ABB 266GST Gauge Pressure Transmitter
Innovation is embedded in the 266GST's design, particularly through its industry-leading Through-the-Glass (TTG) technology — a proprietary feature from ABB that revolutionizes on-site operation. This technology allows users to configure and operate the transmitter directly through the windowed front cover without opening it, eliminating safety risks in hazardous areas and saving valuable time. The intuitive four-button HMI (Human Machine Interface) with user-friendly menu navigation enables quick parameter setting, eliminating the need for expensive handheld configurators. Additionally, external non-intrusive zero and span push buttons facilitate safe and rapid range adjustment, further enhancing operational convenience.
Reliability and maintainability are key design principles of the 266GST. Its plug-in electronics module and terminal block enable in-field replacement in minutes, with automatic configuration ensuring that the transmitter resumes operation without reconfiguration — a critical advantage in minimizing downtime caused by lightning strikes, wiring errors, or component failures. The integrated Plugged Impulse Line Diagnostic (PILD) function continuously monitors for impulse line clogging or freezing, issuing real-time warnings via the local LCD and communication protocol to prevent process disruptions. These features collectively boost plant productivity and equipment availability.
Safety is paramount in industrial operations, and the 266GST meets the highest global safety standards. Certified by TÜV Nord in accordance with IEC 61508, it is suitable for SIL 2 applications in a single-transmitter configuration (1oo1) and SIL 3 applications in a redundant configuration (1oo2). The transmitter also fully complies with the Pressure Equipment Directive (PED) Category III and RoHS II Directive (2011/65/UE), ensuring compliance across major industrial markets worldwide. Its robust construction and comprehensive safety features make it an ideal choice for safety-instrumented systems (SIS) in high-risk industries.
The 266GST offers exceptional flexibility in communication and application. It supports multiple protocols, including 4-20 mA HART, PROFIBUS PA 3.01, and Foundation Fieldbus ITK 5.1, enabling seamless integration with existing control systems. A wide selection of sensor materials and process connections, including hygienic options for food and pharmaceutical industries, ensures compatibility with diverse process conditions — from corrosive media to sterile environments. Its versatility makes it suitable for a broad range of sectors, including oil and gas, power generation, chemical processing, food and beverage, and water treatment.
Sensor code | Upper range limit | Lower range limit | Minimum measuring span |
C | 6kPa 60 mbar 24 inH2O | -6kPa -60 mbar -24 inH2O | 0.2 kPa 2 mbar 0.8 inH2O |
F | 40 kPa 400mbar 160 inH2O | -40 kPa -400 mbar -160inH2O | 0.4 kPa 4 mbar 1.6 inH2O |
L | 250 kPa 2500 mbar 1000 inH2O | -100 kPa -1 bar -14.5 psi | 2.5 kPa 25 mbar 10 inH2O |
D | 1000 kPa 10 bar 145 psi | -100 kPa -1bar -14.5 psi | 10 kPa 100 mbar 1.45 psi |
U | 3000 kPa 30 bar 435 psi | -100 kPa -1bar -14.5 psi | 30 kPa 0.3 bar 4.35 psi |
R | 10000 kPa 100 bar 1450psi | -100 kPa -1bar -14.5 psi | 100 kPa 1 bar 14.5 psi |
V | 60000 kPa 600 bar 8700psi | -100 kPa -1bar -14.5 psi | 600 kPa 6 bar 87 psi |
Model 266GST is the top performance gauge pressure transmitter suitable for measuring liquid, gas or steam pressure as well as liquid level in an open tank. Thanks to its stability and reliability it works within stated performance even in extreme ambient and process conditions
Base Accuracy | ±0.04% of calibrated span; optional high-precision version up to ±0.025% |
Measurement Range | 0.2 kPa (0.8 inH₂O) to 60,000 kPa (8700 psi) |
Turndown Ratio | Up to 100:1 |
Stability | 10-year stability guarantee |
Minimum Measuring Span | Varies by sensor code: 0.2 kPa (C code), 0.4 kPa (F code), 2.5 kPa (L code), 10 kPa (D code), 30 kPa (U code), 100 kPa (R code), 600 kPa (V code) |
Damping | Configurable time constant between 0 and 60 seconds (in addition to sensor response time) |
Startup Time | Less than 10 seconds (with minimum damping) |
Power Supply | 9 to 32 V DC (polarity-independent); max 17.5 V DC for intrinsic safety in EEx ia zones (FISCO model compliant) |
Quiescent Current | 15 mA; maximum residual current limit 20 mA |
Communication Protocols | 4-20 mA HART, PROFIBUS PA 3.01 (conforms to Profile 3.0.1, indent number 3450 hex), Foundation Fieldbus ITK 5.1 |
Insulation Resistance | >100 MΩ at 500 V DC (between terminals and ground) |
Safety Certifications | TÜV Nord certified to IEC 61508 (SIL 2 for 1oo1 configuration, SIL 3 for 1oo2 redundant configuration); PED Category III; RoHS II Directive (2011/65/UE) compliant |
Key Features | Through-the-Glass (TTG) technology, plug-in electronics module, Plugged Impulse Line Diagnostic (PILD) function, non-intrusive zero/span adjustment |
Base Accuracy | ±0.04% of calibrated span; optional high-precision version up to ±0.025% |
Measurement Range | 0.2 kPa (0.8 inH₂O) to 60,000 kPa (8700 psi) |
Packaging: Original cardboard box packaging
Esito (weifang) Automation Equipment Co., Ltd. specializes in industrial automation instrument development, production and sales, technical services, and supporting equipment supply of specialized companies. The main products are flow meters, level meters, temperature meters, pressure meters, electrical meters, thermal intelligent meters, programmable controllers (PLC), DCS distributed control systems, and eight series of more than 1,000 specifications. Its products and technologies are widely used in electric power, metallurgy, petrochemicals, environmental protection, plastics, food, printing, tobacco, textile, dyeing, and other fields.
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