User manual HANNA INSTRUMENTS HI 4521

[. . . ] SALES AND TECHNICAL SERVICE CONTACTS Australia: Tel. (03) 9769. 0666 · Fax (03) 9769. 0699 Instruction Manual China: Tel. (10) 88570068 · Fax (10) 88570060 HI 4521 & HI 4522 pH/mV/ISE/Temperature/ Conductivity/Resistivity/TDS/Salinity Bench Meters Egypt: Tel. & Fax (02) 2758. 683 Germany: Tel. [. . . ] · If the readings are far from the calibration point. Note: TDS and Resistivity readings are automatically derived from the conductivity readings and no specific calibration is needed. · Press to confirm your selection or press cancel operation. Logging Data Configuration This option allows the user to select the parameters that accompany a logged value: Date / Time, Calibration Data, Sample ID, Instrument ID, Operator ID, Company Name, Aditional Info 1 and Aditional Info 2. To set the Logging Data Configuration: or to select the Log option. · Use · Press and use or Logging Data Configuration option. · Press and use or desired parameter to be logged in file. · Press to highlight the to highlight the or OFFSET CALIBRATION The meter allows the user to calibrate the probe for the offset. · Set the meter for conductivity range; · Select the automatic standard recognition (see Conductivity Setup -> Calibration); · Leave the dry probe in the air; ; · Enter in calibration mode by pressing · Wait to stabilize. The 0. 000 µS calibration point will appear on the screen; · Press to finish the probe offset calibration. · Press to exit calibration mode or continue calibration in the other standard solutions. Note: The offset calibration can be performed only if it is perfomed first (no other calibration points present). Clear the old calibration if it is present. CELL CONSTANT CALIBRATION (in solution) Single Point Calibration · Select the single point calibration (see Conductivity Setup -> Calibration); · Pour a small quantity of the standard solution into a clean beaker. If possible, use plastic beakers to minimize any EMC interferences. · For accurate calibration and to minimize cross-contamination, use two beakers for each standard solution. One for rinsing the probe and one for calibration. to confirm your selection and use to enable the parameter by selecting Yes or to disable it by selecting No. to confirm your selection or press · Press cancel operation. to 32 85 Clear Calibration Accessing this option, the existent salinity calibration (Percent Scale) can be cleared. To clear calibration: · Use · Press · Press or to highlight the Clear Calibration option. A pop-up menu will be displayed to ask for confirmation. to confirm or press Sampling Period This option allows the user to select the desired sampling period for automatic logging type. To set the Sampling Period: or to select the Log option. · Use · Press and use Sampling Period option. [. . . ] The first step of the method will be displayed on the LCD in which the user is notified to add the appropriate ISA Buffer Volume (if different from 0 mL) to the standard and to immerse the electrode into the Standard Volume of set concentration. The method parameters are also displayed on the LCD. · Press to set the method parameters. Press and use or / to select next/previous parameter to set the desired parameter value. [. . . ]