3 edition of Platinum resistance thermometer calibrations found in the catalog.
Platinum resistance thermometer calibrations
B. W. Mangum
by U.S. Dept. of Commerce, National Bureau of Standards, For sale by the Supt. of Docs., U.S. G.P.O. in Gaithersburg, MD, Washington, DC
Written in English
|Series||NBS measurement services, NBS special publication -- 250-22.|
|The Physical Object|
|Pagination||viii, 359 p.|
|Number of Pages||359|
This guide is intended to be used for verifying the resistance-temperature relationship of industrial platinum resistance thermometers that are intended to satisfy the requirements of Specification E/ is intended to provide a consistent method for calibration and uncertainty evaluation while still allowing the user some flexibility in the choice of apparatus and instrumentation. The use of primary ITS thermometers to high accuracy is difficult and time-consuming and there exist secondary thermometers, such as the platinum resistance thermometer, whose reproducibility can be better by a factor of ten than that of any primary thermometer. The last international agreement, CGPM-.
From Introduction: "This monograph describes the calibration of standard platinum resistance thermometers at the NBS including the equipment, techniques, and . Includes NIST-Traceable calibration certificate; Accepts 3- or 4-wire 1/10 din RTD probes ; Range to °F (°C) Resolution to ° The platinum RTD is the sensor of choice when a wide range is required with better accuracy than a thermocouple can offer. This meter can be used interchangeably with any of our growing selection of RTD probes.
The platinum resistance thermometer is a versatile instrument for temperature measurement in the range from — ° to °C. It is used both for precision measurements of the highest accuracy and for routine industrial work. This article discusses the development and construction of resistance thermometers and their uses in a wide range of industries. The accurate measurement of temperature is a vital parameter in many fields. A critically important aspect of applying any temperature sensor is that of traceable calibration - a concept that has been developed to ensure that all measurements made are accurate and legally valid.
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Resistance/temperature relationship of metals. Common RTD sensing elements constructed of platinum, copper or nickel have a repeatable resistance versus temperature relationship (R vs T) and operating temperature R vs T relationship is defined as the amount of resistance change of the sensor per degree of temperature change.
The relative change in resistance (temperature. Up to °C, the platinum resistance thermometer is often used as a reference standard. Above that temperature, up to about °C, a type S (platinum/rhodium–platinum) thermocouple is usually employed.
Type K (chromel–alumel) thermocouples are also used as an alternative reference standard for temperature calibration up to °C. Platinum resistance thermometer calibrations. [B W Mangum] Home.
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The reading of voltage is converted into the temperature with the help of the calibration equation. Construction of Platinum Resistance Thermometer. The figure below shows the platinum resistance thermometer. The platinum sensing coil is enclosed inside.
Platinum Resistance Thermometer calibration procedures are similar whether the method selected is characterization or tolerance testing. For best accuracy with modern equipment choose characterization.
For equipment that does not allow characterization, tolerance testing may be your only choice and this is a common situation in industry today. Fluke Calibration secondary standard PRTs fill the gap between affordable, but temperature-limited secondary reference PRTs and more expensive, highly accurate SPRTs.
The / probes provide a calibrated accuracy of ± °C at 0 °C with a range of – to °C and include an accredited calibration. If you want a very stable thermometer and prefer a probe with optional. Methods for Evaluating the Condition of Platinum Resistance Thermometers ( KB) Platinum Resistance Thermometers (PRT) Proper Platinum Resistance Thermometer Calibration Uncertainty Analysis ( KB) Using a Mini Triple Point of Water System to Improve Reliability in a Temperature Calibration Laboratory ( KB).
The Standard Platinum Resistance Thermometer (SPRT) Calibration Laboratory of the NIST Thermometry Group realizes the ITS from the argon triple point (Ar TP, – °C) to the silver freezing point (Ag FP, °C) for the calibration of SPRTs. The construction and use of high-temperature platinum resistance thermometers; introduction of the use of gold-platinum thermocouple; and the calibration and practical application of radiation thermometers are discussed as well.
Physicists, engineers, researchers, and students will find the book a good reference. Read Book Online Now ?book=XDownload Standard Platinum Resistance Thermometer Calibrations from the Ar TP to. The Standard Platinum Resistance Thermometer (SPRT) Calibration Laboratory of the NIST Thermometry Group realizes the ITS from the argon triple point (Ar TP, °C) to the silver freezing point (Ag FP, °C) for the calibration of SPRTs.
This special publication describes the calibration services, methods, measurement assurance Author: nist. The Industrial Thermometer Calibration Facility at the National Institute of Standards and Technology (NIST) is responsible for the calibration of liquid-in-glass, thermistor, thermocouple (for calibrations at temperatures below °C), digital, and industrial-grade resistance (e.g.
platinum, copper, nickel) thermometers. Fluke Corporation, Hart Scientific Division How to calibrate an RTD or Platinum Resistance Thermometer (PRT) 3 Table 2. Interpolation from an RTD calibration (resistance ratio (W) table).
t(°C) W(t) dt/dW(t) Platinum resistance thermometer NSR (Netsushin, Japan) Alternating current bridge F (ASL, UK) Water triple-point cell (°C) Standard resistor(Ω) Platinum resistance thermometer TSA (Chino, Japan) Alternating current bridge F (ASL, UK) Platinum resistance thermometer Calibration： ・every year NSR ・every 2 years.
The Henry Troemner LLC (Troemner) Primary Platinum Resistance Thermometer (PPRT) Calibration Laboratory provides calibrations based on the International Temperature Scale of (ITS) to government owned facilities, industry and secondary calibration laboratories.
Troemner was founded over years ago by Henry Troemner. This paper describes a first calibration method that is based on comparing the value from a calibrated temperature sensor to a temperature value measured by a reference temperature sensor (standard).
The uncertainty budget for platinum resistance thermometer and the calibration system is given here. ThermoWorks’ selection of Calibration Platinum Resistance Thermometers (PRT’s) are highly resistant to corrosion and stable over wide temperature ranges.
Available in the following models and more, please contact our Technical Sales Team for more details or to place an order.
[email protected] | The Fluke Working Standard Platinum Resistance Thermometer (SPRT) is designed to be the best primary standard interpolating instrument converting resistance to temperature.
With full calibration options, ITS coefficients can be used with your A/A Super-Thermometer, Black Stack, or the Chub-E4 Thermometer readout. Platinum resistance thermometer: Resistance calibrated at various fixed points and interpolated in a specified way.
Eleven distinct calibration procedures are specified. 3 Optical pyrometer: Calibrated at one fixed point, and extrapolated according to Planck's law.
May be calibrated at Ag, Au, or Cu freezing point. We then compare the reading of the test thermometer to our reference Ertco/Hart Platinum Resistance Thermometer which is accurate to °C.
This method of thermometer calibration known as “the comparison method” has been the gold standard for Liquid in Glass (LIG) thermometers for decades because it is the most accurate and reliable. Standard platinum resistance thermometer calibrations from the Ar TP to the Ag FP.
Bibliographic Details; Main Author: Strouse, Gregory F. Corporate Author: Search for the book on E-ZBorrow. E-ZBorrow is the easiest and fastest way to get the book you want (ebooks unavailable). Use ILLiad for articles and chapter scans.Calibration of industrial platinum resistance thermometers in thermostats at temperature range from °C to °C Prepared by Constantin Bordianu (coordinator) National Institute of Metrology (INM) 28, E.
Coca str., MDChisinau, Republic of Moldova, Phone: + () 22 Fax: + () 22 E-mail: [email protected] Resistance Thermometer. The warranty period begins on the date of the shipment. Parts, prod-uct repairs, and services are warranted for 90 warranty extends only to the original buyer or end-user customer of a Hart authorized reseller, and does not apply to fuses, disposable batteries or to.