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Instruction Manual

HI 8424

Portable pH/mV/°C Meter

MAN8424W R2      09/10

Printed in EUROPE

(ROMANIA)

Hanna Instruments Inc.

T

Local Sales and Customer Service Office

Summary of Contents for HI 8424

Page 1: ...Instruction Manual HI 8424 Portable pH mV C Meter MAN8424W R2 09 10 PrintedinEUROPE ROMANIA Hanna Instruments Inc T Local Sales and Customer Service Office ...

Page 2: ...ru ment If under warranty report the model number date of purchase serial number and the nature of the problem If the repair is not covered by the warranty you will be notified of the charges incurred If the instruments are to be returned to Hanna Instruments first obtain a Returned Goods Authorization number from the Technical Service department and then send it with shipping costs prepaid When s...

Page 3: ...an set the following parameters by entering the setup mode through the keyboard enabling or disabling the auto off feature enabling or disabling the acoustic signal selecting the temperature unit C or F GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION GENERAL DESCRIPTION PRELIMINARY EXAMINATION PRELIMINARY EXAMINATION PRELIMINARY EXAMINATION PRELIMINARY EXAMINATION P...

Page 4: ...0S 5 Cheese FC 200B FC200S 6 Dairyproducts FC 911B FC 100B 7 Dirtywater HI 1230B HI 1210S 8 Emulsions HI 1053B HI1050S 9 Environment HI 1230B HI1210S 10 Flasks HI 1331B HI1310S 11 Foodindustrygeneraluse FC 911B FC 100B 12 Fruit FC 200B FC 220B FC 200S 13 Fruitjuices organic FC 210B 14 Galvanizing waste solution HI 1130B HI1110S 15 Highpuritywater HI 1053B HI1050S 16 Horticulture HI 1053B FC 200B H...

Page 5: ...pC pocket size thermometer 50 0 to 150 0 C HI 98502 ChecktempF pocket size thermometer 58 0 to 302 0 F HI 710015 Shockproof rubber boot blue HI 710016 Shockproof rubber boot orange HI 710022 Spare protective case HI 76405 Electrode holder HI 7662 Temperature probe with 1 m 3 3 screened cable HI 8427 pH ORP electrode simulator with 1 m 3 3 coaxial cable and BNC connector HI 931001 pH ORP electrode ...

Page 6: ...display will show the pH value automatically compensated for temperature Notes In order to take accurate pH measurements make sure that the instrument has been calibrated before use see page 9 If measurements are taken in different samples successively it is recom mended to rinse the electrode thoroughly to avoid cross contamination After cleaning it is recommended to rinse the electrode with some...

Page 7: ...case at 25 C ORP MEASUREMENTS Oxidation Reduction Potential ORP measurements provide a quantification of the oxidizing or reducing power of the sample tested Connect the ORP electrode optional to the BNC connector To enter the mV mode turn the instrument ON and press the RANGE key until the display changes to mV Submerge the ORP electrode tip at least 4 cm 1 into the sample to be tested and allow ...

Page 8: ... HOLD again to return to normal mode If enabled keypresses are followed with an acoustic signal A lower note indicates that the key is not currently active To save battery life the meter is provided with an auto off feature which turns the instrument off after 20 minutes of non use This feature can be disabled by the user see Menu selection for details 21 120 mm 4 7 5mm 0 2 5mm DIA 0 2 S VERSION H...

Page 9: ...submerged approximately 4 cm 1 into the solution The temperature probe should be located close to the pH electrode Press RANGE to display pH measurement Press CAL to enter the calibration mode The buffer value 25 C 77 F and the pH symbol will blink on the display The meter expects a pH 7 01 buffer 20 HI 7082 3 5 M KCl electrolyte solution 4 x 30 mL bottle for double junction electrodes HI 8082 3 5...

Page 10: ...m 19 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 8004L pH 4 01 buffer solution 500 mL FDA bottle HI 70007P pH 7 01 buffer solution 20 mL sachet 25 pcs HI 7007M pH 7 01 buffer solution 230 mL bottle HI 7007L pH 7 01 buffer solution 500 mL bottle HI 8007L pH 7 01 buffer...

Page 11: ...ter immerse it 4 cm 1 in the sample and stir gently for a few seconds For a faster response and to avoid cross contamination of the samples rinse the electrode tip with the solution to be tested before taking any measurements STORAGE PROCEDURE To minimize clogging and ensure a quick response time the glass bulb and the junction should always be kept moist When not in use store it with a few drops ...

Page 12: ...UP to move to next step At this point it is possible to set the temperature unit by selecting Unit C or Unit F Press CAL SELECT to toggle the selection and CFM SETUP to exit the menu selection mode and return to normal measurement mode MENU SELECTION MENU SELECTION MENU SELECTION MENU SELECTION MENU SELECTION 17 ELECTRODE CONDITIONING MAINTENANCE ELECTRODE CONDITIONING MAINTENANCE ELECTRODE CONDIT...

Page 13: ... Dirty pH electrode Soak the electrode tip excessive drift in HI 7061 solution for 30 minutes Reading fluctuates Clogged dirty junction Soak the electrode tip up and down noise or low electrolyte level in warm HI 7082 refillable electrodes solution for one hour then rinse it with distilled water refill with fresh electrolyte if necessary Blinking full scale Reading is out of range value Blinking C...

Page 14: ... MESSAGES TROUBLESHOOTING LCD MESSAGES TROUBLESHOOTING LCD MESSAGES TROUBLESHOOTING LCD MESSAGES TROUBLESHOOTING TAGS SYMBOLS pH mV C F Measurement unit of the selected mode ATC Indicates Automatic Temperature Compensation in pH or temperature mode MTC Indicates Manual Temperature Compensation in pH or temperature mode HOLD Blinks when in Hold mode Reading frozen on LCD The user can scroll through...

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