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Tektronix A2/-4 Intrinsically Safe Ball Bearing Anemometer

Tektronix  |   Mfr# A2/-4"   |   Item# DO-10374-59

$684.00 USD/EACH
$615.60 USD/EACH

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  • Accurate measurements in a rugged unit
  • Intrinsically safe 4" mechanical anemometer
  • Accurately measures accumulated air movement and speed
This first-class hand anemometer has wide appeal, providing the simplest and most reliable measurement of air movement. Rugged and sensitive, yet compact and easy to operate. Used by government departments, mines, industrial plants, laboratories, colleges, contractors, and more. This anemometer is completely U.S.A. manufactured, assembled and calibrated, and has a long life expectancy with lasting accuracy.
Product Type Vane Anemometer
Range 30 to 5000 ft/min
Model DI10102
Qty/ea 1
Manufacturer number A2/-4"
Brand Tektronix

Accessories
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at $46.00 $41.40 USD/EACH

In stock.
Calibrations
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at $230.00 USD/EACH
Usually ships in 11 days.




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Questions and Answers

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Get answers from real customers and in-house experts with AnswerBox.

29 Questions | 29 Answers
Displaying questions 1-10Previous | Next »
  • Q:

    After calibration, is there still a 2% inherit margin of error on the Davis Anemometer after taking the reading? If so, is it + or -2%?
    Asked on 1/8/2016 by Jack from Madison, WV

    1 answer

    • STAFF EXPERT

      A:

      The accuracy is +/- 2% after the correction chart calculations are taken. This is inherit in the meter, even after calibration.

      Answered on 1/8/2016 by Katie from Technical Support
  • Q:

    can this anemometer be used to check the air velocity of a lab fume hood?
    Asked on 12/2/2015 by char

    1 answer

    • STAFF EXPERT

      A:

      I would not recommend this for measuring the air velocity in a fume hood. I would recommend either 33556-06 or 33556-60

      Answered on 12/3/2015 by Danielle from Technical Support
  • Q:

    Should this unit be calibrated at 400 FPM? With no correction, is this the ideal speed to reduce error in your reading?
    Asked on 10/13/2015 by Nick

    1 answer

    • STAFF EXPERT

      A:

      There is not a specific speed that this item should be calibrated. It has a 2% margin of error. If you do need to send it in for calibration, please see sku 17101-01. The lab can also test at a certain speed if you like!

      Answered on 10/13/2015 by Anthony from Technical Support
  • Q:

    Hi,

    Just wondering if you can get coal mine mechanical anemometers in m/s

    Sam
    Asked on 9/30/2015 by Boaty from Griffith, Australia

    1 answer

    • STAFF EXPERT

      A:

      Unfortunately, this unit will only read in feet per minute.

      Answered on 10/1/2015 by Katie from Technical Support
  • Q:

    If these work on the basis of momentum transfer from the moving air stream, it seems like the air density should be an important factor. However, there does not seem to be any correction for different densities. Can you explain why not? Thanks.
    Asked on 1/28/2015 by John

    1 answer

    • STAFF EXPERT

      A:

      There is a correction factor located in the manual. The manual is available below the specifications on the product page.

      Answered on 1/28/2015 by Anonymous
  • Q:

    How often does this anemometer need to be calibrated? Also, once calibrated, when does the clock start ticking for the next calibration due date? Does the date put in service start the calibration cycle?

    Thank you
    Asked on 6/16/2014 by Kathy

    1 answer

    • STAFF EXPERT

      A:

      The calibration interval will be up to you to decide and will depend on your specific process requirements and documentation requirements. Typical calibration interval is 12 months but there are customers who calibrate every 3, 6, 12 or 24 months. The calibration period begins from the date the unit is calibrated.

      Answered on 6/16/2014 by Jose from Technical Support
  • Q:

    Do they still make the zipper pouch for the 4" anemometer?
    Asked on 3/7/2014 by Sky King

    1 answer

    • STAFF EXPERT

      A:

      This anemometer no longer comes with a carrying case (either style: belt loop or sling strap). Other options that might work would be 09376-00 or 26003-40.

      Answered on 3/7/2014 by James from Technical Support
  • Q:

    Is there a manual on how to read velocity with this kind of anemometer?
    Asked on 3/1/2014 by Hue

    1 answer

    • STAFF EXPERT

      A:

      There is an instruction sheet which contains the following:
      Directions for Operating

      Move disconnect lever (on top of anemometer) to left, which will disengage movement

      Set all hands on zero by pulling down zero set lever (located near dial.)

      Hold anemometer directly in air stream, allowing vanes to turn with movement off

      Move disconnect lever to right to start movement. CAUTION: Lever must be completely to right to be properly engaged


      Anemometer readings are usually timed for one minute. The result is given in feet per minute (FPM), which is a lineal measurement of air flow. Apply the necessary correction shown on the correction chart, which is supplied with each anemometer.


      Directions for Determining Cubic Feet Per Minute (CFM)

      Testing for air flow in cubic feet per minute, when using our Davis anemometers in a restricted area, can be accomplished in the following manner:

      Take a one-minute reading at the face of the opening.

      If possible, take several readings at various locations along the opening and average these readings.

      Apply correction to reading from correction table (correction chart supplied with anemometer).

      Multiply corrected anemometer reading times the square footage of the opening to obtain CFM (cubic feet per minute).


      It is not necessary to take into account the obstructions caused by the three-armed “Y” supports or the movement box, as these obstructions have been taken into consideration in the calibration of the instrument. For testing open air spaces, it is advisable to divide the cross section of the airway into square foot areas, taking a separate reading for each area. Average all these readings to obtain a single reading for the open space being measured.

      Answered on 3/3/2014 by Dan from Technical Support
  • Q:

    Does this insrtument has auto stop feature to capture the measurement/reading at a certain instant? Or like it will stop after a certain set span of time?
    Asked on 2/1/2014 by Jo from Philippines

    1 answer

    • STAFF EXPERT

      A:

      This anemometer does not have an auto-stop feature.

      Answered on 2/3/2014 by Polo from Technical Support
  • Q:

    how to calibrate the 2 - 4" ball bearing anemometer?
    what tool to be used to calibrate this instrument?
    Asked on 9/27/2013 by mark from philippines, benguet

    1 answer

    • STAFF EXPERT

      A:

      The anemometer will come with a certificate of calibration. Once that expires, you have two options. Our metrology lab is able to perform a calibration of this anemometer under service part number 17101-01. There is a calibration procedure outlined by the MSHA (Mine Safety & Health Administration), which requires use of a variable wind tunnel to create a calibration curve. This device does not have a field calibration tool.

      Answered on 9/30/2013 by Christina from Technical Support
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Product Reviews

REVIEW SNAPSHOT®

by PowerReviews
 
5.0

(based on 2 reviews)

Reviewed by 2 customers

Displaying reviews 1-2

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5.0

What happened to the carry case??

By Whiteboots

from New York

Verified Reviewer

Pros

  • Accurage
  • Easy to use

Cons

  • Fragile

Best Uses

  • Mining And Tunneling

This is the only Anemometer I trust for measuring air velocity for underground construction (tunnels and shafts).

There used to be a carry case available to purchase with it, but for some reason that was discontinued?? Something this fragile needs a case. drop it once on a hard surface or in the mud and it is toast!

  • Was this a gift?:
  • No
 
5.0

Good Solid Instrument for Air FLow

By joe

from Texas

Verified Buyer

Pros

  • Great for air flow in

Cons

  • none

Best Uses

  • Hard to get to air flows

Great for hard to get to air flows and retains its accuracy over many years.

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