16
When using an appropriate Hanna Instruments P Type BNC electrode with
pin,
HI2221
and
HI2223
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 performance
and should be expected to slowly decrease over the life of the electrode.
The condition gauge shows the electrode’s condition at the time of
calibration.
For a continuous display of electrode condition and response, daily cali‑
bration is necessary. This information can also be viewed in the GLP data.
If the instrument is not calibrated, the calibration history was deleted,
or it has been calibrated only at one point, the electrode condition and
the electrode response gauges will be empty.
When the instrument cannot evaluate the electrode response, the response
gauge will be empty (pH1.68 or pH12.45 were used).
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 AND
ELECTRODE RESPONSE TIME