HH SCIENCE HH2500D Water Online Process pH Sensor Solution for Desulfurization & Denitrification Processes Electrode | Reinforced Cylindrical pH Glass Membrane |FGD/DeNOx Applications
Original price was: US$600.00.US$429.00Current price is: US$429.00.
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 HH2500D is purpose-built for desulfurization and denitrification (FGD/DeNOx) processes, where extreme operating conditions and chemically aggressive media are the norm. Designed to handle high concentrations of sulfur ions, suspended solids, and heavy metals, this model ensures long-term signal reliability in flue gas scrubbing and exhaust gas purification systems.
Its construction includes a cylindrical pH-sensitive glass membrane with excellent mechanical strength and a PTFE salt bridge that provides a non-clogging, low-interference liquid junction. Inside, the HH2500D features an SRG (Synthetic Resin Gel) electrolyte, which resists sulfur ion poisoning—a common cause of premature failure in standard electrodes.
The dual-junction reference system further enhances chemical isolation and extends service life, while the IP68 waterproof rating ensures the sensor performs reliably in fully submerged applications, such as absorber towers and slurry tanks in FGD systems.
Key Features
- PTFE Salt Bridge: Offers high resistance to clogging while providing stable junction potential in dirty, sulfur-rich process fluids.
- SRG Synthetic Gel Electrolyte: Effectively prevents sulfur ion poisoning and extends operational lifespan in flue gas treatment applications.
- Dual-Junction Reference Structure: Minimizes contamination and maintains signal integrity in long-term continuous monitoring scenarios.
- Reinforced Cylindrical pH Glass Membrane: Provides high mechanical shock resistance and pressure durability for aggressive gas-liquid environments.
- IP68 Waterproof Rating: Enables continuous submersion in scrubber systems, settling tanks, or reaction vessels.
- High Measurement Stability: Ensures consistent pH output despite variations in temperature, pressure, and particle load.
Optional Upgrades
- Custom Insertion Lengths: Adaptable to absorber tower heights or pipe flange dimensions.
- Junction Replacement Options: PTFE salt bridge can be replaced with a dual-ceramic junction for alternate application needs.
- Cable & Connector Customization: Available in all industrial standard connection formats.
- Cable Length Extension: Up to 60 meters for remote deployment in large flue gas systems or elevated scrubber units.
Typical Applications
- Flue gas desulfurization (FGD) units in coal-fired power plants
- Flue gas denitrification (DeNOx) systems in industrial combustion sources
- Chemical scrubbers and exhaust gas treatment systems in metallurgy and heavy industry
| 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 | SRG synthetic gel (special formulation) |
| Reference System | Double-junction reference system |
| Process Connection | PG13.5 threaded connector |
| 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
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Key Features:
- Optimized for low-conductivity media (20–300 μS/cm)
- Low-impedance membrane for fast, accurate response
- IP68-rated waterproof design for submersible and inline use
- Long-path reference for superior drift and contamination resistance
- PTFE ring-shaped salt bridge ensures stable junction in flow-through applications
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 HH2300P is a precision-engineered pH electrode with a ground glass junction and ultra-low impedance membrane, delivering fast and accurate measurements in ultra-pure and low-conductivity water environments.
Key Features:
- Designed for ultra-pure water (0.5–100 μS/cm conductivity)
- Ground glass junction for stable ion exchange
- Ultra-low impedance membrane for rapid response
- IP68-rated for continuous immersion
- Double-junction reference system ensures long-term signal stability
The HH SCIENCE HH2500P is a precision-engineered pH electrode optimized for clean and pure water applications, featuring a low-impedance cylindrical membrane and dual-junction design for high measurement accuracy, rapid response, and mechanical durability.
Key Features:
- Designed for 20–300 μS/cm conductivity range
- Dual-junction reference system for extended lifespan
- IP68-rated for continuous submersion
- Low-impedance membrane for fast and accurate readings
- Durable cylindrical membrane resists mechanical stress