Troubleshooting
84
Ver.3 29.06.2007
5.1.4
Magnetic switch
Figure 5.3
A reed switch is a switch (or a sensor) that reacts to a magnetic field. Inside the reed switch is a
glass tube containing two metal reeds that attract to each other when subjected to a magnetic field
from a magnet. See the figure. This can easily be tested using a multimeter and a magnet.
5.1.5
Inductive detector
Figure 5.4
These sensors trigger when metal objects pass within a distance of 1 - 1.5 mm.
A function test can be easily made since the sensor LED lights each time it senses an object.
5.1.6
Capacitive sensor
Figure 5.5
Reacts to matter containing humidity, such as corn, a hand, etc.
A function test can be easily made since the sensor LED lights each time it senses an object.
Содержание Rapid RDA 400S
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