Hach Lange 2100AN, Instrument Manual

Page: 17 / 108

SECTION 2,
continued
17
2.2.2 Measurement Hints
•
Always cap the sample cell to prevent spillage of sample into the instrument.
•
Always close the sample compartment lid during measurement.
•
Install the appropriate Filter Assembly. The EPA Filter Assembly must be
installed for measurements requiring EPA reporting.
•
Do not leave a sample cell in the cell compartment for extended periods
of time.
•
Leave the instrument on 24 hours a day if the instrument is used regularly.
•
Empty the cell compartment and turn off the power if the instrument is stored
for extended periods of time.
•
Always use clean, scratch-free sample cells and caps.
•
Always apply silicone oil.
•
Always observe measurement techniques
9.
Select the appropriate
measurement unit (NTU,
EBC or NEPH) by
pressing the
UNITS/EXIT
key.
10.
Read and record the
results.
Note: A time- and date-
stamped measurement
record can be printed or
transmitted by pressing the
PRINT
key.