ASI133-S00

Overview

The Yokogawa ASI133-S00 is an analog input module with a built‑in barrier, designed for isolated current signal measurement. It supports 8 channels, HART communication, and includes ISA Standard G3 and extended temperature options.

Module Configuration

• Model: ASI133 (Analog Input Module with Built‑In Barrier, 8‑channel, isolated, 4 to 20 mA)

• Suffix –S: Standard type

• Suffix 0: Always 0

• Barrier Type: Isolated interface

• HART Communication: Available

Input Specifications

• Number of Input Channels: 8, isolated

• Input Signal: 4 to 20 mA

• Allowable Input Current: 22.5 mA

• Withstanding Voltage: 1500 V AC

• Input Resistance (Power ON, 2‑wire): 400 Ω (I = 20 mA) to 750 Ω (I = 4 mA)

• Input Resistance (Power ON, 4‑wire): 485 Ω (I = 20 mA) to 925 Ω (I = 4 mA)

• Input Resistance (Power OFF): 1 MΩ or larger

• Accuracy: ±16 µA

• Step Response Time: 100 ms

• Data Update Period: 10 ms

• Transmitter Power Supply: 16 V DC or higher (output current limit: 20 mA)

• Maximum Normal Mode Input Voltage (4‑wire transmitter): 25 V

• Temperature Drift: ±16 µA / 10 °C

Electrical Characteristics

• Maximum Current Consumption (5 V DC): 150 mA

• Maximum Current Consumption (24 V DC): 450 mA

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