ABB – pH, Conductivity, DO Sensors

Features:

✅ Glass and ISFET sensor options for a wide pH range
✅ Integrated temperature compensation
✅ Pre-pressurized reference system for long life
✅ High accuracy and fast response time
✅ Optical and electrochemical measurement principles
✅ Rapid startup and response time

pH sensor is one of the most important tools for measuring pH and is commonly used in water quality monitoring. This type of sensor is capable of measuring alkalinity and acidity in water and other solutions.

Brand	ABB

Brand

ABB

Description
Technical Data
Application
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Description

ABB’s analytical sensors for pH, Conductivity, and Dissolved Oxygen (DO) measurement deliver precision, durability, and real-time monitoring in harsh industrial environments. Designed for seamless integration with ABB transmitters and control systems, these sensors offer unmatched performance in process control, water treatment, and life sciences applications.
ABB offers a variety of analytical tools, such as conductivity, pH, and dissolved oxygen (DO) sensors, which are utilized in several industrial settings for process management and water quality monitoring. These sensors are made to be precise, dependable, and long-lasting in harsh conditions.
ABB’s Analytical Instruments:

pH Sensors:

ABB offers a variety of pH sensors, including the 700 ULTRA-D with a triple ceramic junction for faster response and stability, and high-temperature (HT) glass sensors for harsh process conditions. They incorporate features like Reference Electrode Monitoring (REM) and impedance diagnostics to ensure reliable performance and extend sensor life.

Conductivity Sensors:

ABB’s conductivity sensors are known for their accuracy and ability to measure a wide range of conductivity levels, from ultra-pure water to harsh chemical applications. They offer 2-electrode, 4-electrode, and toroidal (electrode-less) sensors, with the 4-electrode system being a patented design for sampling flexibility, reliability, and easy maintenance.

Dissolved Oxygen (DO) Sensors:

ABB also provides sensors for measuring dissolved oxygen levels, which are crucial for monitoring water quality and process control in various applications

Technical Data

ABB Analytical Sensors – pH, Conductivity & DO

🔹 pH / Conductivity / DO Sensors ▾

Measurement Range pH: 0 to 14
Conductivity: 0.05 µS/cm to 2000 mS/cm
DO: 0 to 20 mg/L

Temperature Range pH: -10°C to 135°C
Conductivity: -10°C to 150°C
DO: 0°C to 60°C

Pressure Range pH: Up to 10 bar
Conductivity: Up to 16 bar
DO: Up to 6 bar

Sensor Material pH: Glass, ISFET, PEEK, Stainless Steel
Conductivity: PEEK, SS, PTFE, PVDF
DO: SS316L, EPDM, Optical Window

Output Signal pH: Analog / Digital (e.g., Modbus)
Conductivity: 4–20 mA / Modbus / HART
DO: 4–20 mA / Modbus / HART

Mounting pH: Inline, Immersion, Flow-through
Conductivity: Inline, Tank, Sanitary Tri-clamp
DO: Inline, Tank, Pipe, Sanitary Mount

Certifications pH: ATEX, IECEx, FDA, 3A, EHEDG
Conductivity: CE, RoHS, FDA
DO: CE, ATEX, FDA

Application

Water & Wastewater Treatment: Monitor pH, conductivity, and DO in influent, effluent, and process streams.
Chemical & Petrochemical: Maintain product quality and ensure compliance with process requirements.
Food & Beverage: Support fermentation control, CIP validation, and quality assurance.
Pharmaceuticals: Ensure regulatory compliance (FDA, GMP) in critical process environments.
Power Plants: Control of boiler feedwater, cooling water, and condensate monitoring.
Pulp & Paper: Optimize bleaching, recovery, and chemical dosing processes.