Yokogawa AAI135 Analog Input Module Thoughtful service Original

Brand：Yokogawa Electric

Item No.：Yokogawa AAI135

Product origin：Japan

Dimensions:107.5 × 32.8 × 130 mm

Weight:0.3 kg

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Product Introduction：

Overview

The Yokogawa AAI135 is an isolated analog input module designed for use in process control and DCS systems. It accepts standard transmitter current signals (4-20 mA) and provides channel isolation for high signal integrity.

General Information

Model / Type: AAI135 (8-channel version)

Manufacturer: Yokogawa

Country of Origin: Japan

Product Category: Analog Input Module – 4-20 mA, isolated channels

Applications: Process automation, DCS I/O racks, redundant I/O configurations

Electrical & Functional Specifications

Number of Input Channels: 8 isolated channels

Input Signal: 4 to 20 mA DC

Input Resistance (Power ON): ~270 Ω at 20 mA, ~350 Ω at 4 mA

Input Resistance (Power OFF): ≥ 500 kΩ

Accuracy: ± 16 µA

Data Update Period: ~10 ms

Step Response Time: ~100 ms

Transmitter Power Supply (2-wire type): Minimum ~19.0 V at 20 mA; Maximum ~25.5 V at 0 mA (output current limit ~25 mA)

Drift due to Ambient Temperature Change: ±16 µA per 10 °C

Maximum Current Consumption: ≈310 mA @ 5 V DC; ≈450 mA @ 24 V DC

Withstanding Voltage (Input ↔ System): ~1500 V AC for 1 minute

Environmental & Physical Specifications

Operating Temperature Range: −20 °C to +70 °C (varies by suffix version)

Weight: 0.3 kg

Dimension: 107.5 × 32.8 × 130 mm

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