Overview
In addition to the plug-in terminal block, this transmitter features in-field replaceable electronics module that thanks to the auto-configuration functionality dramatically improves plant productivity. Its intuitive plug-and-play display with easy setup procedure really helps users by saving time and lowering maintenance and inventory costs. Moreover, the innovative TTG (Through The Glass) technology allows users to configure the instruments in the field without removing the windowed front cover and consequently to save a lot of time.
The 266AST is certified by TUV NORD for use in safety instrumented systems as per the requirements of IEC61508. The transmitters meet the requirements for SIL2 applications in a single transmitter configuration (1oo1) and for SIL3 applications in a redundant configuration (1oo2).
Benefits
Base accuracy
• 0.04 % of calibrated span (optional 0.025 %)
Proven sensor technology together with state-of-the-art digital technology
• Large turn down ratio of up to 100:1
Comprehensive selection of sensors
• Optimized performance and stability 10–year stability
• 0.15 % of URL
Flexible configuration options
• Local configuration via keys on LCD indicator
TTG (Through-The-Glass) key technology
• Enables quick and easy local configuration without the need to open the cover - even in environments with explosion protection
IEC 61508 certification
• For SIL2 (1oo1) and SIL3 (1oo2) applications
Full compliance with Pressure Equipment Directive (PED) category III
Product in compliance with Directive 2011/65/UE (RoHS II)
In-built advanced diagnostics
Specification
| item | value | |
|---|---|---|
| accuracy | ±0.04% (Base Accuracy) | |
| type | Absolute Pressure Transmitter | |
| brand name | ABB | |
| model number | 266AST | |
| measurement type | Absolute Pressure | |
| measurement media | Liquid, Gas or Steam | |
| level measurement | Configuration Dependent (For Specific Liquid Level Applications) | |
| span limits | 0.3 to 10000 kPa abs.; 2.25 mmHg to 1450 psia | |
| output signal | 4 to 20 mA + HART | |
| communication protocols | HART; PROFIBUS PA 3.01; FOUNDATION Fieldbus ITK 6.x | |
| display | LCD | |
| display technology | TTG (Through The Glass) | |
| local operation | Configuration without opening the housing | |
| electronics | Field-Replaceable Electronics Module with Auto-Configuration | |
| terminal block | Plug-In Terminal Block | |
| turndown ratio | Up to 20:1 | |
| long-term stability | Excellent Long-Term Stability and Proven Reliability | |
| safety certification | SIL2 / SIL3 according to IEC 61508 | |
| pressure equipment compliance | PED Category III | |
| configuration | Local Keys, Handheld Terminal or PC Configuration Tools | |
| features | High Accuracy, Long-Term Stability, TTG Technology, Field-Replaceable Electronics and Plug-and-Play Display | |
| applications | Absolute Pressure Measurement for Liquid, Gas and Steam Applications | |
| process connection | Configuration Dependent | |
| electrical connection | Configuration Dependent | |
| wetted materials | Configuration Dependent (AISI 316L Stainless Steel, Hastelloy C-276 Options) | |
| housing | Configuration Dependent |
Worldwide Shipping
We are proud to offer worldwide shipping to meet your needs, no matter where you are located.
How We Ship
We normally ship via DHL, UPS, or FedEx for fast and trackable delivery.
Flexible Shipping Options
Depending on your order size and timeline, we also support Air Freight and Sea Freight options.
Trade Terms
We can arrange shipments under DAP (Delivered at Place) or DDP (Delivered Duty Paid). Just let us know your preference.
Why Choose Us
With years of experience and long-term cooperation with reliable freight forwarders, we ensure competitive rates and smooth customs clearance.
