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Subsea pressure and level transmitters can operate at depths of 3,000m

26 September 2015

Impress Sensors & Systems has introduced a range of subsea pressure and level transmitters suitable for operation at depths of 3,000m and external pressures up to 300bar.

The SS series of subsea pressure and level transmitters, which are suitable for continuous submersion in seawater, use a ceramic pressure sensor, which provides excellent corrosion resistance for harsh seawater applications. They are fitted with a choice of subsea-certified connectors and locking sleeves to suit specific customer requirements.

The housing is available in a choice of seawater-compatible materials, including 316L stainless steel, high grade Duplex stainless steel or Marine bronze. Nominal pressures are from 1bar to 400bar.

All sensors in the series provide dual independent, 2-wire, 4-20mA outputs, with no signal loss over long cable lengths. The sensors are calibrated and supplied with a traceable serial number and calibration certificate. Operating (media) temperatures are from -20°C to +60°C in non-freezing media.

The electronics incorporate a microprocessor-based amplifier, with level measurements made possible by RS485 Modbus RTU serial communication. Impress provides a standard software package, which enables the user to re-range, calibrate and adjust some parameters of the device. There is also a facility to data log via the software, which is useful for checking installation and behaviours of the application.

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