User manual HANNA INSTRUMENTS HI 931402

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[. . . ] Instruction Manual HI 931402 HI 931410 Microprocessor Bench-top pH Meters ins rum pH ns / CFM / CFM CAL pH ca libratio n proc edure Start calibr Selec ation t buffe m wh r 1 val dy MR COMM RANG ue Confir Functio MEM Recal n ring dis us sto ion play res ta ult Selec Confir t buffe en rea ue For sto °C m wh r 2 val dy en rea l previo For RS t pH or HI 93 MIC 1402 pH M ROPROC ETER ES S O R MEM E Se lec 232 con ORP red da figurat measu remen t ON °C OFF MR °C CAL COMM CFM RANGE This Instrument is in Compliance with the CE Directives www. hannainst. com Dear Customer, Thank you for choosing a Hanna Instruments Product. Please read this instruction manual carefully before using the instrument. This manual will provide you with all the necessary information for the correct use of the instrument, as well as a precise idea of its versatility in a wide range of applications. These instruments are in compliance with CSA, (EN 50081-1 and EN 50082-1) UL and directives. [. . . ] · If the pH/mV key is pressed at pH this point, the calibration process is ended and only the offset of the mV meter is calibrated. For greatest accuracy, however, it is recommended that a two-point calibration is performed. TWO POINT CALIBRATION · Proceed as described in "One point calibration" but do not quit calibration by pressing the pH/mV key at the end. · After the first calibration point is confirmed, immerse the pH electrode and the temperature probe into the second buffer solution (pH 4. 01 or pH 10. 01) and shake briefly. HI 7004 23 Note: the electrode should be submerged approximately 4 cm (1½") into the solution. The temperature probe should be located as close as possible to the pH electrode. · Rinse the electrode and the temperature probe before immersing them into pH 4. 01/ pH10. 01 calibration buffer, shake briefly and wait for thermal equilibrium. · The meter automatically recognizes the buffer value and prompts for the second at "t2" (pH 4. 01, acid) or "t3" (pH 10. 01, alkaline). · Press the CON key to confirm the pH value and the display will indicate the temperature compensated buffer value e. g. if the temperature is at 25°C, the display will show "pH 4. 01" or "10. 01", depending on the solution used. °C pH 4 cm (1½") CON If the temperature is at 20°C, the display will show respectively "pH 4. 00" or "pH 10. 06" (see page 26). · Press CON key again to confirm calibration. The pH symbol will stop flashing and the unit is now calibrated and ready for measurements. CON °C pH 24 · If the reading is drifting, turn the meter off and repeat the calibration procedure waiting longer time for the reading to stabilize. However, usually 1 or 2 minutes are enough to prevent drifting of the reading. Note: If you need to unplug the instrument, press the OFF key thus switching the instrument off before disconnecting the power cord. In this way the instrument will retain the calibration data. Otherwise, re-calibration might be necessary. In the case of a power failure while the instrument is operational, re-calibration might be required. 25 pH VALUES AT VARIOUS TEMPERATURE Temperature has an effect on pH. The calibration buffer solutions are effected by temperature changes to a lesser degree than normal solutions. During calibration the meter will automatically calibrate to the pH value corresponding to the measured or set temperature. For manual temperature compensation please refer to the following chart. pH Buffers °C 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 °F 32 41 50 59 68 77 86 95 104 113 122 131 140 149 158 167 176 185 194 203 4. 01 4. 01 4. 00 4. 00 4. 00 4. 00 4. 01 4. 02 4. 03 4. 04 4. 05 4. 06 4. 07 4. 09 4. 11 4. 12 4. 14 4. 16 4. 17 4. 19 4. 20 6. 86 6. 98 6. 95 6. 92 6. 90 6. 88 6. 86 6. 85 6. 84 6. 84 6. 83 6. 83 6. 84 6. 84 6. 85 6. 85 6. 86 6. 86 6. 87 6. 88 6. 89 7. 01 7. 13 7. 10 7. 07 7. 04 7. 03 7. 01 7. 00 6. 99 6. 98 6. 98 6. 98 6. 98 6. 98 6. 99 6. 99 6. 99 7. 01 7. 02 7. 03 7. 04 9. 18 9. 46 9. 39 9. 33 9. 27 9. 22 9. 18 9. 14 9. 10 9. 07 9. 04 9. 01 8. 99 8. 97 8. 95 8. 93 8. 91 8. 89 8. 87 8. 85 8. 83 10. 01 10. 32 10. 24 10. 18 10. 12 10. 06 10. 01 9. 96 9. 92 9. 88 9. 85 9. 82 9. 79 9. 77 9. 76 9. 75 9. 74 9. 73 9. 74 9. 75 9. 76 For instance, if the buffer temperature is at 25°C, the display will show pH 4. 01 or 7. 01 or 10. 01. If the buffer temperature is at 20°C, the display will show pH 4. 00/7. 03/10. 06. If the buffer temperature is at 50°C, the display will show pH 4. 06/6. 98/9. 82. 26 TEMPERATURE AND mV CALIBRATION All Hanna bench-top pH meters have been factory calibrated for the temperature and mV and is ready for measurements. The temperature probes and ORP electrodes are interchangeable and no temperature or mV calibration is needed when the temperature probe or the ORP electrode is replaced. [. . . ] Use: general purpose. 12 mm 0. 5" HI 4430 120 mm 4. 7" "S" VERSION ® Ultem is registered Trademark of "General Electrics Co. " 47 EXTENSION CABLES FOR SCREW-TYPE ELECTRODES ONLY (SCREW TO BNC CONNECTOR): HI 7855 SERIES CABLE CONNECTORS CONNECTOR AND 3. 0 mm (0. 12") CABLE WITH BNC CONNECT TO SCREW TYPE ELECTRODES CONNECT TO THE BNC SOCKET OF THE METER HI7855/1 HI7855/3 HI7855/5 HI7855/10 HI7855/15 Extension cable 1m (3. 3') long Extension cable 3m (9. 9') long Extension cable 5m (16. 5') long Extension cable 10m (33') long Extension cable 15m (49. 5') long POWER UNITS: HI 710005 HI 710006 Voltage adapter from 110 VAC to 12 VDC Voltage adapter from 220 VAC to 12 VDC 48 OTHER ACCESSORIES: ChecktempC Pocket-size thermometer with penetration probe and 0. 1°C resolution (range -50. 0 to 150. 0°C) Electrode holder HI76405 HI 7669/2W HI 8427 HI 92000 HI 920010 HI 931001 Temperature probe with 1 m (3. 3') screened cable pH and ORP electrode simulator with 1 m (3. 3') coaxial cable ending in female BNC connectors (HI 7858/1) Windows® compatible application software PC connection cable pH and ORP electrode simulator with display with 1 m (3. 3') coaxial cable ending in female BNC connectors (HI 7858/1) Windows® is registered Trademark of "Microsoft Co. " 49 ELECTRODE APPLICATION REFERENCE GUIDE Application 1. Micro plate sampling of less than 100 mL 24. Titrations with constant temperature range 39. Titrations with wide temperature range 40. [. . . ]

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