The ABB 266ART is a high-performance absolute pressure transmitter with remote diaphragm seals, designed for process applications where reliable measurement and isolation from the process medium are important. Its all-welded seal construction and wide range of configuration options help accommodate critical process media and demanding ambient conditions.
Key Features
- Absolute pressure measurement for liquids, gases, and steam
- Base accuracy of ±0.04%
- Span limits from 1.2 to 10,000 kPa absolute, depending on configuration
- All-welded remote diaphragm seal technology
- Multiple diaphragm materials, fill fluids, capillary protections, and mounting connections
- 4–20 mA with HART, PROFIBUS PA, or FOUNDATION Fieldbus options
- LCD with Through-The-Glass (TTG) configuration
- Replaceable electronics module with automatic configuration
- SIL2 capability in a single-transmitter configuration and SIL3 in a redundant configuration, according to IEC 61508
- PED Category III compliance
Applications
Suitable for absolute pressure monitoring in chemical processing, oil and gas, power generation, and other process industries handling liquids, gases, or steam. Remote diaphragm seals can help isolate the transmitter from viscous, corrosive, fouling, or temperature-sensitive media. Seal materials, fill fluid, capillary length, and mounting options should be selected according to the process conditions.
Why Choose the ABB 266ART?
The 266ART combines high measurement accuracy, flexible remote seal configurations, advanced local setup, and safety-system certifications to support reliable measurement in demanding industrial applications.
Q1: What is the ABB 266ART Absolute Pressure Transmitter used for?
It measures absolute pressure in liquid, gas, and steam applications using a remote or direct-mount diaphragm seal configuration.
Q2: What is the accuracy of the 266ART?
Its specified base accuracy is ±0.04%.
Q3: What is the measuring range of the ABB 266ART?
The published span limits are 1.2 to 10,000 kPa absolute, depending on the selected configuration.
Q4: What is the purpose of the remote diaphragm seal?
It isolates the transmitter from the process medium and transfers pressure through a fill-fluid system, helping accommodate certain challenging process conditions.
Q5: Which communication protocols are available?
The 266ART supports 4–20 mA with HART, PROFIBUS PA 3.01, and FOUNDATION Fieldbus ITK 6.x options. Confirm the required protocol and revision before ordering.
Q6: What is Through-The-Glass (TTG) technology?
TTG allows users to configure the transmitter through the front window without opening the housing.
Q7: Is the 266ART suitable for safety instrumented systems?
ABB states that it meets SIL2 requirements in a single-transmitter configuration (1oo1) and SIL3 requirements in a redundant configuration (1oo2), according to IEC 61508.
Q8: Can the 266ART handle corrosive or high-temperature process media?
A selection of diaphragm materials and fill fluids is available for different process conditions. Confirm chemical compatibility and temperature limits for the complete seal assembly.
Q9: Can the electronics module be replaced in the field?
Yes. The replaceable electronics module includes automatic configuration functionality intended to simplify replacement and maintenance.
Q10: How can I request a quotation for the ABB 266ART?
Provide the required absolute pressure range, process medium, operating temperature, diaphragm material, fill fluid, capillary length, mounting connection, communication protocol, and required certifications.
