User manual HANNA INSTRUMENTS HI 4222

[. . . ] Instruction Manual HI 4221 & HI 4222 pH/mV/ISE/Temperature Bench Meters w w w. c o m 1 Dear Customer, Thank you for choosing a Hanna Instruments product. This manual will provide you with the necessary information for correct use of the instrument. Please read this instruction manual carefully before using the instrument. [. . . ] After 10 seconds, will no longer be available. can be cleared by pressing Note: It is very important to clear calibration history when a new electrode is used because most errors and warning messages that appear during calibration depend on calibration history. · Immerse the pH electrode and the temperature probe approximately 4 cm (1½") into a buffer solution of your choice (pH 1. 68, 3. 00, 4. 01, 6. 86, 7. 01, 9. 18, 10. 01, 12. 45 or a custom buffer) and stir gently. The temperature probe should be close to the pH electrode. The "Please · Select the used pH calibration buffer with wait. . . " message will appear on the LCD until the reading is stable or the buffer is validated. The · If the pH buffer is validated, calibration buffer will be added to the Calibrated Buffers section. · Immerse the pH electrode and the temperature probe into the next buffer solution and follow the above to exit calibration. procedure or press Notes: · The new added calibration point will replace an old one if the difference between them is ±0. 2 pH. · If the existing stored calibration is full (five calibration points), a pop-up menu will be displayed on the LCD in which you can select with or keys the buffer you want to replace with the current to delete the selected buffer buffer. Press to update calibration with and then press the new buffer. after entering · When in MTC mode, if pressing pH calibration and while a HANNA pH calibration buffer with a x. xxx resolution is selected, a pop-up menu will be displayed on the LCD in which the temperature value or . Press can be ajusted using to save the new temperature value. 40 · When in MTC mode, if pressing after entering calibration and while a custom pH calibration buffer is selected, a pop-up menu will be displayed on the LCD in which the custom buffer and the temperature value and then can be ajusted by pressing or keys. Press to save the modified / to select next/ value and then previous value to be adjusted. after entering · When in ATC mode, if pressing calibration and while a standard pH buffer (with a x. xxx resolution) or a custom pH buffer is selected, a pop-up menu will be displayed on the LCD in which or the buffer value can be ajusted using . · If the Automatic buffer entry type has been selected for the calibration procedure, the instrument will automatically select the closest buffer to the measured pH value from the edit buffer group (see pH Setup for details, page 20). · If the Semiautomatic buffer entry type has been selected for the calibration procedure, the instrument will automatically select the closest buffers to the measured pH value from all the available buffers and the used buffer value can be selected with or . CALIBRATION MESSAGES · Wrong buffer. Please check the buffer: this message appears when the difference between the pH reading and the value of the selected calibration buffer is significant. If this message is displayed, check if you have selected the appropriate calibration buffer. · Wrong buffer temperature: this message appears if the buffer temperature is out of the defined buffer temperature range. · Clean the electrode or check the buffer. Press <Accept> to update calibration: this message alerts the user that some dirt or deposits could be on the electrode. [. . . ] Use: general purpose. Consult the Hanna General Catalog for more electrodes with screw-type or BNC connectors. PEI® is registered Trademark of "General Electric Co. " PVDF® is registered Trademark of "Pennwalt Corp. " 73 EXTENSION (SCREW TO HI 7855/1 HI 7855/3 CABLE FOR SCREW-TYPE ELECTRODES BNC ADAPTER) Extension cable 1 m (3. 3') long Extension cable 3 m (9. 9') long HI 7855 SERIES CABLE CONNECTORS CONNECTOR AND 3. 0 mm (0. 12") CABLE WITH BNC CONNECT TO SCREW TYPE ELECTRODES CONNECT TO THE BNC SOCKET OF THE METER OTHER ACCESSORIES HI HI HI HI 710005/8 710006/8 76404N 8427 Voltage adapter from 115 Vac / 12 Vdc 800 mA (USA plug) Voltage adapter from 230 Vac / 12 Vdc 800 mA (European plug) Electrode holder pH and ORP electrode simulator with 1 m (3. 3') coaxial cable ending in female BNC connectors pH and ORP electrode simulator with LCD and 1 m (3. 3') coaxial cable ending in female BNC connectors Temperature probe with 1 m (3. 3') cable Windows® compatible software 9 to 9-pin RS232 cable HI 931001 HI 7662-T HI 92000 HI 920010 74 RECOMMENDATIONS FOR USERS Before using these products, make sure they are entirely suitable for the environment in which they are used. Operation of these instruments in residential areas could cause unacceptable interferences to radio and TV equipment, requiring the operator to follow all necessary steps to correct interferences. The glass bulb at the end of the pH electrode is sensitive to electrostatic discharges. Avoid touching this glass bulb at all times. [. . . ]