Yokogawa SAI143-S53/A4S00 Analog Input Module

Overview

The Yokogawa SAI143-S53/A4S00 is a 16-channel analog input module. Engineers use it in process automation systems requiring precision and stability. It supports isolated 4–20 mA signals and provides fast, accurate signal processing. With robust EMI/RFI immunity and individual channel configuration, this module performs reliably in harsh industrial environments.

Technical Specifications

• Model Number: SAI143-S53/A4S00

• Manufacturer: Yokogawa

• Product Type: Analog Input Module

Input Characteristics

• Number of Channels: 16, isolated

• Input Signal Type: 4 to 20 mA DC

• Permissible Input Range: 0 to 25 mA

• Input Impedance:

• Power ON: 272.5 Ω (20 mA) to 362.5 Ω (4 mA)

• Power OFF: ≥ 500 kΩ

• Accuracy: ±0.1% of full scale

• Rated Accuracy: ±16 µA (for 0.05 to 23 mA input range)

• Resolution: 16 bits

• Temperature Drift: ±16 µA per 10°C

• Data Update Frequency: 40 ms

Power and Isolation

• Power Supply: 24 VDC ±10%

• Max Current Consumption:

• 5 V DC system: 320 mA max

• 24 V DC system: 550 mA max

• Transmitter Power Supply:

• 16.15 V min (at 20 mA)

• 26.4 V max (at 0 mA)

• Output current limit: 25 mA

• Withstanding Voltage: 1.5 kV AC (1 min) between input and system

Configuration and Environment

• 2/4-wire Setting: Individual setting per channel via pins

• Operating Temperature Range: -25°C to +70°C

• EMI/RFI Immunity:

• IEC 61000-4-3 (radiated immunity)

• IEC 61000-4-4 (fast transient)

Physical Characteristics

• Dimensions: 25 mm × 123 mm × 98 mm

• Weight: 0.39 kg