Hanna-instruments HI 96721 Manuale Utente

1www.hannainst.comInstruction ManualHI 96721Iron High Range ISM

10Under range: A blinking “0.00” indicates that the sampleabsorbs less light than the zero reference. Check the procedureand make sure you use the sam

11The instructions listed below should be carefully followed during testing to ensure best accuracy.• Color or suspended matter in large amounts may c

12MEASUREMENT PROCEDURE• Whenever the cuvette is placed into the measurement cell, itmust be dry outside, and completely free of fingerprints, oilor d

13• When the beeper sounds briefly and theLCD displays dashes, the meter is ready.The blinking “ZERO” indicates that theinstrument needs to be zeroed

14• Remove the cuvette.• Add the content of one packet ofHI 93721-0 Iron High Range reagent tothe cuvette. Replace the cap and shakegently until disso

15Calcium (Ca2+): above 10,000 mg/L as CaCO3Copper (Cu2+): does not interfere: reagent contains a maskingagent.Magnesium (Mg2+): above 100,000 mg/L as

16• After a few seconds, the display will show“-0.0-”. The meter is now zeroed and readyfor validation.• Remove the cuvette.• Place the CAL CHECKTM St

17CALIBRATION PROCEDURENote: It is possible to interrupt calibration procedure at any time by pressing CAL CHECK orON/OFF keys.Warning: Do not calibra

18• After a few seconds the display will show“-0.0-”. The meter is now zeroed and readyfor calibration. The blinking “READ” asks forreading calibratio

19• Press GLP/ to edit the desired day(01-31). If the key is kept pressed theday number is automatically increased.Note: It is possible to change the

2TABLE OF CONTENTSPRELIMINARY EXAMINATION ... 3GENERAL DESC

20In the GLP mode, the last user calibration date can be consulted and the factory calibration canbe restored.To display the calibration date:• Press

21• Press READ/ /TIMER to enter in thefactory calibration restore screen. Theinstrument asks for confirmation of usercalibration delete.• Press ZERO/C

22• Turn the instrument off by pressing ON/OFF.• Turn the instrument upside down and remove the battery cover by turning it counterclockwise.• Extract

23Recommendations for UsersBefore using these products, make sure that they are entirely suitable for your specific application and for the environmen

24Printed in EUROPE(ROMANIA)Hanna Instruments Inc.Highland Industrial Park584 Park East DriveWoonsocket, RI 02895 USATechnical Support for CustomersTe

3PRELIMINARY EXAMINATIONPlease examine this product carefully. Make sure that the instrument is not damaged. If anydamage occurred during shipment, pl

4GENERAL DESCRIPTIONABBREVIATIONSThe HI 96721 is an auto diagnostic portable microprocessor meter that benefits from Hanna’syears of experience as a m

5SPECIFICATIONSPRECISION AND ACCURACYRange 0.00 to 5.00 mg/LResolution 0.01 mg/LAccuracy ±0.04 mg/L ± 2% of reading @ 25°CTypical EMC Deviation ±0.01

6PRINCIPLE OF OPERATIONAbsorption of Light is a typical phenomenon of interaction between electromagnetic radiation andmatter. When a light beam cross

71) GLP/ key2) CAL CHECK key3) ZERO/CFM key4) READ/ /TIMER key5) ON/OFF key6) Liquid Crystal Display (LCD)7) Cuvette alignment indicator8) Cuvette h

810852973461KEYPAD DESCRIPTION• ON/OFF: to turn the meter on and off.• ZERO/CFM: to zero the meter prior to measurement, to confirm edited values or t

9ERRORS AND WARNINGSThe instrument shows clear messages when erroneous condition appears. Messages are also displayedwhen the obtained values are outs