Foxboro Transmitters Overview
Foxboro (now part of AVEVA) is a long-standing leader in industrial automation, and its transmitter product line is widely used for measuring and transmitting various process variables such as pressure, temperature, flow, and level. These transmitters are known for their reliability, accuracy, and performance in harsh industrial environments.
Product Detailed Description
Function:
Measure Process Variables: Accurately measure industrial process parameters such as pressure (differential, absolute, gauge), level, flow, and temperature.
Signal Conversion: Convert measured physical quantities into standard electrical signals (typically 4-20 mA or digital signals like HART, Foundation Fieldbus, Profibus PA).
Signal Transmission: Reliably transmit the converted signals to control systems, recorders, or other monitoring devices.
Smart Features: Many modern Foxboro transmitters offer advanced diagnostics, configuration, and calibration capabilities, often accessed through digital communication protocols.
Features:
High Accuracy and Stability: Provide reliable and accurate measurement results.
Robust and Durable Design: Suitable for various harsh industrial environments, including high temperatures, high humidity, corrosive atmospheres, and hazardous areas.
Multiple Measurement Principles: Utilize different sensing technologies (such as piezoresistive, capacitive, RTD, etc.) to measure different process variables.
Digital Communication Capabilities: Support digital protocols like HART, Foundation Fieldbus, Profibus PA, enabling richer data transmission and device management.
Modular Design: Some models feature a modular design for easy maintenance and component replacement.
Self-Diagnostics: Capable of monitoring their own status and reporting potential issues.
Product Parameters
As Foxboro offers a wide variety of transmitters, the following are some general parameter ranges. Always refer to the official datasheet for the specific model:
Measured Variables: Pressure (differential, absolute, gauge), level, flow, temperature.
Measurement Range: Varies depending on the specific measured variable and model. For example, pressure transmitter ranges can be from a few millibars to hundreds of bars.
Output Signal: 4-20 mA, HART, Foundation Fieldbus, Profibus PA.
Accuracy: Typically ranging from ±0.05% to ±0.2% of the measurement span.
Stability: Typically maintains high accuracy over a period of time (e.g., one year).
Supply Voltage: Varies depending on the model and output signal type.
Ambient Temperature: Operating temperature range typically from -40 °C to +85 °C (may vary by specific model).
Protection Degree: Typically IP66 or IP67.
Process Connection: Various threaded, flanged, and other connection types.
Electrical Connection: Multiple terminal blocks and cable entries.
Certifications: May include explosion-proof certifications such as FM, CSA, ATEX, IECEx.
Product Advantages
Exceptional Reliability: Performs well in demanding industrial environments, reducing downtime.
High-Accuracy Measurement: Provides accurate process data, contributing to optimized control and improved efficiency.
Smart Features: Digital communication and self-diagnostic capabilities simplify device management and maintenance.
Wide Range of Applications: Suitable for measuring various process variables across diverse industrial sectors.
Long-Term Stability: Maintains measurement accuracy over extended periods.
Global Support: AVEVA provides worldwide technical support and service.
Precautions
Correct Model Selection: Choose the appropriate transmitter model based on specific measurement requirements (range, accuracy, process conditions, output signal, etc.).
Correct Installation: Follow the manufacturer's installation manual to ensure the transmitter is installed in the correct location with proper mechanical and electrical connections.
Environmental Protection: Avoid exposing the transmitter to temperatures, pressures, humidity, or corrosive environments outside its specified range.
Regular Calibration and Maintenance: Calibrate the transmitter at recommended intervals and perform regular inspections and maintenance to ensure long-term accurate and reliable operation.
Safe Operation: Transmitters used in hazardous areas must comply with relevant explosion-proof certification requirements and be operated according to safety procedures.
Product Applications
Foxboro transmitters are widely used in the following industrial sectors:
Oil and Gas: Pressure, flow, and level measurement for production, transportation, and refining processes.
Chemical: Measurement of critical parameters in process control.
Power Generation: Monitoring pressure, temperature, level, and flow in power plants.
Water and Wastewater Treatment: Level, flow, and pressure measurement in water treatment processes.
Pharmaceutical: Precise measurement in clean and hygienic environments.
Food and Beverage: Process control and quality monitoring.
Pulp and Paper: Control and optimization of process variables.
