Hach POCKET COLORIMETER II Instruction Manual page 35

7.
For free chlorine, place the
prepared sample cell in the cell
holder and cover with the
instrument cap within one
minute after adding the DPD
Free Pillow.
Proceed immediately to
step 9.
The SwifTest™ Dispenser
Note:
can be used in place of the
powder pillow (see page
Chlorine, Free and Total, HR,
8.
For total chlorine, place the
prepared sample in the cell
holder and cover with the
instrument cap. Wait three to
six minutes after adding the
DPD Total Pillows. Proceed to
step 9.
Wipe off sample cells.
Note:
1—36).
1—35
continued
9.
Press
READ/ENTER
The instrument will
show "- - - -" followed by
the results in mg/L chlorine
(Cl ).
2
.