Omega FDT-47, FDT-47-HT, FDT-48 Datasheet

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