Instruction Manual pH211R Microprocessor-based Bench pH/mV/°C Meter with Analog Output www.hannainst.
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 correct use of the instrument, as well as a precise idea of its versatility in a wide range of applications. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com. This instrument is in compliance with the directives.
FUNCTIONAL DESCRIPTION SPECIFICATIONS Range -2.00 to 16.00 pH ±399.9 / ±2000 mV -9.9 to 120.0°C Resolution Accuracy (@20°C/68°F) Typical EMC Deviation 0.01 pH 0.1 / 1 mV 0.1°C ±0.01 pH ±0.2 / ±1 mV ±0.5°C ±0.03 pH ±2 mV / ±0.3°C pH Calibration Automatic, 1 or 2 point with 5 memorized buffers (pH 4.01, 6.86, 7.01, 9.18, 10.01) Temperature Compensation Automatic (with HI 7669/2W probe) or manual -9.
OPERATIONAL GUIDE Power Connection Plug the 12 Vdc adapter into the power supply socket. Note: Make sure the mains line is protected by a fuse. Electrode and Probe Connections Connect the BNC of the pH or ORP electrode to the BNC socket on the rear panel. For electrodes with a separate reference, connect the reference electrode plug to the reference socket (#12 on page 4). For temperature measurements and automatic temperature compensation, connect the temperature probe to the appropriate socket.
OUTPUT RECORDER FUNCTION • Switch the meter on and press the RANGE key to enter the mV mode. 4 cm (1½") • Submerge the ORP electrode tip (4 cm / 1½") into the sample. Allow a few minutes for the reading to stabilize. Connect the recorder to the analog output socket and turn the instrument ON. The value on the analog output will be related with the pH or mV value displayed on the LCD as follows: pH: 0 7 14 mV: -2000 0 2000 analog output: 0V 2.
• Press CAL. The "CAL" and " displayed. • Press CAL to quit calibration. The meter will save the one-point calibration data and return to normal mode. 4 cm (1½") One-Point Calibration • Immerse pH electrode and temperature probe approximately 4 cm (1½") into any of the available buffer solutions (pH 4.01, 6.86, 7.01, 9.18 or 10.01) and stir gently. The temperature probe should be close to the pH electrode. " indicators, and "7.
ELECTRODE CONDITIONING & MAINTENANCE Note: To prevent damage to the pH electrode, remove it from the solution before turning the meter off. With the meter OFF, detach the electrode from the instrument and immerse it in the storage solution. For refillable electrodes If the filling solution (electrolyte) is more than 2.5 cm (1") below the fill hole, add HI 7082 3.5M KCl electrolyte solution for double junction or HI 7071 3.5M KCl+AgCl electrolyte solution for single junction electrodes.
CLEANING PROCEDURE General Soak in Hanna HI 7061 general cleaning solution for approximately 30 minutes. Removal of films, dirt or deposits on the membrane/junction: - Protein Soak in Hanna HI 7073 protein cleaning solution for 15 minutes. - Inorganic Soak in Hanna HI 7074 inorganic cleaning solution for 15 minutes. - Oil/grease Rinse with HI 7077 Oil & Fat cleaning solution.
TROUBLESHOOTING GUIDE Symptoms Problem Solution The meter is slow in The electrode is not work- Leave the electrode in a storresponding or gives ing or the reference age solution after cleaning junction is clogged faulty readings the junction. If problem persists, replace the electrode The meter does not ac- Out of order pH electrode Follow the cleaning procecept the 2nd buffer dure.
ORP PRETREATMENT SOLUTIONS HI 7091L Reducing pretreatment solution, 500 mL bottle HI 7092L Oxidizing pretreatment solution, 500 mL bottle pH ELECTRODES All electrode part numbers ending in B are supplied with BNC connector and 1 m (3.3') cable. 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 PVDF body, 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 PVDF body, open junction, conic, Viscolene, non-refillable, combination pH electrode. Use: meat & cheese. 6 mm 0.
Extension cables 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 TECHNICALOFSERVICE CONTACTS CE AND DECLARATION CONFORMITY 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.
