Instruction Manual HI 9026V Complete Portable Kit for pH, mV & Temperature Measurements in Wine and Must with Calibration-CheckTM w w w . h a n n a i n s t .
Dear Customer, Thank you for choosing a Hanna 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 more precise idea of its versatility. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst.com or contact the nearest technical office. This instrument is in compliance with the directives.
FUNCTIONAL DESCRIPTION SPECIFICATIONS Range 1) 2) 3) 4) 5) 6) 7) 8) BNC plug for pH and ORP electrodes Temperature probe socket Liquid Crystal Display RANGE key, to select pH or mV ON/OFF key, to turn the meter ON and OFF CAL key, to enter/exit calibration mode SETUP/CFM key, to enter setup mode or to confirm calibration UP and DOWN arrow keys, for manual temperature setting, entering menu parameters or changing buffer values 9) MR/CUSTOM BUF key, to recall stored value from memory or to enter custom bu
OPERATIONAL GUIDE INITIAL PREPARATION The meter is supplied complete with batteries. Remove the back cover, unwrap the batteries and install them while paying attention to their polarity. 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.
Notes: • When reading is out of range, the display will flash the closest full-scale value. • If using pH electrode while in mV mode, the meter will measure the mV generated by the pH electrode. MEM and MR FUNCTIONS From normal measurement mode, pressing the MEM key will freeze readings on display and store into internal memory the current values (pH and temperature, or mV and temperature) together with “condition” and buffer segments.
CALIBRATION HI 9026 is factory calibrated for ORP and temperature ranges. If recalibration is needed, please contact your dealer or the nearest Hanna Service Center. 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 is replaced, when the calibration time-out is expired (if feature is enabled), and at least once a month. The meter offers a choice of 7 memorized buffers (1.68, 4.
After calibrating the first point (see above), press the CAL key to end the calibration procedure. Note: With one-point calibration there is not “Condition” and only the frame is shown. Calibration time-out is active.
pH BUFFER TEMPERATURE DEPENDENCE pH readings are strongly affected by temperature. The calibration buffer solutions are affected by temperature changes to a lesser degree than normal solutions. For manual temperature calibration please refer to the following chart. TEMP °C °F 0 32 5 41 10 50 15 59 20 68 25 77 30 86 35 95 40 104 45 113 50 122 55 131 60 140 65 149 70 158 75 167 80 176 85 185 90 195 95 203 1.68 1.67 1.67 1.67 1.67 1.67 1.68 1.68 1.69 1.69 1.70 1.71 1.72 1.72 1.73 1.74 1.76 1.77 1.78 1.79 1.
TROUBLESHOOTING GUIDE pH ELECTRODE MAINTENANCE • Blinking full scale value: reading is out of range. • Blinking “°C” (or “°F”): MTC mode or temperature probe not connected or broken. • Meter shuts off: - check if auto-off feature is enabled; in this case meter shuts off after 20 minutes of non-use. - dead battery; replace battery. • "Er0, Er1, Er2" message: internal technical problem. Contact your dealer or the nearest Hanna Service Center.
Cleaning procedure After use, clean the electrode by immersing it in the proper cleaning solution (HI 700635 or HI 700636) for 5 minutes. If case of slow and unreliable readings, it is recommended to perform the following procedure for cleaning the junction: 1. Shift upwards the Teflon® collar. If the collar does not shift easily, immerse it into warm water. 2. Wipe gently the electrode surface with a soft and clean tissue. 3.
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.
