The broad portfolio of sensors for pressure and depth comprises models for gauge and absolute pressure sensing with variants for low pressure ranges as well as pressures of up to 400 bar. Featuring piezo-resistive technology and a microprocessor-based amplifier, these pressure sensors in a stainless-steel housing are suitable for a wide range of industrial applications. Each pressure sensor device is temperature compensated and calibrated, requires no adjusting and provides stable signals on voltage and current outputs or even for wireless transmission to matching wireless receivers. Custom versions of pressure ranges and outputs, process and electrical connections are available to suit your application.
Pressure is the force exerted by a liquid or gas on a vessel which prevents the medium from expanding. Pressure values are usually given in the form of a force per unit area or as the height of a liquid column exerting the same pressure. Pressure sensors detect this force and generate a signal proportional to the pressure acting on them - usually an electrical signal, but optical, visual or acoustic signals are also possible.
In a huge number of everyday applications, pressure sensors are used in a variety of ways for monitoring and control. In many systems, the sensors can also measure pressure as well as other variables such as flow, speed, water level or altitude.
Absolute pressure sensors
An absolute pressure sensor measures the pressure in relation to the theoretical, perfect pressure of vacuum (0 bar). The air pressure or atmospheric pressure, for example, is an absolute pressure and equals around 1 bar or 100 kPa at sea level.
Gauge pressure sensors
Gauge pressure sensors can be calibrated to measure the pressure in relation to the air pressure present at a given location. This makes such a sensor suitable for use in many different applications.
Sealed gauge pressure sensor
Sealed gauge pressure sensors are gauge pressure sensors by design, with the difference that the manufacturer calibrates these pressure sensors after manufacture so that they measure pressure in relation to the air pressure at sea level (1 bar).
In addition to mechanical pressure sensors that use the mechanical effects of a liquid or gas (for example by compressing a spring system) to measure the pressure of this medium, there are several other measuring principles based on technologies like strain gauges, variable capacitance, MEMS, vibrating resonators, optical fibers or piezoresistive semiconductors. The latter technique uses the piezoresistive effect of certain semiconductors to measure pressure, i.e. the change in conductivity of these materials when pressure is applied to them.
The IPS and IPSU industrial pressure transducer series are suitable for use in a wide range of industrial applications. These transducers use a piezo-resistive ceramic pressure sensor, giving excellent media compatibility within a stainless steel housing. Models for BSP or NPT process connection are available. Options for electrical connection are DIN 43650 or M12 connectors (mating cable and plug assemblies available), and the output is calibrated in metric or psi ranges.
Low pressure ranges are the specialty of the IPSL series of industrial pressure transducers. With their piezo-resistive silicon sensor, giving excellent media compatibility within an oil filled 316L stainless-steel housing, these devices provide stable pressure signals especially in high vibration/shock applications. Options for electrical connection are DIN 43650 or M12 connectors (mating cable and plug assemblies available). Custom versions can be made for particular applications.
Designed for continuous submersion in liquids such as water, oil and other non-aggressive chemicals, the ILS and ILSU series of submersible pressure sensors use the latest piezo-resistive media-isolated silicon sensing technology and a stainless-steel diaphragm within a 316L stainless-steel housing. With outputs calibrated in metric or psi ranges, the ILS and ILSU series offer excellent reliability, stability, repeatability and resolution, as required for hydrostatic level measurement in rivers and reservoirs.
Based on the popular IPS series of pressure sensors, the key benefit of the IWPT range of wireless pressure transmitters and receivers is low-cost installation for long distances as well as in inaccessible environments or on moving structures. The transmitters are easily paired to the compatible IWR family of single- (IWR-1) or five-channel (IWR-5) wireless receivers, thus offering a “plug and play” solution to your pressure measurement applications with a line-of-sight range of up to 750 m.