Hach 8350.3 User Manual

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Contents

Hach 8350.3 User Manual Manual pdf 8 page image

1. Unscrew the measurement chamber (No. 6).2. Remove the protector covering the pH bulb and rinse with deionized water or pH buffer and storein a safe place for future use.3. Gently shake the sensor downward in the same manner as a clinical thermometer to remove anytrapped air bubbles.4. Record the installation date on the label (No. 10).5. Screw the measurement chamber back in place.6. Assemble the 1/8" NPT input/output connections and connect the sample inlet to position No. 8and the outlet to position No. 9.7. Circulate the sample and check visually through the chamber for the absence of bubbles whichcould affect the measurement.8. Adjust the flow rate to approximately 150 mL/minute.9. To avoid back pressure it is advisable to discharge the sample at atmospheric pressure into adrain.10. The device should be grounded (No. 4) to avoid any external electrical noise interference.11. To avoid damage to the sensor, make sure the flow chamber is never empty. Make sure the glassbulb is always immersed in water or buffer solution.8417 sensorThe sensor can be installed in any position. Mount the sensor using a standard PG13.5 threadedcap.To avoid damage to the sensor, make sure the glass bulb is always immersed in water or buffersolution.MaintenanceD A N G E RMultiple hazards. Only qualified personnel should conduct the tasks described in this section of the manual.ControllerRefer to the Maintenance section of the controller documentation.Maintenance scheduleThe maintenance schedule shows minimum times for regular maintenance tasks. Performmaintenance tasks more frequently for applications that cause electrode fouling.Maintenance task 90 days AnnuallyClean the sensor XInspect sensor for damage XCalibrate sensor Set by regulatory agencies or experience8 English