User manual HANNA INSTRUMENTS HI 98804

[. . . ] Instruction Manual HI 98701 · HI 98801 HI 98704 · HI 98804 Printing and Logging K-J-T Thermocouple Thermometers 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. If you need additional technical information, do not hesitate to e-mail us at tech@hannainst. com. [. . . ] 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. 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. 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 second calibration point "1000°C" will be displayed on the upper LCD and "C 0" on its lower part. 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. Note: When connecting a mV simulator to the meter use two wires of the same material of the simulator terminals to avoid undesired thermocouple junctions that could alter the mV input of the meter. Note: Avoid touching the meter connectors if possible and wait about 15 minutes for temperature stabilization after connections before proceeding with the calibration steps. 16 HI 98801 - HI 98804 PRINTING / LOGGING FUNCTIONS Two different modes to print / log data are available: 1. Timed logging; samples are stored and printed (if print function is active) at fixed time intervals. Log on demand; samples are stored and printed (if print function is active) when the LOG key is pressed. It's possible to perform the Log on demand either in normal mode or in Timed logging mode. It is possible to switch from logging without printing to logging with printing in two ways: · set the function code 02 to "On" to enable printing, to "Off" to disable printing · press ALT and PAPER to toggle between printer enabled and printer disabled while in Timed logging. Note: In timed logging mode, channels with no probe connected are not logged nor printed. If all the channels are disconnected, the message "no connected probe" will scroll across the LCD. Note: cold junction temperature is not logged nor printed. TIMED LOGGING MODE To start Timed logging, press ALT and LOG. The lot number will be displayed for a few seconds then the LOG symbol will appear on LCD and if printer is enabled a first set of data will be printed. [. . . ] 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. Note It is not possible to activate backlight and printer when the instrument is in a low battery condition. If the user attempts to enable these functions without replacing the batteries or connecting the external power adapter, the meter will show "batt" on LCD. [. . . ]