Testo 350 Calibration - Actoolsupply.com

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$Thermographic Monitoring of Refractory Lined Petroleum Refinery ...$

www.actoolsupply.comTable of contentsChap.Contents..............................................................Page1 Definition of termse.g. calibration/adjustment/alignment/inspection/zero point etc.......................................62 The principles of test gasAdvice from manufacturers of test gases, ppm/vpm/mgr/m³, safety advice,websites, test gas combinations ..........................83 Hardware for adjustment (material, design)Gas admission - notes..........................................134 Adjustment/alignment4.1 Factory adjustment of Testoflue gas analysers ........................................164.2 Adjustment/readjustment of Testo units/options for the customer..............................194.3 Adjustment intervals ....................................204.4 Recommended gas concentrations ............214.5 Cross-sensitivity ..........................................235 Step-by-step example........................................256 Troubleshooting ..................................................287 Testo flue gas analysersOverview ..............................................................30Heating ................................................................31Industry ................................................................368 Index....................................................................449 Testo addresses..................................................46Requesting information ......................................54www.actoolsupply.com5
www.actoolsupply.com1. Definition of termsCalibrationThe determination, under prescribed conditions, of the mutualassociation between the indication of the analyser on the one handand the relevant values of a variable (in this case test gas) representedas a measurement standard on the other. Result of a calibration:Error of measurement.Adjustment or alignmentElimination of the falsifying systematic error of measurement for theintended application, e.g. readjustment with test gas in the event ofdeteriorating sensor sensitivity.StandardisationThe standardisation of a measuring device comprises the qualityinspections and identification markings to be carried out in accordancewith standardisation regulations (e.g. standardisation laws,regulations on weights and measures). It is in actual fact impossibleto standardise a flue gas analyser.Error of measurement (accuracy)Indicated measurement minus the true value of the measured variable.This can be represented in a variety of ways:• relative deviation from the measured value• deviation relative to the limit value of the measuring range• absolute indication, for instance as vol. % or ppm.Reproducibility (repeat accuracy)Standard deviation of a series of measured values from measurementsperformed at short intervals of time and carried out accordingto a defined measurement procedure by the same operator onthe same parts, using the same equipment and at the same place.LinearityDeviation from the correct values of the measured values displayedacross a measuring range.6www.actoolsupply.com
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