Hach-Lange 2100 AN Laboratory Turbidimeter User Manual - Manual (Page 32)

Color measurement and calibration procedure
1. Make sure that the
455 nm filter assembly
is installed in the
instrument. 2. Push RANGE to
select manual or
automatic ranging.
Refer to
Manual or
automatic ranging
on page 32.
3. Push SIGNAL AVG
to set signal averaging
on or off. Refer to
Signal averaging on or
off
on page 32.
4. Push UNITS/Exit
until "CU" is shown on
the display. 5. Push CAL/Zero.
The display shows
"ZERO" CU.
Note:
The instrument starts
analytical zeroing for
Color, Transmittance,
and Absorbance modes
at the same time. 6. Using the manual
flow cell kit, install the
flow cell. Refer to
Using
a flow cell
on page 33.
Note: The sample cell
cover does not close
when the flow cell is
installed.
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