Hach AutoCAT 9000, Instruction Manual

Page: 70 / 176

Chlorine Dioxide Generator Yield
Chlorine Dioxide Generator Yield
Page 68
50081_ChlorineDioxideGeneratorYield.fm
1.
Turn the instrument on
and access the
Methods menu.
Press
2
to choose
Select Method.
2.
Highlight
ClO
2
Gen. Yield
Press the
CHECK MARK
to validate.
3.
Press
1
to select
Run method.
This method uses the 0.10 N
Sodium Thiosulfate titrant.
See
Software Setup for
Titrant Installation on
page 38 .
4.
Measure 1–5 mL of
generator effluent sample
with a pipet and transfer to a
250-mL beaker containing
the magnetic bar.
Note: All containers must be
pretreated for chlorine demand,
see Container Pretreatment on
page 63.
5.
Dilute the sample to
approximately 200-mL with
Organic Free water.
6.
Place the sample onto
the AutoCAT 9000 stirrer
platform.
7.
Verify User.
Press the
CHECK MARK
to
enter a new user or press
1
to
confirm.
Note: This screen will be
skipped if the User ID is
disabled. See Setting a User ID
on page 27.
8.
Highlight Sample ID.
Press the
CHECK MARK
to
enter a new sample ID or
proceed to
step 9 .
AutoCAT Titration Method ClO
2
Yield Titration 1