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What causes E4PA Ultra Sonic Displacement/Measuring Sensor A1 (Power Indicator, Green LED) And A2 (Error Indicator, Red LED) Indicators To Flash Alternately?

E4PA ultra sonic displacement measuring sensor 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?

1.The reflected sound wave is unstable.
2.The surface of the sensing object is not flat or the distance setting is near the maximum rated detection distance.


1.Use the Sensor at a closer distance.
2.If you cannot move the Sensor any closer, use a Sensor that has a longer detection distance. For example, if the Sensor that you are currently using is the E4PA-LS400-M1 with a detection distance of 500 to 4,000 mm, then use a E4PA-LS600-M1 with detection distance of 800 to 6,000 mm instead.


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Created 2008-12-18
Modified 2016-05-13
Views 2149


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