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USING A RANGE PROGRAMMING UNIT WITH A CENTRAL MEASURING STATION.

[In Czech. / En tchèque.]

Author(s) : FORSCHENBAUER S.

Type of article: Article

Summary

MEASURED VOLTAGE FROM THERMOELECTRIC THERMOMETERS DURING THERMOTECHNICAL MEASUREMENTS OF AIR COOLERS AND CONDENSING UNITS WAS MOSTLY ABOUT 2 MILLIV. WHEN MEASURING IN THE LOWEST RANGE OF THE DIGITAL VOLTMETER (100 MILLIV) THE ACCURACY AND SENSITIVITY OF MEASUREMENTS WAS INSUFFICIENT, SINCE A VARIATION OF 0.01 MILLIV CORRESPONDED TO APPROXIMATELY 0.25 K, HENCE A DIGITAL VOLTMETER HAVING THE LOWEST RANGE OF 10 MILLIV WAS USED INSTEAD. BOTH DIGITAL VOLTMETERS ARE CHARACTERIZED AND THE APPLICATION OF A VOLTMETER AUTORANGE AND A RANGE PROGRAMMING UNIT IS DESCRIBED.

Details

  • Original title: [In Czech. / En tchèque.]
  • Record ID : 1983-0898
  • Languages: Czech
  • Source: Potravin. Chladici Tech. - vol. 12 - n. 3
  • Publication date: 1981
  • Document available for consultation in the library of the IIR headquarters only.

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