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Table of Contents
Summary of Contents for Feltest AirSpeed/2
- Page 1 Feltest AirSpeed/2 Instruction manual...
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Page 3: Table Of Contents
Table of contents Safety instructions Intended use Safety precautions About the instrument Names of parts Working principle The measurement Measuring procedure Interpretation of the results Technical data Declaration of conformity... -
Page 4: Safety Instructions
2. Safety instructions 2.1 Intended use The Feltest AirSpeed/2 is intended to measure the airflow through a press felt over an Uhle box on running paper machines. The instrument may not to be used on any other object, like for example dryer screens or conveyor belts. - Page 5 Nevertheless it is the user's responsibility to actually use the instrument in a safe way. Feltest Equipment bv can not be held responsible or liable in any way for suffered injuries or...
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Page 6: About The Instrument
3. About the instrument With this air speed meter (or anemometer) you have acquired a preci- sion instrument of exceptional quality. You also obtain the benefit of our many years’ experience in measuring physical data on running paper machine clothing. All probes have been calibrated in a wind tunnel and are checked to conform to the required tolerances. -
Page 7: Working Principle
3.2 Working principle The Feltest AirSpeed/2 works with a vane or propeller anemometer as the propeller has proofed to be more accurate and durable than a ther- mal anemometer in the harsh environment of a paper machine. The propeller speed, directly corresponding to the flow rate, is sensed electronically without inducing any reaction force and is transmitted to the read out unit. - Page 8 Fast or Slow key. To return to the 2-second average the instrument must be switched off and on again. Error indication If the display shows E.xx when switching on or during operation, this indicates a fault. The fault can be identified from the E-number details under Technical Data in chapter 5.
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Page 9: Interpretation Of The Results
Also a high water content in the felt will reduce the air flow over the Uhle box. Only by also measu- ring the caliper with a Feltest Caliper Gauge and the water content, one gets the whole picture and is it possible to accurately determine... -
Page 10: Technical Data
5. Technical data Probe Medium: non-corrosive gases Measuring range: 0,5 to 20 m/s Start-up code: 15.20 Connector: Lemo FCG.0B.305.CLCD52Z Accuracy: 2,0% full scale plus 5% reading Operating temperature: 0 to +120° C Storage temperature: 65 to +150° C Read out unit Medium: non-corrosive gases Unit of meas.:... -
Page 11: Declaration Of Conformity
This EC – Declaration of conformity is based on the test report No. 95.1 10951 of the EMC-Testcenter of SEV/ASE, CH-8320 Fehraltorf. Signed on January 1st 1996, M.F. Lensvelt Managing Director Postal address: Visiting address: Feltest Equipment BV Feltest Equipment BV Postbus 205 Bijenkorf 55 NL-6960 AE Eerbeek NL-6961 PA Eerbeek The Netherlands... - Page 12 P.O. Box 205 NL – 6960 AE Eerbeek The Netherlands T: +31 313 652 215 F: +31 313 654 068 E: info@feltest.com W: www.feltest.com...