GE
Sensing & Inspection Technologies
™
AquaTrans
Panametrics Liquid Flow
Ultrasonic Transmitter
UTX878
Applications
The AquaTrans UTX878 is a loop-powered, fullfeatured clamp-on ow ultrasonic transmitter
system for ow measurement of:
• Potable water
• Wastewater
• Discharge water
• Treated water
• Cooling and heating water
• Other liquids
Features
• 4-wire HART output
• 2-wire standard output option
• Low power consumption
• Suitable for pipe sizes from 1/2 in to 20 in (13 mm
to 500 mm) diameter
• Full external keypad
• Large integral display
• Simple meter and transducer installation and
setup
• Velocity, volumetric and totalized ow
• Economical non-intrusive ow measurement
The AquaTrans UTX878 ow ultrasonic transmitter
combines the simplicity of a loop-powered meter
installation with proven, advanced clamp-on ultrasonic
ow transmitter technology. It provides customers with
an economical solution for ow measurement in pipes
up to 20 in (500 mm).
HART Output or 2-wire Standard
The AquaTrans UTX878 comes with HART protocol as an
available output. This protocol requires the meter to be
installed as a 4-wire device. The UTX878 is also available
as a 2-wire device without HART; the 2-wire UTX878 may
be preferable when replacing existing 2-wire devices.
Two-Channel Model
An optional second channel provides the capability
to measure ow at a single point to obtain two-path
averaging of the ow measurement for increased
accuracy.
Uses the Transit-Time Flow
Measurement Technique
The Correlation Transit-Time™ technique uses a pair of
transducers with each transducer sending and receiving
coded ultrasonic signals through the uid. When the
uid is owing, signal transit-time in the downstream
direction is shorter than in the upstream direction; the
dierence between these transit-times is proportional to
the ow velocity. The AquaTrans UTX878 measures the
time dierence and uses programmed pipe parameters
to determine ow rate and direction.
Flowmeter Transducers
Fluid
Flow
Ultrasonic Signal Path
Transit-time ow measurement technique
UTX878 Specications
Operation and Performance
Fluid Types
Acoustically conductive uids, including most clean
liquids, and many liquids with entrained solids or gas
bubbles. Maximum void fraction depends on transducer,
interrogation carrier frequency, path length and pipe
conguration.
Upstream
transducer
Downstream
transducer
Pipe Sizes
• 1/2 in to 1.5 in (13 mm to 40 mm): UTXDR-408
• 1 in to 4 in (25 mm to 100 mm): UTXDR-407
• 2 in to 12 in (50.8 mm to 300 mm): UTXDR-410
• 8 in to 20 in (200 mm to 500 mm): UTXDR-409
Pipe Materials
All metals and most plastics. Consult GE for concrete,
composite materials, and highly corroded or lined pipes.
Flow Accuracy (Velocity)
0.5% of reading (achievable with process calibration)
Pipe ID>6 in (150 mm): ±1% to 2% of reading typical
Pipe ID<6 in (150 mm): ±2% to 5% of reading typical
Accuracy depends on pipe size and installation and
whether measurement is one-path or two path.
Repeatability
±0.1% to 0.3% of reading
Range (Bidirectional)
–40 ft/s to 40 ft/s (–12.2 m/s to 12.2 m/s)
Rangeability (Overall)
400:1
Specif ications assume a fully developed ow prole
(typically 10 diameters upstream and 5 diameters
downstream of straight pipe run) and ow velocity greater
than 1 ft/s (0.3 m/s).
Schematic of loop-power
Electronics
Flow Measurement
Patented Correlation Transit-Time mode
Enclosure
Epoxy-coated aluminum weatherproof Type 4X/IP67
Dimensions (h x w x d)
Size 8.8 in x 8.2 in x 3.6 in (220 mm x 210 mm x 90 mm,
weight 3.9 lb (1.77 kg)
Display
128 x 64 pixel LCD graphic display
Keypad
6 button external keypad
Power Supply
15 to 30 VDC loop power
Power Consumption
700 mW maximum
Memory
FLASH memory; eld upgradable
Operating Temperature
–4°F to 140°F (–20°C to 60°C)
Measurement Parameters
Volumetric ow, totalized ow and ow velocity
Storage Temperature
–4°F to 158°F (–20°C to 70°C)
Standard Inputs/Output
• One 2-wire 4 to 20 mA output
• Optional 4-wire HART 4-20 mA output
Digital Interface
RS232
European Compliance
System complies with EMC Directive 89/336/EEC
Clamp-On Flow Ultrasonic Transducers
Area Classication
General purpose
Operating Temperature
UTXDR-407 and 408: -4°F to 250°F (-20°C to 120°C)
UTXDR-407 and 408 IP67
UTXDR-409 and 410 IP66
UTXDR-409 and 410: -4°F to 300°F (-20°C to 150°C)
Transducer Cable
Mounting
Stainless steel strap
25 ft. (7.5 m) standard cable with transducers
Optional 50 ft. (15 m) or 100 ft. (30 m) lengths with
transducers
Ordering Information
Model
UTX Output
A Single looped powered 4-20 mA output; 2-wire device
H Hart, Single 4-20 mA loop; 4-wire device)
Cable Connection
CG Plastic cable glands
NPT 1/2” NPTF
M20 M20
BCG Nickel-plated Brass cable glands
Option Card
00 No option card
TT Two totalizers
Transducer
407 2 MHz transducer for 0.5 - 6 inch (13-150 mm) pipe
408 4 MHz transducer for 0.5 - 1.5 inch (13-50 mm) pipe
409 500 kHz transducer/clamping xture for 4 - 20 inch (80-500 mm) pipe
410 1 MHz transducer/clamping xture for 2 - 12 inch (50-300 mm) pipe
Cable Length
25 25 ft (7.5 meters) of cable
50 50 ft (15 meters) of cable
100 100 ft (30 meters) of cable
Pipe OD
A Straps for pipe OD from 0.5 in. (13 mm) to 2 in. (50 mm)
B Straps for pipe OD from 2 in. (50 mm) to 6 in. (125 mm)
C Straps for pipe OD from 6 in. (125 mm) to 12 in. (300 mm)
D Straps for pipe OD from 12 in. (300 mm) to 20 in. (500 mm)
UTX - - - - -
www.gesensinginspection.com
920-004E
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