High Temperature Pressure Sensor for pressure measurement of high temperature gas or liquid. Such as steam pressure. High temperature up to 800 ℃.

SI-512H High Temperature Pressure Sensor

High Temperature Pressure Sensor with high temperature resistant pressure core or sapphire core as pressure measurement material. After high reliability amplifier circuit and precise temperature compensation. The absolute or gauge pressure of the measured medium is converted into standard electrical signals such as 4 ~ 20mA, 0 ~ 5VDC, 0 ~ 10VDC. It is also widely used in industry. Collect pressure signals at the points of some high-temperature steam and fluid pipes.

Sino-Inst is a manufacturer of high temperature pressure sensors in China. Committed to the manufacture, sales and engineering support of high temperature pressure sensors.

Features of High Temperature Pressure Sensor

  • High temperature -40 ℃ ~ 200 ℃; -40 ℃ ~ 400 ℃; -40 ℃ ~ 600 ℃; -40 ℃ ~ 800 ℃
  • Stainless steel integrated structure can adapt to harsh environments
  • Small size, high accuracy, high cost performance, high stability
  • -100KP ~ 0 ~ 100MPA
  • Various standard signal output options, convenient for user debugging
  • Lightning protection, electromagnetic / radio frequency interference resistance
  • Wide power supply range (5 ~ 40V)
  • With zero point, full scale adjustable
  • SS304 stainless steel housing structure

Specifications of High Temperature Pressure Sensor

  • Range: -100KPa ~ 0 ~ 100MPa optional
  • Accuracy: ± 0.5% FS (composite error including non-linear repeatability hysteresis)
  • Output signal: 4 ~ 20mADC (two-wire system), 0 ~ 10mADC, 0 ~ 20mADC, 0.5 ~ 4.5VDC, 0 ~ 5VDC, 1 ~ 5VDC, 0 ~ 10VDC (three wire system)
  • Power supply voltage: 5 ~ 40VDC (two-wire system), 15 ~ 40VDC (three-wire system)
  • Medium temperature: -40 ℃ ~ 200 ℃ -40 ℃ ~ 400 ℃ -40 ℃ ~ 600 ℃ -40 ℃ ~ 800 ℃
  • Ambient temperature: -30 ℃ ~ 105 ℃
  • Pressure connection: M20 * 1.5 M22 * 1.5 M16 * 1.5 M11 * 1 NPT1 / 4 NTP1 / 2 NTP3 / 8 G1 / 8 G1 / 2 G1 / 4 G3 / 8,1 / 2-20UNF, etc. Other threads can be according to customer requirements design
  • Zero temperature drift: ≤ ± 0.02% FS ℃
  • Range temperature drift: ≤ ± 0.02% FS ℃
  • Compensation temperature: 0 ~ 80 ℃
  • Safety overload: 150% FS ℃
  • Ultimate overload: 200% FS ℃
  • Response time: 5 mS (up to 90% FS)
  • Vibration effect: The frequency is 10 ~ 100KHZ, the acceleration is 10g, all the effects are less than ± 0.1% FS
  • Test medium: Various liquids and gases compatible with 17-4PH stainless steel
  • Housing material: 304 or 316 stainless steel
  • Electrical connection: Hessman 3009 connector
Dimensions-of-high-temperature-pressure-sensor

Read more about: What is a pressure sensor and how it works? 

Applications of High Temperature Pressure Sensor

High Temperature Pressure Sensor is used in industrial fields such as water plants, oil refineries, sewage treatment plants, building materials, light industry, machinery, etc. to achieve the measurement of liquid, gas and vapor pressure.

Application examples:

  • Industrial field process pressure detection
  • Laboratory pressure calibration system
  • Nautical and shipbuilding
  • Aviation and aircraft manufacturing.
  • Air separation equipment and thermal power units

Extended reading: High Pressure Flow Meters for Liquids-Steam-Gas

Cooling Element

Cooling-Element-of-high-temperature-pressure-sensor

Can pressure transmitters measure high temperature media?

Customers often have such a question. So can pressure transmitters really measure high temperature media? The answer is yes.Of course, the pressure transmitter cannot directly contact the high-temperature medium. Prolonged contact with high-temperature media can easily damage the pressure sensor. Usually when measuring high temperature media, the pressure transmitter will be equipped with a stainless steel heat sink device. Avoid direct contact between the medium and the transmitter. A condensing tube can also be added on the basis of the heat sink to reduce the damage to the transmitter caused by excessive temperature.

Read more about: What is industrial pressure transmitter?

High temperature-resistant pressure transmitters use Hessman connectors to keep the signal stable, the circuit design is constantly optimized, and the anti-interference ability is strong. The heat sink and core are fully combined to work normally at high temperatures.

High temperature-resistant pressure transmitter:

  1. Adding stainless steel heat sink on the basis of standard type and industrial type is high temperature type product, divided into standard high temperature type and industrial high temperature type. 4 ~ 20mA output, voltage 0 ~ 5V / 1 ~ 5/0 ~ 10V, etc.
  2. Standard high temperature type, all stainless steel structure, small size and easy installation. High temperature industrial type, cast aluminum housing, terminal output and simple wiring. When the current output is required, a digital display meter can be optionally provided.
  3. Standard high temperature type, high temperature industrial type, optional intrinsically safe explosion-proof box isolation and explosion-proof.
  4. The computer compensation technology is adopted, and the temperature drift is small. ± 0.01% FS / ℃ integrated circuit, high precision, strong anti-interference ability.
  5. Applied in petroleum, chemical, steel, light industry, machinery and equipment, energy constant pressure variable frequency water supply and other industries pressure detection. When the temperature is quite high, a condenser tube or a condenser is still used.

Add-on High Temperature Adapter

Add-on High-Temperature Adapter can also be called a pressure buffer tube. The role is to cool the measured medium and smooth the pressure fluctuations. When the pressure of the liquid, steam, and condensable gas whose temperature is higher than 60 ℃ is detected, the source port of the pressure sensor installed locally shall have a ring-shaped condensation ring or a U-shaped condensation bend.

Add-on High-Temperature Adapter is mainly used in a high-temperature environments with permeable or saturated steam. Avoid direct contact with high-temperature fluid inside the pressure sensor.

Read more about: Steam pressure transmitter-Pressure measure on steam pipeline 

Add-on-High-Temperature-Adapter
Pressure and Temperature Sensor-Dual function
Ceramic Pressure Sensor
Ultra-High Pressure Senors
Liquid pressure sensor

pressure sensor for steam

Pressure transmitters are used for steam metering and pipeline monitoring.

The temperature in the steam pipeline is generally relatively high. The low is more than one hundred degrees Celsius, and the high is two to three hundred degrees Celsius.

The start and stop of the valve will also cause the pressure in the pipeline to fluctuate.

Today we are going to talk to you about what to pay attention to when measuring the pressure of steam pipes?

When measuring the pressure of the steam pipeline, a high-temperature pressure transmitter should be selected due to the high-temperature environment.

In fact, in steam conditions, it only needs to pass through the surface bend (condensation tube). After passing through the elbow, the steam will condense into water at the elbow. Insulate the temperature, so as to achieve a good cooling effect.

The pressure transmitter after passing through the elbow on the pipeline with insulation layer is basically at room temperature. If it is not insulated, the high temperature will rise, causing the temperature of all objects above the pipeline to rise.

Advantages: The use of bends can optimize the cost, and is compatible with the product.

The material selection of a good bend is high. It is thicker and more durable than the general watch bend on the market. Good pressure resistance. The price will be slightly more expensive.

Extended Reading: FMCW Radar for High Temperature Level Sensor

The above-mentioned pressure transmitter diaphragm damage is due to the phenomenon of water hammer.

The valve suddenly opens or closes, causing the pressure in the steam pipe to fluctuate suddenly.

Especially when the valve is opened, huge pressure fluctuations will cause the pipeline to vibrate violently. Even shocking.

The pressure transmitter will also withstand huge pressure in the pipeline. In severe cases, the core may be dented or even burst.

The prevention method is to install safety valves and accumulators, and open and close the valves slowly. Install a trap at the high point of the air discharge valve at the low point.

Some pressure transmitters will be protected by dampers and baffles.

The damper is a copper piece with a 4mm outer wire and a T-shaped thin through-tube structure inside. It can prevent the medium from directly impacting the diaphragm.

The baffle is placed on the front end of the core before assembling the core. Metal plate with holes. It also prevents the medium from directly impacting the diaphragm.

In the hydraulic machinery industry, there are a lot of equipment for pressure transmitters, which are often used for pressure control.

But hydraulic machinery is very prone to pressure shock when it is working. The shock pressure will far exceed the normal pressure, causing damage to the pressure transmitter.

In this case, some pressure transmitters have internal wires and dampers in the standard pressure port. Can effectively alleviate the impact.

The hydraulic and mechanical pressures are all above 10MPa. Generally, the transmitter above 10MPa should be equipped with a damper as standard. If the pressure shock is severe, a baffle can be added to alleviate the shock.

Extended Reading: Electronic Pressure Switch for Air Compressor

Frequently
Asked
Questions

A high pressure sensor is a device that converts the measured electrical parameters into DC current, DC voltage and isolates and outputs analog or digital signals.

The high pressure sensor usually adopts the selected foreign patch technology. The working principle is that the pressure of the measured pressure acts directly on the sensing piece of the sensor. The sensing piece produces a micro-displacement proportional to the pressure, and the resistance value of the sensor changes. And use the electronic circuit to detect this change. And convert and output a standard measurement signal corresponding to the pressure.

High temperature sensor is a kind of pressure sensor commonly used in industrial practice. It is widely used in various industrial automatic control environments.

The working principle of the high temperature sensor: the pressure of the wind pressure sensor acts directly on the diaphragm of the sensor. The diaphragm produces a micro-displacement proportional to the pressure of the medium. The resistance of the sensor changes. And the electronic circuit is used to detect this change. And The conversion outputs a standard signal corresponding to this pressure.

Extended reading: High Temperature Flow Meter

In HVAC systems, end sensors and controllers are the key components to ensure the smooth operation of the entire system and achieve energy-saving effects.

In the central air conditioner, the filter is used to filter the dust and impurities in the ventilation duct. The pressure sensor at the indoor vent is used to monitor the air pressure difference between the two ends of the filter at the air outlet. With the accumulation of time, the dust on the filter will accumulate more and more. It will gradually affect the air circulation of the filter. When the air circulation is not smooth, the air pressure difference between the two ends of the filter will continue to increase.

When the pressure sensor senses the pressure change, the upper computer receives the signal from the pressure sensor. When the signal value reaches the alarm point, it will start to alarm. It reminds the cleaning staff to replace or clean the filter. In addition to this role, the pressure sensor is also used to participate in the control of the air supply volume of the air outlet.

Extended reading: Miniature Pressure Switch

Related Blogs

What is Static Water Pressure?

What Is Static Water Pressure? Definition of Static Water Pressure: Static Water Pressure refers to the pressure on water when it is stationary or moving in a straight line at a constant speed. Static Water Pressure is also called hydrostatic Read More

The Myth of Ceramic Pressure Sensor

What is a ceramic pressure sensor? Ceramic pressure sensors are sensor diaphragms made of ceramic alumina (Al2O3). Ceramic is a material with high elasticity, corrosion resistance, wear resistance, impact, and vibration resistance. Ceramic has good thermal stability characteristics. High-temperature sintering Read More

Static Pressure/Hydrostatic Pressure Transmitter

The Hydrostatic Pressure Transmitter measures the hydrostatic pressure exerted by a hydrostatic head. Use these hydrostatic pressure transmitters to measure the liquid level in storage tanks, processing vessels, collection tanks, pump inlet heads. And other applications use hydrostatic pressure to Read More

How to convert a 4-20mA to 0-10V /1-5V signal?

4-20mA to 0-10v voltage, this is I/V conversion. That is current-voltage conversion, usually used for long-distance signal transmission in the industry. How to convert a 4-20mA to 0-10V /1-5V signal? There are two methods: one is to do it yourself Read More

What does intrinsically safe mean?

Intrinsically safe type is an explosion-proof type of electrical equipment. When purchasing electrical equipment, do you often hear about intrinsic safety? For example, when ordering pressure transmitters or flow meters. Intrinsically safe instruments are intrinsically safe instruments. Also called safety Read More

What does SCADA stands for?

What does SCADA stand for? SCADA is the abbreviation of Supervisory Control And Data Acquisition. Namely data acquisition and monitoring control system. SCADA system is also called monitoring configuration software, which is widely used in enterprise equipment management of equipment Read More

What is a pressure sensor?

What is a pressure sensor? A pressure sensor is a device that senses a pressure signal and converts the pressure signal into a usable output electrical signal according to certain rules. Pressure sensors have a variety of structural types. Common Read More

Cryogenic Pressure Transducers

Cryogenic pressure transducer for low temperature pressure measurement.  -196℃~+125℃、-260℃/-350c(especial). Sino-Inst offers a variety of Pressure Sensors for pressure measure and control. If you have any questions, please contact our sales engineers. What is Cryogenic pressure transducer? The Cryogenic pressure sensor Read More

High Frequency Dynamic Pressure Sensor

Dynamic pressure sensor, the transmitter is a high frequency sensor. Sino-Inst offers a variety of  Dynamic Pressure Sensors for pressure measurement. If you have any questions, please contact our sales engineers. Features of High Frequency Dynamic Pressure Sensor Wide measuring Read More

Application Analysis of Intelligent Pressure Transmitter

Intelligent Pressure Transmitter is also called smart pressure transmitter. As far as the composition structure of intelligent pressure transmitters widely used in the market is concerned, it mainly includes devices such as microprocessors, sensors, digital-to-analog converters, and memories. Different devices Read More

Sino-Inst offers high temperature Pressure Sensors/Transducers. A wide variety of  high temperature Pressure sensors options are available to you. Such as free samples, paid samples. Sino-Instrument is a globally recognized manufacturer of high temperature Pressure sensors, located in China. Sino-Inst sells through a mature distribution network that reaches all 30 countries worldwide. Pressure sensors products are most popular in Europe, Southeast Asia, and Mid East. You can ensure product safety by selecting from certified suppliers. With ISO9001, ISO14001 certification.

Request a Quote

Leave a Reply

Your email address will not be published. Required fields are marked *