BERTHOLD TECHNOLOGIES LB 480, User Manual

Page: 343 / 450

SENSseries LB 480 Level measurement
BERTHOLD TECHNOLOGIES GmbH & Co. KG
3 – 343
Volume 3 Menu Structure
3
4 ReadIn Time

Define here the period of time over which the count rate is to be
read-in with
ReadIn for each calibration point.
The statistical variation of the count rate is averaged over this time
period. The longer it is, the better the mean value. A time period of
30 s (default setting) is usually reasonable.
2.23
Product Conditions
Menu path: Device Config

Setup

Cal Parameter

Product
Conditions .
On this menu you enter the basic product-specific settings that need
to be performed before calibration.
Entries for these parameters are required only in the following
cases:
• For a 1-point calibration if full calibration is not possible.
• For containers with a gas pressure as long as the calibration
cannot be performed at the same gas pressure as in operation.
• For containers with varying gas pressure, if the gas pressure is
to be compensated for automatically.
• For products containing natural radioactivity which is to be
compensated for automatically.
1 Measuring Path
This menu item is required for Calibration Method 1-POINT to
determine the full count rate automatically.
The value to be entered is the length of the beam path through the
measured product.
100%
0%
100%
0%
0%
100%
Measuring Path
Point source
Rod
detec
tor
Product
Point detector
Measuring Path
Product
R
od sour
ce
Measuring Path
Point detector
Product