User manual HANNA INSTRUMENTS HI 964400

[. . . ] Instruction Manual HI 964400 Microprocessor Bench Dissolved Oxygen Meter This Instrument is in Compliance with the CE Directives www. hannainst. com 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. This instrument is in compliance with directives EN 50081-1 and EN 50082-1. TABLE OF CONTENTS Preliminary Examination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The table on the following page reports the maximum oxygen solubility at various temperatures and altitudes. 23 Altitude, Meters above Sea Level °C 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 0m 300 m 600 m 900 m 1200 m 1500 m 1800 m °F 32. 0 35. 6 39. 2 42. 8 46. 4 50. 0 53. 6 57. 2 60. 8 64. 4 68. 0 71. 6 75. 2 78. 8 82. 4 86. 0 89. 6 93. 2 96. 8 100. 4 104. 4 14. 6 13. 8 13. 1 12. 4 11. 8 11. 3 10. 8 10. 3 9. 9 9. 5 9. 1 8. 7 8. 4 8. 1 7. 8 7. 5 7. 3 7. 1 6. 8 6. 6 6. 4 14. 1 13. 3 12. 7 12. 0 11. 4 10. 9 10. 4 9. 9 9. 7 9. 2 8. 8 8. 4 8. 1 7. 8 7. 5 7. 2 7. 1 6. 9 6. 6 6. 4 6. 2 13. 6 12. 9 12. 2 11. 6 11. 0 10. 5 10. 1 9. 6 9. 2 8. 7 8. 5 8. 1 7. 8 7. 5 7. 3 7. 0 6. 8 6. 6 6. 3 6. 2 6. 0 13. 2 12. 4 11. 9 11. 2 10. 6 10. 2 9. 7 9. 3 8. 9 8. 6 8. 2 7. 8 7. 5 7. 3 7. 0 6. 8 6. 6 6. 4 6. 1 5. 9 5. 8 12. 7 12. 0 11. 4 10. 8 10. 3 9. 8 9. 4 9. 0 8. 6 8. 3 7. 9 7. 7 7. 3 7. 0 6. 8 6. 5 6. 4 6. 2 5. 9 5. 7 5. 6 12. 3 11. 6 11. 0 10. 4 9. 9 9. 5 9. 1 8. 7 8. 3 8. 0 7. 7 7. 3 7. 1 6. 8 6. 6 6. 3 6. 1 6. 0 5. 7 5. 6 5. 4 11. 8 11. 2 10. 6 10. 1 9. 6 9. 2 8. 8 8. 3 8. 0 7. 7 7. 4 7. 1 6. 8 6. 6 6. 3 6. 1 5. 9 5. 8 5. 5 5. 4 5. 2 24 SALINITY COMPENSATION Press the NaCl key and the salinity factor will be displayed. NaCl Use the UP and DOWN keys to set the salinity between 0 and 40 g/l. Salinity affects D. O. Below is a table showing the maximum solubility of oxygen at various temperature and salinity. Salinity (g/l) at Sea Level °C 10 12 14 16 18 20 22 24 26 28 0 g/l 10 g/l 20 g/l 30 g/l 35 g/l °F 50. 0 53. 6 57. 2 60. 8 64. 4 68. 0 71. 6 75. 2 78. 8 82. 4 11. 3 10. 8 10. 3 9. 9 9. 5 9. 1 8. 7 8. 4 8. 1 7. 8 10. 6 10. 1 9. 7 9. 3 8. 9 8. 5 8. 2 7. 9 7. 6 7. 4 9. 9 9. 5 9. 1 8. 7 8. 4 8. 0 7. 8 7. 5 7. 2 7. 0 9. 3 8. 9 8. 6 8. 2 7. 9 7. 6 7. 3 7. 1 6. 8 6. 6 9. 0 8. 6 8. 3 8. 0 7. 6 7. 4 7. 1 6. 9 6. 6 6. 4 TEMPERATURE COMPENSATION The D. O. probe has a built-in sensor for temperature so that the D. O. readings are automatically compensated for temperature effects. 25 LOGGING FUNCTION This function allows to log D. O. (in ppm or %) together with the temperature automatically without the necessity of an operator and for a long period of time. All logged data can be stored into a PC through the RS232C port. The lot number goes from 1 to 99 and then back to #1. The maximum capacity per lot is 8000 samples. Set the appropriate logging interval (see page 12). Select between 1, 15, 30 seconds or 1, 5, 30, 60, 120, 180 minutes. Press the RANGE key first (to select D. O. read- RANGE ings in ppm or in %), then press the LOG and then CAL key to enter the logging mode. LOG CAL Press the RANGE key to display the measurement reading during the logging mode. RANGE 26 Once in the logging mode, the interval cannot be changed. Exit the logging mode first (by pressing the LOG and then CAL key) before setting a new interval. LOG CAL During logging, you can check some information about the logged data. Press the LOG key and the primary LCD will show the current lot number and the secondary LCD will display the current page number. LOG Press the LOG key again to display the current sample number (the number of readings that have been stored in the current lot). LOG 27 TO STOP LOGGING To stop logging press the LOG and then CAL key. LOG CAL The display will show the next lot number. LOG L 2 OFF Note: if the OFF key is pressed while logging, the meter will stop the logging first and then will turn off. MEMORY ORGANIZATION The memory used for storing the logged data is divided into 16 pages. The capacity of each page is 500 samples. It starts to log from page 16 downwards until 1 and then 16 again, overwriting the previous data. However, when this happens the LCD will show page "0", indicating the overwriting has occurred. Each time a new logging period starts, it automatically starts from a new page. 28 When the samples collected for a single lot are more than the limit (8000 samples) the meter will stop logging automatically. TO CLEAR LOGGED DATA The entire logged data can be cleared by pressing the ON and the LOG keys simultaneously. ON + LOG The choice has to be confirmed by pressing the CFM key. CFM The next logging will start from page 16. 29 INTERFACE WITH PC Data transmission from the instrument to the PC is now much easier with the new HI 92000 Windows® compatible application software offered by Hanna Instruments. User friendly, HI 92000 offers a variety of features and has an on line help feature to support you throughout all situations. HI 92000 allows you to use the powerful means of the most diffused spread sheet programs (e. g. Simply run your favorite spread sheet and open the file downloaded by HI 92000. It is then possible to make any elaboration available with your software (e. g. To install HI 92000 you need a 3. 5" drive and few minutes to follow the instructions conveniently printed on the disk's label. [. . . ] "96" for year 1996 20) etx end The meter will send "Err6" if in a different measurement range. 15) Commands setting parameters: /ML To select the data lot for data transfer. send "/ML05" to select lot no. is valid, the meter will send <ACK>, otherwise it will send <CAN>. send "/BR0" to set the meter to baud rate of 150 send "/BR1" to set the meter to baud rate of 300 send "/BR2" to set the meter to baud rate of 600 send "/BR3" to set the meter to baud rate of 1200 send "/BR4" to set the meter to baud rate of 2400 send "/BR5" to set the meter to baud rate of 4800 send "/BR6" to set the meter to baud rate of 9600 41 /PF To set the RS232C command prefix. [. . . ]