266DDH is the differential direct-mount seal transmitter that allows full installation capability. This transmitter can be configured with a direct mount diaphragm seal and a standard pressure connection or combined with a remote diaphragm seal. In order to show its flexibility the 266DDH can be transformed into a gauge pressure transmitter thanks to the appropriate gauge filter for the atmosphere reference. The long-term stability and its proven reliability make of 266DDH the best choice for gauge and differential pressure measurements.

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 allow users to configure the instruments in the field without removing the windowed front cover and consequently to save a lot of time. 
Thanks to the IEC61508 certification (SIL2/SIL3 loops) the 266DDH represents the smartest solution in Safety loop applications. 
266DDH features WirelessHART communication protocol allowing a shorter installation times by eliminating complex wired infrastructures, and lower overall implementation costs of process measurement.
266DDH battery life is about 10 years at 32 sec. update rates, delivering a very cost effective and reliable solution to monitor your process assets. 

266DDH: smartness beyond performances.

- Base accuracy : ±0.06% 
- Span limits: 0.05 to 16000kPa; 0.2 ... 2320 psi 
- 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 

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:
HART:
Software:	DTM*, EDD
Supplementary Information:	Driver description
PROFIBUS:
Software:	DTM*, GSD
Supplementary Information:	Driver description
FOUNDATION Fieldbus:
Software:	EDD/CF
Supplementary Information:	Driver description

Stand-Alone-Tool
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).