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Newmont. CRIPPLE CREEK & VICTOR <br /> PO Box 191 <br /> CRIPPLE CREEK&VICTOR 1ictorC 8086Street <br /> Victor CO 80860 <br /> Ensure the entire conductivity sensor is submerged in the solution or the <br /> instrument will read approximately of half the expected value! <br /> Choose the units in either SPC-us/cm and press enter. <br /> Highlight Calibration value and press enter to input the value of the calibration <br /> standard. Then, once the temperature and conductivity readings stabilize, <br /> highlight Accept Calibration and press enter. Or, press Esc to cancel the calibration <br /> pH Calibration <br /> Press 'Cal'. Highlight Probe ID. After selecting your or Probe ID, highlight ISE (pH) <br /> and press enter. The message line will show the instrument is "Ready for point 1". <br /> The pH calibration allows up to six calibration points. Calibration for CCV purposes <br /> will be a 3 point calibration (4, 7, and 10). Place the sensor in a pH 7 buffer solution. <br /> The instrument should automatically recognize the buffer value and display it at <br /> the top of the calibration screen. If the calibration value is incorrect, the auto <br /> buffer recognition setting in the Sensor Setup menu may be incorrect. If necessary, <br /> highlight the Calibration Value and press enter to input the correct buffer value. <br /> Once the pH and temperature readings stabilize, highlight Accept Calibration and <br /> press enter to accept the first calibration point. The message line will then display <br /> "Ready for point 2". <br /> To continue with the 2nd point, place the sensor in the second buffer solution <br /> (pH4). The instrument should automatically recognize the second buffer value <br /> (pH4) and display it at the top of the screen. If necessary, highlight the Calibration <br /> Value and press enter to input the correct buffer value. Once the pH and <br /> temperature readings stabilize, highlight Accept Calibration and press enter to <br /> confirm the second calibration point. <br /> The message line will then display 'Ready for point 3" and you can continue with <br /> the 3rd calibration point (pH10) as detailed in previous steps for first and second <br /> calibration points. <br /> Press 'Cal'to complete the calibration. <br /> Calibration Finalization <br /> Upon completing the calibrations prior to field use, return probes to pH 4 storage <br /> solution. pH 4 is the recommended storage solution to prevent the dehydration of <br /> the pH probe. While using YSI, place pH 4 storage solution in the storage solution <br /> container that is maintained in case, to be used for continued storage at days end. <br /> • Insure you have recorded the required values on the YSI Pro Plus calibration log. <br /> Department THIS DOCUMENT IS UNCONTROLLED IN HARD COPY FORMAT Doc Id: <br /> SI:R Date of This Issue--/--/-- Date of Next Review:--/--/-- Page 47 of 73 <br />