BERTHOLD TECHNOLOGIES LB 480, Руководство пользователя

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02.2017
Menu Structure Volume 3
2 Calibration Method
Different calibration methods are used depending on the application
and the local conditions. If you need help, please refer to
chapter
7.3 and chapter 7.4 .
You can choose from the following calibration methods:
• 1-POINT LIN
Use the 1-point calibration only if full calibration is not possible.
This method requires an empty calibration (level below mea-
suring range). Using additional inputs such as product density
and measurement path (
Device Config

Setup

Cal
Parameter

Product Conditions ), the count rate for the
upper calibration point is then determined automatically.
• MULTIPOINT
Level measurements are mostly calibrated using this method.
In addition to the empty calibration, you can also carry out a
full calibration and, if necessary, calibrate additional calibration
points between 0 and 100%.
Up to 10 calibration points can be entered. In most cases, how-
ever, 2 calibration points suffice: empty and full.
• 1-POINT EXP
Rarely used.
Use the exponential 1-point calibration if you expect an expo-
nential characteristic curve and full calibration is not possible.
This method requires an empty calibration (level below mea-
suring range). Using additional inputs such as product density
and measurement path (
Device Config

Setup

Cal
Parameter

Product Conditions ), the count rate for the
upper calibration point is then determined automatically.
• 2-POINT EXP
Rarely used.
Use the exponential 2-point calibration if you expect an expo-
nential characteristic curve and wish to perform a full calibra-
tion as well.
3 Cal Curve Type
• NORMAL
Is used in almost all cases.
With rising level, a falling count rate is expected.
• REVERSED
Is rarely used, for example with so-called backscatter measure-
ments.
With rising level, a falling count rate is expected.