EMCO's Sono-Trak™ Transit Time ultrasonic flow meter combines advanced
non-invasive flow measurement technology with a versatile transmitter design to
provide an accurate, maintenance-free, easy-to-install, and easy-to-use
measuring system. The Sono-Trak™ Transit Time flow meter, using only one set of
transducers, measures liquids for pipe sizes from 2 to 100".
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Reliable and Rugged
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High accuracy: ±0.5% of rate (factory tested); ±2.0% of rate (typical field
installation); ±0.1% of rate repeatability
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Time domain expansion technology improves signal processing and dramatically
increases resolution
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With no moving parts to wear over time, flow meter maintenance is non-existent
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Rugged, NEMA 6-rated transducers are fully submersible
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No pressure drop
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FM and CSA approvals (pending)
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Fast & Easy Installation
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Typical installations take less than 30 minutes with the non-invasive, clamp-on
design using all stainless steel quick clamps
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No worries of flange requirements, pressure ratings, process liquid interaction
issues, pipe vibrations, or upstream transitions
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Heavy-duty, urethane-coated cables are pre-terminated to facilitate a speedy
installation
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Easy-to-read, blue backlit display allows for quick flowmeter set-up, featuring
EMCO's patented menu-driven EZ-Logic™ user interface
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Features
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Flexible
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The same Sono-Trak flow meter can be installed on line sizes from 2 to 100" (50
to 2540 mm)
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Plug-and-play input/output module options enable custom electronics
configuration and/or field retrofits/upgrades; choose two from: pulse, analog,
relay, RS-232, RS-485, BTU, and data logger
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Standard, built-in infrared capability for use with optional Windows®
software
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The compact, NEMA 4X-rated, wall-mounted transmitter has a large, easy-to-read
backlit display, which alternates between flow rate and totalized flow with
corresponding, user-selectable engineering units. The four-button keypad allows
for quick flow meter set-up, featuring EMCO's patented menu-driven EZ-Logic™
user interface. Additionally, the standard infrared communication port can be
used with the optional Windows® compatible software package and
serial interface device to access all configuration and data recording
features.
With buffet-style input/output (I/O) module options, the electronics
configuration is easily customized. Two I/O sockets will accept any of seven
offered modules: pulse, analog, relay, RS-232, RS-485, BTU, and data logger.
The modules are "plug-and-play," enabling field upgrades and/or retrofits. The
RS-485 module allows single-point viewing of multiple meters in a master/slave
configuration. The BTU module accepts two RTD inputs and performs energy
calculations. The data logger collects up to 100,000 data points in
non-volatile memory and can be removed from the transmitter under power and
connected to a standard PC serial port for downloading and data analysis. Full
diagnostics are accessible through the display, the standard infrared port, and
the optional serial communication modules.
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Specifications
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Performance Specifications
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Accuracy (linear ranges)
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Factory tested¹
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± 0.5% of flow rate
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Typical field installation²
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± 1 to 2% of flow rate
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Repeatability
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± 0.1% of flow rate
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Response time
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Adjustable from .3 to 30 sec
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¹Factory test conditions: water at 70°F, flow velocity > 1 ft/sec on a 6"
stainless steel pipe
²Field performance is dependent on the accuracy of the pipe's internal diameter
and wall thickness measurements, as well as straight run conditions |
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Operating Specifications |
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Applied pipeline sizes |
2 to 100" (50 to 2540 mm) |
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Measurable fluids |
Most common liquids from waste water to petrochemical products |
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Measurable flow velocities |
Liquid -40 to 40 ft/sec (-12 to 12 m/sec) |
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Process pressure |
Not applicable |
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Ambient temperature limit |
-40 to 140°F (-40 to 60°C) |
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Process temperature limit |
Standard |
40 to 250°F (-40 to 121°C) |
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High temp option |
40 to 400°F (-40 to 205°C) |
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Ambient humidity limit |
Up to 95% RH, non-condensing |
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Power requirements |
Field configurable for AC or DC |
12-24 VDC
115 VAC, 50/60 Hz (± 10%)
230 VAC, 50/60 Hz (± 10%) |
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Power consumption |
Less than 5 W |
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Input/Output modules |
4 to 20 mA output |
Field configurable as a 2-wire active or passive transmitter, 800 Ω maximum
resistance |
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Frequency output |
Field configurable for 0 to 1,000 Hz or 0 to 10,000 Hz output, 20 mA max (50%
duty cycle) |
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Dual relay output |
175 V, ¼ A switch, 1 A carry current, 0.2 Ω resistance |
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RS485 interface |
Master/slave configuration, supports 57.6 kbd communications up to 1000' |
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RS232 interface |
Supports up to 57.6 kbd communication (19.2 kbd @ 50') |
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Physical Specifications
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Materials
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Wetted parts
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None
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Transducer housing 250°F
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Delrin® / Ultem® / Stainless steel; NEMA 6 (IP68)
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Transducer housing 400°F
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Toron® /Vespel® / Stainless steel; NEMA 6 (IP68)
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Sensor cables
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Polyurethane armored coaxial
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Clamps
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Stainless Steel
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Cable lengths
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Standard
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25' (7.6 m)
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Options
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50' (15.2 m)
75' (22.8m)
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Custom
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76' to 1000' (23.1 m - 304.8 m)
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Maximum transducer cable length
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1000' (304.8 m)
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Cable connection
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Standard submersible
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Mounting
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Transducer
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External, adjustable clamp
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Electronics
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Remote wall
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Approvals
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CSA
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Class I Div II Groups A,B,C,D
Class II and Class III Groups E, F
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Installation
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Installation Specifications
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Straight run piping
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Condition
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Upstream
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Downstream
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Typical
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10
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5
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Minimum
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5
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3
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Upstream valve and other piping configurations
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Consult EMCO rep or the Factory
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Consult EMCO rep or the Factory
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Transducer mounting
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Vertical
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The recommended flow direction a vertical pipe is upwards.
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Horizontal
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Transducer should be mounted so the pipe is full of liquid with no bubbles
present.
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Zero-point adjustment
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For best accuracy, a zero-point setting must be made with a full pipe at no
flow during initial start-up.
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Air/Gas entrapment
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Excess gas entrapment can scatter or reflect the sound wave,
causing inaccurate measurement. Allowable air/gas entrapment is 2%.
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Pipe material
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Good results
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Caution needed
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Do not use on
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Most metallic
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Cast iron
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Cement
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Plastic
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Lined pipes
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Pipes with internal deposits or severe corrosion
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Sonic wave forms
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Line size
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Mounting options
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2 to 2.5" (DN50 to DN65)
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"W"
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3 to 12" (DN80 to DN300)
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"V"
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14 to 100" (DN350 to DN2500
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"Z"
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Model Codes
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Category
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Description
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Suffix codes
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Electronics
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2-line backlit display with 4-button keypad
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ST-30
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I/O port 1
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None
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N
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4 to 20 mA output
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A
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Frequency/pulse output
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F
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Dual relay output (dry contact)
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R
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Dual RTD (limit 1 per unit)*
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BTU
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RS-232 interface **
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RS2
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RS-485 interface **
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RS4
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I/O port 2
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None
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N
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4 to 20 mA output
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A
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Frequency/pulse output
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F
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Dual relay output (dry contact)
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R
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Dual RTD (limit 1 per unit)*
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BTU
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RS-232 interface **
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RS2
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RS-485 interface **
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RS4
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Process temperature
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-40 to 250°F (-40 to 121°C)
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250
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| -40 to 400°F (-40 to 205°C)
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400
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| Transducers
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Submersible
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1
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| Cable length
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25' (7.6 m)
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25
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50' (15.2 m)
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50
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75' (22.8 m)
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75
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| 76 to 1000' (23.1 to 304.8 m) (specify length)
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XX
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| Pipe clamp size
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2 to 12" (50 to 300 mm)
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12
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| 14 to 24" (350 to 600 mm) |
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24
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| 26 to 36" (650 to 900 mm)
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36
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| 38 to 100" (950 to 2540 mm) (specify pipe size)
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XX
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