
16
SELECTING TURBIDITY UNITS
The results for each calibration curve will be reported in the default units for that
calibration curve unless diff erent units are chosen. The default unit is shown after the
calibration curve name. The default units are:
Calibration Curve
Default Unit
2020t
Nephelometric
NTU (Nephelometric Turbidity Units)
Ratiometric
NTRU (Nephelometric Turbidity Ratio Units)
Attenuation
AU (Attenuation Units)
2020i
Nephelometric
FNU (Formazin Nephelometric Units)
Ratiometric
FNRU (Formazin Nephelometric Ratio Units)
Attenuation
FAU (Formazin Attenuation Units)
It is possible to choose to have the results reported in an alternative unit instead of the
default unit for each mode. When ASBC (American Society of Brewing Chemists) and EBC
(European Brewery Convention) units are desired the Nephelometric calibration curve
should be used.
For the 2020t, the available units are: NTU, NTRU, AU, ASBC, EBC
For the 2020i, the available units are: FNU, NTU, FNRU, FAU, ASBC, EBC
NTRU, AU, FNU, FNRU and FAU are numerically equivalent to NTU. The units diff erentiate
which detector and light source was used to make the measurement.
See page 12 for the
defi nition of turbidity units.
1.
Press and briefl y hold
to
turn the meter on. The LaMotte
logo screen will appear for about
3 seconds and the
Main Menu
will
appear.
Main Menu
Measure
Data Logging
Options
12:00:00 001/500
2. Press
to scroll to
Options
.
Main Menu
Measure
Data Logging
Options
12:00:00 001/500
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