FAQ No. FAQ01344
Question
At the maximum sensing distance of the
E4PA, the output should be
20 mA but only 16 mA is output. What is causing this?
Answer
Liquid surfaces are not perfectly flat, therefore perfect reflection of
the waves cannot be obtained. The linear output cannot reach its maximum
value.
To use the Sensor at its maximum sensing distance (e.g., when the sensing
range of the E4PA-LS400-M1, is 500 to 4,000 mm, the maximum sensing
distance is 4,000 mm), the sensing surface must be perfectly flat and the
waves must be vertical. Keep this in mind when positioning the Sensor.
Other Displacement Sensor FAQs
 How much does wind affect the E4PA?
What is the principle of regular reflection measurements?
What is the principle of diffuse reflective measurements?
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