Temperature Measurement Solution – YOKOGAWA AMM22T | CENTUM Series
The YOKOGAWA AMM22T is a Thermocouple Input Multiplexer Module designed for high-density, high-accuracy temperature acquisition in distributed control systems. Engineered for demanding industrial environments, it integrates seamlessly into YOKOGAWA CENTUM VP and CS 3000 DCS architectures, delivering reliable multi-channel thermocouple signal conditioning at the field I/O level.
Where This Product Is Used
The AMM22T is specified by process engineers and control system integrators across industries where precise, multi-point temperature monitoring is critical:
- Oil & Gas Refining: Reactor temperature profiling, distillation column monitoring, and fired heater control loops.
- Petrochemical Plants: Cracker furnace zone control, heat exchanger performance tracking.
- Power Generation: Boiler drum temperature arrays, turbine exhaust monitoring, and steam header control.
- Pharmaceutical Manufacturing: Autoclave validation, clean-in-place (CIP) temperature verification, and batch reactor control.
- Pulp & Paper: Dryer section temperature profiling and digester control.
- Food & Beverage: Pasteurization loop monitoring and sterilization validation.
- Chemical Processing: Exothermic reaction monitoring and distillation overhead temperature control.
Technical Specifications
- Model: AMM22T
- Manufacturer: YOKOGAWA Electric Corporation
- Series: CENTUM VP / CS 3000 Field Control Station (FCS) I/O
- Module Type: Thermocouple (TC) Input Multiplexer
- Input Channels: 16 channels (multiplexed)
- Thermocouple Types Supported: J, K, E, T, R, S, B, N (IEC/JIS)
- Measurement Range: Dependent on TC type (e.g., K-type: −200 to +1372 °C)
- Accuracy: ±0.1% of span (typical)
- Cold Junction Compensation (CJC): Built-in automatic CJC
- Isolation: Channel-to-channel and channel-to-bus isolation
- Communication: V-net / ER Bus (CENTUM FCS backplane)
- Power Supply: Supplied via FCS backplane (no external power required)
- Operating Temperature: 0 to +55 °C
- Humidity: 5 to 95% RH (non-condensing)
- Dimensions: Standard CENTUM I/O module form factor
- Weight: Approx. 500 g
- Certifications: CE, UL/cUL (refer to YOKOGAWA datasheet GS 33J60B20-01E)
Why Engineers Specify This Model
- High Channel Density: 16 TC inputs per module slot reduces cabinet footprint and wiring cost versus discrete transmitters.
- Native DCS Integration: Plug-and-play compatibility with CENTUM VP/CS 3000 FCS eliminates signal conditioning hardware and simplifies loop commissioning.
- Built-in CJC: Eliminates external reference junction hardware, reducing BOM cost and potential failure points.
- Proven Field Reliability: YOKOGAWA’s CENTUM platform has >30 years of installed base in critical process industries.
- Diagnostic Capability: Module-level self-diagnostics and open/short TC detection reduce unplanned downtime.
- Hot-Swap Support: Online replacement without process shutdown (FCS redundancy configuration).
Complete System Bill of Materials
A typical CENTUM VP FCS temperature acquisition node using the AMM22T includes:
- YOKOGAWA AMM22T — Thermocouple Input Multiplexer Module (this item)
- YOKOGAWA AFV10S / AFV30S — Field Control Unit (FCU) or Node Unit
- YOKOGAWA ANB10S — Node Interface Unit (NIU) for remote I/O
- YOKOGAWA AKB10 / AKB20 — I/O Module Baseplate (16-slot)
- YOKOGAWA AIP588 — I/O Power Supply Module
- YOKOGAWA AER111-S / AER115-S — Ethernet Interface Card (for HIS/EWS connectivity)
- Thermocouple extension cables (compensating cable, TC type matched)
- Terminal block / marshalling cabinet (customer-supplied)
Contact Konmask.com for complete FCS BOM quotation and compatibility verification.
Compliance & Industry Standards
- IEC 61511 — Functional Safety for Process Industry SIS (SIL assessment reference)
- IEC 61508 — Functional Safety of E/E/PE Safety-related Systems
- IEC 60584 — Thermocouples: Reference tables and tolerances
- CE Marking — EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU
- UL/cUL Listed — UL 508 Industrial Control Equipment
- RoHS Compliant — Directive 2011/65/EU
- YOKOGAWA Quality Management System — ISO 9001 certified manufacturing
Quality Assurance & Sourcing
Konmask.com specializes in genuine, traceable industrial automation components for DCS, PLC, and process control applications. Every YOKOGAWA AMM22T unit offered through our platform is:
- Sourced from authorized YOKOGAWA distribution channels or verified surplus with full traceability documentation.
- Inspected for physical integrity, label authenticity, and firmware revision prior to dispatch.
- Shipped with original YOKOGAWA packaging where available, or ESD-safe anti-static packaging.
- Supported by our 90-day functional warranty against manufacturing defects.
- Accompanied by a Certificate of Conformance (CoC) upon request.
How to Source This Part
- In-Stock Orders: Add to cart and complete checkout. Same-day dispatch for orders placed before 14:00 CST (Mon–Fri).
- Bulk / Project Quotation: Email [email protected] with your project BOM for volume pricing and lead time confirmation.
- Repair / Exchange: We offer exchange programs for failed AMM22T modules — contact us with your module serial number.
- Expedited Sourcing: If not currently in stock, our procurement team can source from global YOKOGAWA authorized channels within 5–15 business days.
- Phone / WhatsApp: +0086 19859288691 (English & Chinese supported)
Application-Specific FAQ
Q: Is the AMM22T compatible with CENTUM CS 3000 as well as CENTUM VP?
A: Yes. The AMM22T is compatible with both CENTUM CS 3000 and CENTUM VP FCS I/O baseplates. Verify your FCS generation and baseplate model (AKB10/AKB20) before ordering.
Q: Can the AMM22T accept millivolt (mV) inputs in addition to thermocouples?
A: The AMM22T is optimized for thermocouple inputs with integrated CJC. For raw mV or RTD inputs, refer to YOKOGAWA AMM12S (RTD) or AMM22S (analog mV) modules.
Q: What is the scan rate for all 16 channels?
A: Scan rate is determined by the FCS control period setting (typically 0.5 s or 1.0 s). All 16 channels are updated within each control period via internal multiplexing.
Q: Do you provide YOKOGAWA engineering support or configuration assistance?
A: Konmask.com provides hardware supply and basic application guidance. For CENTUM VP system engineering, we recommend engaging a YOKOGAWA-certified system integrator. We can provide referrals upon request.
Q: What is the lead time for out-of-stock units?
A: Typical sourcing lead time is 5–15 business days from global YOKOGAWA authorized channels. Expedited options available — contact us for confirmation.
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Contact: [email protected] | +0086 19859288691
