A-B 1762-OB8 Central control module

A-B Transmitters Overview

A-B (Allen-Bradley) offers a wide range of transmitters for measuring various parameters in industrial processes, such as pressure, temperature, level, and flow. These transmitters convert the measured physical quantities into standard electrical signals, such as 4-20 mA or HART protocol, for easy transmission and processing in control systems, monitoring systems, and data acquisition systems.

Product Detailed Description

• Function:

• Precisely measures physical quantities (pressure, differential pressure, absolute pressure, temperature, level, flow, etc.) in industrial processes.

• Converts the measured physical quantities into standard analog or digital electrical signals.

• Provides reliable and accurate process data for control, monitoring, and data logging.

• Many models support digital communication protocols such as HART, Foundation Fieldbus, or Profibus PA for more advanced configuration and diagnostic capabilities.

• Available with various housings and process connections to suit different application environments and media.

• Features:

• High accuracy and stability ensure the reliability of measurement results.

• Rugged industrial design withstands harsh industrial environments (e.g., vibration, shock, corrosive media).

• Wide selection of measurement ranges and output signal types.

• Easy to install, configure, and maintain.

• Some models have self-diagnostic functions to detect faults in sensors and electronics.

• Supports remote configuration and calibration.

Product Parameters

As A-B offers a wide variety of transmitters, the following are some general parameters. Always refer to the official datasheet for the specific model:

• Measured Parameters:

• Pressure (Gauge, Differential, Absolute, Vacuum).

• Temperature (RTD, Thermocouple).

• Level (Hydrostatic, Ultrasonic, Radar, Capacitance).

• Flow (Differential Pressure, Electromagnetic, Vortex, Ultrasonic).

• Measurement Range:

• Varies by specific model and measured parameter.

• Output Signal:

• 4-20 mA (2-wire or 4-wire).

• HART Protocol (superimposed on 4-20 mA).

• Foundation Fieldbus.

• Profibus PA.

• Digital Output (e.g., discrete).

• Accuracy:

• E.g., ±0.05% FS (Full Scale), ±0.1% FS.

• Stability:

• E.g., ±0.1% URL/year (Upper Range Limit/year).

• Supply Voltage:

• E.g., 10-30 V DC, 24 V DC.

• Degree of Protection (IP):

• E.g., IP66, IP67, IP68.

• Process Connection:

• Various thread types, flanges, etc., with dimensions and materials depending on the application.

• Electrical Connection:

• Cable entries, terminal blocks, etc.

• Operating Temperature:

• Varies by specific model and application.

• Certifications:

• E.g., FM, CSA, ATEX, IECEx, etc. (depending on the specific model and application).

Product Advantages

• High Accuracy and Reliability:

• Provides accurate and stable process measurement data.

• Robust and Durable:

• Suitable for harsh industrial environments.

• Wide Product Line:

• Covers various measurement parameters and application needs.

• Easy Integration:

• Output signals and communication protocols are compatible with various control and monitoring systems.

• Advanced Communication Capabilities:

• Supports digital communication protocols for more advanced features and diagnostics.

• Long-Term Stability:

• Reduces calibration frequency and lowers maintenance costs.

• Global Support:

• Rockwell Automation provides comprehensive pre-sales and after-sales service worldwide.

Precautions

• Correct Selection:

• Choose the appropriate transmitter model based on the specific measurement parameters, measurement range, process conditions (temperature, pressure, media characteristics), output signal requirements, and environmental conditions.

• Correct Installation:

• Follow A-B's installation guidelines, ensuring the transmitter is installed in a suitable location and appropriate protective measures are taken.

• Correct Wiring:

• Connect the power and signal lines correctly according to the wiring diagram, and ensure proper grounding.

• Parameter Configuration:

• Configure the transmitter parameters correctly according to the specific application requirements (e.g., measurement range, output signal type, damping).

• Calibration:

• Calibrate the transmitter regularly to ensure measurement accuracy.

• Maintenance:

• Regularly inspect the operating status and connections of the transmitter and perform necessary maintenance.

• Safe Operation:

• Always follow relevant safety procedures in applications involving hazardous media or environments.

Product Applications

A-B transmitters are widely used in various industrial sectors, including but not limited to:

• Oil and Gas:

• Measurement and control of pressure, temperature, level, and flow.

• Chemical:

• Measurement of various parameters in reactors, storage tanks, and pipelines.

• Power Generation:

• Pressure and temperature measurement in boilers, turbines, and cooling systems.

• Water and Wastewater Treatment:

• Monitoring of level, flow, and pressure.

• Food and Beverage:

• Hygienic transmitters for process control.

• Pharmaceutical:

• High-accuracy transmitters for measuring critical process parameters.

• Heating, Ventilation, and Air Conditioning (HVAC):

• Monitoring and control of pressure and temperature.

• Pulp and Paper:

• Parameter measurement in the pulping and papermaking process.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapor

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