Hanna Instruments HI2210 Instruction Manual
Microprocessor-based ph/mv/c bench meters
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Summary of Contents for Hanna Instruments HI2210
- Page 1 Instruction Manual HI2210 HI2211 Microprocessor-based pH/mV/°C Bench Meters www.hannainst.com...
- Page 2 Dear Customer, Thank you for choosing a Hanna Instruments Office product. Please read this instruction manual carefully before using these instruments. This manual will provide you with the necessary information for correct use of these instruments, as well as a precise idea of their versatility.
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Page 3: Table Of Contents
TABLE OF CONTENTS PRELIMINARY EXAMINATION ............4 GENERAL DESCRIPTION ..............4 FUNCTIONAL DESCRIPTION ............5 SPECIFICATIONS ................6 OPERATIONAL GUIDE ..............7 pH CALIBRATION ................10 TEMPERATURE CALIBRATION (for technical personnel only) ...13 pH BUFFER TEMPERATURE DEPENDENCE ........15 ELECTRODE CONDITIONING AND MAINTENANCE ......16 TROUBLESHOOTING GUIDE ............19 TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS ....20 ACCESSORIES ................21... -
Page 4: Preliminary Examination
All defective items must be returned in the original packing with the supplied accessories. GENERAL DESCRIPTION The Hanna Instruments HI2210 and HI2211 are microprocessor based pH and temperature bench meters. HI2211 can also be used for ion concentration (ISE) and Oxidation Reduction Potential (ORP) in the mV range. -
Page 5: Functional Description
FUNCTIONAL DESCRIPTION Front Panel Rear Panel pH/ORP pH/ORP Ref. Ref. TEMP TEMP Power 12Vdc 1) Liquid Crystal Display (LCD). 2) CAL key, to enter and exit calibration mode. 3) CFM key, to confirm different values. 4) °C and °C keys, to manually increase/decrease tempera- ture or select pH buffer. -
Page 6: Specifications
SPECIFICATIONS –2.00 to 16.00 pH ±399.9 mV (HI2211 only) Range ±2000 mV (HI2211 only) –20.0 to 120.0 °C 0.01 pH 0.1 mV (HI2211 only) Resolution 1 mV (HI2211 only) 0.1 °C ±0.01 pH Accuracy ±0.2 mV (HI2211 only) @20 °C / 68 °F ±1 mV (HI2211 only) ±0.4 °C (excluding probe error) Automatic, 1 or 2 point with 5 memorized... -
Page 7: Operational Guide
OPERATIONAL GUIDE POWER CONNECTION Plug the 12 VDC adapter into the power supply socket. Notes: These instruments use non volatile memory to retain the pH, mV, temperature calibrations and all other settings, even when unplugged. Make sure a fuse protects the main line. ELECTRODE AND PROBE CONNECTIONS For pH or ORP combination electrode connect to the BNC connector on the back of the instrument. - Page 8 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.
- Page 9 TEMPERATURE MEASUREMENTS Connect the HI7662 temperature probe to the TEMP socket and turn the instrument on. Submerse the temperature probe into the sample and allow the reading on the secondary LCD to stabilize. MEMORY FUNCTION Press and hold down MEM key to store the last reading in the meter’s memory.
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Page 10: Ph Calibration
pH 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. - Page 11 • When the reading is stable and close to the selected buffer, “READY” message will appear and “CFM” message will blink. • Press CFM to confirm calibration. • The calibrated value is then displayed on the primary LCD and the secondary LCD will display the second expected buffer value.
- Page 12 • The “WRONG” message and temperature value are displayed blinking if the temperature reading is out of the defined temperature range of the buffer. Calibration cannot be confirmed in this situation. • Press RANGE to display the temperature reading on the LCD during calibration (HI2211 only).
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Page 13: Temperature Calibration (For Technical Personnel Only)
TEMPERATURE CALIBRATION (for technical personnel only) All the instruments are factory calibrated for temperature. Hanna Instruments’ temperature probes are interchangeable and no temperature calibration is needed when they are replaced. If the temperature measurements are inaccurate, temperature recalibration should be performed. For an accurate recalibration, contact your local Hanna Instruments Office. - Page 14 • Submerse 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.
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Page 15: Ph Buffer Temperature Dependence
pH 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. During calibration the instrument will automatically calibrate to the pH value corresponding to the measured or set temperature. TEMP pH VALUES °C... -
Page 16: Electrode Conditioning And Maintenance
ELECTRODE CONDITIONING AND MAINTENANCE PREPARATION PROCEDURE Remove the protective cap of the pH electrode. DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal with electrodes. They will disappear when rinsed with water. During transport, tiny bubbles of air may form inside the glass bulb affecting proper functioning of the electrode. - Page 17 For refillable electrodes: If the filling solution (electrolyte) is more than 2½ cm (1”) below the fill hole, add HI7082 or HI8082 3.5M KCl Electrolyte Solution for double junction or HI7071 or HI8071 3.5M KCl+AgCl Electrolyte Solution for single junction electrodes. Unscrew the fill hole screw during measurements.
- Page 18 CLEANING PROCEDURE • General Soak in Hanna Instruments HI7061 or HI8061 General Cleaning Solution for approximately ½ hour. • Protein Soak in Hanna Instruments HI7073 or HI8073 Protein Cleaning Solution for 15 minutes. • Inorganic Soak in Hanna Instruments HI7074 Inorganic Cleaning Solution for 15 minutes.
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Page 19: Troubleshooting Guide
TROUBLESHOOTING GUIDE SYMPTOMS PROBLEM SOLUTION Slow response/ Dirty pH electrode. Clean the electrode and excessive drift. then soak the tip in HI7061 or HI8061 for 30 minutes. Readings fluctuate Clogged/dirty junction. Clean the electrode. Refill up and down Low electrolyte level with fresh solution (for (noise). -
Page 20: Temperature Correlation For Ph Sensitive Glass
The pH at which the interference starts to be significant depends upon the composition of the glass. This interference is called alkaline error and causes the pH to be underestimated. Hanna Instruments’ glass formulations have the indicated characteristics. Sodium Ion Correction for Glass at 20-25 °C Concentration Error 13.00... -
Page 21: Accessories
ACCESSORIES pH BUFFER SOLUTIONS HI70004P pH4.01 Buffer Sachets, 20 mL, 25 pcs. HI70007P pH7.01 Buffer Sachets, 20 mL, 25 pcs. HI70010P pH10.01 Buffer Sachets, 20 mL, 25 pcs. HI7004L pH4.01 Buffer Solution, 500 mL bottle HI7006L pH6.86 Buffer Solution, 500 mL bottle HI7007L pH7.01 Buffer Solution, 500 mL bottle HI7009L... - Page 22 ORP PRETREATMENT SOLUTIONS HI7091L Reducing Pretreatment Solution, 500 mL bottle HI7092L Oxidizing Pretreatment Solution, 500 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: HI1043B Glass-body, double junction, refillable, combination pH electrode.
- Page 23 HI1330B Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory, vials. HI1331B Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: flasks. HI1230B Plastic-body (PES), double junction, gel-filled, combination pH electrode. Use: general, field. HI2031B Glass-body, semimicro, conic, refillable, combination pH electrode. Use: semisolid products.
- Page 24 FC100B Plastic-body (PVDF), double junction, refillable, combination pH electrode. Use: general purpose for food industry. FC200B Plastic-body (PVDF), open junction, conic, Viscolene, non-refillable, combination pH electrode. Use: meat & cheese. FC210B Glass-body, double junction, conic, Viscolene, non-refillable, combina- tion pH electrode. Use: milk, yogurt. FC220B Glass-body, triple-ceramic, single junction, refillable, combination pH electrode.
- Page 25 Glass-body, refillable, combination platinum ORP electrode. Use: titration. HI3230B Plastic-body (PES), gel-filled, combination platinum ORP electrode. Use: general purpose. HI4430B Plastic-body (PES), gel-filled, combination gold ORP electrode. Use: general purpose. Consult the Hanna Instruments General Catalog for more electrodes with screw-type or BNC connectors.
- Page 26 EXTENSION CABLE FOR SCREW-TYPE ELECTRODES (SCREW TO BNC ADAPTER) HI7855/1 Extension cable 1 m (3.3’) long HI7855/3 Extension cable 3 m (9.9’) long OTHER ACCESSORIES Voltage adapter from 115 VAC to 12 VDC HI710005 (USA plug) Voltage adapter from 230 VAC to 12 VDC HI710006 (European plug) Voltage adapter from 240 VAC to 12 VDC...
- Page 27 If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is 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.
- Page 28 World Headquarters Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA www.hannainst.com Local Office Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA Phone: 800.426.6287 Fax: 401.765.7575 e-mail: tech@hannainst.com MAN2211 07/18...