Sono-Trak Doppler Ultrasonic Flow Meter

The Sono-Trak™ Doppler ultrasonic flow meter is a non-invasive, ultrasonic flow metering system that uses advanced ultrasonic technology for higher-accuracy measurement. Based on the principles of the Doppler effect, it calculates flow velocity by sensing and measuring the frequency shift in motion from reflective materials within a liquid.

The Sono-Trak Doppler flow meter is based on advanced signal processing technology that dramatically increases the accuracy of flow rate measurement. Its accuracy ratings are typically ±2.0% of full scale as a function of flow profile, and repeatability is ±0.1% of reading.

This flow metering system uses two transducers mounted side by side, operating as ultrasonic signal transmitters and receivers. The measurement is obstructionless, and produces no associated pressure drops. With no moving parts to wear over time, the Sono-Trak Doppler flow meter is virtually maintenance-free, and is available in both fixed and portable units.

Features


Reliable and Rugged

Automatic gain control—as flow profile changes so does the electronics signal Noise immunity to variable frequency drive (VFD) User-friendly, easy-to-program display with on-screen prompting and keyboard entry Digital signal—allows for cable lengths up to 5000 ’ (1524 m) Available in a fixed or portable unit
Benefits
Non-invasive design Low-cost, simple installation Fits outer diameter pipe sizes from 0.5 to 100” (13 to 2540 mm) Rugged and maintenance-free—no moving parts No pressure drop and no costly process shutdowns Reliable and accurate flow readings—provides ±2.0% full-scale accuracy and ±0.1% repeatability
Suitable Fluids and Applications
The Sono-Trak Doppler flow meter is suitable for fluids containing suspended particles or bubbles with at least 35 parts per million (ppm) at 40 microns or larger, and a minimum of at least 0.2% density difference from liquid medium. Some of the materials that are well suited for measuring include: Agricultural Water Abrasives Asphalts Concrete Dredge flows Drilling mud Extremely viscous substances Grout Hazardous wastes Large contaminates Municipal sludge and wastes Paper pulp Rendering products Reservoirs and runoffs Rivers and Streams Sludge Slurries Suspended solids
Display Module
A user-friendly, easy-to-read display provides continuous, real-time flow rate, velocity, and totalization measurements in user-selectable engineering units. On-screen prompting and a full-function, 32-character, dual-line, alphanumeric keypad entry make programming effortless The display reads pulse, voltage, and analog rates, and it includes built-in high/low limit alarms, 4 to 20 mA signals, and an echo light to indicate whether the signal is producing accurate readings.

Fluid Conditions
Measured fluid	Homogenous liquids with Newtonian flow profiles (sludges, slurries, sewage, wastewater, and other fluids containing suspended particles)
State of flow	Axis-symmetric flow in pipe filled with fluid
Fluid type	Liquids containing suspended particles of at least 35 ppm at 40 microns at 0.2% density of undissolved solids or air bubbles
Measurable fluid temperature range	-40 to 300°F (-40 to 149 °C)
Velocity range	0.1 to 50 fps (0.04 to 15.25 mps)
Flow sensitivity	0.05 fps (0.02 mps)
Piping conditions
Pipe diameter range	Velocity indication	0.5 to 300" (13 to 7620 mm) diameter
	Volumetric indication	0.5 to 100" (13 to 2540 mm) diameter
Pipe material	Including, but not limited to, carbon steel, stainless steel, ductile iron, cast iron, FRP, PVC, fiberglass, Teflon®, and most concrete-lined or coated pipes
Pipe linings	Including, but not limited to, tar, epoxy, mortar, rubber, Teflon®, PVC, and glass

Measurement Accuracy
Accuracy Note: Accuracy is a function of flow profile.	Typically ±1% to ±3% of full scale, based on straight run of piping of 20 diameters upstream and 10 diameters downstream
	±3% to ±5% of full scale based on straight run of 10 diameters upstream and 5 diameters downstream
	±5% to ±10% of full scale based on straight run of 5 diameters upstream and 3 diameters downstream
Linearity	Homogenous liquids with Newtonian flow profiles (sludges, slurries, sewage, wastewater, and other fluids containing suspended particles)
Repeatability	Liquids containing suspended particles of at least 35 ppm at 40 microns at 0.2% density of undissolved solids or air bubbles
Response time	-40 to 300°F (-40 to 149 °C)

Electronics Enclosure
Dimensions	9.21" (H) x 7.21" (W) x 5.09" (D) (285 mm x 183 mm x 129 mm)
Weight	12 lb (5.45 kg)
Materials	Flame retardant, fiberglass-reinforced polyester with lockable latch, gray in color
Environmental rating	NEMA 4X (IP65
Ambient temperature range	-13 to 132 ° F (-25 to 55 ° C)
Ambient humidity	Less than 100% RH

Transducers
Dimensions	Transducer heads	4.85" (L) x 1.33" (W) x 1.35" (D (123 mm x 33.8 mm x 34.3 mm)
	Digitizer	4.45" (L) x 2.50" (W) x 1.10" (D (113 mm x 63.5 mm x 28 mm)
Weight	230 lb (1 kg)
Housing material	Cast aluminum
Mounting	Mount to the outside of pipe by means of stainless straps, nylon belts, or bungee and steel chain
Crystal wedge material	Epoxy resin (all transducer models)
Environmental rating	NEMA 6 (IP67)
Ambient temperature range	-4 to 130 ° F (-20 to 54 ° C)
Ambient humidity	Less than 100% RH
Transducer Cable
Standard cable	25' (7.6 m), 2 twisted pairs, 24 AWG, belfoil shield Note: Custom cable lengths are available
Maximum cable length	5000' (1524 m)

Power
Fixed units	110 VAC or 220 VAC at 50/60 Hz (AC line voltage selectable via internal selector switch)
	12 VDC (DC operation enabled by internal selector switch)
Portable units	Internal gel-cell, 8-hour continuous operation; built-in battery Recharge time is 12 hours using the external power adaptor/charger or DC auto cigarette lighter
Power adaptor/charger	Standard adaptor	115 VAC, 50/60 Hz (±10%) input delivering 12 VDC, 500 mA output
	Optional adaptor	230 VAC, 50/60 Hz (±10%) input delivering 12 VDC, 500 mA output
Power consumption	10 W typical
Analog output signal	4 to 20 mA DC, 700 W maximum load resistance, internally fused, active output
Alarm output	When on AC power	15 VDC = Active alarm
		High alarm switched +15 VDC, 500 mA
		Low alarm switched +15 VDC, 500 mA
	When on battery power	12 VDC = Active alarm
		High alarm switched +12 VDC, 500 mA
		Low alarm switched +12 VDC, 500 mA
Power failure backup	An internal super-capacitor allows the electronics assembly to retain all parameter information and current totalizer value for up to 10 days

Standard Interface
LCD display	2-line, 16 characters per line, high resolution
LED indicators	Yellow	Echo signal received
	Red	High alarm or low alarm activated
	Green	Power available
Keypad	12 keys, tactile feedback Note: Keypad lockout available through internal switch
Display panel	Rate Selection
	Totalizer selection
	K factor selection
	Analog output set
	Low-flow cutoff set
	Update time (damping) set
	High/low alarm set
	Fps or mps selection
	Totalizer reset
Output setting function	4 to 20 mA output scaling (set in velocity from keypad)
Alarm setting function	High and low alarm set points (entered in velocity from keypad)
Rate indication	4-digit LCD, velocity or volume (user selectable)
	English units	Feet per second (fps), gallons per minute (gpm), cubic feet per second, and million gallons per day Note: Gallons refers to U.S. gallons.
	Metric units	Liters and cubic meters
Totalizer indication	11-digit LCD
	English units	Gallons, cubic feet, acre feet, and millions of gallons Note: Gallons refers to U.S. gallons.
	Metric units	Liters and cubic meters
Update time (damping)	0 to 99 sec, entered from keypad
Low flow cutoff	0 to 2.5 fps (0 to 0.76 mps), entered from keypad
K factor	A value of 1 to 256, entered from the keypad depending upon sensor type; default is 90 Hz (correction factor)
Totalizer reset	Totalizer can be manually reset to zero from the keypad

Installation

Installation Specifications
Doppler placement	The ideal placement of the Sono-Trak Doppler flow meter is at least 20 diameters of straight run upstream and 10 diameters of straight run downstream between the meter and any disturbance of the flow; however, the meter has worked with straight runs of as little as 5 diameters upstream and 2 diameters downstream.
Transducer mounting	The Sono-Trak Doppler flow meter is configured with clamp-on transducers. When installed, the transducers sense fluid flow through a pipe, and send this information to the system electronics. The electronics then convert, transmit, and display the received data.
Transducer cabling	External clamp-on sensors are ideal for smooth, clean pipe surfaces, and are installed without shutting down flow. When clamp-mounting the flow meter, the sensors are attached to the outside of the pipe by means of stainless straps, nylon belts, or bungee straps and a steel chain.
Cable lengths between electronics enclosure and transducers	Standard cable length	25' (7.6 m)
	Custom cable length	Available up to 5000' (1524 m)

Fixed Sono-Trak Doppler Inclusions
C5F Model part number 3153140-001	1 set of electronics in a NEMA 4X case with an LCD display
	2 transducers with 25' (7.6 m) of cable
	Transducer tiedown kit
	Sonic coupling gel
	Operating manual
Portable Sono-Trak Doppler Inclusions
C5P Model part number 3153141-001	1 set of electronics in a NEMA 4X case with an LCD display
	2 transducers with 25 ' (7.6 m) of cable
	Transducer tiedown kit
	Sonic coupling gel
	Operating manual
	12 V, 2.2 AH battery
	120 VAC battery charger
	NEMA enclosure with tote handle and side latch
	Field transport case

Consulting for industrial & municipal engineering applications · (907) 677-3770

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Sono-Trak Doppler Ultrasonic Flow Meter