Models
35.1
(1.38)
73.7
(2.90)
30.5
(1.20)
53.8
(2.12)
FDT-41 thru FDT-46 (except U-bolt)
FDT-41 thru FDT-46 (except U-bolt)
Pipes/Tubing 12 to 50 mm (1/2 to 2")
Pipes/Tubing 12 to 50 mm (½ to 2")
FDT-46-ANSI, -CP U-bolt Connections
FDT-46-ANSI, -CP U-Bolt Connections
ANSI/DN and Copper 50 mm (2") Models
ANSI/DN & Copper 50 mm (2") Models
B
D
A
Two Alarm Outputs: Open-collector,
configure as rate alarm, signal strength
alarm or totaliz
Transducers
Construction
Standard (FDT
NEMA 6 (IP67), PVC, PEI, Nylon cord
gr
ip, PVC cable jacket
Temperature:
(-40 to 140°F)
FDT-41 thru 46 with
FDT-47 and FDT-48: NEMA 6 (IP67),
CPVC, PEI, Nylon cord grip, PVC
cable jacket
Temperature: -40 to 90°C
(-40 to 194°F)
-47 “-HT”: NEMA 6 (IP67), PTFE,
FDT
polyimide, Nickel-plated
brass cord grip, PFA cable jacket
Temperature: -40 to 176°C
(-40 to 350°F)
Frequenc
FDT41 thru 46: 2 MHz
FDT-47: 1 MHz
FDT-48: 500 KHz
Cables:
78 Ω (optional armored conduit)
Cable Length: Standard 6 m (20')
300 m (990') maximum in 3 m (10')
increments
Software Utilities
Utilized to configure, calibrate and
troubleshoot flowmeters. Connection
via USB A/B cable; software is
compatible with Windows 2000,
Windows XP, Windows Vista
Windows
RS485 Network
All FDT-40 meters come equipped
with RS485 drivers and utilize a
MODBUS RTU command set (data can
be returned in single-precision, doub
precision, integer or floating point
values). Up to 126 units products can
be run on a single daisy-chain network
and be individually queried f
positive flow accumulator, negative flow
accumulator and signal strength. Flow
accumulators can be cleared at
discrete addresses or globally
RS485 networ
direct to Excel, application.
er pulse
-41 thru 46):
-40 to 60°C
“-HT” option,
y:
RG59 coaxial, 75 Ω or twin axial,
®
®
7
k is also compatible with
and
or flow rate,
. The
C
D
A C
To Order
Model No.
FDT-40
FDT-40-VDC
FDT-40-24VAC
Comes complete with operator’s manual.
Transducers Accessories (Display Sold Separately)
Model No. Description
FDT-41-ANSI-HT Remote High Temperature transducer for 1⁄2" ANSI pipe
FDT-42-ANSI-HT Remote High Temperature transducer for 3⁄4" ANSI pipe
FDT-43-ANSI-HT
FDT-44-ANSI-HT Remote High Temperature transducer for 11⁄4" ANSI pipe
FDT-45-ANSI-HT Remote High Temperature transducer for 11⁄2" ANSI pipe
FDT-46-ANSI-HT Remote High Temperature transducer for 2" ANSI pipe
FDT-41-CP-HT
FDT-42-CP-HT Remote High Temperature transducer for 3⁄4" copper pipe
FDT-43-CP-HT Remote High Temperature transducer for 1" copper pipe
FDT-44-CP-HT Remote High Temperature transducer for 11⁄4" copper pipe
FDT-45-CP-HT
FDT-46-CP-HT
FDT-41-TUBE-HT Remote High Temperature transducer for 1⁄2" tubing
FDT-42-TUBE-HT Remote High Temperature transducer for 3⁄4" tubing
FDT-43-TUBE-HT Remote High Temperature transducer for 1" tubing
FDT-44-TUBE-HT
FDT-45-TUBE-HT Remote High Temperature transducer for 11⁄2" tubing
FDT-46-TUBE-HT Remote High Temperature transducer for 2" tubing
FDT-47-HT Remote High Temperature transducer for 2 to 24" pipe
le-
FDT-48
FDT-40-PC-CABLE
FDT-GREASE
FDT-HT-GREASE
FDT-NS-GREASE
Transducers come with mounting gel.
For transducers with 30 m (100') cable add “-100FT” to the transducer model number for
additional cost.
Ordering Example: FDT-40, flowmeter display/electronics 95 to 264 Vac, and FDT-42ANSI remote transducer for
Desription
Flow meter display 95 to 264 Vac
Flow meter display 10 to 28 Vdc
Flow meter display 24 Vac
Remote High Temperature transducer for 1" ANSI pipe
Remote High Temperature transducer for 1⁄2" copper pipe
Remote High Temperature transducer for 11⁄2" copper pipe
Remote High Temperature transducer for 2" copper pipe
Remote High Temperature transducer for 11⁄4" tubing
Remote transducer for pipes over 24"
Optional USB PC programming cable
Replacement acoustic couplant 150 g (5.3 oz)
High temperature acoustic couplant 56 g (2 oz)
Non-silicone acoustic couplant 79 g (2.8 oz)
³⁄₄
" ANSI pipe.
B
3
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