Instruction Manual HI 2210 HI 2211 Microprocessor-based pH/mV/°C Bench Meters w w w. h a n n a i n s t .
Dear Customer, Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using the instruments. This manual will provide you with the necessary information for correct use of the instruments, as well as a precise idea of their versatility. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com or view our worldwide contact list at www.hannainst.com. These instruments are in compliance with directives.
PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipping. If there is any damage, notify your Dealer or the nearest Hanna Customer Service Center. Each instrument is supplied with: • HI 1131B Glass-body Combination pH Electrode • HI 7662 Temperature Probe • HI 76404 Electrode Holder • pH 4.01 & 7.
OPERATIONAL GUIDE SPECIFICATIONS POWER CONNECTION –2.00 to 16.00 pH ±399.9 mV (HI 2211 only) ±2000 mV (HI 2211 only) RANGE –9.9 to 120.0 °C 0.01 pH 0.1 mV (HI 2211 only) 1 mV (HI 2211 only) RE SOLUTION 0.1 °C ±0.01 pH ±0.2 mV (HI 2211 only) ±1 mV (HI 2211 only) ACCURACY @ 20°C / 68°F ±0.5 °C (0.0 – 100.0 °C) ±1 °C (outside) (excluding probe error) pH Calibration 1 or 2 point calibration, 5 buffers a va ila b le (4.01, 6.86, 7.01, 9.18, 10.
If measurements are taken successively in different samples, it is recommended to rinse the electrode thoroughly with deionized water or tap water and then with some of the next sample in order to prevent cross-contamination. The pH reading is affected by temperature. In order to measure the pH accurately, the temperature effect must be compensated for.
p H CALIBRATION Calibrate the instrument often, especially if high accuracy is required. The instrument should be recalibrated: • Whenever the pH electrode is replaced. • At least once a week. • After testing aggressive chemicals. PREPARATION Pour small quantities of the buffer solutions into clean beakers. If possible use plastic or glass beakers to minimize any EMC interferences.
• Press RANGE to display the temperature reading on the LCD during calibration (HI 2211 only). ONE-POINT CALIBRATION • Proceed as described in “Two-point calibration” section. • Press CAL after the first calibration point was confirmed. The instrument will return to measurement mode and will memorize the one-point calibration data. Note: Press and hold down CFM and then press CAL.
• Immerse the temperature probe in the second vessel as near as possible to the reference thermometer. Allow a few seconds for the probe to stabilize. • Use the ARROW keys to set the reading on the secondary LCD to that of the hot water. p H BUFFER TEMPERATURE DEPENDENCE The temperature has an effect on pH. The calibration buffer solutions are affected by temperature changes to a lesser degree than normal solutions.
ELECTRODE CONDITIONING & MAINTENANCE For refillable electrodes: If the filling solution (electrolyte) is more than 2½ cm (1") below the fill hole, add HI 7082 or HI 8082 3.5M KCl Electrolyte Solution for double junction or HI 7071 or HI 8071 3.5M KCl+AgCl Electrolyte Solution for single junction electrodes. Unscrew the fill hole screw during measurements. For AmpHel ® electrodes: If the electrode does not respond to pH changes, the battery is dead and the electrode should be replaced.
CLEANING PROCEDURE TROUBLESHOOTING GUIDE • General Soak in Hanna HI 7061 or HI 8061 General Cleaning Solution for approximately ½ hour. • Protein Soak in Hanna HI 7073 or HI 8073 Protein Cleaning Solution for 15 minutes. Soak in Hanna HI 7074 Inorganic Cleaning • Inorganic Solution for 15 minutes. • Oil/grease Rinse with Hanna HI 7077 or HI 8077 Oil and Fat Cleaning Solution.
TEMPERATURE CORRELATION FOR p H SENSITIVE GLASS The resistance of glass electrodes partially depends on the temperature. The lower the temperature, the higher the resistance. It takes more time for the reading to stabilize if the resistance is higher. In addition, the response time will suffer to a greater degree at temperatures below 25 °C. Since the resistance of the pH electrode is in the range of 50-200 Mohms, the current across the membrane is in the pico Ampere range.
ORP PRETREATMENT SOLUTIONS HI 7091L Reducing Pretreatment Solution, 460 mL bottle HI 7092L Oxidizing Pretreatment Solution, 460 mL bottle pH ELECTRODES All electrodes part numbers ending with B are supplied with BNC connector and 1 m (3.3') cable, as shown below: HI 1330B Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory, vials. 5mm DIA 0.2" 5mm 0.2" HI 1330 120 mm 4.7" "S" VERSION HI 1043B Glass-body, double junction, refillable, combination pH electrode.
FC 100B Plastic-body (PVDF), double junction, refillable, combination pH electrode. Use: general purpose for food industry. HI 1413B Glass-body, single junction, flat tip, Viscolene, non-refillable, combination pH electrode. Use: surface measurement. 12 mm 0.5" 12 mm 0.5" FC 100 HI 1413 120 mm 4.7" 110 mm 4.3" FC 200B Plastic-body (PVDF), open junction, conic, Viscolene, non-refillable, combination pH electrode. Use: meat & cheese. 6 mm 0.
EXTENSION CABLE FOR SCREW-TYPE ELECTRODES (SCREW TO BNC ADAPTER) HI 7855/1 Extension cable 1 m (3.3') long HI 7855/3 Extension cable 3 m (9.9') long HI 7855 SERIES CABLE CONNECTORS CONNECTOR AND 3.0 mm (0.
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: Tel. (21) 4584.2941 • Fax (21) 4584.2942 Japan: Tel. (03) 3258.9565 • Fax (03) 3258.9567 Korea: Tel. (02) 2278.5147 • Fax (02) 2264.1729 Malaysia: Tel. (603) 5638.9940 • Fax (603) 5638.9829 Singapore: Tel. 6296.
