User manual HANNA INSTRUMENTS HI 98230

[. . . ] Instruction Manual HI 98230 - HI 98240 Portable Microprocessor Printing and Logging pH / ORP Meters http://www. hannainst. com These Instruments are in Compliance with the CE Directives 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. These instruments are in compliance with PRELIMINARY EXAMINATION Remove the instrument from the packing material and examine it carefully to make sure that no damage has occurred during shipping. [. . . ] When the "S" symbol blinks in the lower LCD, press ALT and CFM to confirm the second calibration point. CALIBRATION DATA PRINTOUT It is possible to print the characteristics of the electrode as a recording of the electrode performance over time by setup code 12 (see "Printing GLP data"). This will consist of: date, time, the offset characteristic of the pH electrode in mV, the slope characteristic in mV/pH and the pH buffer solution values. If calibration has been performed with an "old" pH electrode the first line is: pH ** If calibration has been performed with a "dead" pH electrode the first line is: pH -If the calibration alarm time-out is expired, the "Dt" string will be printed beside the date. Note: A dashed line indicates that the calibration has never been performed. 18 19 mV CALIBRATION PROCEDURE (HI98240 ONLY) A four-point calibration must be performed. The first two calibration points are 0. 0 and +350. 0 mV for low range calibration; the other two calibration points are 0 and +350 or +1900 mV for high range calibration. Connect a mV simulator (HI8427 or HI931001 with the proper connecting cable) to the meter and set it to 0 mV. Press ALT and CAL when LCD is displaying mV. 3. User is prompted to enter password if it has been set to a value different from 0000, otherwise skip to step 6. Press ALT and CFM to confirm the password or ALT and CAL to return to normal operational mode. If password is correct or not set, the meter will display "0. 0 mV" on the upper LCD and "b1" on the lower; if wrong, it will return to normal operational mode without any message. When the "S" symbol blinks in the lower LCD, the reading is stable and calibration can be confirmed. Press ALT and CFM to confirm the first value. 14. When the "S" symbol blinks in the lower LCD, the reading is stable. Press ALT and CFM to confirm the third value. The meter will display "350 mV" in the upper LCD and "b4" on the lower one. Pressing the " " key, 1900 mV will be selected as calibration point. Note: +1900 mV is suggested as the last calibration point to obtain the best accuracy throughout the entire mV range. When the "S" symbol blinks in the lower LCD, the reading is stable. Press ALT and CFM to confirm the fourth value. Calibration is now complete and the instrument returns to normal operational mode. Note: "Err" message notifies the user if the selected value is wrong. TEMPERATURE CALIBRATION PROCEDURE ( for technical personnel only) The meter is factory calibrated for temperature. It is recommended that the following procedure is performed by authorized technical personnel only. [. . . ] combination ORP / Pt electrode, single junction, gelfilled. · · · · · · · · · · · · · · · · · · · OTHER PRODUCTS FROM HANNA CALIBRATION AND MAINTENANCE SOLUTIONS CHEMICAL TEST KITS CHLORINE METERS CONDUCTIVITY/TDS METERS DISSOLVED OXYGEN METERS HYGROMETERS ION SPECIFIC METERS (Colorimeters) MAGNETIC STIRRERS Na/NaCl METERS pH/ORP/Na ELECTRODES PROBES (DO, µS/cm, RH, T, TDS) PUMPS REAGENTS SOFTWARE THERMOMETERS TITRATORS TRANSMITTERS TURBIDITY METERS Wide Range of Accessories HI1616D HI1617D HI1618D HI3619D HI3620D OTHER ACCESSORIES HI710005 HI710006 HI 710031 HI 710034 HI 710035 HI 740027 HI 76405 HI 8427 HI 931001 HI 9200 HI 92000 Voltage adapter from 115 VAC to 12 VDC Voltage adapter from 230 VAC to 12 VDC Rugged carrying case Plain Paper Spare Rolls (10 pcs) Spare Ink Cartridge (1 pc) 1. 5V AA batteries (4 pcs) Electrode holder pH and mV simulator pH and mV simulator with LCD display Infrared Transmitter Windows® compatible software for data transfer to PC Most Hanna meters are available in the following formats: · BENCH-TOP METERS · POCKET-SIZED METERS · PORTABLE METERS · PRINTING/LOGGING METERS · PROCESS METERS (Panel and Wall-mounted) · WATERPROOF METERS · METERS FOR FOOD INDUSTRY For additional information, contact your dealer or the nearest Hanna Customer Service Center. You can also e-mail us at tech@hannainst. com. Windows® is registered Trademark of "Microsoft Co. " 36 37 WARRANTY 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 and the probes are warranted for a period of six months. [. . . ]