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Welcome to GTV! Today I’ll be showing you some of Eaton Cutler Hammer E65 SM Series
Photoelectric Sensors Sensing Functions. This demo kit here will demonstrate the importance
of excess gain in overcoming conditions and hazards. It will also show how the SM sensors
fares against other leading brand sensors. The other sensors here are the Banner QS18,
Allen-Bradley RightSight, and the SICK Optik ELF. The three panels here in the middle simulate
real world contaminants. The status indicators are illuminated in blue to show that the device
is actuated and that there is no known interference with the light being sensed. The first pane
here will block off 40% of the light. I will slide it up along the sensors. The SICK series
seems to be unaffected as does the Allen Bradley series. I will continue on to the Banner here
and I notice that the margin indicator is starting to flash. This tells me the signal
strength has been dropped down to a lower level because of this attenuation. I will
continue this to the SM series and you will notice a slow blink, which means there is
a gain of 4 to 8, which has still plenty of margin to operate. I will now move the panel
here all the way down and use this next panel here. This simulates an increase in dirt and
contamination. I will move it up to the SICK sensor, where the signal indication seems
to be stable. The Allen Bradley shows the signal strength has dropped off, but the output
still remains. Moving up to the Banner sensor, the blue light shuts off. This shows that
the Banner does not have enough excess gain to operate and see through the level of contamination.
Finally, I will bring it up to the SM series. I can see that the light continues to blink
slowly, but the signal strength is still high enough to see through the contamination. I
will bring this panel down and move on to the last one. This panel has 80% attenuation.
I will move it up to the SICK unit and the light on the right has turned off. The dirt
or contaminates has blocked the beam. I will continue on to the Allen Bradley sensor and
notice that the attenuation has again blocked the light and the sensor is not able to properly
function. I will go up to the banner unit to see that it is also unable to see through
the panel. Now on the SM series, the light on top has begun to flash a little quicker
than before. This signifies that the continues to operate even though the signal strength
has dropped down between a gain of 1 or 4 times what is necessary to see the reflector
target. Eaton Cutler Hammer’s E65 SM Series Photoelectric Sensors, along with thousands
of other products and services are available at galco.com.