BERTHOLD TECHNOLOGIES LB4710-050, User Manual

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Chapter 4 Getting Started
Mini-Switch LB 471
56
4.4
Calibration in Standard Mode
Empty calibration has to be performed in order to calibrate the
measurement.
Prerequisites (see also page 60 ):

Container must be empty or at least below the monitoring
level.

The gas density existing under actual operating conditions is
available in the container. If this is not possible, select the pro-
fessional mode and compensate the gas density value with
code 35. The special features of the professional mode have to
be taken into account.

A possible existing heating or cooling jacket is filled with the
medium to be used later.

In agitator containers, the agitator must in operation, if it may
have any influence on the limit value.

The shielding with the source has been installed. The radiation
exit channel is open.

The EVU is not in the edit mode.
Calibration:
Push Cal button for 3 seconds.
The seconds are counted down in the top row.
The bottom row shows the count rate.
In code 20 you can read off the measured zero count rate.

The measurement is now calibrated and already sup-
plies live measured values.
Note!
A system check has to be carried out to ensure that the measure-
ment operates correctly.
To do this, fill the container above fill level limit, or alternatively,
close the shielding when the container is empty.
59s
24