YOKOGAWA

YOKOGAWA Process Instruments: Precision, Reliability, and Innovation

Product Series Overview
YOKOGAWA , a global leader in industrial automation since 1915, offers an extensive portfolio of process instruments renowned for high stability, reliability, and cutting-edge measurement technologies. Its product lines span field instruments, controllers, analyzers, and calibration tools, supporting critical applications in oil & gas, chemical, pharmaceutical, and environmental industries.

Core Product Series

1. Field Instruments

   • Pressure Transmitters:

     • Series: EJA (e.g., EJA120A), EJX (e.g., EJX910A), and P.

     • Features: Utilize DPharp digital sensor technology (silicon resonant sensor) for ±0.04% accuracy, 45+ years of expertise in pressure measurement, and long-term stability. Ideal for harsh environments.

   • Flow Meters:

     • Types: Electromagnetic (ADMAG AXF/SE), Vortex (digitalYEWFLO), Ultrasonic (US300), Coriolis (ROTAMASS 3-series).

     • Advantages: 100+ years of flow measurement experience, multi-variable capabilities (e.g., simultaneous flow/temperature output), and Foundation Fieldbus/HART/Modbus support for digital integration1.

   • Temperature Transmitters:

     • Series: YTA110, YTA310, YTA70.

     • Features: Simplify wiring, enable advanced diagnostics, and support flexible mounting (field/head-mounted).

   • Level Transmitters: Radar, guided-wave radar, and ultrasonic sensors for diverse liquid/gas applications.

2. Controllers, Recorders & Data Acquisition

   • Paperless Recorders: DXAdvanced series (e.g., DX1000/2000) for high-speed data logging.

   • Controllers: YS1000 single-loop controllers for precision process control.

   • Calibrators:

     • CA300/CA700 Series: Portable calibrators with ±0.01% pressure accuracy and silicon resonant sensors. Features include step/sweep scanning, IP54 ruggedness, and automated calibration workflows.

     • CA71: Multi-functional process calibrator for voltage/current/RTD/TC simulation and measurement.

3. Analytical Instruments

   • Gas Analyzers: Laser-based systems for O₂, CO₂, and hydrocarbons; AGA gas flow computation for oil/gas applications.

   • Liquid Analyzers: pH/ORP, conductivity, dissolved oxygen sensors with AAIMS (Advanced Analyzer Info Management System) for real-time KPI monitoring and predictive maintenance.

4. Valve & Communication Devices

   • Valve Positioners: YVP110 with 40+ years of expertise in control reliability.

   • Wireless Adaptors: ISA100-compliant for reduced infrastructure costs.

Key Product Advantages

• Ultra-High Precision & Stability:
  Proprietary DPharp/Silicon Resonant Sensor technology enables industry-leading accuracy (e.g., ±0.01% in CA700 calibrators)245. This ensures consistent performance in critical processes like gas flow compensation.

• Robustness for Demanding Environments:
  Instruments meet IP54+ standards (dust/water resistance) and endure extreme temperatures/pressures. Example: EJX transmitters support 3000 kPa ranges.

• Digital Transformation Ready:

  • Fieldbus Integration: Reduces wiring costs via multi-drop connections (e.g., Foundation Fieldbus in digitalYEWFLO).

  • IIoT Compatibility: Supports Modbus, HART, and BRAIN protocols for data sharing with SCADA/DCS systems (e.g., ProSafe-RS safety systems).

  • Advanced Diagnostics: Self-diagnosis for pipeline vibration/flow anomalies and predictive maintenance (e.g., AAIMS for analyzers).

• Operational Efficiency:

  • Multi-variable Measurement: Single devices (e.g., EJX910A transmitters) measure pressure/temperature/flow, cutting hardware needs.

  • Automated Calibration: CA calibrators feature step/sweep functions and data logging to streamline field maintenance.

• Industry-Specific Solutions:
  Tailored for oil/gas upstream (e.g., ProSafe-RS safety systems with SIL3 certification) and environmental monitoring (e.g., distributed temperature sensors).