Model RVA+
Rotating Vane
Anemometer
OWNER’S MANUAL
Page 1: ...Model RVA Rotating Vane Anemometer OWNER S MANUAL...
Page 2: ...TIONS stated herein NO OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR PARTICULAR PURPOSE OR MERCHANTABILITY IS MADE THE EXCLUSIVE REMEDY OF THE USER OR PURCHASER AND THE LIMIT OF THE LIABILITY OF SE...
Page 3: ...tion 4 English Metric Unit Selection 5 Measuring Air Velocity 5 Measuring Air Volume 6 Low Battery Indication 7 SECTION 5 Helpful Information in Using Rotating Vane Anemometers 8 Flow Rate in Larger A...
Page 4: ...low friction bearings An infrared sensor translates fan blade movement into measured air velocity The RVA features a 270 degree rotating head with detents at every 90 and will function satisfactorily...
Page 5: ...s other than air Use with explosive and or other dangerous gas mixtures is not recommended and is at the user s own risk SECTION 3 About the RVA Installing the Batteries The RVA requires 4 AA batterie...
Page 6: ...show units of measure statistics min max avg the X1000 multiplier and area Auto Shut Off The RVA has an auto shut off feature to help preserve battery life If no keys are pressed for 10 minutes the i...
Page 7: ...ther the or key to make your selection Press MODE CLEAR key to accept the selection and return to rdY Measuring Air Velocity With the RVA displaying rdY select velocity units using the or arrow keys I...
Page 8: ...average maximum and minimum values of the measuring sequence Press the or key to display a particular value Press MODE CLEAR key to return to rdY Measuring Air Volume The operation for air volume meas...
Page 9: ...uare area of your measurement area use the formulas square or rectangle length x width square area round x r2 square area where 3 14 and r radius Note If dimensions are in inches divide the result by...
Page 10: ...nce from the duct walls If the area is larger than 2 15 ft2 0 2 m2 the effect should be minimal Note The RVA can display an averaged result of multiple readings in both velocity and volumetric modes F...
Page 11: ...e for both supply and exhaust grilles and the procedure for both is the same except that the direction arrow on the instrument head must be aligned correctly with the direction of the air flow The hea...
Page 12: ...he same units of linear measurement throughout the calculation EXAMPLE The dimensions of a rectangular opening to a kitchen exhaust hood is 36 x 72 in The average air velocity is 138 ft min fpm Using...
Page 13: ...lt is divided by 12 In this example the average velocity is 3 025 m s The opening s cross sectional area is 0 6 x 0 4 m 0 24 m2 Therefore the volume flow rate is 0 24 m2 x 3 025 m s 0 726 m3 s This fi...
Page 14: ...des were deformed or liquid spilled on the instrument the blades in particular SECTION 7 Service and Calibration Information Please return your Product Registration Card immediately This allows us to...
Page 15: ...l expedite processing of your instrument when we receive it See back cover for factory address Damaged in Transit All orders are carefully packed for shipment On receipt if the shipping container appe...
Page 16: ...by the insured If the instrument is damaged beyond use a new order should be placed with TSI while awaiting reimbursement from the carrier for the damaged instrument Call TSI directly for assistance i...
Page 17: ...ion Velocity 1 fpm 0 001 m s under 10 00 m s 0 01 m s otherwise Temperature 1 F 1 C Accuracy Velocity 1 reading 4 fpm or 0 02 m s Temperature 2 F 1 C Display 4 digit 0 45 in 11 mm high LCD with 2 5 di...
Page 18: ...corporated Alnor Products 500 Cardigan Road Shoreview MN 55126 USA Toll Free 800 424 7427 June 2002 Telephone 651 490 2811 Printed in USA Fax 651 490 3824 Part No 116 159 210 Rev 2 www alnor com Copyr...
