Impress Sensors

The use of pressure transmitters under extreme conditions

August 7th, 2010

The promotion of just one pressure sensor technology by the manufacturer leads to an overlap in the capabilities of different transmitters. The capabilities of the pressure sensors have advanced in the recent years. You can now find pressure sensors for all types of applications.

Pressure transmitters monitor, channelise and maintain the pressure level in all types of equipment. Pressure transmitters alert the operator of any load on the machine during operation. Based on these readings, the machines can be switched off whenever needed.

The following are some of the applications of pressure transmitters in day to day life.

Construction Equipment

These machines perform the heavy duty tasks which are involved in the construction business. The load which gets built up in these machines can sometimes exceed the recommended value. Pressure transmitters play an important role to monitor this pressure. It triggers an alarm when the pressure exceeds a certain value. These transmitters are installed in the hydraulics systems and the engines of the machines.

Monitoring Water Pressure

The use of sturdy and versatile pressure transmitter is ideal as these devices are often exposed to the harsh and volatile conditions of water pressure. Pressure transmitters in this application are exposed to water thrashing and cavitations. This mainly happens when these devices are placed in a water line and the flow of water is stopped

Pressure transmitters are used in all sorts of devices. It is an important part of our day to day life. For this purpose, it is important to check the application for pressure transmitters and according to those requirements, use devices which can withstand specific conditions.

Enhance pressure monitoring with wireless pressure transmitters

August 3rd, 2010

Manufacturing industries use various kinds of heavy machinery and equipment on a daily basis. As careful as employees are, there are still possibilities that the mechanisms can go haywire and cause damage to the machines and those people nearby. The good news is that problems like these can be kept at bay with the use of devices like pressure transmitters. These are used for monitoring and controlling pressure levels within machines to create a safe working environment.

Uses of wireless pressure transmitters

However, pressure transmitters can fall short of uses in applications like determining bottom-hole pressure. Fortunately, this can be solved thanks to the introduction of wireless pressure transmitters. These devices communicate with control systems through a means of wireless communication. Due to this, wireless pressure transmitters can be used to control different kinds of remote equipment. Besides this, they can also be used for checking liquid and gas pressure in machinery, leak testing and measuring the flow of gases and liquid.

Benefits of using wireless pressure transmitters

Wireless pressure transmitters offer a number of benefits like easy networking, enhanced signal to noise ratio, circuit integration and multi-point sensing. Many wireless pressure transmitters have the ability to create and transmit information from radio signals to a computer or control panel.

An excellent feature of wireless pressure transmitters is that they can measure pressure both directly and indirectly. These transmitters can measure different kinds of variables like changes in gas thermal conductivity and the flow of ions. With a wireless pressure transmitter network, a computer can carry out monitoring and perform analysis. This makes industrial processes more efficient and minimises costs.

Pressure transmitters to take care of your machinery

July 27th, 2010

No one would want their machinery to get damaged due to excess pressure. A pressure transmitter is a device that monitors, channelises and maintains the pressure level in equipment. Heavy machinery cannot run for an extended period of time, so it has to be shut down allowing it to cool and ease the load.

Pressure transmitters contribute a lot to this ease down period by giving regular signals to the operator about the load on the machine. Based on these readings, the machines can be switched off whenever possible. This process ensures that the machinery does not break down or burn out.

The use of pressure transmitters in manufacturing

Certain equipment needs pressure transmitters for the manufacture of some products. These products can be moulded into various shapes by the application of pressure. The amount of pressure that needs to be applied can be controlled by the use of pressure transmitters.

Application of pressure transmitters in motor engines

The application of pressure transmitting mechanics in motor engines is not uncommon. Certain types of motor engines cannot function without the application of a pressure transmitting mechanism.

Other uses of pressure transmitting mechanics

For the measurement of air and gas pressure, specially designed, inexpensive tubes are sometimes put in place. These tubes are used for monitoring the pressure in tyres. These transmitters can also be used for the measurement of the depth and thickness of the ice and are vastly used by environmentalists.

How pressure transmitters work

June 13th, 2010

Pressure transmitters are commonly used for industrial processes and they are used to gauge the pressure and control the operation of industrial equipment. Pressure transmitters can sense physical variables such as pressure and flow-rate. This can be brought into existence due to the differential measurements.

A pressure transmitter contains a pressure sensor that can process fluids and calculate an output. This output will be the answer to pressure applied on it by the fluid.

What is an isolation system? – A pressure sensor can combine with a process fluid due to an isolation system. The isolating system comprises of an isolation diaphragm. During this process, there is no physical contact between the isolation fluid and the process fluid. This extends from the pressure sensor to the isolation diaphragm.

Isolation diaphragm - An isolation diaphragm is important as it separates the pressure sensor from any corrosive process fluids. During this process, pressure passes from the isolation diaphragm to the sensor. All these pressures pass through an incompressible isolation fluid which is then carried in the passageway.

Differential pressure
– The pressure difference between two process pressures is measured by a differential pressure transmitter. A differential pressure transmitter requires two connections to the process fluid. This type of pressure transmitter measures the gage or absolute pressure of a processing fluid. It needs a single union with the process fluid chamber. This differential pressure transmitter comprises of a main body that has an internal enclosure. This internal enclosure contains a measurement chamber which can hold a pressure transducer. Differential pressure sensors are mainly used to measure small pressure differences over an absolute pressure range.

Pressure transmitters – Sensing devices for measuring the pressure of gases or liquids

June 11th, 2010

Pressure transmitters are used extensively in industrial process control systems for sensing physical variables of the process fluid (flow, pressure, flow rate) by the virtue of more than one differential measurement. A pressure transmitter comprises of a pressure sensor that is coupled with a process fluid. In response, pressure sensors also offer an output to the pressure applied by the fluid process.

Two types of pressure transmitters

Pressure transmitters are available in two different types. Pressure sensors measure the pressure of a fluid process using an isolation system. The isolating system can include an isolation fill fluid that extends between the pressure sensor and isolation diaphragm and an isolation diaphragm that remains in physical contact with the fluid.

Usually the isolation diaphragm separates the pressure sensor from corrosive fluid process that is being sensed. Often, pressure is transferred from the isolation diaphragm onto the sensor through an incompressible separate fluid carried in a passageway.

On the other hand, the second type of transmitter measures absolute pressure of the fluid process. It uses a single coupling to measure the fluid process. A differential pressure transmitter is comprised of a main body that includes a measurement chamber and accommodates a pressure transducer. It also measures a relatively small pressure difference over a fairly wide absolute pressure range.

If you want to translate the low-level pressure outputs into higher level signals, then pressure transmitters are the perfect devices.

Pressure transmitters – What are their uses and applications?

June 10th, 2010

Pressure transmitters monitor many activities in various manufacturing facilities, general production control, and marine research. They are also a great way of maintaining safety levels.

While monitoring pressure within an industrial unit, a pressure transmitter helps to accomplish two objectives.
Firstly, the amount of pressure that is applied to a part of the process required to attain the desired result is checked by the pressure instruments. In other modern applications, a pressure transmitter may be used to ensure that no machinery exceeds a set level of pressure that is outside the safety levels for the operators. If any machine malfunctions, the operator or control system is alerted by pressure transmitters, who in turn can shut down the machinery thus averting an accident.

Pressure transmitters can also be used to measure liquid pressure that can be used in the care and maintenance of expensive equipment. An automobile uses oil as a liquid required for operation. In order for the vehicle to function properly, oil pressure has to be maintained at a particular level. Diaphragms often connected to a variable resistor act as a monitor for oil pressure in the engine. This allows the resistor to regulate the voltage intensity and to maintain the balance between voltage and oil pressure. It is due to this low oil pressure, the balance is not achieved and the oil light will illuminate. This light warns the operator that it is time to check the oil level before the engine is damaged.

Pressure transmitters ensure that machinery functions properly, as well as alerting the user if the pressure rises to dangerous levels.

Maintain the pressure levels of industrial equipment with the help of pressure transmitters

June 4th, 2010

Pressure transmitters are a type of equipment that is used to maintain, observe, channelise and monitor pressure levels in heavy industrial machinery. In heavy industry, such pressure indicators and transmitters are used to monitor the level of pressure during a given task performed by a mechanical process.

In some cases, pressure transmitters are used in machinery that is used for manufacturing impressed moulded cartons and packaging. With the help of pressure transmitters, the products can be moulded into their desired shapes by applying a certain degree of pressure.

Simple mechanical instruments like engines also require pressure-transmitting mechanics as a part of their functional requirements. This includes needing a certain amount of pressure to be maintained for the engine to work correctly engine.

Hence, pressure transmitters are a necessary device when it comes to monitoring, observing, maintaining and providing warnings related to high-pressure levels. Pressure transmitters also help to keep a check on the functionality and performance of a given mechanical process.

Pressure transmitters are used in the oil, gas and power generation industries.

Pressure transmitters and their industrial applications

June 3rd, 2010

Pressure transmitters are used for various monitoring activities that are necessary in places such as marine research facilities, manufacturing facilities, and general production control.

A pressure transmitter can be used to monitor pressure within stipulated limits and will help you attain specific goals.

Pressure transmitters help to monitor the amount of pressure applied in a process. This is done to achieve a predetermined result. If too much or too little pressure is applied to a product, it may render the product useless or unstable. Hence, there is a need for constant measurements of the pressurised environment. This will help to rectify any problems or errors that occur while the pressure is being applied.

A pressure transmitter can be used for other manufacturing processes that require constant regulation. This is done to ensure that the machines do not generate any excess pressure. If the pressure levels are under the stipulated level, these machines are considered safe to use.

If such a machine malfunctions, it could cause the pressure to rise beyond acceptable levels. In such cases, a pressure transmitter will alert the control system that in turn can take the necessary steps to shutdown the equipment.

Why are pressure transmitters so important?

June 2nd, 2010

Pressure transmitters are used to measure the pressure of liquids and gases. These are very important in industry as they help to regulate the pressure in a contained environment.

At times, pressure levels in some machines can either drop or rise at an alarming rate. If this happens, it can lead to a defective product that will result in a loss. By installing a pressure transmitter, companies can regulate the pressure of their machine in real-time and the pressure transmitter can also alert the user or control system if the pressure reaches a dangerous level.

Measuring liquid pressure is great application of a pressure transmitter. This can prove beneficial when it comes to maintaining your expensive equipment. Some automobile companies use pressure transmitters to check and alter the pressure in their engines.

Pressure transmitters are available in different types that can cover different ranges of pressure and the different situations where they may be fitted. In short they are so important because they help to ensure the correct functioning of the machine and provide a warning when the pressures reaches an unsafe level.

Distinguishing pressure transducers and transmitters

May 28th, 2010

Any device that converts an applied pressure into an electrical signal is known as a pressure transducer. The different types of pressure transducer developed include thick film, thin film and semiconductor strain gauge, etc. All these sensing technologies are transducers and provide the electrical signal of a millivolt. This varies when connected to an appropriate power supply and if there is a change in pressure.

Characteristically, the primary sensing element generates a pressure transducers output signal. As it is difficult to attain fixed electrical tolerances during manufacture, it becomes essential to add a circuit and recompense for errors over the temperature range.

It is possible to opt for pressure transducers without other electronics, which are known as pressure capsules or headers, used by instrument manufacturers who use their own micro-electronics for the pressure transducer.

A pressure transmitter, on the other hand, is simply a pressure transducer with extra electronics to send out an output signal. In the past, pressure transmitters were usually found in large processing plants; also the sensors used were relatively expensive and heavier. In recent years, some industries have chosen a pressure transmitter which gives 4-20mA output as it only needs two wire connections. The solid-state electronic technology has reduced in terms of the size and cost of these pressure sensors. It has now become difficult to differentiate between a pressure transducer and transmitter by size and shape.

One of the main benefits of pressure transmitters and pressure transducers with a high voltage output is that they add in zero & span adjustment potentiometers which allow for the pressure sensors to be easily calibrated.


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