![TeraBee ND-TOF-1 Скачать руководство пользователя страница 20](http://html1.mh-extra.com/html/terabee/nd-tof-1/nd-tof-1_user-manual_1088195020.webp)
During setup and operation, please make sure that the sensor is not pointing at a
distance longer than the maximum offered range (12.5 meters). Please ensure that
a physical object/obstruction (e.g wall) is covering the sensors entire Field of View,
no further than the maximum range (12.5 meters) of the sensor.
Operation
Unlike mode 1, a switching output will not be activated while an object is in the sensors
trigger zone. In mode 2, as soon as an object or a person completely leaves the sensors
trigger zone in the light beam (measured distance reads the background threshold
distance) - a switching output is activated. Both LED indicators, Th1 and Th2, will blink
GREEN once to indicate a detection. Any movement beyond the background threshold will
be ignored.
The NO/NC switching output activation time by default is set to 250 ms, and can be
modified using the “NO/NC on time” parameter (see
).
Figure 12. Mode 2 operation, detection principle
Rolling buffer (5 measurements)
After an object has entirely left the light beam of the trigger zone, the distance that was
recorded during detection, is stored in a register as the measured distance to object. The
sensor has the capacity to store 5 measurements at the same time. Every new
measurement will erase the oldest (5
th
) value from the device. This functionality allows to
obtain accurate distance-to-target feedback as an added layer of intelligence, in addition to
the NO/NC switching output. Please refer to
Copyright © Terabee 2019
Terabee, 90 Rue Henri Fabre
01630, St Genis-Pouilly, France (next to CERN)
20/47