OPERATING INSTRUCTIONS | LFP CUBIC 8019918 /ZJA6/ 2017-07-20 | SICK AG
Subject to change without notice
37
8OPERATION
8.4.3 Automated adjustment of the interference signal limit
The adjustment of the interference signal limit (TrsHld) can be carried out automatically
in many applications.
Conguration
1. Set a ll level of 30%.
2. Log in to expert mode; see “8.4.1 Expert mode”.
3. Perform in the EXPRT-Pulse-AutoTn menu.
The sensor calculates a suitable value for TrsHld.
Note:
This setting can be used only in pulse mode.
8.4.4 Blanking the interference signals in the masked zone
To blank interference signals from the range above the maximum expected ll level,
a zone can be masked (dead zone). This zone begins at the process connection
and continues up to the congured point. If signal values above the dened limit
value (TrsHld) occur within this range, the sensor enters a safe state and signals the
error !MaskZ.
DZ
MR
A
E
1 No reection/very weak reection
2 Weak reection (e.g. spray water)
3 Strong reection (e.g. thick layer of ketchup)
DZ Dead zone
MR Active measuring range
x No detection/measurement
Detection/measurement
MaskTr
1 2 3
DZ MR DZ MR DZ MR
20% x
x
x
100% x
x
x
200% x
x
x