One of the most widely used equipment in instrumentation is the Differential Pressure Transmitter .
This transmitter is used when the pressure difference between two points needs to be electrically measured and converted into a measurable signal.
This type of transmitter is also used to measure other parameters such as tank height and flow, and due to their accuracy and reproducibility in measuring fluid levels, they are widely used in industry.
Differential pressure gauges (pressure difference transmitters) have two inputs and measure the pressure difference between two points.
These two inputs are usually marked with the letters H 3 and L 4 on the body of the device so that a high pressure point is connected to the H input and a low pressure point is connected to the L input.
Of course, all barometers require two pressure inputs.
One input is for the pressure we want to measure and the other is for the base pressure.
For absolute pressure, the base pressure inlet is vacuumed and blocked, but in partial pressure gauges the base inlet is left open to be affected by air pressure.
In differential or difference barometers, both inputs are available to the user to select them to connect to the desired location.
The most common technologies used in electronic pressure difference sensors and pressure difference transmitters are strain gauges or capacitive properties.
In these devices, an unknown pressure difference is applied to an elastic object such as a diaphragm or capsule, causing it to deform.
This deformation is measured and converted into a transmissible electrical signal.
Important points in choosing a pressure difference transmitter
When choosing a pressure transmitter for your industrial and refinery project, it is important to choose the right transmitter for your needs.
Various factors such as the pressure difference between two points or even the pressure measurement mechanism in the transmitter can be an important factor in their selection.
With these interpretations, you should consider the following when buying this equipment:
This accuracy is given to you as a number or as a percentage and is usually 0.5% in standard mode.
But you may not need high accuracy in measuring pressure or you may even want to increase the sensitivity of your project.
In this case, you should try to select the accuracy of the pressure difference transmitter at the highest possible level.
Suffering and measuring the pressure range
Do not forget that when using a pressure difference transmitter we want to measure pressure changes according to sensor or sensor changes.
This equipment uses various sensors, commonly known as capsules.
These sensors have a certain ability and capacity to measure a wide range of pressure, and you have to choose the tool according to the pressure difference that you have in your system.
Another factor that you should consider when buying a Yukogawa pressure difference transmitter is the material used to make the device capsule.
Steel is usually used as the main material of the capsule in most devices.
But there may be changes in them that naturally affect the performance of the device and the amount of pressure they measure.
There are various methods for reporting the pressure difference measured in these transmitters, some of which are clockwise and some of which are digital, which send the result in the form of computer data to the control room.
Naturally, smart transmitters have a higher ability to report data, and their accuracy makes us face higher quality and price.
Ability to calibrate the tool
Another factor to consider when buying a pressure difference transmitter is calibrating the instrument in different situations.
The easier it is to calibrate the tool and the faster you can do it, the better it will naturally contribute to the quality of your work and the easier it is for you to use your purchased tool.
Rose Calibration Company in Melbourne, Australia with over ten years of experience provides all calibration, maintenance, and repair services throughout Australia. If you live in Sydney, Melbourne, Adelaide, Perth, Geelong, and Brisbane, you can receive your quote in less than two hours by fill-up the form via the “Booking” link.