ABB PDS300 Differential Pressure Transmitter

Overview

The ABB PDS300 and PDD300 differential pressure transmitters represent advanced technology in industrial process measurement. Engineered for demanding process automation environments, these transmitters provide exceptionally accurate and reliable measurements of differential pressure, level, and flow. Whether applied in oil and gas, chemical processing, power generation, or water treatment, the ABB PDS300 series delivers consistent operational intelligence and process safety.

Featuring a base accuracy of 0.05% and a turndown ratio of up to 100:1, the PDS300 and PDD300 transmitters ensure robust signal integrity even under extreme static line pressures up to 41 MPa (5945 psi). The transmitter operates by sensing pressure variations across a piezoresistive sensor element, converting mechanical stress into a high-precision electronic signal.

Key Features and Benefits

• Exceptional Measurement Accuracy & Stability: With standard accuracy starting at 0.05% of calibrated span and minimal long-term drift, process control remains tight and repeatable over extended maintenance cycles.

• Functional Safety Certified: Designed to meet IEC 61508 standards for SIL2 (single transmitter) and SIL3 (redundant architecture) applications, making it an ideal choice for safety-instrumented systems (SIS).

• Comprehensive Diaphragm Seal Integration: Available with a wide variety of S26 remote diaphragm seals (flanged, wafer, sanitary, and off-line types) to handle corrosive, viscous, high-temperature, or toxic process media safely.

• User-Friendly Interface: The integrated 3-line LCD display supports intuitive menu navigation. With optional Through-The-Glass (TTG) technology, operators can safely configure and calibrate the instrument directly in hazardous locations without removing the housing cover.

• Flexible Fieldbus Protocols: Supports standard 4–20 mA with HART 5/HART 7 protocol, as well as digital fieldbus protocols like PROFIBUS PA and FOUNDATION Fieldbus, allowing seamless integration into DCS and PLC networks.

• Durable Construction: Available with aluminum alloy or 316L stainless steel electronics housings, complemented by corrosion-resistant wetted materials such as 316L SST, Hastelloy C-276, Monel, and Tantalum.

Applications

The ABB PDS300 and PDD300 transmitters are widely utilized across diverse processing industries for key applications including:

• Flow Measurement: Differential pressure flow measurement in combination with primary flow elements such as orifice plates, venturi tubes, and averaging pitot tubes.

• Level Measurement: Hydrostatic liquid level monitoring in pressurized or open storage tanks and vessel applications.

• Filter and Pump Monitoring: Differential pressure monitoring across industrial filters, strainers, pumps, and heat exchangers to detect blockage or performance degradation.

• Process Line Monitoring: Continuous differential pressure surveillance in oil & gas pipelines, chemical reactors, power generation boilers, and municipal water purification facilities.

Technical Specifications

• Measuring Ranges:Span limits from 0.2 kPa to 10,000 kPa (0.8 inH2O to 1450 psi).

• Base Accuracy:±0.05% of calibrated span (optional higher accuracy available).

• Turndown Ratio:Up to 100:1.

• Operating Pressure Limits:Working pressure up to 41 MPa / 410 bar / 5945 psi (depending on flange rating and sensor range).

• Power Supply:10.5 V DC to 42 V DC (10.5 V DC to 30 V DC for intrinsically safe executions).

• Output Signal:

  • 4 to 20 mA DC with HART protocol.

  • PROFIBUS PA (Profile 3.01).

  • FOUNDATION Fieldbus (ITK 5.1 / 6.0).

• Process Temperature Limits:

  • Silicone oil fill: -40°C to 121°C (-40°F to 250°F).

  • Inert fluid fill: -20°C to 100°C (-4°F to 212°F).

  • With remote seals: Up to 320°C (608°F) depending on seal configuration and fill fluid.

• Ambient Temperature Limits:-40°C to 85°C (-40°F to 185°F); with LCD display: -20°C to 70°C (-4°F to 158°F).

• Wetted Materials:

  • Diaphragms: Stainless Steel 316L, Hastelloy C-276, Monel, Tantalum, Gold-plated 316L.

  • Process Flanges: Stainless Steel 316L, Hastelloy C-276.

• Enclosure Rating:IP67 / NEMA 4X.

• Hazardous Area Certifications:ATEX / IECEx / FM / CSA Explosionproof, Intrinsically Safe, Non-Incendive, and Dust Ignition Proof.

FAQ

Q1: What process media can the ABB PDS300 transmitter measure?

A: The ABB PDS300 transmitter is suitable for measuring clean, corrosive, viscous, or slurry fluids including liquids, gases, and saturated/superheated steam when paired with compatible wetted materials or remote diaphragm seals.

Q2: Can the PDS300 transmitter be configured in hazardous areas without opening the enclosure?

A: Yes, when equipped with the optional Through-The-Glass (TTG) LCD display, parameters can be modified directly through the display window using capacitive touch keys, eliminating the need to open the housing cover in explosive environments.

Q3: What communication protocols are supported by the PDS300 / PDD300?

A: The transmitters support standard 4–20 mA DC with HART communication, as well as digital bus communications including PROFIBUS PA and FOUNDATION Fieldbus.

Q4: Is the ABB PDS300 suitable for safety-critical applications?

A: Yes, the PDS300 is IEC 61508 certified for SIL2 applications in single-device configuration and SIL3 in redundant configurations, making it fully compliant for Safety Instrumented Systems (SIS).

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