ABB 266AST, 266NRH, and 266NSH Absolute Pressure Transmitter

Pressure Transmitter Model 266AST is the top performance absolute pressure transmitter suitable for liquid, gas, or steam applications. It provides a broad selection of options, such as fill fluids and wetted materials, allowing operation even with critical process media in a harsh environment. Long-term stability and proven reliability are the key-factors of 266AST.

Absolute Pressure Transmitter

In addition to the plug-in terminal block, this Pressure transmitter features an in-field replaceable electronics module that thanks to the auto-configuration functionality dramatically improves plant productivity. Its intuitive plug-and-play display with an 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 Pressure Transmitter 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).

Specifications

  • Base accuracy: ± 0.04 %
  • Span limits: 0.3 … 10000 kPa abs.; 2.25 mmHG … 1450 psia
  • Output signal: Multiple protocol availability offering interchangeability and transmitter upgrade capabilities
    – 4 to 20 mA, HART
    – PROFIBUS PA 3.01
    – FOUNDATION Fieldbus ITK 5.1
  • Local operation with LCD with TTG (Through The Glass) technology without the need of opening the housing
  • Conforms to SIL2 / SIL3 acc. to IEC 61508
  • Full compliance with PED Category III

Pressure Transmitter 266NRH (with remote diaphragm seal)

Pressure Transmitter Model 266NRH is a high overload absolute pressure transmitter suitable for measuring liquid, gas, or steam flow as well as level, pressure, and density characterized by the remote seal construction.

ABB Absolute Pressure Transmitter type 266AST, 266NRH, and 266NSH
266NRH (with remote diaphragm seal)

Thanks to Taylor’s “All-Welded” technology in remote seal manufacturing as well as to the longstanding expertise, 266NRH can offer unmatched total performances and a wide selection of options such as fill fluid, diaphragm material, capillary protection, and mounting connections.

ABB, the leader in severe process measurements, is able to provide the right solution for the most critical process media at extreme ambient and process conditions. The long-term stability and its proven reliability make 266NRH the best application solution for absolute pressure measurements. This transmitter features an in-field replaceable electronics module that thanks to the auto-configuration functionality dramatically improves plant productivity.

Its intuitive plug-and-play display with an 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.

SIL2/SIL3 certification issued by TÜV Nord according to IEC 61508 represents another key-feature within the 266 pressure transmitter portfolio. This certification is a real guarantee of protection and makes 266NRH the smartest fit in Safety-critical loops.

Pressure Transmitter 266NRH features WirelessHART communication protocol allowing a shorter installation time by eliminating complex wired infrastructures, and lower overall implementation costs of process measurement. Pressure Transmitter 266NRH battery life is about 10 years at 32 sec. update rates, delivering a very cost-effective and reliable solution to monitor your process assets.

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Specifications

Pressure Transmitter 266NRH: smartness beyond performances.

  • Base accuracy: ±0.075%
  • Span limits: 1.1 …16000 kPa abs.; 8 mm HG … 2320 psia
  • Multiple protocol availability – provides integration with HART®, PROFIBUS PA, FOUNDATION  Fieldbus and WirelessHART platforms offering interchangeability and transmitter upgrade capabilities
  • Full compliance with PED Category III

Pressure Transmitter 266NSH (High overload)

Model 266NSH, absolute pressure transmitter with an integrated high overload protection system. Model 266NSH is suitable for a broad selection of options allowing total flexibility maximizing the cost-effective aspect, providing at the same time a reliable solution for all those applications characterized by critical process media at extended temperature ranges.

In addition to the traditional configuration tools (local keys, LCD indicator, hand-held terminal, or PC configuration software) 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, highlighting ABB commitment to satisfy users’ needs of simplicity and flexibility.

This transmitter features an in-field replaceable electronics module that thanks to the auto-configuration functionality dramatically improves plant productivity. Its intuitive plug-and-play display with an easy setup procedure really helps users by saving time and lowering maintenance and inventory costs.

SIL2/SIL3 certification issued by TÜV Nord according to IEC 61508 represents another key-feature within the 266 pressure transmitter portfolio. This certification is a real guarantee of protection and makes 266NSH the smartest fit in Safety-critical loops.

266NSH features WirelessHART communication protocol allowing the addition of pressure measurement points throughout your operation. You can now monitor hard-to-reach locations and keep your employees out of dangerous and hazardous areas. The 266 WirelessHART Pressure Transmitters have a battery life of about 10 years at 32-sec update rates, delivering a very cost-effective and reliable solution to monitor your process assets.

Shorten installation times by eliminating complex wired infrastructures, and lower overall implementation costs of process measurement, with ABB wireless devices featuring WirelessHART communications – Measurement made easy.

Specifications

266NSH: smartness beyond performances

  • Base accuracy: ±0.075%
  • Span limits: 1.1 …16000 kPa abs.; 8 mm HG … 2320 psia
  • Multiple protocol availability – provides integration with HART®, PROFIBUS PA, FOUNDATION Fieldbus and WirelessHART platforms offering interchangeability and transmitter upgrade capabilities
  • Full compliance with PED Category III

Download Datasheet: 266AST

Download Datasheet: 266NRH

Download Datasheet: 266NSH

Reference: new.abb.com

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