Alnor 9850, Owner'S Manual

Page 1: ...______________________________ _________________________________________ _________________________________________ TSI Incorporated Alnor Products 500 Cardigan Road Shoreview MN 55126 USA Toll Free 800 424 7427 Telephone 651 490 2811 August 2002 Fax 651 490 3824 Printed in USA www alnor com Part No 116 210 005 Rev 4 customerservice alnor com Thermo Anenometer Model 9850 Owner s Manual UL LISTED IN...

Page 2: ...ct TSI Incorporated directly before returning your instrument See INSTRUCTIONS FOR RETURN Follow the procedure carefully as it will expedite processing Failure to follow the procedure may cause return of the unit unrepaired Send your instrument to the factory transportation prepaid To assure fast turn around time photocopy and fill out this form with as much detail as possible and attach it to the...

Page 3: ...cated in specifications are warranted for a period of 90 days from the date of shipment to the customer b With respect to any repair services rendered Seller warrants that the parts repaired or replaced will be free from defects in workmanship and material under normal use for a period of 90 days from the date of shipment to the customer c Seller does not provide any warranty on finished goods man...

Page 4: ...n the instrument is switched to the BATT position Do not attempt to adjust any of the calibration potentiometers unless access to a properly calibrated wind tunnel test facility is available Environmental conditions temperature pressure humidity air turbulence can produce different effects on the measured results for different instrument types These differences must be considered when comparisons ...

Page 5: ...high reading scale The switch also has a BATT position where a portion of the battery voltage is substituted for the bridge output giving an indication of the voltage being provided by the battery GENERAL DESCRIPTION The Model 9850 Thermo Anemometer is a pocket sized battery operated analog readout portable instrument capable of measuring air velocities from 20 to 2000 FPM 0 1 to 10 m s in two ran...

Page 6: ...ully extended the probe can be rotated 180 degrees to allow the meter to be easily read in air flows coming from various directions When in use the probe must be turned so that the air flow is in the same direction as the arrow on the top of the probe 3 Slide switch on the top of the instrument to the battery position Note the position of the needle on the instrument face It should be in the dark ...

Page 7: ... remaining battery life If the needle rests in the narrow portion of the battery line plans for battery replacement should be made in the near future 4 Place anemometer in the air flow to be measured and slide switch on top of instrument to the HIGH position Read velocity on meter If velocity is below 250 FPM 1 2 m s move switch on top of instrument to LOW position for better resolution 5 Take and...

Page 8: ...ons that is 25 degrees Celsius and 760 mm Hg barometric pressure Note A change in any one adjustment requires calibration of the zero adjustment high range span adjustment and low range span adjustment WARNING To maintain the instrument as intrinsically safe for use in hazardous locations use ONLY the following battery types Eveready 522 Duracell MN1604 Radio Shack 23 553 LIST OF MODELS AND PARTS ...

Page 9: ...t is needed Zero Adjustment 1 Mechanically Turn instrument to OFF position and using a screw driver turn screw in front of instrument so the meter needle is lined up with the zero picket 2 Electrically Turn instrument to the LO position Cover probe sensor window to prevent any air flow and turn the ZERO adjustment screw on the left hand side of the instrument until meter needle lines up with the z...

Page 10: ...MAINTENANCE The Model 9850 Thermo Anemometer is manufactured with solid state components Thus no maintenance is required other than periodic checking that the instrument and probe are clean and not damaged Cleaning Meter Window Clean with liquid eyeglass cleaner Do not use abrasives or solvents Case Use mild soap dishwashing detergent and water solution on a damp cloth to remove finger marks oils ...

Page 11: ...MAINTENANCE The Model 9850 Thermo Anemometer is manufactured with solid state components Thus no maintenance is required other than periodic checking that the instrument and probe are clean and not damaged Cleaning Meter Window Clean with liquid eyeglass cleaner Do not use abrasives or solvents Case Use mild soap dishwashing detergent and water solution on a damp cloth to remove finger marks oils ...

Page 12: ...t is needed Zero Adjustment 1 Mechanically Turn instrument to OFF position and using a screw driver turn screw in front of instrument so the meter needle is lined up with the zero picket 2 Electrically Turn instrument to the LO position Cover probe sensor window to prevent any air flow and turn the ZERO adjustment screw on the left hand side of the instrument until meter needle lines up with the z...

Page 13: ...ons that is 25 degrees Celsius and 760 mm Hg barometric pressure Note A change in any one adjustment requires calibration of the zero adjustment high range span adjustment and low range span adjustment WARNING To maintain the instrument as intrinsically safe for use in hazardous locations use ONLY the following battery types Eveready 522 Duracell MN1604 Radio Shack 23 553 LIST OF MODELS AND PARTS ...

Page 14: ... remaining battery life If the needle rests in the narrow portion of the battery line plans for battery replacement should be made in the near future 4 Place anemometer in the air flow to be measured and slide switch on top of instrument to the HIGH position Read velocity on meter If velocity is below 250 FPM 1 2 m s move switch on top of instrument to LOW position for better resolution 5 Take and...

Page 15: ...ully extended the probe can be rotated 180 degrees to allow the meter to be easily read in air flows coming from various directions When in use the probe must be turned so that the air flow is in the same direction as the arrow on the top of the probe 3 Slide switch on the top of the instrument to the battery position Note the position of the needle on the instrument face It should be in the dark ...

Page 16: ...high reading scale The switch also has a BATT position where a portion of the battery voltage is substituted for the bridge output giving an indication of the voltage being provided by the battery GENERAL DESCRIPTION The Model 9850 Thermo Anemometer is a pocket sized battery operated analog readout portable instrument capable of measuring air velocities from 20 to 2000 FPM 0 1 to 10 m s in two ran...

Page 17: ...n the instrument is switched to the BATT position Do not attempt to adjust any of the calibration potentiometers unless access to a properly calibrated wind tunnel test facility is available Environmental conditions temperature pressure humidity air turbulence can produce different effects on the measured results for different instrument types These differences must be considered when comparisons ...

Page 18: ...cated in specifications are warranted for a period of 90 days from the date of shipment to the customer b With respect to any repair services rendered Seller warrants that the parts repaired or replaced will be free from defects in workmanship and material under normal use for a period of 90 days from the date of shipment to the customer c Seller does not provide any warranty on finished goods man...

Page 19: ...ct TSI Incorporated directly before returning your instrument See INSTRUCTIONS FOR RETURN Follow the procedure carefully as it will expedite processing Failure to follow the procedure may cause return of the unit unrepaired Send your instrument to the factory transportation prepaid To assure fast turn around time photocopy and fill out this form with as much detail as possible and attach it to the...

Page 20: ...____________________________ _________________________________________ _________________________________________ TSI Incorporated Alnor Products 500 Cardigan Road Shoreview MN 55126 USA Toll Free 800 424 7427 Telephone 651 490 2811 September 2003 Fax 651 490 3824 Printed in USA www alnor com Part No 116 210 001 Rev 3 customerservice alnor com Thermo Anenometer Model 9850 Owner s Manual UL LISTED I...