Hanna Instruments HI 9828 Instruction Manual

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Hanna Instruments HI 9828 Instruction Manual Manual pdf 33 page image

35• The following messages will appear: “Storing data on probe, please wait...”,“Updating GLP data, please wait ...” and “Calibration completed”.• Press to return to the “Calibration” menu.• To return to the main menu, press ESC repeatedly.NoteNoteNoteNoteNote The user can perform a single point calibration with standard values.To abort the procedure, press ESC after the first point is accepted.If the DO input is not within the acceptable range, the message “Invalidinput” is displayed.DO concentrationTo calibrate the DO concentration range, a solution with known DO concentra-tion value is needed.• From the “DO calibration” menu, select the“DO concentration” option, insert the knownvalue and press .• When the reading is stable, press to accept the value.• When the messages “Storing data on probe, please wait...”, “Updating GLPdata, please wait ...” and “Calibration completed” appear, the calibration iscompleted. To return to the “Calibration” menu, press .• To return to the main menu, press ESC repeatedly.4.4 CONDUCTIVITY CALIBRATIONFor a correct conductivity calibration, the probe sleeve must be inserted.The conductivity calibration menu includes 3 dif-ferent types of calibration: Conductivity, Actualconductivity and Salinity.The “Conductivity” option allows a single pointcalibration with a standard solution selectableby the user. This calibration is temperature com-pensated.The “Actual conductivity” option allows a single point calibration with a customconductivity solution of known actual value (not temperature compensated).The “Salinity” option allows calibration with a standard salinity solution.