User manual HANNA INSTRUMENTS PH 302

[. . . ] Instruction Manual pH 300 pH 301 pH 302 Microprocessor GLP Bench-top pH/mV/ISE/°C Meters Rel mV ppm pH DATE TIME CFM MEM WRONG °C mV ppm pH INTV CAL LOG 1 BUF 2 3 m s ON OFF PAPER PRINT pH302 pH METER RANGE CAL CFM / TIME PGM ENTER / http://www. hannainst. com These Instruments are in Compliance with the CE Directives 1 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, UL and (EN 50081-1 and EN 50082-1) directives. PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it to make sure that no damage has occurred during shipping. [. . . ] Press CFM to confirm the value. CFM/ CFM 50 51 TEMPERATURE CALIBRATION (for Technical Personnel only) The pH meter has been factory calibrated for the temperature and is ready for measurements. The temperature probes are interchangeable and no temperature calibration is needed when the temperature probe is replaced. If, for any reason, the temperature measurements are inaccurate, re-calibration should be carried out as follows. · Wait for about 30 seconds. The secondary LCD section will show "50. 0°C". CFM °C CAL °C · Immerse the temperature probe in the vessel with hot water. 50 °C (122 °F) INITIAL PREPARATION · Prepare a vessel containing ice (at 0. 0°C/32°F) and water and 0 °C 50 ºC (32 °F) (122 ºF) another one containing hot water (at a temperature of 50. 0°C/122°F). Place insulation material around the container to minimize temperature changes. · Use a ChecktempC or a calibrated thermometer with a resolution of 0. 1 °C as a reference thermometer. °C CFM °C · Wait for about 30 seconds. Press CFM. · Complete your temperature calibration by pressing CAL if you do not want to perform the mV calibration (see page 44). CAL PROCEDURE FOR pH 300 · Switch the pH 300 on while pressing CAL. The secondary LCD section will show "0. 0°C". ON CAL PROCEDURE FOR pH 301 · Switch the pH 301 on while pressing CFM. The secondary LCD section will show "0. 0°C". ON CFM °C CAL °C CAL · Immerse the temperature probe in the vessel with the ice and water. 0 °C (32 °F) °C · Immerse the temperature probe in the vessel with the ice and water and wait for a few minutes. °C 0 °C (32 °F) 52 53 · The secondary LCD will display "0. 0 °C" with the "CAL" indicator. · As soon as the reading is stable the "CFM" indicator will start blinking. °C CAL PROCEDURE FOR pH 302 · Switch the pH302 on while pressing CAL. The secondary LCD section will show "0. 0°C". ON CAL °C CFM CAL · Press the CFM key to confirm the calibration. CFM · Immerse the temperature probe in the vessel with hot water and wait for a few minutes. · As soon as the reading is stable the "CFM" indicator will start blinking. °C 50 °C (122 °F) · Immerse the temperature probe in the vessel with the ice and water and wait for a few minutes. · As soon as the reading is stable the "CFM" indicator will start blinking. · Press CFM to confirm the calibration. °C 0 °C (32 °F) CFM CFM/ °C CAL CFM · Immerse the temperature probe in the vessel with hot water and wait for a few minutes. CFM °C 50 °C (122 °F) · Press CFM to confirm the calibration. · The temperature calibration is complete and the meter will return to the normal operating mode. 54 · The secondary LCD will display "50. 0 °C" with the "CAL" indicator. · As soon as the reading is stable the "CFM" indicator will start blinking. 55 °C CAL CFM CFM/ · Press CFM to confirm the calibration. LOGGING WITH pH 301 This function permits the automatic logging of pH or mV or ION measurements together with the temperature without needing an operator and for a long period of time. Set the appropriate logging interval (see page 14) selectable between 1, 15, 30 seconds or 1, 5, 30, 60, 120, 180 minutes. Select the appropriate measurement mode by pressing the pH or mV or ION key. pH mV ION · The temperature calibration is complete and the meter will return to the normal operating mode. Press LOG and then CAL to enter the logging mode. LOG CAL Once in the logging mode, the interval cannot be changed. LOG CAL Exit the logging mode first (by pressing LOG and then CAL) before setting a new interval. During logging, you can check some information about the logged data. 56 57 Press LOG and the primary LCD will show the current lot number and the secondary LCD will display the current page number. LOG LOG Press LOG again to display the current sample number (the number of values that have been taken in the current lot). LOG when this happens the LCD will show page "0", indicating the overwriting has happened. Each time a new logging period starts, it automatically starts a new page. When the samples collected for a single lot are more than the limit (8000 samples) the meter will automatically stop logging. TO CLEAR LOGGED DATA The entire logged data can be cleared by pressing LOG as soon as the meter is turned on (i. e. [. . . ] Use: titration. 12 mm 0. 5" HI 1413 110 mm 4. 3" HI 3131 150 mm 5. 9" Half-cell electrodes: HI 2110B Glass-body, single half-cell pH electrode. Use: general purpose. 9. 5mm DIA 0. 37" 12 mm 0. 5" "S" VERSION HI 3230B / HI 3210S Plastic-body (Ultem®), gel-filled, combination platinum ORP electrode. Use: general purpose. 12 mm 0. 5" HI 3230 HI 2110 120 mm 4. 7" "S" VERSION 120 mm 4. 7" HI5311 Glass-body, Ag/AgCl reference half-cell electrode, double junction, refillable with 4mm plug with 1m (3. 3') cable. Use: general purpose with wide temperature range. 12 mm 0. 5" HI 4430B / HI 4410S Plastic-body (Ultem®), gel-filled, combination gold ORP electrode. [. . . ]