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Summary of Contents for Hanna Instruments HI9124
- Page 1 Instruction Manual HI9124, HI9125 Portable Waterproof pH Meters www.hannainst.com...
- Page 2 Dear Customer, Thank you for choosing a Hanna Instruments 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 LCD MESSAGE GUIDE ..............5 FUNCTIONAL DESCRIPTION .............6 SPECIFICATIONS ................7 OPERATIONAL GUIDE ..............8 pH CALIBRATION .................11 pH BUFFER TEMPERATURE DEPENDENCE ........14 SETUP MENU ................15 mV CALIBRATION (HI9125 only) ..........16 TEMPERATURE CALIBRATION ............16 BATTERIES REPLACEMENT ............16 TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS ....18 ELECTRODE CONDITIONING &... -
Page 4: Preliminary Examination
All defective items must be returned in the original packing with the supplied accessories. GENERAL DESCRIPTION The HI9124 and HI9125 are state‑of‑the‑art rugged waterproof, hand held pH meters designed to provide laboratory results and accuracy under harsh industrial conditions. -
Page 5: Lcd Message Guide
LCD MESSAGE GUIDE TAGS & SYMBOLS • Mode tags lights up for indicating the corresponding active mode, and blinks for warning the user. MEASURE on: measurement mode. SETUP on: SETUP menu mode has been entered. CALIBRATION on: calibration mode has been entered. MEMORIZE on: measurement stored in the internal memory and frozen on the display RECALL MEMORIZED on: stored value recalled. -
Page 6: Functional Description
FUNCTIONAL DESCRIPTION 1) Liquid Crystal Display (LCD). 2) RANGE key, to select pH or mV (HI9125 only). 3) ON/OFF key, to turn the meter ON and OFF. 4) CAL key, to enter or exit calibration mode. 5) SETUP/CFM key, to enter SETUP mode or to confirm calibration. 6) Battery compartment cap. -
Page 7: Specifications
SPECIFICATIONS ‑2.00 to 16.00 pH ±699.9 mV / ±1999 mV RANGE (HI9125 only) ‑20.0 to 120.0 °C (‑4.0 to 248.0 °F) 0.01 pH RESOLUTION 0.1 mV / 1 mV (HI9125 only) 0.1 °C (0.1 °F) ±0.01 pH ACCURACY ±0.2 mV / ±1 mV (HI9125 only) @ 20 ºC / 68 ºF ±0.4 °C (±0.8 °F) (excluding probe error) -
Page 8: Operational Guide
OPERATIONAL GUIDE INITIAL PREPARATION The instrument is supplied with batteries. In order to place the batteries inside the instrument follow the instructions from page 16. To prepare the instrument for use, connect the pH electrode and the temperature probe to the BNC and temperature sockets on the top of the instrument. - Page 9 The LCD will show the pH measurement and the temperature of the sample. If several measurements are taken successively in different samples, rinse the electrode thoroughly with deionized or tap water and a small amount of the sample to be measured. The pH value of the sample is directly affected by temperature.
- Page 10 ORP MEASUREMENTS (HI9125 only) To perform ORP measurements, connect an optional ORP electrode (see “Accessories” section) to the meter and turn it ON. If necessary, enter the mV mode by pressing RANGE until the display changes to mV. Submerse the ORP electrode 3 cm (1¼”) into the sample to be tested and wait a few minutes for the reading to stabilize.
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Page 11: Ph Calibration
pH CALIBRATION It is recommended to calibrate the instrument frequently, especially if high accuracy is required. The pH range should be recalibrated: • Whenever the pH electrode or temperature probe is replaced. • At least once a week. • After testing aggressive chemicals. •... - Page 12 • The LCD will flash the “WAIT NOT READY” message. • Once the reading is stable, if it is not close to the selected buffer, “WRONG “ and “WRONG “ will blink alternatively; if it is close to the selected buffer the display will change to “READY” and blinking “Press: CFM to confirm calibration point”.
- Page 13 • If the reading is not close to the selected buffer, “WRONG ” and “WRONG ” will blink alternatively; • If the reading is close to the selected buffer and the reading is stable, the “READY” symbol is displayed and the “CFM” symbol starts blinking on the LCD, asking for confirmation.
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Page 14: Ph Buffer Temperature Dependence
pH BUFFER TEMPERATURE DEPENDENCE 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 15: Setup Menu
SETUP MENU Instrument allows the user to configure several parameters through the Setup Menu. To enter the SETUP mode, while in measurement mode, press and hold the SETUP key for about 5 seconds. When the key is released the first parameter will be displayed. -
Page 16: Mv Calibration (Hi9125 Only)
Contact your local Hanna Instruments Office. TEMPERATURE CALIBRATION HI9124 & HI9125 have been precalibrated for temperature at the factory. For optimum accuracy, it is recommended to recalibrate the meter for temperature at least once a year. - Page 17 The instrument is also provided with the BEPS (Battery Error Prevention System) feature which automatically turns the instrument off when the battery level is too low to ensure reliable readings. At start‑up the display will show “0 batt” for few seconds, then the instrument automatically turns off.
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Page 18: 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 19: Electrode Conditioning & Maintenance
ELECTRODE CONDITIONING & MAINTENANCE Not present in gel electrodes. PREPARATION PROCEDURE Remove the electrode protective cap. DO NOT BE ALARMED IF ANY SALT DEPOSITS ARE PRESENT. This is normal with electrodes and they will disappear when rinsed with water. During transport tiny bubbles of air may have formed inside the glass bulb. - Page 20 Soak in Hanna Instruments HI7074 Inorganic CleaningSolution for 15 min. • Oil/grease Rinse with Hanna Instruments HI7077 Oil & Fat Cleaning Solution for 1 min. IMPORTANT: After performing any of the cleaning procedures, rinse the electrode thoroughly with distilled water and soak it in HI70300...
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Page 21: Troubleshooting Guide
TROUBLESHOOTING GUIDE SYMPTOMS PROBLEM SOLUTION Slow reponse/excessive Dirty pH electrode. The electrode needs to be drift. cleaned. Follow the clean‑ ing procedure on page 20. Reading fluctuates up Clogged/dirty junc‑ Clean the electrode. and down (noise). tion. Low electrolyte Refill with fresh electro‑ level (refillable lyte (refillable electrodes electrodes only). -
Page 22: Accessories
ACCESSORIES pH CALIBRATION SOLUTIONS HI70004P pH4.01 Buffer Solution, 20 mL sachet, 25 pcs HI70007P pH7.01 Buffer Solution, 20 mL sachet, 25 pcs HI70010P pH10.01 Buffer Solution, 20 mL sachet, 25 pcs HI7004L pH4.01 Buffer Solution, 500 mL bottle HI7004M pH4.01 Buffer Solution, 230 mL bottle HI7006L pH6.86 Buffer Solution, 500 mL bottle HI7006M... - Page 23 pH ELECTRODES All electrodes part numbers ending in B are supplied with a BNC connector and 1 m (3.3’) cable, as shown below: HI1043B Glass‑body, double junction, refillable, combination pH electrode. Use: strong acid/alkali. HI1053B Glass‑body, triple ceramic, conic shape, refillable, combination pH electrode.
- Page 24 HI1330B Glass‑body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory, vials. HI1331B Glass‑body, semimicro, single junction, refillable, combination pH electrode. 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 25 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, combination pH electrode. Use: milk, yogurt.
- Page 26 Use: general purpose. HI4430B Plastic‑body (PES), gel‑filled, combination gold ORP electrode. Use: general purpose. Consult the Hanna Instruments General Catalog for a complete and wide selection of electrodes. OTHER ACCESSORIES HI721317 Rugged carrying case HI740157 Plastic electrode refilling pipet (20 pcs)
- Page 27 For yours and the meter's safety do not use or store the meter in hazardous environments. WARRANTY HI9124 & HI9125 are guaranteed for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. Electrodes and probes are guaranteed for six months.
- 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 MAN9125 10/18...
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