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nviroental <br /> MEASUREMENT OF CONDUCTIVITY AND 'TEMPERATURE <br /> USING YSI MODEL 33 S-C-T PORTABLE FIELD METER <br /> The YSI Model 33 S-C-T meter is a portable, battery-powered instrument designed to accurately <br /> measure salinity, conductivity, and temperature. If another meter is used, refer to <br /> manufacturer's directions <br /> METER SETUP <br /> 1. Adjust the meter to zero (if necessary) by turning the Bakelite screw on the meter face <br /> so that the meter needle coincides with the zero on the conductivity scale. <br /> 2. Calibrate the meter by turning the MODE control to REDLINE and adjusting the <br /> • REDLINE control so that the meter needle lines up with the red line on the meter <br /> face. If this cannot be accomplished, replace the batteries (see Maintenance). <br /> 3. Plug the probe into the probe jack. <br /> TEMPERATURE MEASUREMENT <br /> 1. Rinse probe with distilled/deionized (DS/DI) water. <br /> 2. Place probe in the solution to be measured. <br /> 3. Set the MODE control knob to TEMPERATURE. <br /> CO2126 <br />