Hach TL2360 Basic User Manual page 18

• Always use clean sample cells in good condition. Dirty, scratched or damaged cells can result in
readings that are not accurate.
• Make sure that cold samples do not "fog" the sample cell.
• Store sample cells filled with distilled or deionized water and cap tightly.
• For the best accuracy, use a single sample cell for every measurement or a flow cell.
Note: As an alternative, matched sample cells may be used for measurements but do not provide as good of
accuracy or precision as a single indexed sample cell or flow cell. When using matched sample cells, align the
orientation mark on the sample cell with the reference mark on the sample cell holder.
Measurement
• Measure samples immediately to prevent temperature changes and settling. Before a
measurement is taken, always make sure that the sample is homogeneous throughout.
• Avoid sample dilution when possible.
• Avoid instrument operation in direct sunlight.
6.3.2 Turbidity measurement procedure
To include an operator ID and sample ID with the measurement data, refer to
on page 13 and Add operator IDs
1. Push Login and
select the applicable
Operator ID. If login
is not necessary, go
to step 3.
18 English
on page 12.
2. Push Login and
enter the password.
Push OK.
3. Push Sample ID.
Select the applicable
sample ID, then
push Select. The
selected sample ID
shows on the
display.
Add sample IDs
4. Rinse a clean,
empty sample cell
two times with the
solution to be
measured and drain
to waste. Fill to the
line (about 30 mL)
with sample and
immediately put the
cap on the sample
cell.