Testo 350 Calibration - Actoolsupply.com

www.actoolsupply.comThe advantages of using this service are:- there is no need to stock test gases- necessary repairs and/or service work can be carried out at thesame time- a “neutral” certificate (calibration protocol) is obtained- it is inexpensive, since the user does not need to invest in gasesetc.4.3 Adjustment intervalsWhen and how often a control should be performed with test gasdepends on the accuracy requirements and on the traceability ofthe measurement results.In official measurements (state testing or EPA), for instance, it is arequirement that a control be performed and documented beforeevery measurement.For those areas not regulated by legislation and other rules, the followingrecommendations for test gas control and adjustmentapply:1 x per yearNormal use, concentration in the lower third of the measuringranges, no particular requirements regarding accuracy.2 - 4 x per year (every 3 to 6 months)More frequent use, longer-lasting measurements (over severalhours), concentration up to 2/3 of the measuring ranges, or whereaccuracyis quite important.more than 12 x per year (monthly)Daily use, depends very much on the measured values, high concentrations,continuous measurements lasting several days, accuracy/comparabilityis extremely important.20www.actoolsupply.com