PH5011 pH Sensor, pH Electrode, pH Measuring for Industrial/Lab Usage

Introduction

The PH5011 pH Sensor serves as a precision probe for measuring the hydrogen ion concentration in aqueous solutions, providing essential data for process control and quality management.

Its robust construction, featuring a PTFE liquid junction and solid dielectric materials, ensures minimal clogging and reduced maintenance in practical applications. The sensor’s design incorporates a silver/silver chloride (Ag/AgCl) reference electrode, known for its stability and responsiveness across a broad pH range.

With outputs compatible with standard controllers and transmitters, the PH5011 can easily integrate into automated monitoring systems, delivering consistent and repeatable measurements that support operational decision-making. 

Working principle

Step 1: Electrochemical Potential Generation

When the sensor is immersed in a solution, the measuring electrode and the Ag/AgCl reference electrode generate an electrical potential that changes according to the solution’s acidity or alkalinity.

Step 2: Signal Conversion and Stabilization

The resulting potential difference reflects hydrogen ion activity and is processed by a high-impedance measurement circuit. The Ag/AgCl reference system maintains a stable reference voltage, while the PTFE junction resists clogging and ensures consistent ion exchange.

Step 3: Accurate pH Output

Thanks to precise voltage detection, optimized internal impedance, and fast response characteristics, the sensor delivers accurate and reliable pH readings in both static and flowing liquid environments, even under demanding conditions.

Key features

The PH5011 pH Sensor is engineered with practical design features to deliver accurate, stable, and reliable pH measurement in industrial applications:

• Wide pH measurement range: Effective across a broad pH scale, suitable for neutral, acidic, and alkaline solutions.
  

• Stable reference electrode: Uses Ag/AgCl reference chemistry for enhanced measurement consistency.
  

• Solid dielectric and PTFE junction: Minimizes blockage and simplifies maintenance requirements.
  

• Durable construction: Combines sturdy PPS/PC housing with resilient internals for reliable long-term use.
  

• Fast response time: Rapid output changes reflect pH shifts quickly, supporting real-time monitoring.
  

• High accuracy and repeatability: Maintains consistent performance with good repeatability for process control.
  

• Low-noise cable connection: Ensures clear signal transmission and supports installation flexibility.
  

• Standard thread mounting: Upper and lower 3/4″ NPT thread design enables straightforward integration into piping or tanks.

Specification

Applications

The PH5011 pH Sensor is suitable for a wide range of industrial and environmental applications where monitoring pH is critical:

• Industrial Wastewater Treatment: Real-time pH measurement to ensure effluent compliance and process control.
  

• Chemical Processing: Monitoring acidity during reactions and processing to maintain quality and safety.
  

• Water Treatment Plants: pH tracking for potable water quality and chemical dosing optimization.

• Food & Beverage Production: Ensures pH levels are within formulation requirements during processing.

• Aquaculture & Environmental Monitoring: Helps maintain balanced water chemistry for aquatic health.
  

• Educational & Laboratory Use: Provides dependable pH data for experiments and testing workflows.