User manual HANNA INSTRUMENTS HI 2213 09-10

[. . . ] Instruction Manual HI 2212 HI 2213 pH/mV/°C Bench Meters with Custom Buffers w w w. c o m 1 Dear Customer, Thank you for choosing a Hanna Instruments product. Please read this instruction manual carefully before using these instruments. This manual will provide you with the necessary information for correct use of these instruments, as well as a precise idea of their versatility. [. . . ] 12 p H BUFFER TEMPERATURE DEPENDENCE The temperature has an effect on pH. The calibration buffer solutions are affected by temperature changes to a lesser degree than normal solutions. During calibration the instrument will automatically calibrate to the pH value corresponding to the measured or set temperature. TEMP ºC 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 ºF 32 41 50 59 68 77 86 95 104 113 122 131 140 149 158 167 176 185 194 203 4. 01 4. 01 4. 00 4. 00 4. 00 4. 00 4. 01 4. 02 4. 03 4. 04 4. 05 4. 06 4. 07 4. 09 4. 11 4. 12 4. 14 4. 16 4. 17 4. 19 4. 20 pH BUFFERS 6. 86 6. 98 6. 95 6. 92 6. 90 6. 88 6. 86 6. 85 6. 84 6. 84 6. 83 6. 83 6. 84 6. 84 6. 85 6. 85 6. 86 6. 86 6. 87 6. 88 6. 89 7. 01 7. 13 7. 10 7. 07 7. 04 7. 03 7. 01 7. 00 6. 99 6. 98 6. 98 6. 98 6. 98 6. 98 6. 99 6. 99 7. 00 7. 01 7. 02 7. 03 7. 04 9. 18 9. 46 9. 39 9. 33 9. 27 9. 22 9. 18 9. 14 9. 10 9. 07 9. 04 9. 01 8. 99 8. 97 8. 95 8. 93 8. 91 8. 89 8. 87 8. 85 8. 83 10. 01 10. 32 10. 24 10. 18 10. 12 10. 06 10. 01 9. 96 9. 92 9. 88 9. 85 9. 82 9. 79 9. 77 9. 76 9. 75 9. 74 9. 73 9. 74 9. 75 9. 76 During calibration the instrument will display the pH buffer value at 25 ºC. 13 GOOD LABORATORY PRACTICE (GLP) GLP is a set of functions that allows storage and retrieval of data regarding the maintenance and status of the electrode. All data regarding the last calibration (one, two, or three point) is stored for the user to review when necessary. This data includes the following: calibration time stamp, offset (mV), average of slope (%), calibration buffers and the time until a new calibration is required. EXPIRED CALIBRATION These instruments allow the user to set the number of days before the next required calibration. If the time elapsed, the "CAL" "INTV" tags will blink as a reminder. Note: If the instruments were not calibrated, the "CAL" "INTV" tags will be displayed even if the feature is disabled in SETUP menu. pH CALIBRATION DATA Calibration data is stored automatically after a successful calibration. The instruments will display the time (hh:mm) of the last calibration. Use the ARROW keys to scroll through the calibration data: · The date (yyyy. mm. dd). · The pH calibration offset. · The pH calibration slope (the GLP slope is the average of the calibration slopes; the percentage is referred to the ideal value of 59. 16 mV/pH). 14 · The pH calibration buffers in calibrating order. The first pH calibration buffer: The second pH calibration buffer: The third pH calibration buffer: Notes:· The "OLd" message displayed beside the pH value means that this buffer was not used during last calibration. Press and hold down SETUP if you want to see calibration date (or time, if old calibration was performed on the same day as the current calibration). · For each custom buffer used in calibration, the "BUFFER pH" tag will blink. · If "no bUF" message appears on the LCD, the instrument informs you that the calibration was performed with less than three buffers. · Calibration Expiration status: - if disabled 15 - or the number of days until the calibration alarm will be displayed - or if expired (7 days ago) Notes: · Press GLP to return to measurement mode. · If calibration has not been performed, the instrument displays "no CAL". 16 SETUP Setup mode allows viewing and modifying the following parameters: · Expired Calibration Alarm · First Custom Buffer · Second Custom Buffer · One-point Calibration Behavior · Current Time (hour & minute) · Current Date (year, month & day) · Beep Status · Temperature Unit To enter SETUP mode press SETUP while the instrument is in measurement mode. EXPIRED CALIBRATION ALARM Press CAL when the calibration time-out is displayed. Calibration time-out ("OFF" or "1" to "7" days) and "CFM" will start blinking. Press the ARROW keys to change the calibration time-out value. The custom buffer (disabled ­ "no" or "0" to "16" pH) and "CFM" will start blinking. Press the ARROW keys to change the custom buffer value. 17 SECOND CUSTOM BUFFER Press CAL when "cb2" is displayed. The custom buffer (disabled ­ "no" or "0" to "16" pH) and "CFM" will start blinking. Press the ARROW keys to change the custom buffer value. ONE-POINT CALIBRATION BEHAVIOR Press CAL when "1 Pnt" message is displayed on the secondary LCD. [. . . ] Use: biotechnology, micro titration. HI 1131B Glass-body, single junction, refillable, combination pH electrode. Use: general purpose. 30 HI 1330B Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: laboratory, vials. HI 1331B Glass-body, semimicro, single junction, refillable, combination pH electrode. Use: flasks. HI 1230B Plastic-body (PES), double junction, gel-filled, combination pH electrode. [. . . ]