Distributor Pressure Transmitter ABB 266DSH

WWW.DISTRIBUTORALATINDUSTRI.COM | Distributor Pressure Transmitter ABB 266DSH The ABB 266DSH Differential Pressure Transmitter is a high-performance differential pressure measurement instrument designed for accurate and reliable measurement of differential pressure in industrial process applications. It is suitable for measuring liquid, gas, and steam, and can also be applied for flow, level, pressure, and density measurement when used with the appropriate process configuration.

Distributor Pressure Transmitter ABB 266DSH

The 266DSH features a robust DP-style construction, high long-term stability, advanced digital electronics, and flexible configuration options. It is suitable for demanding applications in oil & gas, petrochemical, chemical processing, power generation, water and wastewater, and general industrial process control.

GENERAL SPECIFICATION
  • Manufacturer: ABB
  • Product Family: ABB 266 Series
  • Model: 266DSH
  • Instrument Type: Differential Pressure Transmitter
  • Measurement Principle: Differential pressure measurement using a diaphragm-based sensing system
  • Typical Applications: Flow, level, pressure, and density measurement
  • Process Media: Liquid, gas, and steam
  • Communication: HART / 4–20 mA, with other communication versions available depending on configuration
  • Installation: Process-mounted DP transmitter
  • Configuration: Field-configurable
  • Display: Optional LCD display
  • Safety: SIL2/SIL3 versions available according to IEC 61508
MEASUREMENT RANGE

The ABB 266DSH is available with multiple sensor ranges. Depending on the selected sensor code, span limits range from approximately:

0.05 to 16,000 kPa
or approximately
0.5 mbar to 160 bar

Equivalent pressure ranges can extend to approximately 0.2 to 2,320 psi, depending on the selected sensor configuration. The exact calibrated range must be confirmed from the complete ordering code/nameplate.

ACCURACY

The standard 266DSH offers a base accuracy of approximately:

±0.06% of calibrated span

An optional higher-performance configuration can provide accuracy down to approximately:

±0.04% of calibrated span

Actual accuracy depends on the selected sensor, turndown, process temperature, ambient conditions, and configuration.

OUTPUT AND COMMUNICATION

For the standard electronic configuration, the transmitter provides:

  • Output Signal: 4–20 mA DC
  • Communication Protocol: HART®
  • Digital Configuration: Via HART handheld communicator or compatible PC-based configuration software
  • Output Characteristic: Linear
  • Damping: Typically configurable; standard HART configuration is 1 second
  • Failure Mode: Upscale in the standard configuration

The transmitter can be factory calibrated to the customer’s specified measuring range, with the calibrated range and tag information recorded on the transmitter identification plate.

SENSOR AND PRESSURE RANGE OPTIONS

The 266DSH is offered with several sensor ranges, including sensor codes such as:

  • A: Low differential pressure range
  • B: Low differential pressure range
  • E: Low-to-medium differential pressure range
  • F: Medium differential pressure range
  • H: Medium differential pressure range
  • M: Higher differential pressure range
  • P: High differential pressure range
  • Q: Very high differential pressure range
  • S: High-pressure sensor configuration

The exact measurement range is determined by the selected sensor code in the complete model number.

DIAPHRAGM / WETTED MATERIALS

Depending on configuration, the 266DSH can be supplied with different diaphragm and wetted-material options, including:

  • AISI 316L Stainless Steel
  • Hastelloy® C-276
  • Gold-plated 316L Stainless Steel
  • Tantalum

Different fill-fluid options are also available, including silicone oil and inert Galden® fluid, depending on the selected configuration.

STATIC PRESSURE CAPABILITY

The maximum static pressure depends on the selected sensor configuration. Typical maximum static pressure ratings include:

  • Sensor A: approximately 5 bar / 72.5 psi
  • Sensor B: approximately 20 bar / 290 psi
  • Sensor E: approximately 35 bar / 500 psi
  • Sensors F through S: up to approximately 70 bar / 1,015 psi

The maximum working pressure must be confirmed against the exact transmitter configuration and process connection.

LOCAL DISPLAY AND CONFIGURATION

An optional LCD display is available for local indication of the measured process variable. Depending on configuration, the display can show:

  • Differential pressure value
  • Engineering unit
  • Output current
  • Output percentage
  • Bargraph indication

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