Choosing the correct type of pressure measurement device is critical to good process control, equipment integrity and safety of operation. Round-the-clock process operation is not a rare condition in Qatar and can be found in industries like oil, gas, petrochemical, manufacturing, power generation, water treatment and marine industries. Therefore, when choosing a pressure transmitter it is important to consider the actual application, rather than just the price of the Pressure Transmitters. ServeGas is a supplier of instrumentation products such as pressure transmitters to the energy and process industries in Qatar.
Pressure Measurement: What is it and why is it important?
Pressure Measurement: The measurement of pressure of gas or liquid in a system. Industrial pressure transmitter refers to the pressure sensors that transform the value of force into an electric signal which is then tracked by management systems like PLC and DCS systems. Advanced transmitters have the ability to monitor the process continuously and assist the operator in noting a change in operating conditions.
With the correct device a pipeline, vessel, pump, compressor, or process equipment, and any other industrial system where it is important to keep the pressure within limits, can be monitored.
1.Identify the Required Pressure Type.
The first consideration is the type of pressure that needs to be measured. Industries may need a facility to:
Gauge pressure: Pressure above the ambient (atmospheric) pressure.
Absolute pressure – measured relative to a vacuum reference.
Differential pressure (DP) – is the difference between two pressure points.
Vacuum pressure – pressure below atmospheric pressure.
Knowing the process measurement needs can help to avoid misusing the instrument and wasted replacement expenses.
2.Pressure Range and Accuracy
Measuring range of the transmitter should correspond with the operating pressure, and an adequate measuring margin should be guaranteed. Before twenty-four hours, accuracy requirements should also be laid down while purchasing.
If the applications are critical, the specification must take into account the accuracy, repeatability, stability and long-term performance of the products as well as the initial Pressure Transmitter price. Calibration providers also work with pressure transmitters, pressure gauge, pressure calibrators and other pressure instrumentation showing how important it is to keep pressure instruments accurate during its useful life here in Qatar.
3.Take into account Process Conditions and Temperature.
High ambient temps and challenging operating conditions can be encountered at Qatar’s industrial installations. Selected pressure transmitters should then be compatible with the process temperature, environment, vibration, moisture, etc., which are designated by the manufacturer.
In hazardous industrial areas, the necessary certification and protection should be double checked prior to installation.
4.Evaluate Process Media and Wetted Materials
The material in contact with the process fluid must be able to handle the measured fluid. There are a number of different chemicals, hydrocarbons, corrosive fluids, steam, gases and other materials that will have different material requirements.
Check the type of process medium, the working pressure range, the temperature, connection type, contact material with the medium, and necessary environmental protection requirements with the supplier or instrumentation engineer before purchasing.
5.Determine Output and Control-System Compatibility
There is a possibility that existing automation systems may need to communicate with the industrial pressure transmitters. Frequently, the issue of compatibility with a 4–20 mA signal is raised, and smart instruments can offer digital communication and diagnostics as well. In addition to PLC automation, HMI and SCADA, pressure transmitters are another type of instrumentation which ServGas recognizes in its instrumentation portfolio.
Why do pressure instrument calibration play an important role in industry?
Calibration is a check of an instrument to determine if it is within the proper range of accuracy. Measurement drift can be caused due to temperature change, process change or long term operation. Regular calibration may then help to ensure accurate readings, process control, safety and documented quality requirements.
The industrial calibration providers in Qatar provide calibration service for the pressure transmitter and other pressure instruments including Traceable calibration services. Other services that ServeGas offers include pressure gauge calibration, pressure transmitter calibration, digital pressure indicator calibration, pressure calibrator calibration and dead weight tester calibration.
What Should Qatar Industries Consider Before Purchasing Pressure Instruments?
Outline the pressure measurement requirement, the pressure range, the accuracy to be attained, the temperature at which the pressure is to be measured, the compatibility with media in question, the connection type, the desired output signal, the conditions to be expected from the environment, certifications required, calibration specifications and maintenance expectations before asking for the quotation. By comparing the full technical specification along with the PT’s price gives a reliable basis for procurement decision as opposed to a stand-alone price comparison.
Choosing an instrumentation supplier who has experience with the processes of Qatar can make specification, installation, calibration and support an easy process. ServeGas offers instrumentation products and solutions used in the fields of energy, manufacturing, petrochemicals and maritime.