Hanna Instruments PCA310 Instruction Manual

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Hanna Instruments PCA310 Instruction Manual Manual pdf 74 page image

“Detector Error” on LCD and “Det Err” on SMSThis error appear in the following situation:The light do not reach the detector. The light source is broken or the cell inner wall is dirty.The light that reach the detector with lamp off is too high. The light source circuit or the detectorcircuit is broken.The difference between the detector response with light on and light off is too small. The cell is dirty,the water is too turbid or the detector circuit is defective.The chlorine reading is below “Low point”. This could be caused by absence of chlorine in water,low pressure in the water inlet, malfunction of the sample valve, missing of the stirrer bar, missingreagent, detector malfunction.The chlorine value not increase at least with 0.05 ppm even if the chlorine dosing pump is runningfull time for “Max On time”. In this particular case, the error is cleared only when the controller isrestarted. This could be caused by absence of the chlorination agent, the malfunction of the dosingpump or malfunction of the detector.Check the presence of the magnet barr, check the reagent level, check the reagent pump tubes, cleancell, observe if the sample flow in the cell, edit the “Low Point”. Value, check the chlorine dosingpump, replace the cell.“pH Out of Range” on LCD and “pH Err” on SMSpH value is outside range (pH 0.00 to 14.00).Verify the connections; Change the pH probe.“ORP Out of Range” on LCD and “ORP Err” on SMSORP value is outside range (0 to 2000 mV).Verify the sample ORP; verify ORP probe connections, Change the ORP probe.“Temp. Out of Range” on LCD and “Temp Err” on SMSTemperature value is outside range (0.0 °C to 75.0 °C).Verify the sample temperature, verify the pH probe connector; change the pH probe.“Conc. Out of Range” on LCD and “Cl Err” on SMSChlorine value is outside range (0.00 to 5.00 mg/L).The chlorine concentration is too high.Alarm messages“High Chlorine” on LCD and “H Cl” on SMSThe concentration is over the Alarm High setpoint.Change the setpoint; verify the chlorine dosing.“Low Chlorine” on LCD and “L Cl” on SMSThe concentration is under the Alarm Low setpoint.ERRORS, ALARMS AND WARNINGS74