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FloSonicUltrasonic Air Flow Sensor
Mine Radio Systems (MRS) Ultrasonic Airflow Sensor (UAFS) is
the industries most reliable and accurate air flow sensor designed
for mining and tunneling applications. Engineered based on the
ultrasonic time-of-flight principle, the UAFS application provides
mining and tunneling operators with the most precise monitoring
and warning solution available.
How does it work?
MRS UAFS consists of a control module and two transducers
mounted diagonally on opposite sides of a tunnel. Once hardware
installation is complete the tunnel’s dimensional parameters must
be programmed into the control module. Direct readings are
easily obtained locally via the LED display or remotely via Modbus®
and/or an isolated 4-20mA output.
Unlike many other commercially available air flow sensors, UAFS
monitors the air flow through a complete drift cross section. This
technology virtually eliminates the errors associated with turbulent
flow near the sensor. Ultrasonic bursts are transmitted between the
transducers. The effect of the air velocity on these bursts is measured
and used to precisely calculate the air flow or air velocity. MRS UAFS
reporting accuracy is the industry’s most reliant; as its reports are
independent of temperature, pressure, and humidity which can create
a false or inaccurate reading.
MRS Best-in-class Solutions
With over 400 installations at mining and tunneling sites in over 50
countries, MRS world-class network of clients and partners proves
to be the standard for success. MRS systems have been developed
specifically to meet the certification standards for hazardous and non-
hazardous environments throughout the world. MRS is an ISO 9001
registered company producing the industry’s highest level of quality
in all its systems and components.
Features• Accurate exhaust / intake measurements
• Remote flow measurements in dangerous or restricted areas
• Ventilation automation and controlled recirculation
• Timely measurement of air flow reversal in the event of a fire
• Early detection of fan malfunction or shutdownFLOSONIC AIRFLOW SENSOR [UAFS]
COMPONENT BRIEF
ï Worldí s most reliable and accurate air flow sensor designed for mining and tunneling applications
ï Includes accurate exhaust/intake measurements, remote flow measurement in dangerous or restricted areas, ventilation automation and controlled recirculation, timely measurement of air flow reversal in the event of fire and early detection of fan malfunction or shutdown
ï Consists of a control module and two transducers
Technical Specifications
Operating Principle Ultrasonic (time of flight)
Allowable Tunnel Width 2 to 15 metres
Air Velocity Range 0.1 to 30 m/s 20 to 5900 fps Accuracy 5%
Resolution 0.001 m/s
Operating Temperature 0º C to 50º C
Display 7 segment LED & unit indicators
Current Loop 4 to 20 mA output (isolated) - air flow
Alarm Open collector alarm
RS232 ModbusÆ and programming port
Power Supply 24 VDC
OperatingCurrent (peak)
150 mA
Weight & Dimensions 8.62kg (19lbs) 27cm x 16cm x 23cm (10.7in x 6.3in x 9.1in)
Technical Specifications
For more information, please visit our website or contact our representatives at the MRS Office nearest you.
hEAd OFFiCEMine Radio Systems Inc. 394-Highway 47, R.R. #1Goodwood, OntarioL0C 1A0tel. +1 905 640 1839fax. +1 905 640 1649
AustrAliAMRS (Pacific) Pty Ltd U3/14 Atbara StreetKalgoorlieW.A. 6430
tel. +61(0) 890 91 9999fax. +61(0) 364 23 3331
MRS (Pacific) Pty Ltd 184 Stony Rise RoadDevonportTasmania 7310
tel. +61(0) 364 23 3333fax. +61(0) 364 23 3331
CANAdA Mine Radio Systems Inc. 3030 Hwy. 69 N Val Caron P3N 1R8 tel. +1 705 897 2440fax. +1 705 897 1336
ChiNAMine Radio Systems Ltd.P.O. Box 10049Central Hong Kong
tel. +852 3500 0638 +1 416 642 3967
Cis (Commonwealth of Independent States)
SIA AkvariusDzelzavas Street #74, Office 313 Riga, Latvia LV-1082
tel. +371 6754 6517fax. +371 6787 0405
mEXiCOMine Radio Systems Inc. Abedules #96 Villa de las Flores 55710Coacalco, Edo. de Mex. Mexico
tel. +52 555 874 9540fax. +52 555 874 5034
russiAMine Radio Systems-Russia Ltd.Proletarsky Street #49Ilyinsky VillageRamensky DistrictMoskovsky OblastRussia 140121
tel. +7 495 788 5629fax. +7 495 788 5629
sOuth AFriCAMine Radio Systems (Africa) (Pty.) Ltd. Unit 2, 714 Hendricks StreetHermanstad,Pretoria, 0082South Africa
tel. +27(0) 12 379 9497fax. +27(0) 12 379 9499
uNitEd kiNGdOmMine Radio Systems (Europe) Ltd.Unit 2, Rok CourtParkway, DentonManchesterM34 3SG
tel. +44(0) 161 337 4450fax. +44(0) 161 336 2278
usAMine Radio Systems Corp.P.O. Box 137, Silverside Carr Executive Center501 Silverside RoadWilmington, Delaware, USA 19809
tel. +1 302 798 9444fax. +1 302 798 9448
www.mineradio.com
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