Product Overview
The Yokogawa AAI143 Analog Input Module is a high-density, high-precision signal acquisition device specifically designed for industrial process control. This module features 16 fully isolated 4-20mA input channels and supports HART communication as well as dual redundancy configurations. It is suitable for critical signal monitoring needs in industries such as oil and gas, chemicals, power generation, and pharmaceuticals. Its excellent voltage withstand capability (1500V AC) and flexible compatibility with 2-wire/4-wire transmitters make it an ideal choice for demanding industrial environments.
Core Functions and Product Details
1. Signal Acquisition and Isolation Performance
· Input Channels: 16 fully isolated channels supporting 4-20mA signals (maximum allowable current 24mA).
· Input Impedance:
· Power-on State: 270Ω (at 20mA) to 350Ω (at 4mA), including input protection circuit voltage drop (maximum 0.4V).
· Power-off State: ≥500kΩ.
· Accuracy: ±16μA, temperature drift ±16μA/10°C.
2. Transmitter Power Supply and Compatibility
· Power Supply Capability: 19.0~25.5VDC (output current limited to 25mA), compatible with 2-wire/4-wire transmitters via jumper settings.
· HART Communication: Supports HART protocol (requires EB401 remote node, firmware version Rev2 or higher).
3. Redundancy and Reliability
· Dual Redundancy Configuration: Supports system-level redundancy to ensure high availability.
· Voltage Withstand Performance: 1500V AC/1 minute between inputs and system (500V AC when using dedicated cables).
4. Electrical and Mechanical Specifications
· Power Consumption: 5V DC at 230mA, 24V DC at 540mA.
· Weight: 0.3kg, compact design suitable for high-density cabinets.
· Communication Interfaces: Pressure clamp terminals, MIL connector cables, or dedicated cables (KS1).
Industry Demands and Solutions
1. Oil and Gas
· Application: Pressure/flow transmitter signal collection in hazardous areas (Zone 0/1), requiring intrinsic safety barriers.
· Redundancy Design: Ensures continuous operation of wellhead control systems.
2. Chemicals and Pharmaceuticals
· Application: High-precision reactor temperature monitoring (±16μA accuracy), compliant with GMP data integrity standards.
· HART Communication: Enables remote instrument diagnostics and calibration.
3. Power Industry
· Application: Boiler feedwater valve current signal collection, withstanding high electromagnetic interference environments.
4. Water Treatment
· Application: Multi-channel pH/turbidity sensor signal integration, supporting 2-wire transmitters for simplified wiring.
Why Choose Yokogawa AAI143 Analog Input Module?
✅ High Density and Isolation
· 16 independent isolated channels prevent signal crosstalk and enhance system stability.
· 1500V AC voltage withstand design protects the control system from surge impacts.
✅ Flexible Compatibility
· Switchable between 2-wire/4-wire transmitters to accommodate diverse field devices.
· Supports MIL connectors and dedicated cables, simplifying industrial deployment.
✅ Industrial-Grade Reliability
· Dual redundancy configuration options minimize downtime risks.
· Wide temperature range design (-40°C to +70°C) adapts to extreme environments.
Take Action Now!
[Click Here to Get a Quote] → Obtain technical specifications, redundancy configuration options, and special pricing for the AAI143!
When you choose us, you will benefit from:
· Professional Service: We provide expert advice and comprehensive technical support to meet your needs.
· Competitive Pricing: We offer competitive prices to ensure high cost-effectiveness.
· Fast Delivery: We have standard models in stock, and expansion modules can be configured flexibly according to your requirements.
