User manual HANNA INSTRUMENTS HI 96743

[. . . ] INSTRUCTION MANUAL HI 96743 Iron LR and pH ISM Dear Customer, Thank you for choosing a Hanna product. This manual will provide you with the necessary information for the correct use of the instrument. Please read it carefully before using the meter. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst. com. Functional description: Errors and warnings: ON ZERO READING: Light High: There is too much light to perform a measurement. [. . . ] Battery low: The battery must be replaced soon. Dead battery: This indicates that the battery is dead and must be replaced. Once this indication is displayed, normal operation of the instrument will be interrupted. Change the battery and restart the meter. 4 3 5-6 8 Dimensions Weight 1. The measuring scheme (lamp, cuvette, detector), appears during different phases of zero or reading measurement 2. The battery icon indicates the change state level of the battery 4. The hourglass appears when an internal check is in progress 5. The chronometer appears when the reaction timer is running 7. The month, day and date icons appear when a date is displayed 8. Four digit secondary display 9 10 www. hannainst. com Alternatively, wait for: Iron LR: 30 seconds Then press READ/ /TIMER. In all cases the lamp, cuvette and detector icons will appear on the display, depending on the measurement phase. 11·The instrument directly displays the concentration in mg/L of iron or the pH 11 measured value on the LCD, depending on the selected parameter. or INTERFERENCES: · Iron LR: Cadmium above 4. 0 mg/L, Chromin6+ above 1. 2 mg/L, Copper above 0. 6 mg/L, Manganese above 50. 0 mg/L, Molybdenum 4. 0 mg/L, Nitrite ion above 0. 8 mg/L, Chromium3+ above 0. 25 mg/L, Cobalt above 0. 05 mg/L, Cyanide above 2. 8 mg/L, Mercury above 0. 4 mg/L, Nickel above 1. 0 mg/L. Ensure that the notch on the cap is positioned securely into the groove. 8· Press CAL CHECK key and the lamp, cuvette and detector icons together with "CAL CHECK" will appear on the display, depending on the measurement phase. 9· At the end of the measurement the display will show the validation standard value. The reading should be within specifications as reported on the CAL CHECKTM Standard Certificate. If the value is found out of specifications, please check that the cuvettes are free of fingerprints, oil or dirt and repeat validation. If results are still found out of specifications then recalibrate the instrument. 8 9 Validation and Calibration procedures Warning: do not validate or calibrate the instrument with standard solutions other than the Hanna CAL CHECKTM Standards, otherwise erroneous results will be obtained. For accurate validation and calibration results, please perform tests at room temperature (18 to 25°C; 64. 5 to 77. 0°F). Use the Hanna CAL CHECKTM cuvettes (see "Accessories") to validate or calibrate instruments. VALIDATION Validation Note: The validation is performed only for the selected parameter. For full validation of 3 the instrument, the following procedure must be performed for each parameter. [. . . ] 16·When the correct month has been set, press ZERO/CFM or READ/ /TIMER to confirm. Now the display will show the day blinking. 17·Press RANGE/GLP/ to edit the desired day (01-31). If the key is kept pressed, the day number is automatically increased. [. . . ]