Hanna Instruments HI 8915 - Manual

10 11 OPERATIONAL GUIDE INITIAL PREPARATION Each meter is supplied complete with a 9V battery. Slide off thebattery compartment cover on the back of the meter, install thebattery while paying attention to its polarity.Always remove the electrode protective cap before taking any mea-surements. If the...

12 13 Notes : • In order to take accurate pH measurements, make sure that the instrument is calibrated for pH before use. • For a faster response time when using refillable electrodes , unscrew the refill hole cap. • If measurements are taken in different samples successively, it is recommended to c...

14 15 p H C A L I B R A T I O N For best accuracy, frequent calibration of the instrument is recom-mended. The instrument should be recalibrated for pH: a) Whenever the pH electrode or temperature probe is replaced.b) At least once a month.c) After testing aggressive chemicals.d) Whenever the batter...

16 17 • Stir gently and wait a couple of minutes for thermal equilibrium. Note: The electrode should be submerged approximately 4 cm (1½") into the solution. The temperature probe should be located asclose as possible to the pH electrode. • Press °C to display the temperature of the buffer (e.g....

20 21 If the bulb and/or junction are dry, soak the electrode in HI 70300 Storage Solution for at least one hour. For refillable electrodes: If the refill solution (electrolyte) is more than 2½ cm (1") below the fillhole, add HI 7082 (3.5M KCl Electrolyte Solution) for double junction or HI 7071...

22 23 Inorganic Soak in Hanna HI 7074 Inorganic Cleaning Solu- tion for 15 minutes. Oil / grease Rinse with Hanna HI 7077 Oil and Fat Cleaning Solution. IMPORTANT: After performing any of the above cleaning procedures rinse the electrode thoroughly with distilled water, drain and refill thereference...

24 25 ACCESSORIES pH CALIBRATION SOLUTIONS HI 70004P pH 4.01 buffer solution, 20 mL sachet, 25 pcs HI 7004M pH 4.01 buffer solution, 230 mL bottle HI 7004L pH 4.01 buffer solution, 500 mL bottle HI 7006M pH 6.86 buffer solution, 230 mL bottle HI 7006L pH 6.86 buffer solution, 500 mL bottle HI 70007P...

26 27 FC210B Glass body, double junction, conic, Viscolene, non- refillable combination pH electrode. Use: milk, yogurt. FC220B Glass body, triple ceramic, single junction, refill- able, combination pH electrode. Use: food processing. FC911B PVDF body, double junction, refillable with built- in ampl...

28 MANPHR4 07/05 SALES AND TECHNICAL SERVICE CONTACTS Australia: Tel. (03) 9769.0666 • Fax (03) 9769.0699 China: Tel. (10) 88570068 • Fax (10) 88570060 Egypt: Tel. & Fax (02) 2758.683 Germany: Tel. (07851) 9129-0 • Fax (07851) 9129-99 Greece: Tel. (210) 823.5192 • Fax (210) 884.0210 Indonesia: T...