Hanna Instruments HI 84185 - Manual (Page 11)

11
Setup screens
Stability criteria
Options: Accurate, Medium, Fast.
Press the corresponding functional key to select the desired option.
Select Accurate for accurate measurements; long duration.
Select Medium for normal measurements.
Select Fast only for quick estimations; low accuracy in short time.
While in the Setup menu it is possible to modify the instrument’s parameters. By pressing the
/ keys it is possible to move between the Setup options. Each menu item displays the
current option. Press HELP to view the contextual help.
Temperature compensation
Options: Enable, Disable
Enable this feature only if HI 7662-T temperature probe is
connected and electrode isopotential point is known.
If enabled, the meter will take into account the temperature
of the readings when evaluating the final result.
If disabled, the computed concentration will not be temperature
compensated.
Press the functional key to select the desired option.
Result screen
The ion concentration is displayed in mg/L (ppm) N-NH
3
. If the
concentration is out of range, the instrument displays the upper
range limit blinking.
Press LOG to save the measured concentration. A message
indicating the free log space will be displayed for a few seconds.
If the free log space is under 10% this message will be
permanently displayed.
Press Start to begin a new measurement cycle.
Wrong slope screen
This screen appears if the computed slope is not in the
acceptable range. The acceptable range is 30% to 140%
default slope (-56mV/decade).
Press Start to begin a new measurement cycle.