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Yokogawa FCA4*A Versatile 4-wire AnalyzerYokogawa FCA4*A Versatile 4-wire AnalyzerYokogawa FCA4*A Versatile 4-wire Analyzer
Yokogawa FCA4*A Versatile 4-wire Analyzer
Yokogawa FCA4*A Versatile 4-wire Analyzer
Yokogawa FCA4*A Versatile 4-wire Analyzer

Yokogawa FCA4*A Versatile 4-wire Analyzer


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PRODUCT SKU : FCA4*A

PRODUCT TYPE : Liquid Analyzers

PRODUCT VENDOR : Yokogawa


  • 100% Genuine Parts – Risk-Free 30-Day Returns
  • 1-Year Warranty & Expert Support for Every Order

Product Details

Configured for multi-parameter liquid analytical measurement in CENTUM VP and ProSafe-RS control networks, the Yokogawa FCA4*A (FCA4*A 4-wire Analyzer Module) provides direct physical/electrical execution.

Hardware Specifications

Parameter Specification
Model FCA4*A (FLXA402)
Brand Yokogawa
Origin Japan
Architecture 4-Wire Configuration
Measurement Options pH/ORP, Conductivity, Dissolved Oxygen
Sensor Capacity Up to 5 Sensors (Dual Sensor Simultaneous Measurement)
Display / HMI Color Touchscreen Panel (9 Languages Supported)
Weight 2.50 kg
Dimensions 144 x 144 x 150 mm
Operating Temp -20 to 55 deg C
Power Consumption 15 VA (AC Units) / 10 W (DC Units)

Yokogawa Channel-to-Channel Isolation & Process Control Integration

Yokogawa industrial analytical systems implement dedicated signal processing to integrate high-density liquid sensors into centralized process controllers. Independent sensor channel-to-channel isolation prevents ground loop interference across pH/ORP and conductivity measurement paths. Signal conversion algorithms support standard 4-20 mA HART loop protocol transmission and FOUNDATION Fieldbus connectivity to deliver continuous real-time diagnostic values directly into operator workstations without data corruption.

Frequently Asked Questions

Q: How does the module handle sensor replacement without interrupting overall system operation?

A: The device architecture supports multi-sensor configurations up to five sensors, permitting continuous measurement on secondary channels while primary sensor calibration or physical maintenance is performed.

Q: What grounding practices are required for 4-20 mA HART analog output loops?

A: Connect the signal cable shield at a single termination point on the system side. Avoid grounding the shield at both ends to prevent circulating ground currents from disturbing low-level sensor millivolt signals.

Field Installation Guidelines

Mount the analyzer enclosure to a rigid surface or pipe stand, verifying that all cable glands are tightened to meet NEMA 4X / IP66 ingress ratings. Route low-voltage sensor inputs in dedicated conduits separate from AC power lines to prevent electromagnetic interference. Ensure protective earth grounding is established before connecting power leads to the internal terminal block.

Additional Information

  • 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
  • 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
  • 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
  • Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
  • Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
  • Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.




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