ABB TB556J3E50T20 TB556 pH/ORP Sensor: Premium Kynar Construction

The ABB TB556J3E50T20 TB556 pH/Redox (ORP) Sensor represents the pinnacle of durable and reliable liquid analysis for industrial processes.

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Engineered with a robust Kynar (PVDF) body, this sensor is specifically designed to withstand the harshest chemical environments, aggressive media, and high-temperature applications where standard sensors fail. It delivers precise, stable measurements of pH and Oxidation-Reduction Potential (ORP), making it an indispensable tool for industries requiring stringent process control, from chemical processing and pharmaceuticals to wastewater treatment and power generation.

Technical Specifications

Model: TB556J3E50T20 (TB556 Series)

Measurement Parameters: pH and Oxidation-Reduction Potential (ORP)

Sensor Body Material: Kynar (PVDF) - Superior chemical resistance

Electrode Type: Double-junction, pre-pressurized reference system

pH Temperature Range: Up to 100°C (212°F)

Pressure Rating: Up to 6 bar (87 psi)

Connections: Various process and electrical connection options available

Compatibility: Designed for seamless integration with ABB's extensive range of pH/ORP transmitters and analytical systems.

Key Advantages & Features

1. Unmatched Durability with Kynar Body

The sensor's construction from Kynar (polyvinylidene fluoride) provides exceptional resistance to a wide spectrum of corrosive chemicals, solvents, and oxidizing agents. This ensures long service life, reduced maintenance costs, and reliable operation in applications that would rapidly degrade sensors made from glass, stainless steel, or other plastics.

2. Superior Measurement Stability & Accuracy

Featuring a advanced double-junction reference system, the TB556 sensor minimizes reference electrolyte contamination and poisoning. The pre-pressurized reference maintains a stable outflow, preventing process ingress and ensuring accurate, drift-free measurements over extended periods, even in challenging dirty or coating-prone media.

3. Built for Harsh Industrial Environments

With a high temperature tolerance (up to 100°C) and pressure rating, this sensor is ideal for in-line process applications. Its rugged design resists physical shock and vibration, guaranteeing consistent performance in demanding industrial settings.

4. Low Maintenance & High Cost-Efficiency

The robust design translates to fewer sensor replacements and less frequent calibrations. Easy servicing and refillable electrolyte options further reduce the total cost of ownership, making it a smart, long-term investment for critical measurement points.

5. Seamless ABB Ecosystem Integration

As part of ABB's trusted analytical portfolio, the TB556 sensor pairs perfectly with ABB transmitters for a complete, optimized measurement loop. This guarantees plug-and-play compatibility, simplified commissioning, and access to comprehensive global technical support.

Ideal Applications

This premium sensor is the optimal choice for:

Chemical and Pharmaceutical Manufacturing

Aggressive Wastewater and Effluent Monitoring

Metal Finishing and Plating Baths

Pulp & Paper Processing

Power Plant FGD (Flue Gas Desulphurization) and Water Circuits

Any process involving strong acids, bases, or solvents

Conclusion

The ABB TB556J3E50T20 TB556 pH/ORP Sensor sets the standard for reliable analytical measurement in corrosive and high-temperature processes. Its Kynar construction, combined with ABB's proven sensor technology, delivers unparalleled durability, accuracy, and operational savings. For engineers and plant managers seeking to eliminate measurement downtime and ensure process integrity, the TB556 is the definitive robust sensing solution.