FAQ

Sensors

Photoelectric Sensors

Displacement Sensors

Vision Sensors

Photomicro Sensors

Ultrasonic Sensors

Pressure Sensors

Vibration Sensors

Sensor Controllers

Displacement Sensor Topic: Sensing Object Distance / Sensor Distance

FAQ No. FAQ01260

Question

How far should E4PA Ultrasonic Sensor be separated from each other?
 

Answer

Separate the Sensors as specified in the following table when using two or more Sensors in close proximity to one another.

Parallel Arrangement:

 

Model	Y
E4PA-LS50-M1	0.3 m min.
E4PA-LS200-M1	1 m min.
E4PA-LS400-M1	2 m min.
E4PA-LS600-M1	2.5 m min.

Note:
The values shown in the table are for reference only. The actual values will vary depending on the surface conditions of the sensing object, and on the ultrasonic waves that are reflected. Moreover, if the sensing object is inclined, the Y value in the table will be increased further.

Facing Arrangement:

 

Model	Y
E4PA-LS50-M1	2 m min.
E4PA-LS200-M1	8 m min.
E4PA-LS400-M1	16 m min.
E4PA-LS600-M1	25 m min.

Other Displacement Sensor FAQs

 What is the most effective type of reflection for a given sensing object?

 The E4PA A1 (power indicator, green LED) and A2 (error indicator, red LED) indicators flash alternately and the E4PA is not operating properly. What is causing this, and what can we do to resolve the problem?

 How are the gain switch functions AUTO, METAL, WHITE, and BLACK used in a Reflective Sensor?