The Yokogawa AAI143-S00/A4S00 delivers exceptional analog signal conversion for distributed control applications requiring reliable performance. This precision module integrates seamlessly into CENTUM VP systems for accurate process monitoring and control. Engineers select this unit when they need flexible transmitter support with HART diagnostic capabilities. You can depend on the Yokogawa AAI143-S00/A4S00 for stable operation even in electrically noisy industrial environments. Its compact form factor simplifies installation within existing control system architectures.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | Yokogawa AAI143-S00/A4S00 |
| Product Type | High-Precision Analog Input Module |
| Manufacturer | Yokogawa Electric Corporation |
| Series Compatibility | CENTUM VP, ProSafe-RS, CENTUM CS 3000 |
| Suffix Code -S | Standard type |
| Suffix Code -00 | Always 0, Basic type configuration |
| Suffix Code /A4S00 | Special coating and termination option |
| Number of Channels | 16 non-isolated inputs |
| Input Signal Types | 4 to 20 mA DC and 1 to 5 V DC |
| Input Impedance (Current Mode) | 250 Ω ±0.1% |
| Input Impedance (Voltage Mode) | 1 MΩ |
| Transmitter Compatibility | Supports both 2-wire and 4-wire transmitters |
| Protocol Support | Fully compatible with HART protocol |
| Redundancy Support | Compatible with dual-redundant configurations |
| Noise Immunity | Stable operation in noisy industrial environments |
| Data Update Rate | Fast refresh for real-time monitoring |
| Accuracy | High precision for critical measurements |
| Power Consumption | 4.5 W typical |
| Operating Temperature | -10°C to +55°C (14°F to 131°F) |
| Storage Temperature | -20°C to +70°C (-4°F to 158°F) |
| Dimensions (W x H x D) | 3.7 cm x 13.8 cm x 12.1 cm (1.46 x 5.43 x 4.76 inches) |
| Net Weight | 0.4 kg (0.88 lbs) |
| Shipping Weight | 2.0 kg (4.41 lbs) including packaging |
| Mounting Options | DIN rail or backplane in node unit |
| Termination Type | Pressure clamp terminal block |
| Wire Gauge Range | 18 to 22 AWG recommended |
| Certifications | CE, UL, CSA, FM Class I Div 2 |
Input Signal Configuration
The Yokogawa AAI143-S00/A4S00 accepts both current and voltage signals without requiring external converters. You can connect 2-wire loop-powered transmitters directly to the input channels. The module also accommodates 4-wire transmitters with separate power supplies for maximum flexibility.
| Input Mode | Signal Range | Transmitter Type | Typical Applications |
|---|---|---|---|
| Current Mode | 4 to 20 mA DC | 2-wire loop-powered | Pressure, temperature, flow |
| Current Mode | 4 to 20 mA DC | 4-wire separately powered | Analytical instruments |
| Current with HART | 4 to 20 mA + digital | Smart transmitters | Diagnostic-enabled devices |
| Voltage Mode | 1 to 5 V DC | Proximity sensors | Position feedback |
| Voltage Mode | 1 to 5 V DC | Signal conditioners | Isolated signal interface |
Transmitter Compatibility
The Yokogawa AAI143-S00/A4S00 works seamlessly with both 2-wire and 4-wire transmitter configurations. You can mix transmitter types across the 16 channels without compatibility concerns. This flexibility simplifies system design and reduces inventory requirements.
| Transmitter Type | Wiring Configuration | Power Source | Application Considerations |
|---|---|---|---|
| 2-Wire Loop-Powered | Two wires carry power and signal | External 24 V DC supply | Most common for field instruments |
| 2-Wire with HART | Two wires with digital overlay | External 24 V DC supply | Provides diagnostic data |
| 4-Wire Separately Powered | Two signal wires, two power wires | Separate AC/DC supply | For high-power consumption devices |
| 4-Wire with HART | Four wires with digital overlay | Separate AC/DC supply | Complex analyzers and smart devices |
HART Communication Support
Full HART protocol compatibility enhances the diagnostic capabilities of the Yokogawa AAI143-S00/A4S00. You can access device health information and secondary variables from smart transmitters. The module simultaneously processes analog signals and digital communication without interference.
HART Protocol: Fully compatible with HART Revision 5, 6, and 7 devices
Digital Access: Read device diagnostics, calibration data, and status information
Multidrop Support: Multiple devices on single channel for wiring efficiency
Burst Mode: Configurable for high-speed data updates from critical instruments
Device Variables: Access up to 4 process variables per HART device
Configuration Compatibility: Works with Yokogawa FieldMate and AMS Device Manager
Diagnostic Alerts: Receive maintenance notifications from smart field devices
Redundancy Capabilities
The Yokogawa AAI143-S00/A4S00 supports dual-redundant configurations for critical control applications. You can configure redundant modules to ensure uninterrupted operation during module failure. This architecture maintains process control integrity for safety-critical and high-availability systems.
| Redundancy Configuration | Implementation | Availability Improvement |
|---|---|---|
| Module Redundancy | Primary and backup modules | 99.99% availability |
| Automatic Switchover | Seamless transfer on fault | No process interruption |
| Hot-Swap Support | Replace failed module online | Minimal maintenance downtime |
| Communication Redundancy | Dual communication paths | No data loss during switchover |
| Power Supply Redundancy | Redundant backplane power | Continuous module operation |
Noise Immunity Performance
Industrial environments contain significant electrical noise from motors, drives, and switching equipment. The Yokogawa AAI143-S00/A4S00 incorporates advanced filtering for stable operation in these conditions. You can trust accurate measurements despite nearby electrical interference.
Normal Mode Rejection: 60 dB at 50/60 Hz filters line-frequency noise
Common Mode Rejection: 120 dB at 50/60 Hz eliminates ground noise
Input Filtering: Digital low-pass filter configurable for application needs
Transient Protection: Surge withstand to 4 kV per IEC 61000-4-5
ESD Protection: 8 kV contact discharge per IEC 61000-4-2
Radiated Immunity: 10 V/m from 80 MHz to 1 GHz
Conducted Immunity: 10 V from 150 kHz to 80 MHz
Physical Characteristics and Installation
The Yokogawa AAI143-S00/A4S00 features an extremely compact design that conserves valuable control panel space. Its dimensions of only 3.7 cm width allow high-density installation in node units. You can mount multiple modules side-by-side without additional spacing requirements.
| Physical Parameter | Value | Installation Benefit |
|---|---|---|
| Width | 3.7 cm (1.46 inches) | High-density mounting |
| Height | 13.8 cm (5.43 inches) | Standard sub-rack fit |
| Depth | 12.1 cm (4.76 inches) | Shallow enclosure compatibility |
| Net Weight | 0.4 kg (0.88 lbs) | Easy handling during installation |
| Panel Space | Minimal per channel | Maximum I/O density |
| DIN Rail Mounting | 35 mm rail compatible | Standard industrial practice |
| Airflow Requirement | Natural convection | No forced cooling needed |
Performance and Accuracy
The module provides high-precision measurement for critical control loops and monitoring applications. You can rely on the Yokogawa AAI143-S00/A4S00 for consistent accuracy across all 16 channels. Its fast data update rate ensures real-time visibility into process conditions.
Resolution: 16-bit conversion for fine measurement granularity
Accuracy: ±0.1% of span ensures reliable control loop performance
Update Rate: 100 samples per second for responsive monitoring
Temperature Stability: ±75 ppm/°C maintains accuracy across temperature swings
Long-Term Drift: ±0.05% per year for consistent calibration intervals
Step Response: 95% of final value within 20 ms
Overrange Detection: Software flags inputs beyond normal operating range
Details
| Weight | 0.7 kg |
|---|---|
| Dimensions | 2.5 × 20.3 × 15.2 mm |
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