ABB AX416/100900/STD Dual-Parameter pH Analyzer

Description

ABB AX416/100900/STD Dual-Parameter pH Analyzer

The ABB AX416/100900/STD is a high-performance, single-input pH/Redox (ORP) Analyzer from the AX400 series. This series is widely recognized for its “plug-and-play” simplicity combined with advanced diagnostic features for industrial liquid analysis.

Product Detailed Description

The AX416 is a wall-mounted analyzer (though panel mounting is optional) designed to work with ABB’s range of pH and Redox sensors. The “100” in the code signifies it is a single-input version, and the “STD” indicates it is the Standard model for general industrial use. It translates the raw electrochemical signal from the sensor into a readable value and standard industrial outputs (4–20 mA).

Technical Parameters

Product Advantages

• Sensor Diagnostics: Includes the “Sensor-Life Indicator,” which monitors the impedance of the pH electrode to predict when the sensor needs cleaning or replacement, preventing unexpected downtime.
• High Durability: The IP66/NEMA 4X rated enclosure is made of robust polycarbonate, making it resistant to harsh chemical environments and high-pressure hosedowns.
• Easy Configuration: Features a multi-language, menu-driven interface that allows for quick setup without needing a manual.
• PID Control: Built-in Proportional-Integral-Derivative (PID) control capability allows the analyzer to directly manage dosing pumps or valves for pH neutralization.
• Dual Current Outputs: Allows for the simultaneous transmission of both the pH value and the process temperature to a PLC or SCADA system.

Important Considerations (Precautions)

• Sensor Compatibility: Ensure the cable length and sensor type (e.g., AP121, AP300) are compatible with the AX416 input stage to avoid signal degradation.
• Calibration: For safety-critical processes, the unit should be calibrated using standard buffer solutions (pH 4, 7, 10) at least once a month, depending on the “harshness” of the liquid.
• Terminal Wiring: Ensure the signal cable (especially high-impedance pH cables) is kept away from high-voltage power lines to prevent electromagnetic interference.
• Solution Ground: In plastic piping systems, it may be necessary to use a solution ground (earth) electrode to prevent “ground loops” from affecting the reading.

Product Applications

• Water Treatment: Monitoring and controlling pH levels in municipal drinking water and wastewater effluent.
• Chemical Processing: Managing neutralization tanks and reaction vessels where precise pH levels are required for chemical stability.
• Power Generation: Monitoring boiler feed water and cooling tower water to prevent corrosion and scaling.
• Food & Beverage: Clean-in-Place (CIP) systems monitoring and process water quality control.
• Pulp & Paper: Bleaching processes and white water management.

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