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9 Functional Safety Volume 1
source shielding is closed to carry out the full calibration, then
you have to keep in mind:
Make sure that the absorption of the closed shielding nearly
corresponds to the absorption of the product. If in doubt,
please contact BERTHOLD TECHNOLOGIES or your local repre-
sentative.
– Full calibration has to be carried out as described in the
User’s Manual. See Volume 3, chapter "4.4.3 Full Calibra-
tion".
TEST
– Write down the empty and full count rate. Enter the empty
count rates under S
ERVICE MENU / TEST CALCULATION.
In this manner, you can simulate the two states Empty /
Full and check if the displayed levels, 0% / 100%, are cor-
rect. If not, please check the calibration.
Function check
The tank on which the measurement is carried out is in the nor-
mal operating mode, the level is below the measuring range.
The measured value has to fluctuate around 0%.
– Increase level above the measuring range (if not possible:
close shielding).
The measured value has to fluctuate around 100%.
– The alarm output must indicate an alarm and must not
switch back anymore.
Password
– Enter a password as described in the User’s Manual, see
Volume 3, "2.13 E
NTER PASSWORD", on page 3–312. This
rules out data manipulation by unauthorized persons.
The calibration is now finished and the measurement has
been taken into operation.
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