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Les langues disponibles
Les langues disponibles
6.
Press
desired language.
7.
Press
ENTER
language. The screen will momentarily
display, Storing... for about 1 second
and return to the Setup Menu.
„ SETTING THE LOOPING MENUS
Looping menus incorporate a looping feature which allows the user to quickly reach the last
choice in the menu from the first choice. In a looping menu the last choices in the menu
are above the first choice and scrolling upward moves through the menu in reverse order.
Scrolling downward moves through the menu from the first choice to the last and the menu
starts over following the last choice. Menu choices can be reached by scrolling in either
direction. The feature called Looping Menu can be turned on and off in the Setup Menu. The
default setting is enabled.
CALIBRATION & ANALYSIS
„ CALIBRATION
TURBIDITY STANDARDS
Only use AMCO or formazin standards with the 2020t/i BLE. StablCal
50 NTU should not be used to calibrate the 2020t/i BLE. The diluent used in the StablCal
standards has a different refractive index than traditional formazin standards and will affect
the results. The concentration of the calibration standard should be similar to the expected
concentrations of samples that will be tested. The standard should never be poured from
the tube back into the bottle. The standards will not have the same turbidity value in all three
modes.
The following standards are available from LaMotte Company:
Mode Units
Nephelometric (N)
Meter
Code 1480
Code 1441
Code 1446
Code 1442
Code 1447
Code 1444
Standards may vary slightly from lot to lot for the ratiometric mode. Standard values for the
nephelometric mode and ratiometric mode are located on the standard bottle label. Use the
value on the turbidity standard bottle label as the target value when manually calibrating
the meter in the nephelometric mode and the ratiometric mode. Standards for calibration
in the attenuation mode should be prepared from Formazin. A 4000 NTU Formazin standard
that is compatible with the LaMotte 2020t/i BLE is available at www.gfschemicals.com.
or
to scroll to
to select desired
Nephelometric (N)
2020t BLE
0 NTU
1 NTU
-
10 NTU
-
-
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French
Portuguese
12:00:00 p
Set Clock
Set PWR Save
Set Backlight Time
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12:00:00 p
Ratiometric (R)
2020i BLE
2020t BLE
0 FNU
-
1 FNU
-
10 NTRU
10 FNU
100 FNU
29
1/500
Options Menu
1/500
standards below
®
Ratiometric (R)
2020i BLE
0 NTRU
0 FNRU
1 NTRU
-
1 FNRU
-
10 FNRU
-
100 FNRU
®
-
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