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Question
What's the difference between a Reflective Fiber Unit and a Coaxial Reflective Fiber Unit?
Answer
The sensing surfaces of the Fiber Units differ as shown below. Each is used for a different type of application.
The differences in the sensing methods are given in the following table.
| Sensing method | Features and other information |
| Reflective models (E32-DC200 and others) | Used for detecting the presence of ordinary workpieces. Various Sensing Head shapes, sensing distances, etc., are available for specific applications. The operating range depends on the set direction (see note) of the Fiber Head. |
| Coaxial reflective models (E32-CC200, E32-D32, E32-D32L, E32-C31, E32-C41, E32-C42) | Used for workpiece positional detection. The operating range depends on the set direction of the Fiber Head. (This is because a fiber for the Receiver is placed near the fiber for the Emitter.) Models other than the E32-CC200 and E32-D32L can be used as a small-spot reflective models when combined with a small-spot lens (E39-F3A, E39-F3A-5, E39-F3B, and E39-F3C). |
Note:The set directions for the Fiber Head are 
and 
.
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