ABB 81943A041-1 Industrial Pressure Sensor / Transmitter

• Mechanical Specifications:
  • Process connection: 1/2 NPT (male) or G 1/2 (male) (stainless steel 316L)
  • Housing material: Aluminum alloy (painted) or stainless steel 316L (corrosive environments)
  • Weight: 350g (aluminum housing); 500g (stainless steel housing)
  • Cable entry: M20 × 1.5 (threaded, for shielded cables)

Functional Features

• High Measurement Precision: ±0.1% FS accuracy and 0.01% FS resolution ensure reliable pressure data for critical process control (e.g., chemical reactions, fluid transfer).
• Rugged Industrial Design: IP65 protection and stainless steel 316L process connections resist corrosion, dust, and water ingress—suitable for chemical, offshore, and wastewater applications.
• HART Communication (Optional): Supports HART 7.0 protocol for remote configuration, calibration, and diagnostics (no need for on-site adjustment), reducing maintenance downtime.
• Wide Temperature Adaptability: Operates from -40°C to +85°C, maintaining accuracy across extreme temperature fluctuations (e.g., outdoor pipelines, high-temperature reactors).
• Overpressure Protection: Withstands 150% of full-scale pressure (short-term) without damage, preventing sensor failure from sudden pressure spikes.
• Two-Wire Efficiency: Two-wire 4–20mA output reduces wiring costs and simplifies integration with existing control systems (compatible with most industrial PLCs/DCS).

Application Scenarios

• Chemical & Petrochemical Industry: Measures pressure in reactor vessels, storage tanks, and pipelines (for acids, solvents, or hydrocarbons) to ensure process safety and prevent leaks.
• Water & Wastewater Treatment: Monitors pressure in water supply pipelines, sewage pumps, and filtration systems to optimize flow rates and detect blockages.
• Power Generation: Tracks pressure in steam boilers, cooling water circuits, and fuel lines (gas/coal-fired power plants) to maintain efficient, safe operation.
• Food & Beverage Industry: Uses food-grade process connections (optional) to measure pressure in mixing tanks, pasteurizers, and filling machines (complies with FDA standards).
• Oil & Gas Industry: Applied in upstream (wellhead pressure monitoring) and downstream (refinery distillation columns) operations—resists harsh chemicals and high vibrations.
• Manufacturing (Hydraulics/Pneumatics): Monitors pressure in hydraulic cylinders, pneumatic lines, and machine tools to ensure precise motion control and prevent equipment overload.