YOKOGAWA SAI143-H63

Product Name:​ ProSafe-RS 16-Channel Isolated 4–20 mA Input Module with Enhanced HART and Redundancy (Successor to H33)
Product Introduction:​ Improved version of SAI143-H33 with same electrical core but updated HART routing, ISA G3coating option and better redundant system behavior.
Category:
Description
Technical Specifications:
  • Channels: 16 isolated 4–20 mA
  • Accuracy: ±16 µA
  • Input Range: 4–20 mA nominal, 0–25 mA allowed
  • Impedance: 250 Ω on, 500 kΩ off
  • Update: 40 ms
  • Isolation: 1.5 kV AC
  • HART: Yes, per-channel device support
  • Temp Range: -20 to +70 °C (ISA G3 corrosive environment compliant)
  • Housing: Same 130 × 107.5 × 32.8 mm DIN rack slice
    Functional Features:​ All 16 channels transmitter-powered simultaneously, pin-selectable 2-wire/4-wire, PRM (Plant Resource Manager) integration, enhanced EMC immunity.
    Application Scenarios:​ Safety-critical compressor anti-surge pressure inputs, tank farm level gauges, boiler feedwater flow in power plant SIS.
    Notes:​ Direct mechanical/electrical drop-in for H33 in most racks; always align firmware of controller with H63 M-code.
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