Questions regarding superheated steam flowmeters
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Question: When measuring superheated steam using differential pressure transmitters of different ranges, does the instantaneous steam flow rate show a higher value when the differential pressure range is large, or when it is small?
It is advisable to choose a range that is moderate; if the differential pressure across your orifice plate is only 50 KPa, then a range of 0–100 kPa will suffice. The larger the sensor’s range, the greater the error will be
Oh, the larger the range, is the measurement error greater or smaller? Expert
Is the measurement error greater than or smaller than the actual flow rate? Experts, please help
Of course, it is best to get as close as possible to the differential pressure value; the differential pressure should be selected within the range of 1/3 to 2/3 of the transmitter’s scale, to minimize deviation
Your question isn’t phrased correctly; I don’t understand it
The differential pressure range of the transmitter needs to be determined based on the calculations for the throttling device; each flow rate range corresponds to a specific differential pressure value. The appropriate model of transmitter should be selected according to the required differential pressure range, and there is no such thing as choosing between transmitters with a large or small range.
Both nozzles 40 and 60 are available; it depends on the situation – the greater the pressure difference, the more accurate it is.
This depends on the accuracy of the differential pressure transmitter and the accuracy of the 4-20mA signal, among other factors. .