Instruction Manual HI 98140 • HI 98150 Portable Waterproof pH / ORP Meters with Smart Electrodes & Log-On-Demand 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 all the necessary information for the 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 These instruments are in compliance with the directives.
FUNCTIONAL DESCRIPTION These instruments also feature a controlled access to calibration and GLP settings through a password protection method. The Battery Error Preventing System (BEPS) detects when the batteries become too weak to ensure reliable measurements. The backlight feature is automatically disabled when the batteries are getting low and a clear indication is displayed to warn the user of this condition.
SPECIFICATIONS Range -4.00 to 19.99 pH / -20 to 120.0°C HI 98150 only: ±600.0 mV; ±2000 mV Resolution 0.01 pH 0.1°C (-10 to 120°C) / 1°C (below -10°C) HI 98150 only: 0.1 mV (±400 mV) / 0.2 mV (±400 to ±600 mV) / 1 mV (outside) Accuracy (@20°C/68°F) ±0.01 pH ±0.4 °C from 0 to 70°C / ±1°C outside HI 98150 only: ±0.2 mV (±400 mV) / ±0.4 mV (±400 to ±600 mV) / ±2 mV (outside) Typical EMC Deviation ±0.02 pH / ±0.
SETUP MODE Setup can be used to view data regarding instrument status (e.g. battery charge) or to change the meter parameters (e.g. time). • To enter this mode press the ALT and FNC keys when the meter is in measurement mode. • The setup code "00" will blink on the lower LCD and "Set" will be displayed on the upper one. • Select the code of the desired parameter using the or key.
1 2 The meter automatically checks for entered time/date accuracy as follows: 0≤hh≤23; 0≤mm≤59; 01≤dd≤28/29/30/31; 1≤MM≤12; 1998≤YYYY≤2097. To change the password, the correct code must be entered first. If the password has been forgotten, the password protected features are no longer accessible; in this case contact your nearest Hanna Service Center. Some of the setup parameters are explained below.
TAKING ORP MEASUREMENTS (HI98150 ONLY) Connect the ORP electrode to the meter and press the ON/OFF key. The meter automatically sets the mV range. If the ORP electrode is not connected the LCD will display the "no probe" message and then dashed lines in place of the readings. To take ORP measurements, simply submerge the bottom 4 cm (1½") of the ORP electrode in the solution to be tested, stir gently and allow for the reading to stabilize.
Note: The buffer pH value, and thus the value displayed on the lower LCD, varies with temperature. For example, at 20 oC it shows 4.00 -7.03 -10.06, at 25oC it shows 4.01-7.01-10.01. 6. Select the first buffer solution value with and if necessary. 7. When the "CFM" symbol blinks, the reading is stable and calibration can be confirmed. 8. Press ALT and CFM to confirm the first buffer. 15. The LCD will display "Stor".
10. Set the simulator to +350 mV. 11. When the "CFM" symbol blinks, the reading is stable. Press ALT and CFM to confirm the second value. 12. The LCD will display "Stor" for a few seconds. 13. If only a two-point calibration is required, press CAL to leave the calibration mode. Proceed with the next step for three-point calibration. 14. The meter will display "1900 mV" on the lower LCD with the "BUF 3" indication. 15. Set the simulator to 1900 mV. 16. When the "CFM" symbol blinks, the reading is stable.
Note: Press ALT and DEL. to escape without data deletion. When viewing through the logged data, the "NUL" message will be displayed when selecting a deleted sample. - year - time - pH reading "----" means reading out of range or no probe was connected. "OrP" means that an ORP electrode was connected. To delete all data in memory: • Press ALT and DEL while in normal operational mode. The "del All" message will scroll on the LCD and the "CFM" indication will start blinking asking for confirmation.
GOOD LABORATORY PRACTICE (GLP) GLP is a set of functions that allows the storage or retrieval (when necessary) of data regarding the maintenance and status of the electrode. HI98140 and HI98150 use electrodes with a built-in EEPROM in which calibration data are read at start-up and stored after calibration. The meter can automatically analyze the data and advise the user if a problem is found with a clear message.
SENDING COMMANDS FROM PC With any terminal programs it is possible to remotely control your pH meter. Connect the meter to the PC through the HI920011 cable, start the terminal program and set the communication options as follows: 8, N, 1, no flow control. To send a command to the pH meter the scheme is: The computer sends the command expressed as a 3-character sequence and a CR character.
BATTERY REPLACEMENT When the batteries are inserted and no power adapter is connected, the meter can recognize different batteries charge levels. 1. Fully charged batteries - The backlight can be enabled. 2. Weakening batteries - The backlight is automatically disabled and it is not possible to enable it until new batteries are inserted or an external power adapter is connected. The "Batt" indication appears when trying to enable backlight. 3.
ELECTRODE CONDITIONING AND MAINTENANCE Note: To prevent damage to the pH electrode, remove it from the sample before turning the meter off. With the meter OFF, detach the electrode from the meter and immerse it in the storage solution. PREPARATION Remove the protective cap. DO NOT BE ALARMED IF SALT DEPOSITS ARE PRESENT. This is normal with electrodes and they will disappear when rinsed with water. During transport tiny bubbles of air may form inside the glass bulb.
• Dry Membrane/Junction: soak in HI 70300 storage solution for at least 1 hour • Drifting: soak the electrode tip in warm HI 7082 solution for one hour, then flush tip with distilled water.
WARRANTY CE DECLARATION OF CONFORMITY All Hanna Instruments meters are warranted for two years against defects in workmanship and materials when used for their intended purpose and maintained according to instructions. The electrodes are warranted for a period of six months. This warranty is limited to repair or replacement free of charge. Damages due to accident, misuse, tampering or lack of prescribed maintenance are not covered.
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.
