Measurement Performance

Example

The flowmeter is installed and proved for the first time. The flowmeter

 

mass measurement is 250.27 lb; the reference device measurement is

 

250 lb. A mass flow meter factor is determined as follows:

 

250

 

MassFlowMeterFactor = 1 ⋅ ----------------- = 0.9989

 

250.27

 

The first mass flow meter factor is 0.9989.

 

One year later, the flowmeter is proved again. The flowmeter mass

 

measurement is 250.07 lb; the reference device measurement is

 

250.25 lb. A new mass flow meter factor is determined as follows:

 

MassFlowMeterFactor = 0.9989 ⋅ 250.25----------------- = 0.9996

 

250.07

 

The new mass flow meter factor is 0.9996.

 

 

10.5Performing density calibration

Density calibration includes the following calibration points:

•All sensors:

-D1 calibration (low-density)

-D2 calibration (high-density)

•T-Series sensors only:

-D3 calibration (optional)

-D4 calibration (optional)

For T-Series sensors, the optional D3 and D4 calibrations could improve the accuracy of the density measurement. If you choose to perform the D3 and D4 calibration:

•Do not perform the D1 or D2 calibration.

•Perform D3 calibration if you have one calibrated fluid.

•Perform both D3 and D4 calibrations if you have two calibrated fluids (other than air and water).

The calibrations that you choose must be performed without interruption, in the order listed here.

Note: Before performing the calibration, record your current calibration parameters. If you are using ProLink II, you can do this by saving the current configuration to a file on the PC. If the calibration fails, restore the known values.

You can calibrate for density with ProLink II.

10.5.1Preparing for density calibration

Before beginning density calibration, review the requirements in this section.

Sensor requirements

During density calibration, the sensor must be completely filled with the calibration fluid, and flow through the sensor must be at the lowest rate allowed by your application. This is usually accomplished by closing the shutoff valve downstream from the sensor, then filling the sensor with the appropriate fluid.

Compensation

Measurement Performance

Troubleshooting

Defaults

Configuration and Use Manual

87

Page 94 Page 96
Page 95
Image 95
Emerson Process Management 1500 Performing density calibration, Preparing for density calibration, Sensor requirements
Page 94 Page 96

1500 specifications

Emerson Process Management 1500 is a cutting-edge distributed control system designed to enhance operational efficiency, safety, and reliability in industrial processes. Renowned for its robust architecture and scalable features, the 1500 system caters to various sectors, including oil and gas, pharmaceuticals, chemicals, and utilities.

One of the standout features of the Emerson 1500 is its modular design, allowing users to customize and scale the system according to their specific needs. This flexibility ensures that operations can grow and adapt without requiring a complete system overhaul. The control system supports a range of I/O modules, enabling integration with various field devices and technologies.

The Emerson 1500 employs advanced control algorithms to optimize process performance. This includes model predictive control (MPC) and multivariable control, which enhance the ability to manage complex processes through predictive analytics. This predictive capability not only improves operational efficiency but also reduces downtime and maintenance costs.

In addition to its advanced control features, the 1500 system is known for its user-friendly interface. Operators can easily navigate the system through intuitive graphics and dashboards, allowing them to monitor processes in real time. This ease of use significantly reduces training time and improves response times during operational changes or emergencies.

Security is a critical concern for modern industrial control systems, and the Emerson 1500 addresses this with a multi-layered security framework. This includes secure communications, robust authentication, and access controls, ensuring that only authorized personnel can interact with the system.

The Emerson Process Management 1500 also emphasizes interoperability, supporting various communication protocols such as Ethernet/IP, Modbus, and HART, facilitating seamless integration with existing infrastructure. This capability is particularly advantageous for organizations looking to modernize their systems without entirely replacing legacy equipment.

Furthermore, the system supports advanced data analytics and cloud connectivity, allowing organizations to leverage big data for predictive maintenance, performance benchmarking, and decision-making processes. By harnessing the power of data, users can achieve greater efficiencies and drive continuous improvement across their operations.

In summary, the Emerson Process Management 1500 is a versatile and advanced distributed control system characterized by modularity, advanced control features, user-friendliness, robust security, interoperability, and data analytics capabilities. Its comprehensive approach ensures that industries can not only meet current operational demands but also prepare for future challenges in an ever-evolving landscape.
Top Page Image Contents