High temperature pressure transmitters with a 4-20mA output, tolerant to high temperature applications such as steam, food processing & engine monitoring.
High temperature pressure transmitters are used in applications where the media temperature exceeds the temperature limits of standard pressure transmitters or where it is not possible to fit a stand off pipe, pigtail or other cooling device to reduce the media temperature.
16 bar, 200°C steam pressure transmitter and gauge - Combined pressure transmitter and indicator in one package with the option for use with high temperature media such as steam at 200°C
Autoclave pressure sensor and display with 10 bar range - We are looking for a autoclave pressure sensor and display for connecting to a laboratory steam sterilising autoclave and operates at about 10 bar @160°C
ATM/T Pressure and Temperature Dual Output Transmitter
DMP331P Hygienic Flush Pressure Transmitter
DMK331P Flush Diaphragm Pressure Sensor- DS200P Sanitary Low Range Pressure Gauge, Switch and Sensor
- Aerospace component testing hi-temp air pressure sensor for up to 300C with 20 barg range - Conduct accurate aerospace component testing with the DMP 331P pressure sensor. With a 20 bar g range and 300°C temperature capability, it's ideal for testing pneumatic valves, heat exchangers, and sensors under simulated operating conditions.
- 20 barg 4-20mA output 200degC steam pressure sensor for process control use - A hi-temp media 200°C/392°F max gauge pressure sensor for process control use to measure pressure of steam over a range of 0 to 20 bar g from the 1/2 BSP flush diaphragm male process connection, and sending the corresponding 4-20mA signal through the M12 connector electrical connection.
- 10 bar g steam pressure transmitter, indicator and PNP switch - Steam pressure transmitter with LED display indicator for measuring 0 to 10 bars with in-built temperature reducer
- 10 bar g steam pressure transmitter - High temperature pressure transmitter for use with steam pressures up to 10 bar gauge.
IMPLR Low Range All Stainless Steel OEM Pressure Sensor
DS201P High Range Flush Pressure Gauge, Switch and Sensor
- 10 bar absolute 4-20mA natural gas pressure sensor for high temperature research use
- Measuring steam pressure up to 10bar with analog/digital output
- 300 degC tolerant pressure transmitter for pressures up to 100 kPa g
- 10psig 4-20mA oily wastewater pressure sensor with hi-temp protection for tank level gauging use
- 180°C UHT milk compatible pressure transmitter
- 320 degF steam temperature, 100 psi pressure transmitter
- Saturated steam pressure transmitter for 185psi max pressure & 392F max temp
- 10 barg range 4-20mA output steam pressure sensor for food processing use
- 5 barg 4-20mA output pressure sensor for steam sterilization up to 150C/300F
- Hot oil pressure transmitter & display to read up to 5 bar at 300degC max
- Alternative 200 bar melt pressure transmitter with T/C
- Minus 30 inHg 4-20mA air pressure sensor for measuring vacuum in a sealed tank heated to 350F
Find out more about High Temperature Pressure Transmitters to determine which product options and capabilities will best meet your application requirements.
Product Help
Specifying pressure transmitters for high temperature use
Process temperature
What will be the maximum process temperature reached in your application?
The sensor technology utilised in pressure transmitter has an operating temperature range which is adequate for most applications, but there are some which will require additional components to protect the sensor from heat damage.
Cooling mechanism
Typically the design approach is to reduce the temperature in the vicinity of the pressure transmitter by incorporating a mechanical cooling assembly to dissipate the heat.
The cooling assembly maybe filled with oil and separated from the process media by an isolation diaphragm.
Alternatively the cooling assembly can include hollow tubing shaped to increase heat transfer, which causes the process media allowed through, to reduce to a much lower temperature.
The choices of cooling mechanism fall into the following categories:
Add-on cooling adaptor
Add-on compact process media filled cooling adaptor with coiled capillary, hollow discs or fins for increasing surface area to act as heat sink for medium temperature protection.
Integral cooling element
Integral oil-filled isolation diaphragm seal shaped to increase surface area between sensor and isolation diaphragm to increase efficiency of cooling and provide for high temperature protection.
Capillary tube cooling
Integral oil, mercury or other fluid filled capillary with a long length and small diameter for extra cooling in very high temperature processes.
Ambient temperature
What will be the range of temperatures surrounding the pressure transmitter where it is installed?
This is an important consideration when dealing with high temperature processes or surrounding environments.
In applications where the process temperature is high, it is possible to use a pressure transmitter with a built-in cooling mechanism. This cooling mechanism often relies on the conduction and dissipation of heat to the surrounding air around the pressure transmitter. Therefore it is essential the ambient air temperature is lower than the process temperature. Also since the rest of the pressure transmitter connected to the cooling component is not protected from high temperatures, the ambient temperature should be lower than the device operating temperature range. This will ensure an efficient heat sink and protect the electronic components from thermal damage.
When it is not possible to install the pressure transmitter in a lower temperature environment, it is then necessary to use one that is completely protected from high ambient or process temperatures. These types of high temperature pressure transmitters do not need any cooling mechanism, and all components including the sensing technology, conditioning electronics, solder, adhesives, connectors and cables are rated to the maximum operating temperature.
Checklist for high temperature pressure transmitter requirements
Define your high temperature pressure transmitter requirements using this checklist:
- Process temperature?
- Cooling mechanism?
- Ambient temperature?
- Pressure range?
- Output signal? 4-20mA
- Electrical connection?
- Process connection?
- Process media type?