Description

Detailed parameter table

Parameter name	Parameter value
Product model	P144.R4
Manufacturer	EMERSON
Product category	Pressure Transmitter
Electrical performance	Power supply: 10 – 30 VDC; Power consumption: ≤1.5 W
Physical size	Dimensions: 180mm (height) x 90mm (diameter)
Interface type	HART communication protocol interface; 4 – 20 mA analog output; M20 x 1.5 electrical connection thread
Communication protocol	HART 7 protocol, supports digital communication for configuration and diagnostics
Environmental requirements	Operating temperature: -40°C – 85°C; Humidity: 5% – 95% non – condensing; Protection level: IP67
Installation method	Threaded mounting, flange mounting or bracket mounting
Performance indicators	Measurement range: -1 to 1000 bar (customizable); Accuracy: ±0.075% of span; Stability: ±0.1% of span per year
Expansion capability	Can be integrated with Emerson’s DeltaV distributed control system and other industrial automation systems

Product introduction

The EMERSON P144.R4 is a high – performance pressure transmitter that represents the pinnacle of Emerson’s expertise in industrial measurement and control solutions. As a key component in the industrial automation ecosystem, this pressure transmitter is engineered to provide accurate, reliable, and stable pressure measurement across a wide range of applications. Whether it’s monitoring critical pressure parameters in oil and gas production, chemical processing, or power generation, the P144.R4 plays a vital role in ensuring the smooth operation of industrial processes.

Designed with advanced sensing technology, the EMERSON P144.R4 can precisely measure pressure within a customizable range from -1 to 1000 bar. Its high accuracy of ±0.075% of span and excellent stability of ±0.1% of span per year guarantee consistent and reliable measurement results. The integration of the HART 7 communication protocol enables seamless digital communication, allowing for easy configuration, calibration, and diagnostic operations. With its robust construction and wide operating temperature range, the P144.R4 can withstand harsh industrial environments, making it a trusted choice for industries where reliable pressure measurement is essential for safety, efficiency, and quality control.

EMERSON P144.R4

Core advantages and technical highlights

Exceptional measurement accuracy

The EMERSON P144.R4 stands out for its exceptional measurement accuracy. With an accuracy rating of ±0.075% of span, it can detect even the slightest changes in pressure, providing highly precise data for industrial control systems. This level of accuracy is crucial in applications where small pressure variations can have a significant impact on the quality of the final product or the safety of the production process. For example, in chemical reactors, accurate pressure measurement is essential to maintain the correct reaction conditions, and the P144.R4 ensures that operators have reliable data to make informed decisions.

Robust and reliable design

Built to endure the harshest industrial environments, the P144.R4 features a robust design. It can operate within a wide temperature range of -40°C – 85°C and has a protection level of IP67, which means it is dust – tight and can be submerged in water up to 1 meter for 30 minutes without damage. The high – quality materials used in its construction resist corrosion and mechanical stress, ensuring long – term reliable operation. Whether it’s installed in an offshore oil platform exposed to saltwater and extreme weather or a chemical plant with corrosive substances, the EMERSON P144.R4 can perform consistently, reducing the need for frequent maintenance and replacement.

Advanced communication capabilities

Equipped with the HART 7 protocol, the EMERSON P144.R4 offers advanced communication capabilities. This protocol allows for two – way digital communication over the 4 – 20 mA analog signal, enabling remote configuration, calibration, and diagnostics. Engineers and technicians can easily access the transmitter’s settings and status information using a HART communicator or a control system, reducing the need for on – site manual adjustments. The ability to integrate with Emerson’s DeltaV distributed control system and other industrial automation platforms further enhances its usability, facilitating seamless data integration and process control across the entire industrial network.

Typical application scenarios

In the oil and gas industry, the EMERSON P144.R4 is widely used for pressure measurement in pipelines, wellheads, and storage tanks. It monitors the pressure of oil and gas during extraction, transportation, and storage, ensuring the safe and efficient operation of the entire production process. For instance, at wellheads, accurate pressure measurement helps in optimizing the flow rate of oil and gas, preventing overpressure situations that could lead to leaks or equipment damage. In pipelines, the P144.R4 continuously monitors the pressure to detect any blockages or abnormal changes, enabling timely maintenance and avoiding costly disruptions.

In chemical processing plants, the P144.R4 plays a crucial role in monitoring the pressure within reactors, distillation columns, and other process equipment. It ensures that the pressure remains within the safe and optimal operating range, which is essential for the successful execution of chemical reactions and the separation of components. By providing accurate and real – time pressure data, the pressure transmitter helps operators adjust process parameters, such as temperature and flow rate, to maintain product quality and prevent safety hazards. In addition, the ability to communicate digitally with the plant’s control system allows for automated control and optimization of the chemical processes.

For power generation facilities, the EMERSON P144.R4 is used to measure the pressure of steam in boilers, turbines, and other power – generating equipment. Accurate pressure measurement is vital for maintaining the efficiency of power generation and ensuring the safety of the equipment. In steam turbines, for example, the pressure transmitter helps in controlling the steam flow to the turbine blades, optimizing power output. In boilers, it monitors the steam pressure to prevent overpressure situations that could lead to explosions. The reliable performance and high – accuracy measurement of the P144.R4 contribute to the stable and efficient operation of power plants, reducing downtime and maintenance costs.

EMERSON P144.R4

Related model recommendations

EMERSON P3100S: This model is a more cost – effective option compared to the R4, suitable for applications where a slightly lower accuracy requirement is acceptable. It still offers reliable pressure measurement and basic HART communication capabilities, making it a good choice for less critical industrial processes or small – scale operations.
EMERSON P4000: An upgraded version with enhanced features, the P4000provides higher accuracy (±0.05% of span) and a wider measurement range. It is designed for applications that demand the utmost precision, such as in high – end scientific research facilities or pharmaceutical manufacturing plants where strict process control is essential.
EMERSON P5000A: Specializing in absolute pressure measurement, the P5000Ais ideal for applications where measuring the pressure relative to a perfect vacuum is required. It can be used in semiconductor manufacturing, vacuum packaging, and other processes that rely on accurate absolute pressure readings.
EMERSON P6000DP: A differential pressure transmitter, the P6000DPmeasures the pressure difference between two points. It is commonly used in applications such as flow measurement (by measuring the pressure drop across an orifice plate), filter monitoring, and level measurement in tanks with differential pressure sensors.
EMERSON P8000G: This model features wireless communication capabilities in addition to the HART protocol. It is suitable for applications where wired connections are difficult to install or where remote monitoring in hard – to – reach locations is required, such as in large – scale industrial complexes or environmental monitoring systems.

Installation, commissioning and maintenance instructions

Installation preparation

Before installing the EMERSON P144.R4, ensure that the installation site meets the environmental requirements specified by the product. Select the appropriate mounting method based on the application, such as threaded mounting for direct connection to pipelines, flange mounting for high – pressure applications, or bracket mounting for easy access and installation. Use proper tools to ensure a secure and leak – free connection. Disconnect the power supply and any existing pressure source to avoid electrical shock and pressure surges during installation. Connect the electrical wires to the designated terminals, following the wiring diagram provided in the user manual, and ensure that the power supply voltage is within the specified range of 10 – 30 VDC. Finally, connect the pressure port of the transmitter to the pressure source using appropriate tubing or fittings, ensuring a tight connection.

Maintenance suggestions

For the EMERSON P144.R4, regular maintenance is essential to ensure its long – term reliable performance. Periodically check the status indicators on the transmitter to monitor its operational status, such as power, communication, and error indicators. Use a HART communicator or a compatible control system to perform routine diagnostic checks, including verifying the accuracy of the measurement, checking the integrity of the communication link, and ensuring that the calibration is still within the specified limits. Clean the exterior of the transmitter regularly with a soft, dry cloth to remove dust, dirt, and any corrosive substances that may accumulate over time. In case of any abnormal readings or fault indications, refer to the troubleshooting guide provided by Emerson to identify and resolve the issue. If necessary, perform calibration according to the recommended schedule to maintain the accuracy of the pressure measurement.