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How can we explain accuracy of a transmitter in simple words

Level and Pressure Instrumentation Forum

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Schneider Alumni (Retired)
Schneider Alumni (Retired)

How can we explain accuracy of a transmitter in simple words

Credit to Rincy George...below is her post from LinkedIn on 10/22/2020.  It is a wonderful practical exercise to explain accuracy.



How can we explain accuracy of a transmitter in simple words to a layman? Let’s take an example of 3 sensors that define accuracy in 3 different ways:
Sensor 1 – 1% of full scale
Sensor 2 – 1% of measured value
Sensor 3 – 1% of calibrated span

Now we can consider a pressure transmitter of:
Range limits 100 KPa to 1100 KPa,
Calibrated from 0 kPa to 800 kPa and
Measured at 550 KPa.
Error can be calculated as below:
Sensor 1 – 1% x 1100 KPa = 11 KPa
Sensor 2 = 1% x 550 KPa = 5.5 KPa
Sensor 3 = 1% x 800 KPa = 8 KPa
So, which sensor do you think is the best? That’s right, Sensor 2 of course!
And that’s exactly what our patented #FoxCal technology is all about 😊 The Advanced 10S series has an accuracy of up to +/- 0.05% Reading and Premium 50S Up to +/- 0.025% Reading.

#pressure #transmitters #accuracy #schneiderelectric #processinstrumentation

Transmitter Collage.jfif

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