3.5.13
Contamination indication
The device has an front screen to protect it. This front screen can get dirty. Contamina‐
tion reduces the energy emitted and received by the laser beam. As a result, scanned
objects appear to have a lower remission than they actually have and, with a certain
level of contamination, it will no longer be possible to perform measurements.
The contamination is constantly measured by a separate system during operation. A
contamination warning is output first for the different degrees of contamination. If the
front screen is not cleaned and contamination increases, then a contamination error is
output.
Depending on the application in which the device is used, you can choose from differ‐
ent contamination measurement strategies.
•
Deactivated
: No indication of contamination.
•
High availability
: Contamination warning and contamination errors are only output
when the front screen is uniformly contaminated. This means that all 6 sectors
must have reached the limit value for a warning or error.
•
Available
: Contamination warning and contamination errors are output when the
front screen is partially contaminated. With this strategy, the front screen is div‐
ided into two monitored areas (3 sectors on the right half and 3 sectors on the left
half). Only when all 3 sectors of a monitored area have reached the limit value for
warning or error does the contamination warning or contamination error become
active.
•
Semi-sensitive
: Contamination warning and contamination errors are output when
the front screen is partially and only slightly contaminated. The sensor evaluates
all sectors and activates the contamination warning or contamination error using
the following strategy:
°
No warning/error: If the sum of sectors with reached limit value for error = 0
and the sum of sectors with reached limit value for warning <=1
°
Warning: If the sum of sectors with reached limit value for error = 1 and the
sum of sectors with reached limit value for warning >=2
°
Error: If the sum of sectors with reached limit value for error >= 2
•
Sensitive
: Contamination warning and contamination errors are output even when
there is just a little or local contamination. When a sector has reached the limit
value for warning or error, the contamination warning or contamination error
becomes active.
NOTE
•
The cleaner the application environment is, the lower you can set the contami‐
nation measurement sensitivity. If a high precision of the measured values is
required, the contamination measurement must be set to the most sensitive level.
•
If a weather protection hood is mounted on the device, the accessory combination
used must be communicated to the device in SOPAS ET.
Contamination warnings and contamination errors are displayed on the status indica‐
tors of the device
see "Status indicators", page 10
.
3.5.14
Calculation of the field size for mobile applications
In order to prevent collisions between vehicles, and between vehicles and fixed objects,
the switching field must have sufficient length and width.
3
PRODUCT DESCRIPTION
28
O P E R A T I N G I N S T R U C T I O N S | MRS1000
8020494/1AZF/2021-05-10 | SICK
Subject to change without notice
