3.7 Operating reserve
The operating reserve defines the operational safety before contamination, vibrations,
misalignment, temperature fluctuations, etc. cause the MLG-2 to produce incorrect
measurements.
The MLG-2 is subject to a certain level of contamination depending on its environment
and application. In principle, the MLG-2 must be cleaned regularly and a teach-in
should be carried out after cleaning.
3.7.1 Operating reserves on the MLG-2
On the MLG-2, the operating reserve can be adjusted according to the operating mode.
Standard operating reserve
The standard setting for the operating reserve is the best setting for most applications.
High level of operating reserves
Setting the operating reserve high makes the MLG-2 very resistant to contamination.
However, it is not possible to activate high measurement accuracy in this case.
NOTE
In order to achieve a high operating reserve, the input sensitivity must be increased.
This increases the risk of reflection. If there are reflective surfaces near the detection
area, the light beams from the LEDs may reflect off these surfaces and reach the
receiver, even though there is an object in the detection area.
The high input sensitivity means that only opaque objects can be detected. Transparent
or semi-transparent objects are not detected.
Low operating reserve
Setting the measurement accuracy high reduces the operating reserve. When the
operating reserve is low, the MLG-2 must be cleaned more frequently and a teach-in
process must be carried out.
3.8 MLG-2 operating modes
The MLG-2 has the operating modes Standard, Transparent and Dust and Sunlight-
Resistant.
Within the operating modes, the performance options can be used to modify the
response time, minimum detectable object size, minimum detectable absorption (in
Transparent operating mode), and operating reserve.
•
The configurable performance options depend on the operating mode selected.
•
When the operating mode is changed, a new teach-in process must be performed.
3.8.1 Standard operating mode
Standard operating mode is the mode in which most measuring applications can be
carried out.
•
Only opaque objects can be detected.
•
There must not be a high level of constant light irradiation.
3.8.2 Transparent operating mode
Transparent operating mode enables the detection of transparent objects, such as
those made of glass, PET, etc.
3 PRODUCT DESCRIPTION
24
O P E R A T I N G I N S T R U C T I O N S | MLG-2 ProNet 8018748.1Q3I/2024-12-18 | SICK
Subject to change without notice
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