SAI143-H03 | Analog Input Module | Yokogawa SAI143

Overview

The Yokogawa SAI143-H03 is an Analog Input Module designed for use in safety node units and safety control units. This module specializes in receiving 4 to 20 mA signals from field devices, providing reliable input for industrial applications.

Key Specifications

• Model: SAI143 (*1)
• Number of Input Channels: 16 channels, module isolation (*5)
• Rated Input Range: 4 to 20 mA
• Permissible Input Range: 0 to 25 mA
• Input Impedance:
  • Power-ON: 250 Ω + Current value
  • Power-OFF: Minimum 500 kΩ
• Rated Accuracy:
  • SAI143-S: ±16 µA (Input range 1 to 23 mA)
  • SAI143-H: ±16 µA (Input range 0.05 to 23 mA) (*3) (*4)
• Data Update Frequency: 40 ms
• Temperature Drift: ±16 µA/10 °C
• Transmitter Power Supply:
  • Minimum: 16.15 V (at 20 mA)
  • Maximum: 26.4 V (at 0 mA, Output current limit: 25 mA)
• Connection Type: 2/4-wire setting, individually configurable by setting pins
• Withstand Voltage: 1.5 kV AC between input signal and system for 1 minute (*2)
• Maximum Current Consumption:
  • 5 V system: 320 mA
  • 24 V system: 550 mA
• Weight:
  • Approx. 0.34 kg (for pressure clamp terminal block or MIL cable)
  • Approx. 0.39 kg (with signal cable interface adapter)
• External Connection Types:
  • Pressure clamp terminal
  • MIL cable
  • Dedicated signal cable
• Transmitter Power Supply ON/OFF Function: Available in 2-wire setting for all 16 channels simultaneously (*7)

Model and Suffix Codes

• Model Description: SAI143 Analog Input Module (4 to 20 mA, 16 channels, module isolation)
• Suffix Codes:
  • -S: Standard type
  • -H: With HART communication [Release: R1.02.00] (*1)
  • 5: For pressure clamp terminal block or MIL cable without explosion protection
  • 6: With signal cable interface adapter and without explosion protection (*2)
  • E: For pressure clamp terminal block or MIL cable with explosion protection
  • F: With signal cable interface adapter and explosion protection (*2)
  • 3: With ISA Standard G3 and temperature (-20 to 70 ºC)
  • C: With ISA Standard G3 and high-density installation (-20 to 70 ºC) (*5)

Notes

• (*1) No Zener barriers can be connected to this module. Use an isolation barrier for intrinsic safety applications.
• (*2) 500 V AC when using a dedicated signal cable.
• (*3) ±32 µA (input range under 0.05 mA) for style code S3 or later.
• (*4) Rated accuracy for style code S3 or later is ±16 µA (Input range 0.05 to 23 mA).
• (*5) Restrictions apply for use at ambient temperatures above 60°C.
• (*6) Maximum voltage drop in input protection circuit is 0.45 V.
• (*7) This function allows resetting the alarm state of Fire and Gas devices by turning off the transmitter power supplied from this module.