High-Precision TOC Monitoring for Ultrapure Water
The Endress+Hauser CA78 is an online TOC analyzer designed specifically for applications where extremely low levels of organic contamination must be monitored continuously.
Total organic carbon (TOC) is an important indicator of ultrapure water quality. Excessive TOC levels can affect water purification performance, reduce product quality and impact sensitive production processes.
The CA78 provides continuous measurement of TOC values, allowing operators to quickly identify changes in water quality and take corrective action.
Typical applications include:
Ultrapure water systems
Power plant water-steam cycles
Semiconductor manufacturing
High-purity process water systems
UV Digestion and Differential Conductivity Measurement
The CA78 uses a proven UV digestion combined with differential conductivity measurement method for trace TOC analysis.
The measurement process includes:
UV oxidation of organic compounds in the sample
Conversion of organic carbon into measurable components
Detection through conductivity difference measurement
This method provides:
Reliable trace-level TOC detection
Stable long-term measurement
Fast response to contamination events
The analyzer is designed for applications requiring continuous monitoring rather than occasional laboratory sampling.
Real-Time Water Quality Monitoring
The CA78 provides continuous online monitoring of ultrapure water quality.
Compared with manual sampling and laboratory analysis, online TOC measurement allows users to:
Detect contamination immediately
Reduce response time
Improve process control
Protect critical production equipment
The analyzer provides a fast response time with a t90 value of approximately 50 seconds, enabling rapid detection of water quality changes.
Designed for Power and Semiconductor Industries
The CA78 is especially suitable for industries where ultrapure water quality directly affects production reliability.
Power Generation Applications
In power plants, high-purity water is essential for steam cycle operation.
The CA78 helps monitor:
Boiler feedwater quality
Condensate systems
Ultrapure water production
Semiconductor Manufacturing
Semiconductor production requires extremely clean water to prevent contamination during manufacturing.
The CA78 supports:
UPW (ultrapure water) monitoring
Process water quality control
Contamination detection
Flexible Configuration Options
The CA78 can be adapted to different process requirements.
Available options include:
High-precision version for conductivity up to 2 μS/cm
Robust version for conductivity up to 10 μS/cm
Optional three-channel configuration
This flexibility allows users to balance measurement requirements and installation costs.
Maintenance-Friendly Design
The CA78 is designed to simplify operation and maintenance.
Features include:
Easy access to internal components
Integrated UV reactor monitoring
Reduced maintenance workload
Long-term measuring point support
The stainless steel housing provides a robust enclosure suitable for industrial environments.
Key Features
Online low-range TOC analyzer for ultrapure water
Designed for trace-level total organic carbon measurement
UV digestion and differential conductivity measurement principle
Measuring range: 0.5 to 1,000 μg/l (ppb)
Continuous real-time TOC monitoring
Fast response time for contamination detection
Optional multi-channel measurement configuration
Stainless steel housing design
UV reactor with continuous function monitoring
Suitable for power plants and semiconductor production
Supports high-purity water quality management
Typical Applications
Power Plant Ultrapure Water Monitoring
The CA78 helps maintain water quality in power generation systems.
Applications:
Boiler feedwater monitoring
Steam cycle water analysis
Condensate quality monitoring
Water purification system control
Semiconductor Manufacturing
Semiconductor processes require extremely low contamination levels.
Applications:
Ultrapure water production
Process water monitoring
TOC contamination detection
Pharmaceutical and High-Purity Water Systems
Suitable for industries requiring strict water quality control.
Applications:
Purified water systems
High-purity process water
Continuous quality monitoring
Industrial Water Treatment
The CA78 can support monitoring of advanced water treatment systems.
Applications:
Water purification processes
Deionized water systems
Quality verification
FAQ
What is Endress+Hauser CA78?
The CA78 is an online TOC analyzer designed for continuous monitoring of trace-level total organic carbon in ultrapure water applications.
What does CA78 measure?
CA78 measures total organic carbon (TOC) concentration in high-purity water systems.
What is the measurement principle of CA78?
The analyzer uses UV digestion followed by differential conductivity measurement to determine TOC levels.
What is the measuring range of CA78?
The measuring range is 0.5 to 1,000 μg/l (ppb).
Where is CA78 mainly used?
CA78 is mainly used in power generation, semiconductor production and other industries requiring ultrapure water monitoring.
Why is TOC monitoring important?
TOC measurement helps identify organic contamination in ultrapure water, protecting sensitive processes and maintaining required water quality.
