Process Control Signal Acquisition Solution – YOKOGAWA AAI135-S00 S2 | CENTUM VP / CS 3000 Series
Where This Product Is Used
The YOKOGAWA AAI135-S00 S2 Analog Input Module is deployed at the heart of distributed control systems (DCS) in some of the world’s most demanding continuous-process industries. When a refinery’s crude distillation unit needs to monitor dozens of temperature and pressure transmitters simultaneously, or when a chemical plant’s reactor loop depends on millisecond-accurate 4–20 mA signal acquisition, this module is the interface between the physical process and the control logic.
Typical installation environments include:
- Oil & Gas Refineries – crude distillation, hydrocracking, and gas separation units where multi-channel analog acquisition feeds safety instrumented systems (SIS) and advanced process control (APC) layers.
- Petrochemical & Chemical Plants – reactor temperature profiling, flow measurement, and level monitoring across CENTUM VP / CS 3000 field control stations (FCS).
- Power Generation – boiler drum level, turbine inlet pressure, and feedwater flow monitoring in coal-fired, gas-fired, and combined-cycle plants.
- Pulp & Paper Mills – digester pressure and temperature acquisition, bleaching stage pH and flow control.
- Pharmaceutical & Biotech – GMP-compliant batch process monitoring where signal integrity and audit-trail traceability are mandatory.
- Water & Wastewater Treatment – influent flow, dissolved oxygen, and chemical dosing feedback loops integrated into CENTUM VP supervisory control.
In every one of these environments, the AAI135-S00 S2 serves as the trusted front-end I/O that converts field transmitter signals into engineering-unit values the DCS controller can act upon — reliably, repeatedly, and without drift.
Technical Specifications
The following specifications are based on YOKOGAWA’s published documentation for the AAI135 series. Always cross-reference with your project’s instrument data sheets before installation.
- Model Number: AAI135-S00 S2
- SKU / Part Number: AAI135-S00 S2
- Manufacturer: YOKOGAWA Electric Corporation
- Compatible Platform: CENTUM VP, CENTUM CS 3000
- Module Type: Analog Input (AI)
- Signal Type: 4–20 mA DC (current input)
- Number of Channels: Multi-channel (refer to YOKOGAWA AAI135 datasheet for channel count)
- Isolation: Channel-to-channel and channel-to-bus isolation (refer to datasheet)
- Communication Bus: YOKOGAWA V-net / ER Bus (FCS backplane)
- Mounting: Field Control Station (FCS) node unit backplane
- Operating Temperature: Refer to YOKOGAWA AAI135 series datasheet
- Suffix Code S2: Indicates specific hardware revision / option configuration — verify against your system’s BOM
Note: Konmask.com does not fabricate or alter manufacturer specifications. All technical data should be verified against the official YOKOGAWA AAI135 product datasheet and your site-specific engineering documents.
Why Engineers Specify This Model
Experienced DCS engineers and procurement specialists choose the AAI135-S00 S2 over generic alternatives for three core reasons:
- Platform Lock-In Compatibility: CENTUM VP and CS 3000 FCS nodes require exact-match I/O modules. A non-genuine or mismatched module will fail hardware diagnostics, trigger FCS faults, and may void YOKOGAWA’s system support agreement. The AAI135-S00 S2 is the OEM-specified part — no workarounds required.
- Suffix Code Precision: The S2 suffix designates a specific hardware option set. Substituting an S00 without S2 or a different suffix can result in incompatible terminal block wiring, incorrect HART pass-through behavior, or firmware mismatch errors during FCS download.
- Proven Field Reliability: The AAI135 series has accumulated millions of operating hours across global CENTUM installations. Its signal conditioning circuitry is designed for the electrical noise environment of industrial field cabinets, maintaining accuracy even in the presence of VFD interference and ground loops.
- Lifecycle Continuity: Many plants running CS 3000 systems are in long-term operation. Sourcing exact-match spare modules like the AAI135-S00 S2 extends system life without requiring costly FCS node upgrades or re-engineering.
Complete System Bill of Materials
The AAI135-S00 S2 operates within a YOKOGAWA CENTUM FCS node. A complete spare-parts strategy for this I/O slot typically includes the following associated components:
- AAI135-S00 S2 – Analog Input Module (this item)
- AMM12 / AMM22 – Node Unit (NU) for FCS I/O expansion
- ANB10S / ANB11S – Node Bus Interface Unit
- Terminal Block (TB) – Model-specific terminal assembly for AAI135 field wiring
- Cable Assembly – I/O module-to-terminal block ribbon or individual wiring harness
- FCS Power Supply Module – Redundant PSU for the FCS node housing the AAI135
Contact Konmask.com with your full FCS node configuration and we will prepare a matched spare-parts quotation covering all associated modules.
Compliance & Industry Standards
YOKOGAWA designs the AAI135 series to meet the requirements of major international standards applicable to process automation I/O equipment:
- IEC 61511 – Functional Safety for Process Industry Sector (SIL-rated loop compatibility — verify SIL rating in YOKOGAWA’s safety manual)
- IEC 61000 – Electromagnetic Compatibility (EMC) for industrial environments
- CE Marking – European conformity for electrical equipment
- ATEX / IECEx – Consult YOKOGAWA documentation for intrinsically safe or explosion-proof barrier requirements when used in hazardous areas
- NAMUR NE 43 – Standardized signal levels for transmitter fault indication (4–20 mA with NAMUR limits)
Compliance verification is the responsibility of the end-user’s engineering team. Konmask.com provides sourcing support only and does not certify system-level compliance.
Quality Assurance & Sourcing
Konmask.com specializes in the procurement of industrial automation components for MRO (Maintenance, Repair & Operations) and project-based requirements. Our quality assurance process for modules like the AAI135-S00 S2 includes:
- Source Verification: We trace each unit to its supply chain origin and document provenance records available upon request.
- Visual & Physical Inspection: Every module is inspected for label integrity, connector condition, housing damage, and counterfeit indicators before dispatch.
- Functional Testing (where applicable): Select modules undergo bench-level power-on and communication checks prior to shipment.
- Original Packaging Preference: We prioritize units in original YOKOGAWA packaging with intact serial number labels and revision markings.
- Documentation Package: Certificate of conformance, inspection report, and packing list provided with every shipment.
How to Source This Part
Konmask.com operates as a B2B inquiry-driven platform. To request a quotation for the YOKOGAWA AAI135-S00 S2:
- Email: Send your RFQ to support@konmask.com with part number, required quantity, and delivery timeline.
- Phone / WhatsApp: +0086 19859288691 — our team responds to urgent MRO and shutdown-maintenance inquiries.
- Online Inquiry Form: Use the contact form on Konmask.com to submit your requirement directly.
Please include your CENTUM system version (VP or CS 3000), FCS node model, and any existing spare-parts list to help us provide the most accurate quotation and compatibility confirmation.
Application-Specific FAQ
Q: Can the AAI135-S00 S2 be used interchangeably between CENTUM CS 3000 and CENTUM VP systems?
A: The AAI135 series was originally designed for CS 3000 and is also supported in CENTUM VP in backward-compatible configurations. However, firmware versions and FCS node hardware revisions affect compatibility. Always verify with YOKOGAWA’s compatibility matrix or your system integrator before substitution.
Q: What does the S2 suffix mean on the AAI135-S00 S2?
A: YOKOGAWA uses suffix codes to designate hardware options, revision levels, and regional certifications. S2 indicates a specific option configuration for this module. Substituting a unit without the S2 suffix may result in wiring incompatibility or FCS configuration errors. Always match the full part number including suffix.
Q: Is the AAI135-S00 S2 HART-capable?
A: HART pass-through capability depends on the specific AAI135 variant and the FCS firmware version. Refer to YOKOGAWA’s AAI135 datasheet and your FCS release notes to confirm HART support for your configuration.
Q: How quickly can Konmask.com ship the AAI135-S00 S2?
A: Lead time depends on current stock availability. Contact us with your requirement and we will confirm availability and estimated delivery within one business day. We support urgent shutdown and turnaround (TAR) procurement timelines.
Q: Do you provide a warranty on this module?
A: Yes. Konmask.com provides a limited warranty covering physical defects and DOA (dead-on-arrival) units. Warranty terms are confirmed at the time of quotation. We do not warrant against damage caused by incorrect installation, incompatible system configuration, or field electrical faults.
Q: Can you supply multiple AAI135-S00 S2 units for a plant-wide spare-parts program?
A: Yes. We support bulk and scheduled-delivery procurement programs. Contact us with your annual consumption estimate and we will discuss framework agreements and volume pricing.
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Contact: support@konmask.com | +0086 19859288691
