Yokogawa FU20-10-T1-NPT Combination pH Sensor with Pt1000

Yokogawa FU20-10-T1-NPT Combination pH Sensor Overview

The Yokogawa FU20-10-T1-NPT is an industrial-grade combination pH sensor engineered for precise pH measurement in demanding process environments. Featuring an integrated Pt1000 RTD temperature sensor, this electrode delivers automatic temperature compensation for enhanced accuracy across varying thermal conditions.

Technical Specifications

• Model: FU20-10-T1-NPT
• Sensor Type: Combination pH electrode with integrated temperature sensor
• Temperature Element: Pt1000 RTD (Resistance Temperature Detector)
• Reference System: Ag/AgCl (Silver/Silver Chloride) gel-filled reference electrode
• Connection Type: NPT threaded process connection
• Body Material: PPS GF40 (Polyphenylene Sulfide with 40% glass fiber reinforcement)
• pH Range: 0-14 pH
• Temperature Range: 0-100°C (32-212°F)
• Pressure Rating: Up to 0.3 MPa

Application Scenarios

This combination pH sensor excels in multiple industrial applications:

• Water Treatment Plants: Continuous pH monitoring in drinking water purification, wastewater treatment, and effluent discharge control
• Chemical Processing: Real-time pH control in batch reactors, neutralization systems, and chemical dosing operations
• Food & Beverage: Quality assurance in brewing, dairy processing, and beverage production lines
• Pharmaceutical Manufacturing: Critical pH measurement in API synthesis, fermentation processes, and clean-in-place (CIP) systems
• Power Generation: Boiler water chemistry monitoring and cooling tower pH control

Key Features & Benefits

• Integrated Temperature Compensation: Pt1000 RTD ensures accurate pH readings regardless of process temperature fluctuations
• Robust Construction: PPS GF40 body provides exceptional chemical resistance and mechanical strength
• Low-Maintenance Design: Gel-filled Ag/AgCl reference minimizes maintenance requirements and extends operational life
• NPT Threading: Standard NPT connection enables easy installation and replacement in existing process infrastructure
• Fast Response Time: Quick equilibration for dynamic process control applications
• Wide Compatibility: Works seamlessly with Yokogawa pH/ORP analyzers and transmitters

Solution Integration

The FU20-10-T1-NPT sensor integrates perfectly with Yokogawa's comprehensive water quality analysis ecosystem. When paired with the Yokogawa FLXA21 2-Wire Dual Channel Transmitter/Analyzer, it forms a complete pH monitoring solution with advanced diagnostics and multi-parameter measurement capabilities.

For applications requiring additional electrodes, consider the Yokogawa K9142TN Glass Electrode as a complementary measurement point. Temperature monitoring can be further enhanced with dedicated Yokogawa AAR145-S50 RTD Input Module for multi-point temperature acquisition in complex process systems.

Installation & Maintenance

The NPT threaded design allows for straightforward installation into standard process fittings. Regular calibration using pH buffer solutions (pH 4.01, 7.00, and 10.01) ensures measurement accuracy. The gel-filled reference electrode minimizes electrolyte leakage and extends service intervals compared to liquid-filled designs.

Why Choose Yokogawa pH Sensors?

Yokogawa's decades of expertise in analytical instrumentation deliver sensors that combine precision, reliability, and longevity. The FU20-10-T1-NPT represents proven technology trusted by process engineers worldwide for critical pH measurement applications.

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