Instruction Manual HI 9126 Calibration Check Waterproof pH/mV/ºC Meter 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 instrument. This manual will provide you with the necessary information for correct use of the instrument, as well as a precise idea of its versatility. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com.
SPECIFICATIONS FUNCTIONAL DESCRIPTION –2.00 to 16.00 pH RANGE ±699.9 mV / ±1999 mV –20.0 to 120.0 °C (–4.0 to 248.0 °F) 0.01 pH RE SOL UTION 0.1 mV / 1 mV 0.1 °C (0.1 °F) ±0.01 pH ACCURACY @ 20 ºC / 68 ºF ±0.2 mV / ±1 mV ±0.4 °C (±0.8 °F) (excluding probe error) ±0.02 pH Typical E MC D eviation ±0.2 mV / ±1 mV ±0.4 °C (±0.8 °F) 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14) Liquid Crystal Display (LCD). RANGE key, to select pH or mV. ON/OFF key, to turn the meter ON and OFF.
OPERATIONAL GUIDE INITIAL PREPARATION The meter is supplied with batteries (for details see page 19). 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. The temperature probe can be used independently to take temperature measurements, or it can be used in conjunction with the pH electrode to utilize the meter's Automatic Temperature Compensation (ATC) mode.
ORP MEASUREMENTS 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. Submerse the ORP electrode 3 cm (1¼”) into the sample to be tested and wait for the reading to stabilize. Measurements within the ±699.9 mV range are displayed with 0.1 mV resolution, while outside this range the resolution is 1 mV.
p H CALIBRATION It is recommended to calibrate the instrument frequently, 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. • When extreme accuracy is required. • When the calibration time-out is expired (if feature is enabled). PROCEDURE The meter offers a choice of 7 memorized buffers (1.68, 4.01, 6.86, 7.01, 9.18, 10.01 and 12.
Note: During calibration, the secondary LCD shows the selected buffer value; press RANGE to display the buffer temperature. Note: To clear a previous calibration and return to the default values, press CLR at any time after entering the calibration mode. The LCD will show “CLr CAL” for one second, and then will return to normal measurement mode. The LCD will show an empty bargraph to warn the user that the meter is not calibrated.
CONDITION The display is provided with a 5-dot bargraph (unless disabled) which gives an indication of the electrode status after calibration: Bargraph indication Condition value All 5 dots steady 81 to 100% of life 4 dots steady 61 to 80% 3 dots steady 41 to 60% 2 dots steady 21 to 40% 1 dot steady 1 to 20% 1 dot blinking 0% Only frame is ON No info available The “condition” bargraph remains active for 12 hours after calibration, then only the frame is shown.
SETUP MENU The instrument allows the user to configure several parameters through the Setup Menu. To enter the Setup Menu, while in measurement mode, press and hold the SETUP key for about 5 seconds. Once the menu is entered, each parameter can be changed by using the arrow keys; then pressing the CFM key will confirm the value and scroll to the next parameter. 4. Calibration segments: On (default) or Off. This enables or disables the bargraph, the “CLEAN ELECTRODE” message and the buffer segments. 1.
m V CALIBRATION BATTERIES REPLACEMENT HI 9126 has been precalibrated for mV range at the factory. For optimum accuracy, it is recommended to recalibrate the meter for mV readings at least once a year. Contact your Dealer or the nearest Hanna Customer Service Center for more information. The instrument is supplied with batteries. First time you start working with the instrument, insert the supplied batteries in the battery compartment observing the correct polarity (see page 20).
To replace the batteries, follow the next steps: • Turn OFF the instrument. • Open the battery compartment cap (located on the top of the instrument). • Remove old batteries. • Insert three new 1.5V AAA batteries in the battery compartment, observing the polarity on the rear of the instrument. • Reattach the battery compartment cap. LCD MESSAGE GUIDE TAGS & SYMBOLS • Mode tags light up for indicating the corresponding active mode, and blink for warning the user. SETUP on: setup menu mode has been entered.
TEMPERATURE CORRELATION FOR p H SENSITIVE GLASS ELECTRODE CONDITIONING & MAINTENANCE 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.
For refillable electrodes, if the refill solution (electrolyte) is more than 2½ cm (1") below the fill hole, add the appropriate Electrolyte Solution. MEASUREMENT Rinse the electrode tip with distilled water, submerse it 3 cm (1¼”) in the sample and stir gently for a few seconds. For a faster response and to avoid cross contamination of the samples, rinse the electrode tip with the solution to be tested, before taking any measurements.
ACCESSORIES pH CALIBRATION SOLUTIONS HI 70004P pH 4.01 Buffer Solution, 20 mL sachet, 25 pcs HI 70007P pH 7.01 Buffer Solution, 20 mL sachet, 25 pcs HI 70010P pH 10.01 Buffer Solution, 20 mL sachet, 25 pcs HI 7004L pH 4.01 Buffer Solution, 500 mL bottle HI 7004M pH 4.01 Buffer Solution, 230 mL bottle HI 7006L pH 6.86 Buffer Solution, 500 mL bottle HI 7006M pH 6.86 Buffer Solution, 230 mL bottle HI 7007M pH 7.01 Buffer Solution, 500 mL bottle HI 7007M pH 7.01 Buffer Solution, 230 mL bottle HI 7009L pH 9.
HI 1330B Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory, vials. 5mm DIA 0.2" 5mm 0.2" FC 100B Plastic-body (PVDF), double junction, refillable, combination pH electrode. Use: general purpose for food industry. 12 mm 0.5" FC 100 HI 1330 120 mm 4.7" 120 mm 4.7" "S" VERSION HI 1331B Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: flasks. 8 mm 0.
HI 1413B Glass-body, single junction, flat tip, Viscolene, non-refillable, combination pH electrode. Use: surface measurement. 12 mm 0.5" HI 1413 110 mm 4.3" ORP ELECTRODES HI 3131B Glass-body, refillable, combination platinum ORP electrode. Use: titration. 12 mm 0.5" HI 3131 "S" VERSION 150 mm 5.9" HI 3230B Plastic-body (PES), gel-filled, combination platinum ORP electrode. Use: general purpose.
Hanna Instruments Inc. Highland Industrial Park 584 Park East Drive Woonsocket, RI 02895 USA Technical Support for Customers Tel. (800) 426 6287 Fax (401) 765 7575 E-mail tech@hannainst.com www.hannainst.
