There are significant differences between multivariable pressure transmitters and traditional pressure transmitters in many aspects, mainly reflected in the measurement capability, function integration, use efficiency and cost effectiveness. Here are the specific differences:
1. Measurement ability
Multivariable pressure transmitter:
Ability to measure multiple parameters simultaneously, such as static pressure, pressure difference, density, flow rate, temperature, volume flow rate, instantaneous/cumulative mass flow rate, etc.
Measurement solutions are provided with a variety of built-in flow sensor databases and integrated sensors.
Traditional pressure transmitters:
It mainly measures a single pressure parameter, or only supports the measurement of a limited number of parameters.
Multiple devices are required to complete multi-parameter measurement tasks.
2.function integration
Multivariable pressure transmitter:
Integrated pressure difference, pressure, temperature and other sensors, the function is equivalent to the sum of three field transmitters and flow integrators.
Provide compensation integration, data backup record, output/communication/control/alarm and other functions.
Traditional pressure transmitters:
The function is relatively simple, mainly focusing on the conversion and output of pressure signals.
For multi-parameter measurements and complex system control, additional equipment and system support are required.
3. Use efficiency
Multivariable pressure transmitter:
Direct output of instantaneous or cumulative traffic, more convenient to connect the distributed control system (DCS), save system resources.
The efficiency and accuracy of field installation are improved, and the complexity and failure points of equipment are reduced.
Traditional pressure transmitters:
The need for parameter measurement and data transmission through multiple devices increases the complexity and maintenance difficulty of the system.
When working with multi-parameter data, additional data processing and analysis steps may be required.
4.cost-effectiveness
Multivariable pressure transmitter:
It can replace multiple single-parameter transmitters and flow integrators, reducing equipment costs and procurement costs.
Long-term operating costs are further reduced by simplifying system design and maintenance.
Traditional pressure transmitters:
In multi-parameter measurement applications, multiple devices need to be purchased, increasing equipment cost and space occupancy.
Maintaining multiple devices requires more time and resources, increasing long-term operating costs.
5. Application Scenarios
Multivariable pressure transmitter:
It is more suitable for complex systems that need to measure multiple parameters at the same time, such as flow, temperature and pressure integrated control systems in petroleum, chemical, electric power and other fields.
Traditional pressure transmitters:
More suitable for a single pressure measurement or parameter requirements are not high occasions, such as simple liquid level monitoring, pressure monitoring and so on.
In summary, the multi-variable pressure transmitter is superior to the traditional pressure transmitter in terms of measurement capability, function integration, efficiency and cost effectiveness, and is more suitable for the modern industry's demand for multi-parameter measurement and automatic control. However, in the specific application, it is necessary to choose the right equipment according to the actual needs.
