Process Signal Isolation Solution — YOKOGAWA MX3*D | Isolating Multiplexer Series
Where This Product Is Used
The YOKOGAWA MX3*D Isolating Multiplexer is deployed in high-integrity process control environments where signal integrity, ground loop elimination, and channel-to-channel isolation are non-negotiable. Typical installation sites include:
- Oil & Gas Upstream/Midstream: Wellhead RTU panels, SCADA marshalling cabinets, and pipeline telemetry systems requiring galvanic isolation between field transmitters and DCS inputs.
- Chemical & Petrochemical Plants: Hazardous-area signal conditioning for 4–20 mA loops in ATEX/IECEx zones, preventing ground loops across multi-unit process trains.
- Power Generation & Utilities: Turbine control panels and substation automation where high common-mode voltages demand robust channel isolation.
- Pharmaceutical & Food Processing: cGMP-compliant control rooms requiring traceable, noise-free analog signal transmission from sensors to historian systems.
- Water & Wastewater Treatment: Remote pump station I/O marshalling where long cable runs introduce common-mode interference.
- Semiconductor Fab & Advanced Manufacturing: Precision process monitoring where microvolt-level signal fidelity is critical for yield control.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | MX3*D |
| Manufacturer | YOKOGAWA Electric Corporation |
| Function | Isolating Multiplexer |
| Signal Type | Analog (4–20 mA / voltage, model-dependent) |
| Isolation Type | Galvanic, channel-to-channel & channel-to-bus |
| Isolation Voltage | Refer to YOKOGAWA MX3 Series datasheet (typically 500 V AC rms or higher) |
| Number of Channels | Multi-channel multiplexed (suffix-dependent) |
| Power Supply | 24 V DC (loop-powered or external, model-dependent) |
| Operating Temperature | 0 °C to +60 °C (storage: −25 °C to +70 °C) |
| Mounting | DIN rail (35 mm) |
| Weight | Approx. 800 g (module assembly) |
| Compliance | CE, RoHS; refer to YOKOGAWA certification documentation |
Note: The asterisk (*) in MX3*D denotes a suffix variant. Confirm exact suffix with your order documentation or contact Konmask for clarification.
Why Engineers Specify This Model
- Ground Loop Elimination: Galvanic isolation breaks ground loops that corrupt 4–20 mA signals in multi-grounded plant environments — a leading cause of unexplained process upsets.
- Signal Multiplexing: Consolidates multiple field channels into a single bus interface, reducing wiring complexity and cabinet footprint in marshalling panels.
- YOKOGAWA Ecosystem Compatibility: Designed for seamless integration with YOKOGAWA CENTUM VP, ProSafe-RS, and STARDOM platforms, minimizing engineering effort for existing YOKOGAWA DCS sites.
- High Common-Mode Rejection: Maintains signal accuracy in the presence of high common-mode voltages typical of large industrial plants.
- Proven Field Reliability: YOKOGAWA’s MX series has decades of installed base in tier-1 process industries globally, with documented MTBF exceeding typical project lifecycle requirements.
- Compact DIN-Rail Form Factor: Optimized for space-constrained marshalling cabinets without sacrificing channel density.
Complete System Bill of Materials
For a complete isolating multiplexer installation, engineers typically specify the following alongside the MX3*D:
- YOKOGAWA MX3 Series base unit / backplane (model-specific)
- 24 V DC DIN-rail power supply (e.g., YOKOGAWA or equivalent, 5 A minimum for multi-channel racks)
- 35 mm DIN rail and end brackets
- Shielded twisted-pair cable (per ISA-5.1 / IEC 60446 color coding)
- Terminal blocks with surge protection (for field-side connections in exposed installations)
- Cable duct and marshalling panel enclosure (IP54 minimum for industrial environments)
- YOKOGAWA CENTUM VP / STARDOM I/O cards (for DCS-side integration)
- Grounding bus bar and equipotential bonding conductors
Contact support@konmask.com for a complete BOM quotation tailored to your project scope.
Compliance & Industry Standards
- CE Marking — EMC Directive 2014/30/EU & Low Voltage Directive 2014/35/EU
- RoHS Compliant — Directive 2011/65/EU (restriction of hazardous substances)
- IEC 61000 Series — Electromagnetic compatibility for industrial environments
- ISA-5.1 — Instrumentation symbols and identification (signal loop documentation)
- IEC 60079 — Consult YOKOGAWA for ATEX/IECEx variant availability if hazardous-area installation is required
- ISO 9001 — YOKOGAWA manufacturing facilities are ISO 9001 certified
Always verify the specific certification marks on the physical product label and YOKOGAWA’s official declaration of conformity for your jurisdiction.
Quality Assurance & Sourcing
Konmask.com sources YOKOGAWA MX3*D modules through established industrial distribution channels with full traceability. Every unit offered on this platform:
- Is inspected for physical integrity, label authenticity, and packaging condition upon receipt
- Ships with original YOKOGAWA documentation where available (datasheet, calibration certificate if applicable)
- Is stored in ESD-safe, climate-controlled warehousing to preserve component integrity
- Can be accompanied by a Certificate of Conformance (CoC) upon request
- Is backed by Konmask’s sourcing guarantee — if a unit fails incoming inspection at your facility, we will replace or refund
We do not sell counterfeit, refurbished-as-new, or unverified grey-market stock. Provenance documentation is available for regulated industries upon request.
How to Source This Part
- Confirm your exact suffix: The MX3*D model number suffix determines channel count and I/O type. Share your existing part number or P&ID requirement with us.
- Request a quote: Email support@konmask.com or call +0086 19859288691 with your required quantity and delivery timeline.
- Lead time check: We maintain buffer stock on high-velocity YOKOGAWA modules. For large quantities, lead time is confirmed within 24 business hours.
- Place your order: Purchase directly through this product page or via purchase order (PO) for approved B2B accounts.
- Shipping & documentation: We ship globally with full commercial invoice, packing list, and optional CoC. DDP/DAP Incoterms available for international projects.
Application-Specific FAQ
Q: Can the MX3*D be used in SIL-rated safety loops?
A: The MX3 series is designed for process control applications. For SIL-rated loops, consult YOKOGAWA’s ProSafe-RS documentation and verify the specific SIL capability of the MX3*D suffix variant with YOKOGAWA’s safety certification team. Konmask can facilitate this inquiry.
Q: Is the MX3*D compatible with HART-enabled transmitters?
A: HART pass-through capability depends on the specific suffix variant. Standard isolating multiplexers may attenuate the HART FSK signal. Confirm with YOKOGAWA’s technical datasheet for your exact model suffix before specifying for HART-enabled loops.
Q: What is the difference between MX3*D and other MX3 suffix variants?
A: The suffix encodes channel configuration, I/O range, and power options. Contact Konmask with your application parameters and we will cross-reference the correct variant for your installation.
Q: Can I mix MX3*D modules with other YOKOGAWA I/O modules in the same rack?
A: Yes, within YOKOGAWA’s defined rack architecture. Consult the MX3 Series hardware manual for slot assignment rules and power budget calculations.
Q: Do you offer expedited shipping for shutdown/turnaround projects?
A: Yes. Contact us directly at +0086 19859288691 or support@konmask.com with your required delivery date and we will prioritize accordingly.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
