Original Industrial Spare Part
Yokogawa FLXA21 | 2-Wire Dual-Channel Liquid Analyzer Transmitter — Original Spare Parts
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- SKUFLXA21
- CategoryDCS Distributed Control Systems
- BrandYokogawa
- SupportAvailability, lead time, condition, and shipping coordination
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FLXA21 — Yokogawa 2-Wire Dual-Channel Liquid Analyzer Transmitter | 100% Original Spare Parts
As a procurement manager sourcing critical instrumentation for continuous process operations, reliability and authenticity are non-negotiable. The Yokogawa FLXA21 is a precision-engineered, 2-wire loop-powered liquid analyzer transmitter designed for simultaneous dual-channel measurement of pH, ORP (oxidation-reduction potential), conductivity, and dissolved oxygen (DO). Certified 100% Brand New and Factory Sealed, every unit we supply is sourced directly from Yokogawa’s authorized distribution network — ensuring full traceability and compliance with your plant’s quality standards. The FLXA21 is a cornerstone component in modern Industrial Automation and PLC System architectures, delivering uncompromised measurement integrity in the most demanding process environments.
Engineered to address the persistent challenges of multi-parameter water quality monitoring, this Control Module eliminates the need for multiple single-parameter instruments. Whether you’re managing effluent compliance in a municipal wastewater facility or maintaining ultra-pure water loops in semiconductor fabrication, the FLXA21 consolidates your measurement infrastructure without sacrificing accuracy. Its HART-enabled 4-20 mA output integrates natively with DCS, SCADA, and PLC System platforms, making it an ideal Original New replacement or upgrade component for aging analyzer networks.
Backed by a 1-Year Warranty and fast global logistics, this is the Original Spare Parts solution your operations team can depend on. Contact us today for pricing, lead time, and datasheet availability.
Typical Application Scenarios
The FLXA21 addresses real-world measurement pain points across a broad range of industries:
- Oil & Gas: Continuous monitoring of produced water and cooling tower chemistry to prevent corrosion-induced downtime in upstream and midstream facilities.
- ✅ Power Plants: Boiler feedwater and condensate quality control — a single FLXA21 replaces multiple legacy analyzers, reducing panel space and wiring complexity.
- ✅ Pharmaceutical Manufacturing: USP purified water and WFI loop validation, where dual-channel conductivity and pH measurement must meet 21 CFR Part 11 audit requirements.
- ✅ Municipal Water Treatment: Real-time effluent pH and DO monitoring for regulatory compliance reporting, with HART integration enabling remote diagnostics from the control room.
- ✅ Food & Beverage Processing: CIP (Clean-In-Place) cycle monitoring and process water quality assurance, where hygienic design and measurement repeatability are critical.
Core Features & Technical Advantages
- Dual Independent Measurement Channels: Simultaneously monitor two parameters (e.g., pH + conductivity) from a single loop-powered transmitter — reducing hardware costs and installation footprint.
- Robust 2-Wire Loop Power (12-42 VDC): Eliminates auxiliary power supplies; simplifies hazardous area installation and IS barrier design.
- HART Protocol + 4-20 mA Output: Enables remote calibration verification, predictive diagnostics, and seamless integration with asset management platforms such as Yokogawa FieldMate.
- Heavy-Duty IP67 / NEMA 4X Enclosure: Weatherproof and submersion-resistant housing rated for harsh outdoor and washdown environments.
- Precision Multi-Parameter Accuracy: ±0.02 pH | ±2 mV ORP | ±0.5% conductivity | ±2% DO — meeting the stringent accuracy demands of regulated industries.
- Backlit LCD Multi-Parameter Display: Simultaneous readout of both channels with diagnostic status indicators for rapid field verification.
Technical Specifications & Selection Guide
| Specification | Value |
|---|---|
| Model Number | FLXA21 |
| Manufacturer | Yokogawa Electric Corporation |
| Transmitter Type | 2-Wire Loop-Powered, Dual-Channel |
| Power Supply | 12-42 VDC (loop powered) |
| Output Signal | 4-20 mA + HART (Rev. 5/7) |
| Measurement Parameters | pH (0-14), ORP (±2000 mV), Conductivity (0-2000 mS/cm), DO (0-20 ppm) |
| pH Accuracy | ±0.02 pH |
| ORP Accuracy | ±2 mV |
| Conductivity Accuracy | ±0.5% of reading |
| DO Accuracy | ±2% of reading |
| Operating Temperature | -20°C to +55°C (-4°F to +131°F) |
| Enclosure Rating | IP67 / NEMA 4X |
| Display | Backlit LCD, dual-channel readout |
| Mounting | Wall-mount or 2-inch pipe mount |
| Condition | 100% Original and Brand New |
| Country of Origin | Japan |
Selection Guide: Choose the FLXA21 when your application requires simultaneous dual-parameter liquid analysis with a single loop-powered device. For single-parameter applications or panel-mount configurations, consult our Yokogawa analyzer portfolio for alternative models.
Logistics & Professional Service
- 100% Original and Brand New — factory sealed with full Yokogawa traceability documentation available upon request.
- ✅ 2-Day Express Shipping available to major global hubs; standard air freight typically 5-7 business days worldwide.
- ✅ 1-Year Warranty covering manufacturing defects; DOA replacement policy within 30 days of receipt.
- ✅ EOL & Legacy System Support: We specialize in sourcing discontinued and hard-to-find Yokogawa Spare Parts for aging DCS and PLC System installations — keeping your plant running without costly system overhauls.
- ✅ Documentation Package: Datasheet, calibration certificate, and certificate of origin available upon request for import compliance and quality audits.
FAQ — Frequently Asked Questions
Q1: Is this FLXA21 unit 100% original and brand new?
Yes. Every FLXA21 we supply is 100% Original and Brand New, sourced from Yokogawa’s authorized supply chain. Units are factory sealed and include original packaging. Certificate of origin and traceability documentation are available upon request.
Q2: What is the lead time for the FLXA21?
For in-stock units, we offer 2-day express shipping to most international destinations. Standard air freight lead time is 5-7 business days. For large-volume orders or specific configuration variants, please contact us for a confirmed delivery schedule.
Q3: Can I get the official Yokogawa FLXA21 datasheet?
Absolutely. The complete Yokogawa FLXA21 technical datasheet — including wiring diagrams, dimensional drawings, and HART register maps — is available upon request. Contact our technical team at sale@ninermas.com with your inquiry reference.
Q4: What measurement parameters does the FLXA21 support simultaneously?
The FLXA21 supports simultaneous dual-channel measurement across pH, ORP, conductivity, and dissolved oxygen. Each channel operates independently, allowing you to monitor two different parameters from a single transmitter within your Industrial Automation or PLC System network.
Q5: Is the FLXA21 compatible with existing Yokogawa DCS systems?
Yes. The FLXA21 outputs a standard 4-20 mA signal with HART protocol overlay, making it fully compatible with Yokogawa CENTUM VP, ProSafe-RS SIS platforms, and third-party DCS/SCADA systems. It also integrates with Yokogawa FieldMate for advanced asset management.
Q6: What is the price of the FLXA21?
Pricing varies based on order quantity, configuration, and shipping destination. Our listed price reflects single-unit retail. Volume discounts are available for orders of 3+ units. Please submit an inquiry via sale@ninermas.com or use the contact form above for a formal quotation with your specific requirements.
© 2026 NINERMAS COMPANY LIMITED. All rights reserved. Original Source: https://ninermas.com | Contact: sale@ninermas.com | +0086 187 5021 5667
| Product Series | ProSafe-RS |
|---|---|
| Country of Origin | JP |
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