Hach AutoCAT 9000 - Page 133

Chlorite
Chlorite
50081_Chlorite.fm Page 131
1. Raise the electrode
head.
Add 2.0 mL of
2.5 N Hydrochloric acid and
stir for several seconds.
Press the
CHECK MARK
to confirm.
2. Carefully remove the
sample from the stirrer
platform and place in the
dark.
The timer will start to allow a
5-minute reaction period
before starting the titration.
3. Remove the sample
from the dark and carefully
place onto the AutoCAT
stirrer platform.
Lower the electrode head
onto the beaker rim.
Press the
CHECK MARK
to confirm.
4. The analysis parameters
that have been stored for the
current Sub-ID may be
edited at this time.
Highlight the appropriate
line and press the
CHECK MARK to change one
of the analysis parameters or
press 1 to confirm.
Note: Any changes made will
become the new default
parameters for this method
Sub-ID.
Note: These Sub-ID
parameters can be edited here
as 'run-time' settings, or from
the Main Menu as described in
Section 3.5.
AutoCAT Titration Method Chlorite Titration 2