01/10 347 LB 444 K-40
24
6.5 Calibrate
Background for rod detector
N/A
Product selection
No. 1/2/3/4:
Select product to be calibrated and confirm with <enter>.
Suspension measure
No
<enter>.
Unit select
g/cm³, t/m³,Bx, weight %, °Be, g/l, mm, g/m
2
, % K
2
0
Select the unit for concentration measurement and area weight measurements (mm,
g/m²).
% K20
<enter>.
Note:
The selection of the displayed unit does not have any influence on the calibration or the
measurement.
Data input
Enter or read in the calibration data for the requested number of calibration points.
Calibr. Data transfer
Select “Yes” to copy the calibration data of a product that has already been calibrated.
In the copy you can change the data then as needed.
Sequence:
Yes <enter>
Product X <enter> Y <enter>
etc.
Then run through Rate 1 to Rate 10 and correct them if necessary. You may correct the
values, if necessary.
1. Rate to 10. Rate
You need at least 2 calibration points (see chapters 6.5 and 7.2.2). You have to run
through all 10 points. Calibration points with zero values are not calculated.
Data can be entered manually or read in by pressing the <run> button.
Its also possible to use the background radiation as a calibration point. This has to be
measured
a) with empty vessel or
b) with product in the vessel which does not contain any potassium or
c) dismounted detector arranged on a concrete floor or min 20 mm lead or 40 mm
steel plate in front of the radiation window.
The count rate is read in automatically. As soon as the measured value is stable, press
the <run> button again to stop the reading-in process. Press <enter> to confirm the
read-in or entered value.
If you push <more> to go to the next item without pushing <enter> first, the
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