English to Spanish Tech/Engineering Engineering (general) flowmeter manual

4.34 Differential Pressure Measurement
With current technology the differential pressure is normally measured with a differential pressure transmitter.
These transmitters may simply record the differential pressure and provide a 4-20mA signal to a flow computer or to DCS system.
XXX does not show any preference to the differential pressure transducer manufacturer. However, XXX has worked with the transducer suppliers which produce intelligent devices which require the YYY algorithms to generate a flow rate rather than a differential pressure output. Such cooperation has taken place with AAA and BBB.

Note: It is absolutely essential that the DP transducer ***is ranged for*** the specific YYY meter. Each meter will produce a range of differential pressure and the transducer must cover that range e.g. a YYY with a max. flow producing 230 inch water column would use a 250 inch or 300 inch DP transducer and would be spanned for 230 inches. The DP transducer must also be selected for the operating pressure and temperature of the metering application. It is also necessary that the DP transducer will cover the lower range of the DP produced accurately. DP transducers are notoriously inaccurate at the bottom end of the range. For flow ranges over 10:1, stacking transmitters is recommended. Stacking transmitters is a system with two transmitters where one measures the low DPs and the other measures the high DPs.

XXX: company
YYY: product
AAA, BBB: manufacturers