Hanna-instruments HI 96720 Manuel d'utilisateur Page 1

1Instruction ManualHI 96720CCalcium Hardness ISMwww.hannainst.com

18 19• Press GLP/ to edit the desired year(2000-2099). If the key is kept pressed,the year number is automaticallyincreased.• Press GLP/ to edit the d

20 21To display the calibration date:• Press GLP/ to enter GLP mode. Thecalibration month and day will appear onthe main display and the year on these

22 23Recommendations for UsersBefore using these products, make sure that they are entirely suitable for your specific application and for the environ

24MAN96720 12/10Printed in EUROPE(ROMANIA)Hanna Instruments Inc.Highland Industrial Park584 Park East DriveWoonsocket, RI 02895 USATechnical Support

2 3TABLE OF CONTENTSPRELIMINARY EXAMINATION ... 3GENERAL DE

4 5GENERAL DESCRIPTIONABBREVIATIONSSPECIFICATIONSPRECISION AND ACCURACYThe HI 96720 is an auto diagnostic portable microprocessor meter that benefits

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

8 910852973461ERRORS AND WARNINGSKEYPAD DESCRIPTION• ON/OFF: to turn the meter on and off.• ZERO/CFM: to zero the meter prior to measurement, to confi

10 11The instructions listed below should be carefully followed during testing to ensure best accuracy.• Color or suspended matter in large amounts ma

12 13• It is important that the sample does not contain any debris. This wouldcorrupt the reading.• Each time the cuvette is used, the cap must be tig

14 15VALIDATION PROCEDURE• After a few seconds, the display willshow “-0.0-”. The meter is now zeroedand ready for measurement.• Remove the blank and

16 17CALIBRATION PROCEDURENote: It is possible to interrupt calibration procedure at any time by pressing CAL CHECK orON/OFF keys.Warning: Do not cali