Description
YOKOGAWA AAI835-H03 DCS Analog Input‑Output Module(with HART Protocol)
Product Dimensions：
The Yokogawa AAI835-H03 is an isolated, combination Analog Input/Output module designed for Yokogawa’s CENTUM VP and CENTUM CS 3000 Distributed Control System (DCS) platforms.
Product Detailed Description The AAI835 provides 4 analog input channels and 4 analog output channels in a single compact module. The -H suffix indicates full HART communication protocol support, allowing digital field device parameters (diagnostics, secondary variables) to pass through to the DCS engineering workstation alongside standard 4–20 mA signals. The 03 suffix specifies standard performance options (non-explosion-proof or standard industrial environment rating with basic channel isolation).
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | AAI835-H03 |
| Module Type | Analog Input/Output Module (4 Inputs / 4 Outputs) |
| Input Signal | 4 to 20 mA DC (Supports 2-wire / 4-wire transmitters) |
| Output Signal | 4 to 20 mA DC |
| HART Communication | Supported (-H variant) on both inputs and outputs |
| Isolation | Channel-to-channel and channel-to-system isolation |
| Accuracy | ±0.1% of full scale |
| Power Consumption | Max. 310 mA (5 V DC backplane supply) |
| System Compatibility | CENTUM VP / CENTUM CS 3000 Field Control Units (FCU) |
| Mounting | Installs into FIO (Field I/O) node units (e.g., ANB10D, ANB10S) |
Product Advantages
- Space-Efficient Combo Design: Combines 4 inputs and 4 outputs into a single slot, reducing the required cabinet footprint for small control loops or skid automation.
- Full HART Integration: Enables remote calibration, status monitoring, and predictive maintenance diagnostics for intelligent smart transmitters and control valves.
- Dual-Redundancy Capable: Supports dual-redundant configuration when installed in paired slots, ensuring continuous process operation even if one module fails.
- Hot-Swappable: Modules can be replaced while the system is powered and online, minimizing downtime during maintenance.
Important Considerations & Precautions
- Terminal Block Matching: Ensure the correct pressure-clamp or screw terminal block (e.g., KS cable or direct terminal block) is matched to the module suffix.
- Power Supply Sizing: Verify 24 V DC field power capacity when powering 2-wire transmitters through the input channels to prevent voltage drop.
- Explosion-Proof/G3 Conformal Coating: Confirm whether your application requires hazardous area certification (e.g., Option
/K4A00) or harsh environmental protection (/G3), as the standard -H03 variant may not carry ISA Class G3 corrosion coating unless explicitly ordered.
Product Applications
- Chemical & Petrochemical Processing: Local control loops requiring combined flow/pressure sensing and valve control.
- Package Skids & Compressor Units: Space-constrained control panels requiring mixed analog I/O count.
- Power & Utilities: Temperature/pressure monitoring paired with dampener or drive control signals.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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