YOKOGAWA SAI143-H63

YOKOGAWA SAI143-H63

The YOKOGAWA SAI143-H63 is a robust, high-precision analog input module engineered for industrial process control and safety instrumented systems (SIS), notably Yokogawa’s CENTUM and ProSafe-RS platforms. Designed to deliver reliable data acquisition in harsh environments, it stands out as a top choice for sectors like chemical, petrochemical, power generation, and oil & gas.

Core Technical Specifications

• Channel Configuration: 16 electrically isolated channels, supporting dual redundancy for maximum system uptime.
• Input Signal: 4–20 mA standard analog current; permissible range 0–25 mA for wider signal tolerance.
• Accuracy & Stability: Rated accuracy ±16 µA (0.05–23 mA); temperature drift ±16 µA per 10°C, ensuring consistent performance across fluctuating temperatures.
• Input Impedance: 250 Ω + variable current value (power-on); ≥500 kΩ (power-off) for circuit protection.
• Data Processing: 40 ms update frequency for real-time data capture.
• Transmitter Power: 16.15 V (min at 20 mA) to 26.4 V (max at 0 mA); 25 mA current limit to prevent overload.
• Isolation: 1.5 kV AC for 1 minute (input-to-system), safeguarding against electrical interference.
• Communication: Built-in HART support (1 modem per channel) for digital diagnostics and remote configuration.
• Physical & Environmental: Dimensions 130 × 107.5 × 32.8 mm; weight 0.34 kg; operating temperature -20°C to +70°C; compatible with pressure clamp, MIL, or dedicated signal cables.

Key Advantages for Industrial Applications

The YOKOGAWA SAI143-H63 excels in reliability and flexibility. Its 16 isolated channels reduce crosstalk, while HART integration enables seamless device management. Dual redundancy support minimizes downtime, critical for safety-critical operations. With wide temperature tolerance and robust isolation, it performs reliably in extreme industrial conditions.