Amplified voltage output transducers for use in applications for measuring pressure of high temperature steam such as sterilizing autoclaves, food processing and power generation.
These voltage signal output pressure transducers include integral cooling features for protecting the transducer electronics from steam temperatures which would otherwise cause damage to standard industrial pressure transducers.
Products
- IMP Industrial Pressure Sensor - The IMP industrial pressure sensor, has a piezo‐resisitive ceramic pressure sensor giving it excellent media compatibility
- IMP Low Cost Pressure Sensor - Versatile low price pressure sensor with a wide selection of electrical and mechanical options for customisation.
- DS200P Sanitary Low Range Pressure Gauge, Switch and Sensor
- DMP331P Hygienic Flush Pressure Transmitter
- DMK331P Flush Diaphragm Pressure Sensor
- ASMT Miniature Combined Temperature and Pressure Transducer
Applications
- Vacuum and steamer pressure transducer with -30 inHg to 100 psi range - Pressure transducer with an output voltage of 1-5V, able to withstand up to 150 C on the pressure side
- -0.9 to +2.2 bar g Autoclave pressure transducer - Autoclave pressure sensor for measuring vacuum and steam pressures from -0.9 to +2.2 bar gauge with a 0 to 10 volt output signal.
- 20 bar absolute steam pressure transducer - Pressure transducer for measuring a closed steam system pressurized by Nitrogen up to pressures of 20 bar
- 180 degC pressure sensor for saturated steam up to 10 bar - A built-in cooling element allows the pressure sensor to be used on media temperatures up to 200 degC (FKM seal limit).
Product Help
Steam temperature
Is steam temperature always the same value?
Under standard atmospheric conditions water turns to a gas and produces steam at a temperature of 100 degC / 212 degF, however this boiling point temperature is dependent on the pressure. As the pressure increases, the point at which water turns to a gas is a higher temperature. For example at a pressure of 10 bar gauge, the temperature at which steam is produced is 184 degC / 363.2 degF.
Maximum operating temperature
What is the highest operating temperature limit of the pressure transducer?
When specifying a pressure transducer for use on steam, it is important to determine the steam temperature by using a published table, online calculator or formula. At higher pressures it will become increasingly difficult to find suitable pressure transducers because many will not have a sufficiently high enough maximum operating temperature.
Higher temperature steam protection
How are pressure transducers protected from steam at higher temperatures?
Many of the pressure transducer technologies that are widely used by manufacturers are not suitable for direct contact with high temperature steam, with typical operating limits from 100 to 125 degC / 212 to 363.2 degF. Therefore it is necessary to add protection components between the pressure transducer and steam to act as a heat sink to cool the media in close proximity to the transducer.
The high temperature protection components vary in mechanical design; some allow the steam to pass through, whilst others will isolate the steam using an oil filled isolation diaphragm seal. The majority of these design concepts rely on providing sufficient surface area of thermally conductive material to make contact with the surrounding cooler ambient air, and a restriction to reduce steam volume or a membrane to block it altogether, to increase the cooling effect.
Checklist for steam pressure transducer requirements
Define your steam pressure transducer requirements using this checklist:
- Pressure range?
- Voltage output type?
- Accuracy?
- Electrical connection?
- Media type? Steam
- Maximum media temperature?
- Maximum ambient temperature?
- Process connection?