Endress+Hauser PH/ORP Transmitter and Electrode with Ceramic Membrane 0.1% Accuracy and 40 Bar Pressure Range

In industrial PH/ORP measurement systems, transmitters and electrodes are the core components that determine measurement accuracy and stability. As a leader in industrial automation, Endress+Hauser (E+H) offers a comprehensive PH/ORP product portfolio with precise functional segmentation and broad scenario adaptability. This guide provides detailed analysis of PH/ORP transmitter and electrode classifications, performance characteristics, applicable scenarios, and cost considerations for industrial applications.

Core Functions: Convert electrode signals into standard signals (4-20mA+HART), integrate data display, fault diagnosis and calibration management, and serve as the key link connecting electrodes and control systems.

• Modular design supporting PH/ORP mode switching
• Two-line display with multi-language menu
• Fast two-point calibration via CAL key
• Overvoltage protection and safety functions
• Compatible with both analog and digital sensors
• Ideal for conventional scenarios: water treatment, chemical neutralization tanks
• High cost-performance ratio

• 4-wire design with high accuracy
• Monitors electrode status, impedance and signals
• Built-in data logging and automatic buffer recognition
• One-click calibration functionality
• Supports automatic cleaning and integral-derivative measurement
• Expandable for dual-loop measurement
• Outputs comply with NAMUR standards
• Adapted for precision control: chemical reactors, food and pharmaceutical production
• Price range: $1,800-$2,500 per unit

PH/ORP electrodes directly contact the measured medium and collect PH/ORP signals, with performance determining measurement accuracy and stability. E+H electrodes are categorized by measurement type, signal type, and material characteristics to address various industrial working conditions.

Dedicated to PH value measurement, available in digital and analog types with non-glass and conventional glass material options.

• Core models: CPS491D, CPS171D, CPS341D
• Memosens digital technology for strong signal anti-interference
• Direct digital signal output supporting long-distance transmission (up to 1,000 meters)
• Predictive maintenance and laboratory calibration support
• Measurement accuracy: ±0.01-0.02 pH
• Response time: ≤2 seconds
• Applications: Chemical workshops with high electromagnetic interference, water treatment systems with long-distance wiring

• Core models: CPS471, CPF201, CPS441
• mV-level analog signal output
• Measurement accuracy: ±0.02-0.1 pH
• Response time: ≤3 seconds
• Simple structure, requires transmitter connection
• Limited anti-interference, short-distance transmission (≤50 meters)
• Applications: Municipal sewage treatment, cooling water treatment, general chemical storage tanks
• Excellent cost-performance ratio

• Non-glass PH Electrodes (CPS77D, CPS47D): ISFET sensing material, wear and corrosion resistant, no glass breakage risk, 30% longer service life, accuracy ±0.02 pH, price $700-$1,200 per unit. Ideal for media with solid particles, strong acids and alkalis.
• Conventional Glass PH Electrodes (CPS11D, CPS12D): Special glass sensing material, high accuracy ±0.01 pH, fast response ≤1.5 seconds. Suitable for clean liquids: pharmaceutical purified water, electronic ultrapure water.

• Core models: CPS72D, CPS42D, CPF82D
• Memosens technology with strong anti-interference
• Long-distance transmission and pre-calibration support
• Measurement range: -1000~+1000 mV
• Accuracy: ±2 mV
• Response time: ≤3 seconds
• Temperature compensation functions
• Applications: Electroplating solution monitoring, printing and dyeing wastewater treatment

• Core models: CPS92E, CPS72E, CPS42
• mV-level analog signal output
• Measurement range: -1000~+1000 mV
• Accuracy: ±5 mV
• Response time: ≤5 seconds
• Simple structure
• Applications: Municipal sewage disinfection, swimming pool water quality maintenance

• Core models: CPS76E, CPS96E, CPS16E, CPS76D, CPS96D
• Integrated design for simultaneous PH and ORP measurement
• Reduces installation space and wiring costs
• Digital models support Memosens technology
• Analog models offer lower costs
• PH accuracy: ±0.02 pH
• ORP accuracy: ±3 mV
• Response time: ≤3 seconds
• Applications: Chemical reactors, aquaculture water quality management, environmental monitoring stations

E+H PH/ORP transmitters and electrodes form a complete core measurement system. Basic transmitters suit conventional scenarios while advanced models meet precision control needs. Digital electrodes excel in complex interference and long-distance applications, while analog electrodes provide cost-effective solutions. Non-glass electrodes handle harsh media, glass electrodes deliver high precision in clean environments, and combined electrodes efficiently address dual-parameter monitoring requirements.