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'Although different bvinds of conductivity meters varY, calibration procedures 'are similar for ail <br />otthem. A Sencialiud calibration procedure follows: <br />Turn, on the instrument, check the battery, and allow to warm up if necessary. <br />2.. Rinse the coxiductivity probe and temperature probe with deionized water then pla4,: in <br />the standard solutiom At ForWard Landfill conductivities are usually within 500 to 1500 <br />umhos/l, therefore the 1000 umhos/l solution is appropriate to use. <br />3. Adjust the -meter for the. appropriate conductivity scale . and temperature then read the <br />conductivity. <br />4- If r6quired use. the "calibrate" adjustment on the meter to correct. the instruineni to read <br />the correct conductivity. <br />TheCaUbration process will be.reconled on a conductivity cali-brationJog- - Copies of cribration.. <br />logs for- each individual-histrument arc -kept in -a: binder­at-thc-,ojffce: The logs -am reviewed. <br />PeXJ[OdicallY to ass= whether theinstrument is becommg more difficWt to crate and <br />thcre&re needs adjustment by the manufacturex:, or if new probes are -required. <br />Turbidity Mete <br />Turbidity ineasurement is subject to variations due to instrument ddfL For this reason turbidity <br />Met= must be calibrated before and after sampling on each'day and 'aLleast once more during <br />the day. - To cahluVe a turbidity meter -the instrument reading is aw to read correctly for <br />Solutions with a standard turbidity. <br />AlffiOugh difterent brands'of turfidity metcrs vary, calibration procedures are'simi-lar for au of <br />thdin. A generalized MI: libration procedure follows: <br />f. Turn on the instrumen:4 check the battery, and allow to warm up if n=CSSW- <br />-'23-4 83849-FwZIOR325 A4' J* 14,'2000 <br />C"rf& 2M Kkia&fda 1%r_ <br />