User manual HANNA INSTRUMENTS HI 98701

[. . . ] Instruction Manual HI 98701 - HI 98801 HI 98704 - HI 98804 Portable Microprocessor Printing and Logging K-J-T Thermocouple Thermometers 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. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst. com. [. . . ] User is prompted to enter password if it has been set to a value different from 0000, otherwise skip to step 6. Enter the password using the arrow keys. Press ALT and CFM to confirm the password or CH/TIME or TEMP/ TIME to exit. If password is correct or not set, the meter will display "25. 0°C" (or "77. 0°F"), with the "2" (or "7") blinking, on the upper LCD and "C CJ" on its lower part; if wrong, it will return to measurement mode without any message. Enter the actual cold junction temperature (the environment temperature measured with a reference thermometer) using the arrow keys (temperature must be between 0 and 50 °C). When the "S" symbol blinks in the lower LCD, the reading is stable and calibration can be confirmed pressing ALT and CFM. The LCD will display CALC for a few seconds and then the meter returns to normal operational mode. 15 THERMOCOUPLE CALIBRATION 1. With a mV simulator, input 0. 000 mV at channel #1 of the meter. Ensure the meter is not displaying the cold junction temperature and press ALT, CFM and PAPER simultaneously while the meter is not printing nor logging to enter calibration mode. User is prompted to enter password if it has been set to a value different from 0000, otherwise skip to step 6. Enter the password using the arrow keys. Press ALT and CFM to confirm or CH/TIME or TEMP/TIME to exit. If password is correct or not set, the meter will display "0°C" on the upper LCD and "C 0" on its lower part; if wrong, it will return to measurement mode without any message. When the "S" symbol blinks in the lower LCD, the reading is stable and calibration can be confirmed pressing ALT and CFM. The LCD will display CALC for a few seconds. The second calibration point "1000°C" will be displayed on the upper LCD and "C 0" on its lower part. Input 41. 269 mV at channel #1 of the meter. When the "S" symbol blinks in the lower LCD, the reading is stable and calibration can be confirmed pressing ALT and CFM. "CALC" is displayed on the upper LCD for a few seconds and then the meter returns to normal operational mode. Note: Even though only channel #1 is used during calibration, all the channels and all the thermocouple types are calibrated. Note: If a wrong input is connected or channel #1 is left open, when confirming the calibration point the LCD will display "Err". Note: To escape before ending the calibration procedure press CH/TIME or TEMP/TIME. [. . . ] Backlight and printer are disabled and meter can work for about 20 hours. If in Timed logging mode with the power down function enabled this time can be longer. The instrument stops working to avoid erroneous readings. Note It is not possible to activate backlight and printer when the instrument is in a low battery condition. [. . . ]