ABB 266DHH Differential Pressure Transmitter

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ABB 266DHH Differential Pressure Transmitter maximum working pressure of up to 5MPa (725psi). This pressure transmitter becomes the right solution for clean process fluids (generally water and clean oils). The pressure transmitter performance exceeds the expectations of direct-mounted diaphragm seal versions of differential pressure transmitters.

Applications: Domestic, Process engineering, Chemical industry, Petrochemical industry Applications.

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ABB Differential Pressure Transmitter Model 266 is the first and only pressure transmitter with TTG (Through the Glass Keypad ) technology allowing full configuration with closed covers. In addition to the plug-in terminal block, 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 menu provides configuration and zero trim in minutes helping customers in saving time and lowering maintenance and inventory costs. This certification is a real guarantee of protection and makes of 266DHH the smartest fit in Safety-critical loops.

Features of ABB Differential Pressure Transmitter :

  • 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

Additional information

Weight 1 kg


Model No



0.06 %


Two–wire 4 to 20 mA

Power Supply

Power Supply from 9 to 32 V DC

Integral Display

Wide screen LCD, 128 x 64 pixel,
52.5 x 27.2 mm (2.06 x 1.07 in.) dot matrix. Multilanguage.

Operating Temperature

-10 to +60 °C


on flanges : 1/4 – 18 NPT on process axis
on adapters : 1/2 – 14 NPT on process axis


±0.15 % of URL over a ten years period

Current consumption

operating (quiescent): 15 mA fault current limiting: 20 mA max

Diaphragm Materila /Fill Fluid( Wetted Part )

AISI 316 L ss (Silicone oil)

Output Interface

PROFIBUS PA communication according to Profibus
DP50170 Part 2/DIN 19245 part 1–3.

Process Flange

AISI 316 L ss (Horizontal connection) 1/4 – 18 NPT-f direct

Electromagnetic Field

Meets all the requirements of EN 61326 and NAMUR NE-21.

Supply voltage

Within voltage/load specified limits the total effect is less than 0.005 % of URL per volt.

Housing Material and Electrical Connections

Aluminium alloy

Integral LCD

Standard Digital LCD integral display

Bolts and nuts

AISI 316 ss bolts and nuts Class A4–50 per UNI 7323


1 Year Manufacturing Warranty


Standard: at maximum span, zero based range, ambient temperature and pressure; Optional: at specified range and ambient conditions.


650 Grams

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ABB 266DSH Differential Pressure Transmitter

ABB 266DHH Differential Pressure Transmitter