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Differential pressure transmitter with integral flange

Model 266DHH is a flange-mounted differential pressure transmitter. 
Featuring also WirelessHART communication, this field device represents the optimum compromise between high performance and flexibility.

Fieldbus & HART


With a maximum working pressure of up to 5MPa (725psi), this transmitter is the right application solution for clean process fluids (generally water and clean oils). 266DHH performance are exceeding by far performance expectations of the direct-mounted diaphragm seal versions.

266 is the first and only pressure transmitter with TTG technology allowing  full configuration with closed covers. 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 menu provides configuration and zero trim in minutes helping customers in saving time and lowering maintenance and inventory costs.
SIL2/SIL3 certification issued by TÜV Nord according to IEC 61508 represents another key-feature within 266 pressure transmitter portfolio. This certification is a real guarantee of protection and makes of 266DHH the smartest fit in Safety-critical loops.

266DHH features WirelessHART communication protocol allowing shorter installation costs and times.
266DHH battery life is about 10 years at 32 sec. update rates, delivering a very cost effective and reliable solution to monitor your process assets.applications.


266DHH: smartness beyond performances.

- Base accuracy : from ±0.06%
- Span limits: 0.27 to 2400kPa; 1.08inH2O to 348psi
- 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


Fieldbus & HART

ABB’s freedom of choice offers the right driver for the major fieldbus protocols suitable for ABB devices.
The Version Matrix document shows for each protocol the Software Revision that’s compatible to the Hardware and Firmware Revision of the device.

Read first:
Version Matrix

Download software and relevant documents:
Software: DTM*, EDD
Supplementary Information: Driver description

Software: DTM*, GSD
Supplementary Information: Driver description

Software: EDD/CF
Supplementary Information: Driver description

ABB offers Software Tools that use the listed drivers in the table above for your device configuration and monitoring requirements.
Please read more & download

Fieldbus solutions
ABB offers a wide range of fieldbus products, accessories, tools, support documentations, applications and news.
Please read more
*) DSV401 Rx (SMART VISION) is not released with the latest DTM500 Bundle.
Please use any latest frame application (e.g. Stand-Alone-Tool ABB DAT200 Asset Vision Basic).


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