Hanna Instruments HI 2222 - Manual (Page 15)

15
When using an appropriate HANNA P Type BNC electrode with pin,
HI 2222 will assess electrode condition and response time during each
calibration, the calibration status is displayed for the rest of the day.
The response gauge is a function of the stabilization time between the
first and second calibration buffers. These gauges reflect electrode perfor-
mance and should be expected to slowly decrease over the life of the
electrode.
The condition gauge show the electrode’s condition at the time of
calibration only.
For a continuous display of electrode condition and response daily
calibration is necessary. This information can also be viewed in the GLP
data.
If the instrument is not calibrated, the calibration history was deleted it
has been calibrated only at one point, the two-point calibration was not
performed using pH 7.01 and pH 3.00 buffers, the electrode condition
and the electrode response gauges will be empty.
When the instrument cannot evaluate the electrode response, the electrode
response gauge will be empty.
If the electrode is in a very poor condition the first condition segment will
blink.
If electrode response is very slow the first response segment will blink.
ELECTRODE CONDITION & ELECTRODE CONDITION & ELECTRODE CONDITION & ELECTRODE CONDITION & ELECTRODE CONDITION &
ELECTRODE RESPONSE TIME ELECTRODE RESPONSE TIME ELECTRODE RESPONSE TIME ELECTRODE RESPONSE TIME ELECTRODE RESPONSE TIME
SLOW FAST POOR GOOD
SLOW FAST POOR GOOD