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FM500 ULTRASONIC FLOW METERS
Ultrasonic flow meters that use transit time and Doppler methods to measure flow.
Ultrasonic Flow Meters FEATURES:
  • Clean or dirty water applications with selectable modes
  • Quick and easy setup and operation
  • Clamp-on transducers never contact process liquid
  • Built in data logger downloads to standard SD card
  • Fully configurable analog and pulse outputs
To Order Call 1-800-876-1172
Ultrasonic Flow Meters Options & Prices
On this page:

. Ultrasonic Flow Meters Product Description
. Ultrasonic Flow Meters Product Applications
. Ultrasonic Flow Meters Specifications
. Ultrasonic Flow Meters Options & Prices

Downloads (PDF):

. Ultrasonic Flow Meters Brochure
. Ultrasonic Flow Meters Manual *

*May take several minutes to download, depending on your internet connection speed.
Additional Information:

. Ultrasonic Flow Meter Case Study 1
. Ultrasonic Flow Meter Case Study 2
. Other Blue-White Products
. Product Support

Ultrasonic Flow Meters Product Description
The Global Water FM500 ultrasonic flow meters provide accurate and trouble free flow metering for a wide range full pipe applications including: potable water, raw wastewater, effluent, well water, slurries, or virtually any sound conducting liquid.  The FM500 ultrasonic flow meter incorporates the latest ultrasonic technology to give you an accurate, easy to use hybrid flow meter with selectable Doppler or transit-time operating modes.  With their quick and easy clamp-on transducer installation, factory pre-configuration and user programmable menu driven interface, the ultrasonic flow meters are a snap to commission in the field.  The reliable FM500 ultrasonic flow meters use custom algorithms and DSP technology to ensure high accuracy flow metering, and the proprietary AGC (Automatic Gain Control) algorithm eliminates the need for manual gain adjustments.

Ultrasonic Flow Meter's Great Features
Loaded with the features, the FM500 ultrasonic flow meters include: five programmable and password protected configurations for multiple user and portable applications, an easy to read 320 x 240 pixel backlit LCD display, data logging to standard SD Card format (user configurable to time interval, flow rate and total set-point triggers), isolated 4-20mA analog and 0-1000Hz pulse outputs.

Ultrasonic Flow Meter's Optional Features
Optional features include: three configurable relay outputs and a communications package that allows the ultrasonic flow meter to connect to your computer via RS-232, RS-485, USB or Ethernet.  The ultrasonic flow meter's communication package also permits remote access and control of all functions including real-time display, system configuration, data logging, remote data capture and process control functions.  The software included with the ultrasonic flow meter's communication package allows remote internet access through a local network set-up.

Custom Configured Ultrasonic Flow Meters
The FM500 ultrasonic flow meters can be configured for your specific pipe and process liquid application so that it is ready to go out of the box.  We will need the following information for configuration purposes:

Pipe size (ID), material and schedule (EG: 3 inch schedule 40 PVC)
Process liquid being measured (EG: raw wastewater)
Volumetric and time units to be displayed (EG: US gallons/minute)
Language displayed (EG: English)

How The Ultrasonic Flow Meters Work
The Global Water series Hybrid Ultrasonic Flow Meters can measure fluid flow in virtually any fluid in which sound waves can travel.  The Ultrasonic Flow Meters are considered "hybrid" because they can measure fluid flow using either the Doppler or Transit Time methods.  The Global Water ultrasonic flow meter's sound transducers are clamped to the outside of the pipe wall and include no moving parts.  This method of flow measurement is safe, non-intrusive and very easy to service.

The Ultrasonic Flow Meter's Doppler measurement method requires particles be present in the flow stream to "reflect" the sound waves.  The ultrasonic flow meter may not read flow correctly when using the Doppler mode if the fluid contains no particles.  For best results 0.02% to 15% (200 to 150,00 ppm) particles should be present in the flow stream.

The Ultrasonic Flow Meter's Transit Time measuring method requires relatively "clean" fluid to enable the sound waves to complete their circuit.  The Ultrasonic Flow Meters may be operated in the Transit-Time mode when the fluid contains 0% to 10% (0 to 100,000 ppm) of particles.  To allow for changes in the fluid's particle count, the Global Water Ultrasonic Flow Meters monitor the signal gain and employ an Automatic Gain Control (AGC) algorithm that periodically adjusts the gain to maintain the optimum power level.

The speed at which sound travels in the fluid must be known.  The factory will configure the ultrasonic flow meter for a known fluid during the initial configuration.  The Global Water Ultrasonic Flow Meters include a 5-button user interface that can be used to configure the meter.  Many common fluids are listed in The Ultrasonic Flow Meter's software and can be selected directly from the menu.  Provided the speed of sound in the fluid is known, custom "unknown" fluids can be input into the ultrasonic flow meters manually by the user.  A list of various fluids and their sound speeds are provided in the ultrasonic flow meter's user manual.
Ultrasonic Flow Meters Applications
The FM500 ultrasonic flow meters are ideal for many applications including sewage, wastewater, pulp & paper slurries, DI water, discharge water, caustics, chemical slurries, ground water, food and beverage, petrochemical, and any other sound conducting liquid.
Ultrasonic Flow Meters Specifications
Ultrasonic Flow Meters General
Measuring principle: Hybrid, user selectable ultrasonic Doppler or transit time via pipe mounted transducers
Condition of flow: Full pipe within the minimum and maximum velocity specifications
Liquid types: Virtually any acoustically conductive fluid
Transit time mode: from 0% to 10% (0 to 100,000 ppm) particulate
Doppler mode: from 0.02% to 15% (200 to 150,000 ppm) of 50 micron particulate
Nominal pipe sizes: 0.5 inch - 100 inch (12.7 mm to 2540 mm)
Pipe materials: Most metal and plastic pipes
Pipe liner materials: Most plastic liners
Liquid velocity range: 0.25 to 30 f/s (0.08 to 9 m/s)
Flow Sensitivity: 0.001 ft/s (0.0003 m/s)
Accuracy:
     Transit Time accuracy at nominal pipe sizes
          5.0 seconds: +1% of rate >1 ft/s and +0.01 ft/s <1 ft/s
          1.0 seconds: +1% of rate >5 ft/s and +0.05 ft/s <5 ft/s
          0.5 seconds: +2% of rate >12 ft/s and +0.25 ft/s <12 ft/s
     Doppler accuracy at nominal pipe sizes
          5.0 seconds: +2% of rate >5 ft/s and +0.10 ft/s <5 ft/s
          1.0 seconds: +2% of rate >8 ft/s and +0.20 ft/s <8 ft/s
          0.5 seconds: +2% of rate >12 ft/s and +0.25 ft/s <12 ft/s

Ultrasonic Flow Meters Electronics & Interface
Power: 90-264 VAC 50/60Hz or 15-30 VDC @ 30 watts maximum
Display: 320 x 240 pixel QVGA backlit LCD, UV resistant.
Rate and total display: 10 digit maximum + exponent to E+32 (selectable decimal location)
Display languages: English, Spanish, French, or German selectable
Keypad: Five-button positive action tactile switch keypad
Security: Programmable master password and individual configuration passwords
Rate & flow units: Independently configurable rate and total display units in: US Gallons, ounces, barrels (US liquid), barrels (US oil), cubic feet, acre feet, Imperial (British) gallons, liter, cubic meter, or user defined "custom" units.
Display time units: Seconds, minutes, hours, or days (rate & total units are independent)
Display outputs
     Update time: Selectable: 0.25, 0.50, 1.0 (default), 2.5, 5.0 seconds
     Flow rate averaging: Selectable: 0.50, 1.0, 2.5, 5.0 (default), 10.0 seconds
Signal outputs
     Analog: Isolated 4-20 mA output - fully configurable, invertible
     Pulse: 0-1000 Hz Pulse output - fully configurable, invertible
Control/alarm outputs: Three independently configurable 10 amp Form C, NO/NC relays
Data Logging
     Rate & total: Date/time stamped in FAT32 file format, easily imported into Excel
     Settings: Trigger on time interval (1-999,999 sec), rate and/or total set-point values
     Storage: Over 500,000 log events possible with included 32MB SD Card.  2,000 logs held in memory buffer downloadable using software.

Ultrasonic Flow Meters Mechanical
Enclosure: NEMA 4X (IP66), powder coated aluminum, stainless steel hardware
Dimensions: 11.00H x 8.60W x 5.00D inches (279H x 218W x 127D mm)
Weight: 9.5 lb. (4.3 kg)
Mounting: Wall, pipe (vertical or horizontal) or panel, Hardware included
Panel opening: 10.63H x 8.10W inches (270H x 206W mm)
Panel depth: rear: 2.78 inches (71 mm), front: 2.18 inches (55 mm)
Operating temperature: 14 to 140 F (-10 to 60 C)
Storage temperature: -40 to 158 F (-40 to 70 C)

Ultrasonic Flow Meters External Communications
Computer connection: RS-232, RS-485, USB, Ethernet (comm. software included)

SS Ultrasonic Flow Meters Clamp-On Transducers
Housing: NEMA 6P (IP67), Nickel plated aluminum, stainless steel hardware
Dimensions: 3.12H x 2.95W x 1.60D inches (79H x 75W x 41D mm)
Weight (excluding cable): 0.8 lb. (0.4 kg.) each
Cable (non-removable): Shielded coaxial RG/U 59, PVC jacket, Black, RoHS Compliant. Standard length: 10 ft. (3m)
Optional lengths available: 25 ft. (7m), 50 ft. (15m), 100 ft. (30m)
Fits Pipe Sizes 2.0 inch - 100 inch (63 mm to 254 0mm)
Pipe surface temp: -20 to 250 F (-34 to 121 C)

Plastic Ultrasonic Flow Meters Clamp-On Transducers
Housing: NEMA 6P (IP67), PVDF base with polypropylene cover
Dimensions: 3.12H x 2.95W x 1.60D inches (79H x 75W x 41D mm)
Weight (excluding cable): 0.8 lb. (0.4 kg.) each
Cable (non-removable): Shielded coaxial RG/U 59, PVC jacket, Black, RoHS Compliant. Standard length: 10 ft. (3m)
Optional lengths available: 25 ft. (7m), 50 ft. (15m), 100 ft. (30m)
Fits Pipe Sizes 0.5 inch - 2 inch (12.7 mm to 50.8mm)
Pipe surface temp: -20 to 250 F (-34 to 121 C)
Ultrasonic Flow Meters Options & Prices
Prices listed are for United States and Canada only.  Call or e-mail us for pricing in other countries.
Terms and Conditions

FM500 Ultrasonic Flow Meter
Transit time/Doppler flowmeter with datalogger, SS non-field replaceable transducers, & 10 ft (3.05 m) cable.
Pricing
FM500-25 Non-field replaceable SS transducers on 25 ft (7.62 m) cable (for 2 transducers)
Replace the FM500's standard 10 ft (3.05 m) cable with this longer cable.  For use with pipe diameters in the range of 2 to 100 inches (5.08 to 254 cm).  Please specify the pipe diameter to be used with the ultrasonic flow meter transducers.
Pricing
FM500-50 Non-field replaceable SS transducers on 50 ft (15.24 m) cable (for 2 transducers)
Replace the FM500's standard 10 ft (3.05 m) cable with this longer cable.  For use with pipe diameters in the range of 2 to 100 inches (5.08 to 254 cm).  Please specify the pipe diameter to be used with the ultrasonic flow meter transducers.
Pricing
FM500-100 Non-field replaceable SS transducers on 100 ft (30.48 m) cable (for 2 transducers)
Replace the FM500's standard 10 ft (3.05 m) cable with this longer cable.  For use with pipe diameters in the range of 2 to 100 inches (5.08 to 254 cm).  Please specify the pipe diameter to be used with the ultrasonic flow meter transducers.
Pricing
SMALL PIPE ULTRASONIC FLOW METER WITH NON-FIELD REPLACEABLE PLASTIC TRANSDUCERS
FM500-P Ultrasonic Flow Meter
Transit time/Doppler flowmeter with datalogger, plastic non-field replaceable transducers, & 10 ft (3.05 m) cable.
Pricing
FM500-25-P Non-field replaceable plastic transducers on 25 ft (7.62 m) of cable (for 2 transducers)
Replace the FM500-P's standard 10 ft (3.05 m) cable with this longer cable.  For use with pipe diameters in the range of 0.5 to 2 inches (1.27 to 5.08 cm).  Please specify the pipe diameter to be used with the ultrasonic flow meter transducers.
Pricing
FM500-50-P Non-field replaceable plastic transducers on 50 ft (15.24 m) cable (for 2 transducers)
Replace the FM500-P's standard 10 ft (3.05 m) cable with this longer cable.  For use with pipe diameters in the range of 0.5 to 2 inches (1.27 to 5.08 cm).  Please specify the pipe diameter to be used with the ultrasonic flow meter transducers.
Pricing
FM500-100-P Non-field replaceable plastic transducers on 100 ft (30.48 m) cable (for 2 transducers)
Replace the FM500-P's standard 10 ft (3.05 m) cable with this longer cable.  For use with pipe diameters in the range of 0.5 to 2 inches (1.27 to 5.08 cm).  Please specify the pipe diameter to be used with the ultrasonic flow meter transducers.
Pricing
SMALL PIPE ULTRASONIC FLOW METER WITH FIELD REPLACEABLE PLASTIC TRANSDUCERS
FM500-RP Ultrasonic Flow Meter
Transit time/Doppler flowmeter with datalogger, plastic field replaceable transducers, & 10 ft (3.05 m) cable.
Pricing
FM500-25-RP Field replaceable plastic transducers on 25 ft (7.62 m) of cable (for 2 transducers)
Replace the FM500-RP's standard 10 ft (3.05 m) cable with this longer cable.  For use with pipe diameters in the range of 0.5 to 2 inches (1.27 to 5.08 cm).  Please specify the pipe diameter to be used with the ultrasonic flow meter transducers.
Pricing
FM500-50-RP Field replaceable plastic transducers on 50 ft (15.24 m) cable (for 2 transducers)
Replace the FM500-RP's standard 10 ft (3.05 m) cable with this longer cable.  For use with pipe diameters in the range of 0.5 to 2 inches (1.27 to 5.08 cm).  Please specify the pipe diameter to be used with the ultrasonic flow meter transducers.
Pricing
FM500-100-RP Field replaceable plastic transducers on 100 ft (30.48 m) cable (for 2 transducers)
Replace the FM500-RP's standard 10 ft (3.05 m) cable with this longer cable.  For use with pipe diameters in the range of 0.5 to 2 inches (1.27 to 5.08 cm).  Please specify the pipe diameter to be used with the ultrasonic flow meter transducers.
Pricing
ULTRASONIC FLOW METER OPTIONS
FM500-B 3-relay option (for control and alarms)
Includes three independently programmable 10 amp relays.
Pricing
FM500-A Smart communications/configuration package for ultrasonic flow meter
Includes Ethernet, USB, RS-232, and RS-485 connections, and proprietary FM500 User PC Software.
Pricing
ULTRASONIC FLOW METER SPARE PARTS
FM500-10-T Spare set of non-field replaceable SS transducers with 10 ft of cable Pricing
FM500-25-T Spare set of non-field replaceable SS transducers with 25 ft of cable Pricing
FM500-50-T Spare set of non-field replaceable SS transducers with 50 ft of cable Pricing
FM500-100-T Spare set of non-field replaceable SS transducers with 100 ft of cable Pricing
FM500-10-PT Spare set of non-field replaceable plastic transducers with 10 ft of cable Pricing
FM500-25-PT Spare set of non-field replaceable plastic transducers with 25 ft of cable Pricing
FM500-50-PT Spare set of non-field replaceable plastic transducers with 50 ft of cable Pricing
FM500-100-PT Spare set of non-field replaceable plastic transducers with 100 ft of cable Pricing
FM500-10-RPT Spare set of field replaceable plastic transducers with 10 ft of cable Pricing
FM500-25-RPT Spare set of field replaceable plastic transducers with 25 ft of cable Pricing
FM500-50-RPT Spare set of field replaceable plastic transducers with 50 ft of cable Pricing
FM500-100-RPT Spare set of field replaceable plastic transducers with 100 ft of cable Pricing
FM500-0-RPT Spare set of field replaceable plastic transducers with no cable Pricing
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