SICK LFP Inox - Automatic Interference Signal Limit Adjustment; Blanking Interference Signals in Masked Zone

OPERATING INSTRUCTIONS | LFP INOX 8019921/15H0 / 2019-09-30 | SICK AG
Irrtümer und Änderungen vorbehalten
34
8 OPERATION
8.4.3 Automatic interference signal limit adjustment
The interference signal limit (TrsHld) can be adjusted automatically in many applica-
tions.
Conguration
1. Set the level to 30%.
2. Log in to expert mode, see “8.4.1 Expert mode”.
3. Run EXPRT-Pulse-AutoTn in the menu.
The sensor identies a suitable value for TrsHld.
Note:
This setting can only be used in Pulse mode.
8.4.4 Blanking interference signals in masked zone
To blank interference signals from the area above the maximum anticipated level,
a zone can be masked (dead zone). This zone starts at the process connection and
extends to the congured point. If signal values above the set limit value (TrsHld) occur
within this area, the sensor goes into the safe state and the sensor signals a !MaskZ
error.
  
DZ
MR
A
E
1 No/very poor reection
2 Poor reection (e.g., splashed water)
3 Strong reection (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
