HH SCIENCE HH2500C Water Online Process pH Sensor for Complex and Aggressive Process Electrode | Cylindrical Acid/Alkali-Resistant Glass Membrane
Original price was: US$550.00.US$385.00Current price is: US$385.00.
The HH SCIENCE HH2500C is a high-performance pH electrode engineered for extreme industrial process conditions, featuring application-specific electrolytes and reinforced construction for stable, accurate measurement in chemically complex and contamination-prone environments.
Key Features:
- Application-specific electrolyte for harsh media
- Dual-junction reference for high contamination resistance
- IP68 waterproof for continuous submersion
- Chemically resistant to heavy metals and proteins
- Durable reinforced membrane with full 0–14 pH range
The HH SCIENCE HH2500C is a specialized, high-end pH electrode developed as an advanced extension of the QL3700 platform, offering unmatched chemical resilience and measurement reliability in complex, high-contaminant environments. Designed to maintain performance where standard electrodes deteriorate quickly, it is ideal for media rich in heavy metals, salts, ammonia, proteins, or aggressive organics.
The HH2500C is equipped with a dual-junction reference structure and customized intermediate electrolytes that prevent clogging, poisoning, and rapid degradation—common issues in highly reactive or fouling conditions. Its rugged design includes a reinforced pH-sensitive glass membrane, ensuring mechanical durability and stable operation over prolonged use in industrial systems.
Certified with an IP68 waterproof rating, the HH2500C can be submerged continuously, making it suitable for inline monitoring or tank immersion. From chlor-alkali production to sugar refining and electroplating wastewater treatment, it delivers accurate and repeatable pH measurement even under extreme chemical loads.
Key Features
- Excellent Repeatability and Signal Stability: Maintains consistent, precise pH measurement in heavily contaminated or chemically aggressive solutions over long durations.
- Dual-Junction Reference System: Provides a robust barrier against reference poisoning, ensuring long-term accuracy in the presence of heavy metals, proteins, or oxidizing agents.
- IP68 Waterproof Construction: Enables reliable, long-term use in submerged or inline installations without performance degradation.
- Application-Specific Electrolyte Design: Tailored intermediate electrolyte reduces junction clogging and lowers maintenance frequency in ammonia- and protein-rich media.
- Full-Range Chemical Resistance (pH 0–14): Withstands extreme pH and chemical exposure, making it ideal for chlor-alkali and high-salinity environments.
- Reinforced pH Glass Membrane: Delivers strong mechanical impact resistance and long service life in abrasive or high-pressure processes.
Optional Upgrades
- Custom Insertion Lengths: Adapt electrode length to match vessel, pipe, or panel dimensions
- Junction Customization: Upgrade from single-point ceramic to dual-, triple-point, or ring-shaped PTFE junction for enhanced anti-clogging performance
- Cable & Connector Options: Full compatibility with a wide range of industrial transmitters and controllers
- Extended Cable Length: Available up to 60 meters for flexible installation in remote or large-scale systems
Typical Applications
- Electroplating and electronics wastewater management
- High-salinity, heavy-metal-laden industrial effluents
- Protein-rich or organic-heavy chemical wastewater
- Ammonia and ammonium compound processing
- High-temperature sugar refining lines
- Chlor-alkali and aggressive reagent manufacturing
| Measuring Range | 0–14 pH |
| Temperature Range | 0–100 °C |
| Pressure Range | 0–3 Bar (up to 6 Bar max with enhanced configuration) |
| Temperature Compensation Options | NTC 2.252K, NTC 5K, NTC 10K, NTC 22K, NTC 30K, PT100, PT1000 (optional) |
| Factory Calibrated Slope | Better than 95% |
| Membrane Resistance | < 250 MΩ |
| Zero Potential (E₀) | < ±10 mV |
| Response Time | < 10 seconds |
| Salt Bridge Type | Special multi-porous ceramic junction |
| Reference Electrolyte | PCG polymer gel (custom formulation) |
| Reference System | Double-junction reference system |
| Process Connection | PG13.5 threaded connector |
| Housing Material | Glass body |
| Insertion Lengths (Customizable) | 120 / 150 / 225 / 325 / 425 mm |
| pH Sensitive Membrane | HA (Acid/Alkali-resistant membrane) |
| Cable Connections (Customizable) | S8, S8M, S7, VP8, K8S, K2 |
| Weight | 0.3 kg |
|---|---|
| Dimensions | 20 × 6 × 6 cm |
| Junction (Salt Bridge Type) | PTFE, Ceramic Junction |
| Measurement | pH, ORP |
| Temperature Compensation Options | NTC 2.252K, NTC 5K, NTC 10K, NTC 22K, NTC 30K, PT100, PT1000 |
| Cable Connection | Integrated direct-connection cable, S8, S8M, S7, K8S, VP4, VP, K2, K9, 4 PIN |
| Application | Aquaculture & Aquarium, Environmental Monitoring, Food & Beverage, Hydroponics & Agriculture, Industrial Water & Wastewater Treatment, Laboratory & Analytical, Metallurgy & Mining, Municipal Water & Wastewater Treatment, Pool & Spa |
| Parameters | pH |
Related Products
The HH SCIENCE HH2500D is a specialized pH electrode for flue gas desulfurization (FGD) and denitrification (DeNOx) systems, featuring a synthetic gel electrolyte, PTFE junction, and reinforced design for stable performance in sulfur-rich, high-temperature, and high-pressure environments.
Key Features:
- PTFE junction resists clogging and contamination
- Synthetic gel electrolyte blocks sulfur ion interference
- Dual-junction reference system for long-term stability
- IP68 waterproof for full submersion
- Reinforced membrane for impact resistance and durability
The HH SCIENCE HH2800L is a pH electrode designed for stable and accurate performance in low-temperature conditions down to -25°C, combining a cold-resistant electrolyte with dual-junction protection and mechanical durability for laboratory, chemical, and refrigerated applications.
Key Features:
- Reliable performance in temperatures as low as -25°C
- Dual-junction design resists contamination
- IP68-rated for immersion use
- Chemically resistant to strong acids, alkalis, and solvents
- Minimal temperature and signal drift over long-term operation
The HH SCIENCE HH2300 is a premium pH electrode featuring a ground glass junction and double-junction reference system for advanced anti-fouling performance in chemically aggressive and high-contamination process environments.
Key Features:
- Ground glass junction resists clogging and fouling
- Double-junction design ensures long-term signal stability
- Reinforced pH-sensitive glass membrane
- IP68 waterproof for continuous submersion
- Accurate full-range pH measurement (0–14)
The HH SCIENCE HH2800 is a high-temperature pH electrode built for chemical, biopharmaceutical, and industrial processes up to 150°C, featuring a specialized HT membrane and synthetic gel system designed for sterilization, pressure, and chemical resistance.
Key Features:
- Withstands temperatures up to 150°C
- Dual-junction design resists contamination
- Reinforced HT membrane for thermal and mechanical shock
- IP68-rated for immersion and pressurized systems
- Compatible with CIP/SIP and autoclave sterilization