User manual HANNA INSTRUMENTS HI 96712

[. . . ] 4· Add the content of one packet of HI 96712A-0 Aluminum Reagent A and mix until dissolution is complete. Technical specifications: Range Resolution Accuracy Typical EMC Dev. Light Source Light Detector Method 0. 00 to 1. 00 mg/L 0. 01 mg/L ±0. 02 mg/L ±4% of reading @ 25°C ±0. 01 mg/L Tungsten Lamp Silicon Photocell with narrow band interference filter @ 525nm 1. CAL CHECK key: press to perform the validation of the meter, or press and hold for three seconds to enter calibration mode. ZERO/CFM key: press to zero the meter prior to measurement, to confirm edited values or to confirm factory calibration restore. [. . . ] Four digit secondary display Environment Battery Type Auto-Shut off Dimensions Weight www. hannainst. com 11 #2 12·Press READ/ /TIMER. The lamp, cuvette 12-13 and detector icons will appear on the display, depending on the measurement phase. 13·At the and of measurement, the instrument directly displays concentration in mg/L of aluminum on the Liquid Crystal Display. 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. 9 or dirt and that they are inserted correctly. Then the date of last calibration (e. g. : "01. 08. 2008") appears on the display, or "01. 01. 2008" if the factory calibration was selected before. If the key is kept pressed, the year number is automatically increased. 12· When the correct year has been set, press ZERO/CFM or READ/ /TIMER to confirm. If the key is kept pressed, the month number is automatically increased. 13-14 or 1· Press GLP/ to enter GLP mode. 11-12 2· Press READ/ /TIMER to enter in the factory calibration restore screen. 3· Press ZERO/CFM to restore the factory calibration or press GLP/ again to abort factory calibration restore. 4· The instrument briefly notifies "done" when restores factory calibration and returns to measurement mode. Factory Calibration Restore 2 Accessories: REAGENT SETS HI 93712-01 Reagents for 100 tests HI 93712-03 Reagents for 300 tests OTHER ACCESSORIES HI 96712-11 CAL CHECKTM Standard Cuvettes (1 set) HI 721310 9V battery (10 pcs) HI 731318 Cloth for wiping cuvettes (4 pcs) HI 731331 Glass cuvettes (4 pcs) HI 731335 Caps for cuvettes (4 pcs) HI 93703-50 Cuvette cleaning solution (230 mL). INTERFERENCES Iron above 20 mg/L Alkalinity above 1000 mg/L Phosphate avove 50 mg/L Flouride will interfere at all levels. CALIBRATION Note: It is possible to interrupt the calibration procedure at any time by pressing CAL CHECK or ON/OFF keys. 2· When the beeper sounds briefly and the LCD displays dashes, the meter is ready. 3· Press and hold CAL CHECK for three seconds to enter calibration mode. 4· Place the CAL CHECKTM Standard HI 96712-11 Cuvette A into the cuvette holder and ensure that the notch on the cap is positioned securely into the groove. 5· Press ZERO/CFM and the lamp, cuvette and detector icons will appear on the display, depending on the measurement phase. 6· After a few seconds the display will show "-0. 0-". 8· Place the CAL CHECKTM Standard HI 96712-11 Cuvette B into the holder and ensure that the notch on the cap is positioned securely into the groove. 9· Press READ/ /TIMER and the lamp, cuvette and detector icons will appear on the display, depending on the measurement phase. 10· After measurment the instrument will show for three seconds the CAL CHECKTM standard value. Note: If the display shows "STD HIGH", the standard value was too high. If the display shows "STD LOW", the standard value was too low. [. . . ] The remaining battery capacity is evaluated at the instrument startup and after each measurement. The instrument displays a battery indicator with three levels as follows: · 3 lines for 100 % capacity · 2 lines for 66 % capacity · 1 line for 33 % capacity · Battery icon blinking if the capacity is under 10 %. If the battery is empty and accurate measurements can't be taken any more, the instrument shows "dead batt" and turns off. To restart the instrument, the battery must be replaced with a fresh one. [. . . ]