Hach POCKET COLORIMETER II Instruction Manual page 20

Chlorine, Free and Total, LR,
Using AccuVac
1.
Fill a 10-mL sample cell
with sample (the blank).
Cap. Collect at least 40 mL
of sample in a 50-mL
beaker.
Empty AccuVac
Note:
Ampuls are available for
use as blanks. See
OPTIONAL REAGENTS on
page 1—47.
®
Ampuls (USEPA accepted for reporting)
2.
Press the
turn on the meter.
The arrow in the display
should indicate the low
range channel (LR).
See page 2—4
information on selecting the
correct range channel.
continued
key to
POWER
for
1—20
3.
Remove the instrument
cap. Place the blank in the
cell holder, with the diamond
mark facing the keypad.
Cover the cell with the
instrument cap.
Wipe liquid and
Note:
finger prints off sample
cells.