46
SECTION 3,
continued
7.
The display will
show the
S2
(with the
2 flashing) and
100 NTU
or the value of the S2
standard for the previous
calibration. If the value is
incorrect, edit the value
by pressing the
→
key
until the number that
needs editing flashes.
Use the
↑
key to scroll to
the correct number. After
editing, fill a clean
sample cell to the line
with
well mixed
100 NTU StablCal
Standard or 100 NTU
formazin standard. Insert
the sample cell into the
cell compartment by
aligning the orientation
mark on the cell with the
mark on the front of the
cell compartment. Close
the lid.
8.
Press:
READ
The instrument will
count from 60 to 0
(67 to 0 if signal average
is on), measure the
turbidity and store the
value. Then, the display
will automatically
increment to the next
standard. Remove the
sample cell from the cell
compartment.
9.
The display will
show the
S3
(with the
3 flashing) and
800 NTU
or the value of the S3
standard for the previous
calibration. If the value is
incorrect, edit the value
by pressing the
→
key
until the number that
needs editing flashes.
Use the
↑
key to scroll
to the correct number.
After editing, fill a clean
sample cell to the line
with
well mixed
800 NTU StablCal
Standard or 800 NTU
formazin standard. Insert
the sample cell into the
cell compartment by
aligning the orientation
mark on the cell with the
mark on the front of the
cell compartment. Close
the lid.
NTU
CAL
READ
NTU
CAL
