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Brief description of isolated pressure sensor and applications

Time:2018-10-21

An isolated pressure sensor measures gauge, differential or absolute pressure by isolating a silicon strain gage chip in air-evacuated oil with a stainless steel, titanium, or nickel alloy diaphragm. Sendo Sensor manufactures isolated pressure sensors for a variety of applications. Mechanically, these sensors are available with various process connections, diameters, and materials. Sensors can be configured in various pressure ranges as well as gage, vacuum gage, absolute, and differential pressure.


Isolated Pressure Sensor

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Type 1: mV output

Isolated Piezoresistive Pressure Sensor
SS103 series Isolated Piezoresistive Pressure Sensor
The SS103 series Isolated piezoresistive pressure sensor is the most economic version for pressure ranges from 350 mbar to 100 bar with absolute, gauge, sealed gauge type. They are non-temperature compensated and have a height of only 5.6 mm without compromising quality and performance, offers high accuracy and reliability in the room temperature. The sensor is made of Stainless steel 316 housing and Stainless steel 316 diaphragm, isolated construction, able to test various media, standard version is supplied with connecting pins, can be powered by Constant current or voltage supply. Same as SS100 and SS102 series, it has 19mm diameter and follow the working principle of piezo-resistance effect. Typical Applications: aviation electronics, meteorology, servo controls, robotics, sanitary......

Type 2: 4-20mA output
Isolated Piezoresistive Pressure Transmitter
SS305 Series Isolated Piezoresistive Pressure Transmitter
SS305 series isolated piezoresistive pressure transmitter is a portfolio of highly configurable pressure sensors that use piezoresistive sensing technology with a special signal conditioning circuit in a stainless steel housing, meets the high burst protection demands and is suitable for the use in all types of severe industrial applications. SS305 series is fully calibrated and compensated for offset, sensitivity, temperature effects and non-linearity, is a precise pressure measurement solution that optimizes system performance at a competitive cost, numerous standard or custom connectors, ports, pressure ranges and types, and output options.

Further reading
isolated OEM pressure sensorSS102 series isolated OEM pressure sensor
The SS102 Series isolated OEM pressure sensors have size Φ19 × 10 and cover the pressure ranges from 100 mbar to 100 bar. It use a high-stability silicon chip which is protected by 316L stainless steel diaphragm and silicone oil. The applied pressure acts on stainless steel diaphragm, then pass to the silicon chip through silicone oil.

isolated industrial pressure sensorSS302 series isolated industrial pressure sensor
SS302 Series isolated Industrial Pressure Transmitter is the basic type in Sendo Sensor, also it is the most widely used one, work following the piezoresistive principle, there are two potentiometers inside the housing so it is zero and span adjustable. It uses high stable and reliable pressure transducer and special circuit board to produce transmitter, and performance is good and reliable.

isolated flush pressure transducerSS115 series isolated flush pressure transducer
SS115 series isolated Flush diaphragm pressure transducer designed by piezoresistive sensor technology, the silicon chip is protected by 316L stainless steel and silicone oil filled in the isolated housing, typically for use in food, process and industrial applications where the media is either viscous, or is otherwise liable to block the port of a conventional pressure transducer with a recessed diaphragm or pressure port.

isolated piezoresistive pressure cellSS108 series isolated piezoresistive pressure cell
SS108 Series isolated Piezoresistive Pressure Cell is with isolated construction and precise compensation. It uses high stable silicon die, housing with outer diameter Ф15mm 316L stainless steel housing. They have been developed especially for the measurement of high pressures such as 100bar, 600bar, covered a wide pressure range from 10 to 1000 bar.

isolated flush pressure sensorSS402 series isolated flush pressure sensor
SS402 series isolated flush pressure sensors available pressure ranges spanning from 1.5 psig up to 15000 psig. Typically applications: designed for use in food, process and industrial applications where the media is either viscous, or is otherwise liable to block the port of a conventional pressure transducer with a recessed diaphragm or pressure port.

ceramic pressure sensorPS100 series ceramic pressure sensor
PS100 Series Ceramic sensor chip is a dry-type ceramic piezoresistive sensor chip by special technology. Ceramic is a recognized material of high elasticity, corrosion & abrasion resistance, strong shock and vibrant resistance. The thermal stability can make its operating temperature up to -40 to 120°C and achieves high accuracy, high stability.

isolated OEM pressure sensorSS301 Series isolated OEM pressure sensor
SS301 series isolated OEM pressure sensor take advantage of piezoresistive technology and are fully steel media isolating with stainless steel and no internal elastomer seals. This design often makes them resistant to harsh, aggressive media and challenging environments and offer the pressure range of minimum 100 mabr and maximum 400 bar for OEM applications. High measurement accuracy is provided through extensive sensor characterization.

isolated oil pressure sensorSS207 series isolated oil pressure sensor
SS207 Series isolated Oil Pressure Sensor is the one of the most mature product in Sendo, it is OEM tested, with high accuracy, long term stability, good repeatability, has been wildly used in automotive oil system, automotive AC system, automotive brake system and other car security system. available with range 15psi, 30psi, 50psi, 75psi, 100psi, 150psi

low cost pressure sensorSS307 series low cost pressure sensor
SS307 Series Low Cost Pressure Sensor give out a current signal 4 to 20mA or voltage signal 0 to 10V directly proportional to the pressure value present on the system to which they are connected, the housing is made from stainless steel with a choice of internal O ring seals to select to ensure the product is suitable for a wide range of applications.

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