ESBD_504019_1775484433594_Pressure_transducer_specifications.pdf

This is a technical specifications document for a pressure transducer device related to a Texas state or local contract opportunity. The pressure transducer is designed for water-level measurement with a measurement time of less than 1.5 seconds and offers multiple output options including SDI-12 (version 1.3) at 1200 bps and RS-232 at 9600 bps. The device operates within a temperature range of 0 to 60 degrees Celsius with a temperature accuracy of 0.2 degrees Celsius and features a water-level resolution of 0.0035% full-scale range. The sensor is equipped with an overpressure rating of 2 times the pressure range and requires power input between 6 to 18 volts DC, with quiescent power consumption below 50 microamps and active measurement/communication consumption up to 8 milliamps for a one-second measurement cycle, with a maximum of 40 milliamps.

The high-accuracy option for this pressure transducer provides a total error band of 0.05% full-scale range, which accounts for combined errors from nonlinearity, hysteresis, nonrepeatability, and thermal effects across the compensated temperature range per ISA S51.1 standards. The device supports a maximum cable length of approximately 457 meters (1500 feet) when a single SDI-12 sensor is connected to a port. A critical operational warning notes that the sensor could be damaged if encased in frozen ice, which is an important consideration for deployment in certain climates.