User manual HANNA INSTRUMENTS MV 600

[. . . ] pH 500 & mV 600 Series Panel-mounted, Microprocessor-based pH and ORP Controllers Instruction Manual Dear Customer, Thank you for choosing a HANNA product. This instruction manual refers to the following products: pH 500111- pH controller with single setpoint, ON/OFF control, analog output pH 500112- pH controller with single setpoint, ON/OFF control, RS232 output pH 500121- pH controller with single setpoint, proportional and ON/OFF controls, analog output pH 500122- pH controller with single setpoint, proportional and ON/OFF controls, RS232 output pH 500211- pH controller with dual setpoint, ON/OFF control, analog output pH 500212- pH controller with dual setpoint, ON/OFF control, RS232 output pH 500221- pH controller with dual setpoint, proportional and ON/OFF controls, analog output pH 500222- pH controller with dual setpoint, proportional and ON/OFF controls, RS232 output mV 600111- ORP controller with single setpoint, ON/OFF control, analog output mV 600112- ORP controller with single setpoint, ON/OFF control, RS232 output mV 600121- ORP controller with single setpoint, propor tional and ON/OFF controls, analog output mV 600122- ORP controller with single setpoint, propor tional and ON/OFF controls, RS232 output = 1 means 115 Vac, 50/60 Hz power supply = 2 means 230 Vac, 50/60 Hz power supply Please read this instruction manual carefully before using the instrument. It will provide you with all necessary information for a correct use of the controller. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst. com These instruments are in compliance with directives. All rights are reserved. [. . . ] · Select the 2nd buffer value on the secondary display by pressing or (e. g. pH 4. 01). · Only when the reading is stable the probe indicator " " will stop flashing (after about 30 seconds) and the "CFM" indicator will blink. · Press CFM to confirm the calibration; if the reading is close to the selected buffer, the meter stores the reading, adjusting the slope point and the secondary LCD will display the expected third buffer value. Note The electrode should be submerged approximately 4 cm (1½") in the solution. The temperature probe should be located as close as possible to the pH electrode. · Only when the reading is stable the probe indicator " " will stop flashing (after about 30 seconds) and the "CFM" indicator will start blinking. · Press CFM to confirm the calibration; if the reading is close to the selected buffer, the meter stores the reading, adjusting the 2nd slope point and the calibration process is ended with the offset and the 1st and 2nd slope of the meter calibrated. If the reading is not close to the selected buffer, "WRONG " will blink. BUF If the reading is not close to the selected buffer, "WRONG " will blink. BUF Note During calibration, the secondary LCD displays the selected buffer value. By pressing LCD the temperature can be displayed. This will allow you to check the buffer temperature during calibration. · Press CAL and the calibration process is ended with the offset and the 1st slope of the meter calibrated. 30 31 CALIBRATION WITH MANUAL TEMPERATURE COMPENSATION · Enter the calibration procedure and press LCD to display the temperature on the secondary LCD. mV INPUT CALIBRATION The pH/mV controller is factory calibrated for the mV and temperature inputs. However, the user may also perform a mV calibration. · Short the Connection for Potential Matching Pin (#9 at page7) and the Connection for the Electrode Reference (#8 at page 7) with a jumper wire. · Attach a HI 931001 (pH 500) or HI 8427 (mV 600) simulator to the BNC socket. · Press and hold first CFM and then CAL to enter the mV Input Calibration mode. · Execute the password procedure. · With pH 500, the meter will ask for the calibration procedure code number. The following table lists the possible values of the input code and calibration points: INPUT CODE 0 1 POINTS 2 2 CAL. VALUES 0 & 350 or 0 & 1900* INPUT RANGE ±2000, · Unplug any temperature probe that may be attached to the meter. The "°C" symbol will flash. · Note the temperature of the buffer solutions with a ChecktempC or an accurate thermometer with a resolution of 0. 1°C. · Use or to manually adjust the display reading to the value of the reference thermometer (e. g. 20°C). · Follow the calibration procedure above (see page 27). mV Temp. Note To toggle between the pH buffer and the temperature press LCD. When a one-point calibration is carried out only the pH offset is computed and stored, while the pH slope is fixed according to the theoretical values. With a two-point calibration, offset and slope are computed to fit the two calibration points. With a three-point calibration the offset and first slope values refers to pH 4. 01 and 7. 01 buffers, while the second slope refers to pH 7. 01 and 10. 01 buffers. 0 & 25 or 0 & 50 -9. 9 to 120. 0 °C * One of the points must be 0. [. . . ] New reference material is constantly being added to the library. For these and others catalogs, handbooks and leaflets, contact your dealer or the Hanna Customer Service Center nearest to you. To find the Hanna Office in your vicinity, check our home page at www. hannainst. com Recommendations for Users Before using these products, make sure that 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. [. . . ]