YOKOGAWA AMM32J S1 RTS Input Multiplexer Module | Replacement, Equivalent & Selection Guide
The YOKOGAWA AMM32J S1 is a precision RTS (Resistance Temperature Sensor) Input Multiplexer Module designed for use within YOKOGAWA’s CENTUM VP and CS 3000 Distributed Control Systems. It enables high-density temperature measurement by multiplexing multiple RTD/RTS sensor inputs into a single I/O channel — a critical component for process industries demanding accurate, reliable thermal monitoring.
At Konmask.com, we specialize in sourcing genuine, tested, and equivalent-grade automation components. This guide helps engineers and procurement teams make informed selection and replacement decisions.
Technical Specifications
- Manufacturer: YOKOGAWA Electric Corporation
- Part Number: AMM32J S1 (also referenced as AMM32J-S1)
- Module Type: RTS (Resistance Temperature Sensor) Input Multiplexer
- Compatible Systems: YOKOGAWA CENTUM VP, CENTUM CS 3000
- Input Type: RTD / Resistance Temperature Detector (2-wire, 3-wire, 4-wire)
- Channel Multiplexing: Multi-channel RTS input aggregation
- Communication: Internal DCS bus (YOKOGAWA proprietary)
- Mounting: DIN rail / rack-mount per CENTUM I/O nest standard
- Operating Temperature: 0°C to 55°C
- Power Supply: Supplied via I/O nest backplane
- Weight: Approx. 100 g
- Compliance: CE, RoHS (verify with current YOKOGAWA datasheet)
Compatible Replacement & Equivalent Models
When the AMM32J S1 is unavailable or end-of-life, the following alternatives may be considered depending on system configuration and firmware version:
- YOKOGAWA AMM32J – Base variant; confirm suffix compatibility with your I/O nest revision
- YOKOGAWA AMM12J – Single-channel RTS input module; suitable for lower-density applications
- YOKOGAWA AAM21J – Analog input module with RTD support; verify channel count requirements
- YOKOGAWA AMM22J – Alternative multiplexer variant; check firmware and nest compatibility
- Third-party equivalents – Modules from Emerson, Honeywell, or Siemens with equivalent RTD multiplexing capability may be integrated via signal conditioning; engineering review required
⚠ Always verify firmware version, I/O nest revision, and CENTUM system software compatibility before substituting modules.
Why Choose the Original Model
- Guaranteed system compatibility: Plug-and-play within YOKOGAWA CENTUM VP / CS 3000 without additional configuration
- Certified accuracy: Factory-calibrated RTD measurement with YOKOGAWA’s proprietary signal conditioning
- Long-term support: YOKOGAWA provides firmware updates and technical documentation for genuine modules
- Reduced commissioning risk: Eliminates integration uncertainty associated with third-party substitutes
- Warranty & traceability: Genuine parts include manufacturer traceability and warranty coverage
Typical Applications
- Oil & gas refinery temperature monitoring (reactors, heat exchangers, pipelines)
- Chemical plant process temperature control loops
- Power generation — boiler and turbine thermal monitoring
- Pharmaceutical manufacturing — precise temperature validation in GMP environments
- Pulp & paper — multi-zone temperature acquisition
- Water treatment — sensor aggregation for distributed monitoring points
System Compatibility
| DCS Platform | Compatibility | Notes |
|---|---|---|
| YOKOGAWA CENTUM VP | ✅ Full | Native support, recommended |
| YOKOGAWA CENTUM CS 3000 | ✅ Full | Verify I/O nest revision |
| YOKOGAWA CENTUM CS 1000 | ⚠ Partial | Engineering review required |
| Third-party DCS (Emerson, Honeywell) | ❌ Not native | Signal conditioning adapter needed |
Selection Guide
Use the following criteria to confirm the AMM32J S1 is the correct module for your application:
- Step 1 – Identify sensor type: Confirm your field sensors are RTD/RTS (e.g., Pt100, Pt1000). For thermocouple inputs, consider YOKOGAWA’s AMM series TC variants instead.
- Step 2 – Count input channels: Verify the number of RTS inputs required. The AMM32J supports multi-channel multiplexing; for fewer channels, AMM12J may suffice.
- Step 3 – Check I/O nest revision: Confirm your CENTUM I/O nest hardware revision accepts the AMM32J S1 suffix variant.
- Step 4 – Verify firmware: Ensure your CENTUM VP / CS 3000 system software version supports the AMM32J S1 module definition file (MDF).
- Step 5 – Confirm wiring configuration: 2-wire, 3-wire, or 4-wire RTD wiring must match module terminal configuration.
Quality Assurance & Sourcing
- All modules sourced through Konmask.com are inspected for physical integrity and label authenticity prior to dispatch
- Genuine YOKOGAWA modules are supplied with original packaging where available
- Refurbished / tested units are clearly identified and priced accordingly
- Batch traceability records available upon request for critical process applications
- Export compliance screening performed for all international orders
How to Order
- Online: Add to cart directly on this page — stock availability confirmed at checkout
- Email RFQ: support@konmask.com — include part number, quantity, and required delivery date
- Phone / WhatsApp: +0086 19859288691
- Lead time: In-stock items ship within 1–3 business days; sourced items typically 7–21 days
- Payment: T/T bank transfer, PayPal, and major credit cards accepted
- Shipping: DHL, FedEx, UPS express worldwide; sea freight available for bulk orders
Replacement & Compatibility FAQ
Q: Can the AMM32J S1 replace an AMM32J without the S1 suffix?
A: In most cases yes, but the S1 suffix may denote a hardware revision or option code. Verify with YOKOGAWA’s part number decoder or contact our technical team before ordering.
Q: Is the AMM32J S1 compatible with CENTUM VP R6.x?
A: Compatibility depends on the module definition file (MDF) included in your CENTUM VP software package. Confirm with your YOKOGAWA system integrator or contact Konmask for guidance.
Q: Can I use a third-party RTD multiplexer in place of the AMM32J S1?
A: Third-party modules are not natively supported by CENTUM VP. Integration requires signal conditioning and custom I/O mapping — this approach carries commissioning risk and is not recommended for safety-critical loops.
Q: Do you supply tested/refurbished AMM32J S1 modules?
A: Yes. Refurbished units are functionally tested and clearly labeled. Contact us for pricing and availability.
Q: What is the typical lead time for the AMM32J S1?
A: In-stock units ship within 1–3 business days. If sourcing is required, lead time is typically 7–21 business days. Contact us for real-time availability.
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Contact: support@konmask.com | +0086 19859288691
