Hanna Instruments HI 84500 - Manual (Page 23)

23
• At the end of the titration the instrument displays the concentration in ppm of SO
2
. The titration
curve can be viewed by pressing Plot ON. Press Plot OFF to exit this mode.
• Press LOG to record the concentration value and the titration curve into the instrument’s
memory. A message will be displayed for a few seconds indicating the amount of free log
space. Up to 200 log samples can be recorded in the instrument’s memory.
• Press Restart to begin a new titration or ESC to return to the titration menu.
• If the concentration exceeds the range limits (>40.0 ppm for Low Range, >400 ppm for
High Range), the exceeded range limit will be displayed blinking. Another titration can be
started by pressing
Restart.
• “Wrong input” error message appears when the input reading (mV) exceeds the specified
limits. The mV value and the concentration will blink indicating an error.
• This screen appears when the stirrer is not working properly. Check the stir bar and beaker
content. Press Restart to try again.