ABB 267CS.L.3.K.Q.3.A.5.V2 Multivariable Pressure Transmitter

Overview

The ABB 267CS.L.3.K.Q.3.A.5.V2 is a precision multivariable pressure transmitter from ABB’s 2600T Series, purpose-built to measure differential pressure, absolute/static pressure and process temperature simultaneously from a single sensing element. Rather than deploying three separate instruments – a differential pressure transmitter, an absolute pressure transmitter and a temperature transmitter – feeding a flow computer, the 267CS consolidates all three process variables into one device with dynamic, on-board compensation for fully corrected mass or standard volume flow of steam, gases and liquids. With a base accuracy of ±0.075% of span and a maximum working pressure rating up to 100 bar (1450 psi) in this configuration, it is engineered for demanding custody-transfer-grade and process-critical flow measurement duty.

As the official authorized partner and exclusive regional representative for ABB, Seven Star LLC proudly supplies the ABB 267CS.L.3.K.Q.3.A.5.V2 multivariable transmitter to process plants, refineries and utilities throughout Oman and the wider GCC. Every unit shipped from Seven Star LLC is genuine ABB factory production, backed by full manufacturer warranty and local technical support – a critical assurance for operators in the Sultanate of Oman who cannot afford grey-market instrumentation on safety-critical flow loops.

Measurement Principle

The ABB 267CS uses a single multisensor capsule to capture differential pressure and absolute (static) pressure from the same isolating diaphragm assembly, while a four-wire Pt100 RTD connected externally reports process temperature. These three raw variables – dp, p and T – are processed by the transmitter’s onboard electronics using flow equations compliant with AGA 3 and DIN EN ISO 5167, dynamically correcting for gas expansion factor, discharge coefficient, velocity of approach, Reynolds number and thermal expansion of the primary flow element and pipework. This means the reported mass or standard volume flow value already reflects real-time density changes caused by pressure and temperature fluctuations in the process line, rather than relying on a separate flow computer to reconcile three independently drifting signals.

Because compensation happens inside a single sensor module rather than across three networked instruments, the 267CS.L.3.K.Q.3.A.5.V2 eliminates the timing and calibration mismatches that occur when discrete dp, p and T transmitters report asynchronously to a DCS or PLC. The practical result for the end user is fewer process penetrations, fewer isolation valves, less signal wiring, and a meaningfully lower probability of process leaks at the tap points – all while delivering better overall flow accuracy than the traditional three-transmitter architecture it replaces.

Engineering Design of the ABB 267CS.L.3.K.Q.3.A.5.V2

This variant is built on ABB’s 2600T barrel-style electronics housing in aluminium alloy with 1/2-14 NPT electrical entries (code A), paired with a Hastelloy C-276 isolating diaphragm and silicone oil fill (code K) for compatibility with moderately corrosive process media. The ‘L’ sensor code provides a differential pressure span of 0 to 250 kPa (2500 mbar, 1000 in H2O), while the ‘3’ static pressure code rates the unit for absolute pressure service up to 10 MPa (100 bar, 1450 psi). The process connection is AISI 316L stainless steel with a vertical 1/4-18 NPT direct flange (code Q), and Viton gaskets with stainless steel NACE-compliant bolting (code 3) round out the wetted and pressure-boundary materials.

Output is via Modbus RS 485 digital communication (code 5), giving the 267CS.L.3.K.Q.3.A.5.V2 native two-wire digital integration into DCS, PLC or RTU networks without requiring a separate 4–20 mA loop, while retaining the option for HART on other build variants of the same platform. The housing rotates a full 360° for optimal display and terminal access, is rated IP 66/IP 67 for outdoor and wash-down environments, and the enclosure accepts the optional plug-in LCD indicator for local diagnostics. A stainless steel process flange vent/drain valve (code V2, positioned on the flange side, top) simplifies commissioning and maintenance without disturbing the process connection. The transmitter weighs approximately 3.5 kg unmounted and is rated for ambient operation from -40°C to +85°C.

Key Features

The ABB 267CS multivariable transmitter combines several engineering advantages that make it a preferred choice for compensated flow measurement across the GCC process industry:

• The ABB 267CS measures differential pressure, static/absolute pressure and process temperature from a single instrument, replacing three separate field transmitters.
• Delivers ±0.075% base accuracy with dynamic compensation for discharge coefficient, gas expansion factor, Reynolds number and thermal pipe expansion.
• Modbus RS 485 digital output provides direct, noise-resistant integration with modern DCS and RTU platforms.
• Hastelloy C-276 diaphragm and silicone oil fill extend service life in mildly corrosive hydrocarbon and utility streams.
• Static pressure rating to 100 bar (1450 psi) supports mid-to-high pressure process lines typical of gas and steam metering skids.
• IP 66/IP 67-rated aluminium housing with 360° rotatable electronics withstands humid, dusty and coastal Omani plant environments.
• Reduced process penetrations and fewer shut-off valves compared with a three-transmitter architecture cut both installation cost and leak risk.
• The ABB 267CS platform is compatible with SIL 2 functional-safety applications per IEC 61508/61511 when ordered with the relevant certification option.

Industrial Applications

The ABB 267CS multivariable transmitter, in the ABB 267CS.L.3.K.Q.3.A.5.V2 configuration, is deployed wherever accurate, temperature- and pressure-compensated mass flow data is required from orifice plates, venturis, nozzles or V-cone primary elements. Typical duty includes custody-transfer and allocation metering of natural gas and associated gas streams, saturated and superheated steam flow measurement in power and utility boilers, compensated liquid hydrocarbon flow on pipelines and loading terminals, and general process flow monitoring across refineries, gas processing plants and petrochemical complexes. Its single-device architecture is particularly valued on offshore platforms and remote wellhead sites where minimizing process penetrations and field wiring materially reduces both cost and long-term maintenance exposure.

As the officially authorized partner for ABB, Seven Star LLC distributes the 267CS.L.3.K.Q.3.A.5.V2 to oil and gas operators, EPC contractors and utility companies across Oman, Muscat, and the broader GCC, including projects supported through the Sohar and Salalah industrial and free-trade zones. Local stock availability of the ABB 267CS and factory-trained technical support mean that flow-metering skids, boiler houses and gas custody-transfer stations in the Sultanate of Oman can specify genuine ABB multivariable instrumentation with confidence in lead time, calibration traceability and after-sales service.

Technical Specifications

Key technical parameters for the ABB 267CS multivariable transmitter, model ABB 267CS.L.3.K.Q.3.A.5.V2, are summarized below for engineering reference.

Request a Quote for ABB 267CS.L.3.K.Q.3.A.5.V2 Multivariable Pressure Transmitter

Seven Star LLC invites process engineers, procurement teams and EPC contractors across Oman and the GCC to request a formal RFQ for the ABB 267CS multivariable pressure transmitter (ABB 267CS.L.3.K.Q.3.A.5.V2). As the authorized partner for ABB in Oman and the GCC, Seven Star LLC maintains regional warehouse stock of frequently specified 2600T Series configurations, provides the full technical datasheet for engineering review, and offers direct access to our instrumentation division for application sizing, primary-element pairing and SIL-rated project support. Contact Seven Star LLC today to secure genuine, factory-warrantied ABB flow instrumentation for your next project in Muscat, Sohar, Salalah or anywhere in the Sultanate of Oman.

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