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t '.Although different brands of conductive meters " <br />conductivity vary, catebcateon procedures are similar for ® al, .; . of them. A generalized calibration procedure follows: <br />} <br />I : Turn on the hLstrMent, check the battery, and allow to warm up if ncessary- <br />2. Rinse the coriductivity probe and temperature probe with deionhed water then Plax in <br />the standard solutiom At Forward Landikeonductivities am usually within 500 to 1500 <br />UMhOA thercforethe 1000 umhosa solution is appropriateto e <br />3. Adjust the - meter for the appropriate conductivity sole and temperature then read he <br />conductivity - <br />4_ If required use. the "calibrate" adjustment on the meter to correct the instnuizen't to read <br />the correct conductivity. <br />The ! .••r Process will be.recorded on a conductivityr .r•t •• (::6p . of calibrati♦ <br />109S fOr' each individual - fiLstrument arc -kept in- a: binder -atlhc, ojffice�- The logs -are revic <br />pcdodicaI6 to ass= whether the <br />and <br />therefore n�icds a4lustmeni by the manufactu=, or if new probes am of t f <br />Tttrbjgt Meter <br />Tilibidity -InCasurement is subject to van4ons due to insaument drift For this zeasori turbidity <br />Met= must be calibmted before and after sampling on each'da: <br />Y and at -least once more duiing <br />adiiusted. to read c9rrectly for <br />Standard tur'bidity solutionsamft ► r..r' fivsil.according ':r PaC69cIt [ M• #:!a /'each. <br />samplingeVent.Standardsolutionsfor !. I.:♦ t are cOmMCZciAY . ! These",:Y.' • ! .. i. <br />:are Mchased fi-esh and discarded-aftei shelf life has =pi; -ed. Shelf Uves Tay dq=ding on the <br />brand of r.rr. t ► .r If prelrepwed saktion is us4 theeViragon date of the • io <br />be noted on the caft-bration, log. <br />Although different brands'of ttubidity matcrscalibration procedures er for of <br />rrr s e tt t r rel a i � � /. r :• e • r u • r .. ,,,, <br />0*23483849-FOM31OR3Z A4 duly 14:.2000 <br />2000 Kms, 1W <br />