User manual HANNA INSTRUMENTS EC 700

[. . . ] EC 700 TDS 705 EC 710 Process, Panel-mounted, Microprocessor-based, Conductivity and TDS Controllers Instruction Manual Dear Customer, Thank you for choosing a Hanna Product. This instruction manual has been written for the following products: EC 700 EC controller with dual setpoint, ON/OFF and PID control, analog output TDS 705 TDS controller with dual setpoint, ON/OFF and PID control, analog output EC 710 EC and TDS controller with dual setpoint, ON/OFF and PID control, analog output Please read this instruction manual carefully before using the instrument. It will provide you with the necessary information for the correct use of the instrument, as well as a precise idea of its versatility. These instruments are in compliance with EN 50081-1, EN 50082-1 and EN 61010-1. [. . . ] To change the default values, the setup mode must be entered. Setup codes for changing the analog output minimum and maximum are 41 or 42, respectively. For the exact procedure, refer to the setup mode section in the manual. The user should select the appropriate range to calibrate (setup code 03). Calibration must be performed for each range used. The temperature probe should also be connected to the process meter. The meters are equipped with a stability indicator. The user is also guided with indications on the display during the calibration procedure. Initial Preparation Pour a small quantity of the calibration solution (e. g. If possible, use a plastic beaker to minimize any EMC interference. For accurate calibration use two beakers containing the same solution, the first one for rinsing the probe, the second one for calibration. By doing this, contamination between the solutions is minimized. To obtain accurate readings, use the calibration solution in the selected range and closer to the values to be measured. Offset Calibration · To perform the EC or TDS calibration enter the calibration mode, by pressing CAL and entering the password. · After the correct password is entered, the control actions stop and the primary LCD will display the first EC or TDS calibration value, with the "CAL" indicator blinking. The secondary LCD displays the temperature. Note The analog output is factory calibrated through software. The user may also perform the calibration procedure as explained in the following. It is recommended to perform the output calibration at least once a year. The analog output is "frozen" when entering the setup or calibration mode (after password confirmation). Note Note CALIBRATION The controller is factory calibrated for temperature as well as for the analog input and outputs. The user should periodically calibrate the instrument for EC or TDS. For greatest accuracy, it is recommended that the instrument is calibrated frequently. Before beginning normal operation, it is recommended to standardize the probe with the Hanna calibration solution close to the expected sample value and inside the selected range. EC AND TDS CALIBRATION The calibration points for EC and TDS are as follows: Range 0. 0÷199. 9 µS 0÷1999 µS 0. 00÷19. 99 mS 0. 0÷199. 9 mS 0. 0÷100. 0 ppm 0÷1000 ppm 0. 00÷10. 00 ppt 0. 0÷100. 0 ppt Calibration point(s) 84. 0 µS 1413 µS 5. 00 - 12. 88 mS 80. 0 - 111. 8 mS 42. 0 ppm 800 ppm 6. 44 ppt 55. 9 ppt Note If the wrong password is entered the system reverts back to normal operation, displaying EC or TDS values. [. . . ] If a more thorough cleaning is desired, remove the sleeve and clean the platinum sensors with a non-abrasive cloth or HI7061 cleaning solution. Reinsert the sleeve in the same direction as before. Recalibrate the instrument before reinserting the probe in the system. Note Always recalibrate the instrument when attaching a new probe. 16 60. 8 17 62. 6 18 64. 4 19 66. 2 20 68 21 69. 8 22 71. 6 23 73. 4 24 75. 2 25 77 26 78. 8 27 80. 6 28 82. 4 29 84. 2 30 86 31 87. 8 42 43 ACCESSORIES CONDUCTIVITY & TDS BUFFER SOLUTIONS HI 7030L 12880 µS/cm (µmho/cm), 460mL HI 7030M 12880 µS/cm (µmho/cm), 230mL HI 7031L 1413 µS/cm (µmho/cm), 460mL HI 7031M 1413 µS/cm (µmho/cm), 230mL HI 7033L 84 µS/cm (µmho/cm), 460 mL HI 7033M 84 µS/cm (µmho/cm), 230 mL HI 7034L 80000 µS/cm (µmho/cm), 460mL HI 7034M 80000 µS/cm (µmho/cm), 230mL HI 7035L 111800 µS/cm (µmho/cm), 460mL HI 7035M 111800 µS/cm (µmho/cm), 230mL HI 7039L 5000 µS/cm (µmho/cm), 460mL HI 7039M 5000 µS/cm (µmho/cm), 230mL HI 7032L 1382 ppm (mg/L), 460 mL HI 7032M 1382 ppm (mg/L), , 230 mL HI 7036L 12. 41 ppt (g/L), 460 mL HI 7036M 12. 41 ppt (g/L), 230 mL HI 70038P 6. 44 ppt (g/L), 25 mL sachets, 25 pcs. [. . . ]