The ERUN-SP3-A4 portable hydrogen conductivity meter is CE certified, ISO 9001 compliant, and RoHS compliant—making it fully ready for export to European and international markets with guaranteed quality and safety standards.
Hydrogen conductivity measurement is the industry-standard method for detecting trace anionic impurities in high-purity water systems across power generation, semiconductor manufacturing, and pharmaceutical production. Unlike standard conductivity tests that measure all ions, hydrogen conductivity specifically isolates harmful anions like chloride, sulfate, and nitrate by passing water samples through a hydrogen-form cation exchange resin. This technique delivers 3× higher sensitivity than conventional conductivity measurements, enabling early detection of contamination before it causes equipment corrosion, scaling, or product quality failures.
CE, ISO 9001, and RoHS certifications are your guarantee that the instrument meets EU safety, environmental, and quality management requirements for hassle-free import and deployment.
For international buyers, regulatory compliance is non-negotiable. CE certification confirms that the hydrogen conductivity meter satisfies EU electromagnetic compatibility (EMC) and low-voltage safety directives. ISO 9001 certification ensures the manufacturer maintains a rigorous quality management system from design through production and delivery. RoHS compliance verifies that the instrument is free from restricted hazardous substances, aligning with global environmental standards. The ERUN-SP3-A4 carries all three certifications, eliminating customs clearance risks and assuring end-users of product reliability.
Hydrogen conductivity is the electrical conductivity measured after a water sample passes through a hydrogen-form cation exchange column, revealing the concentration of anionic impurities.
The principle is straightforward: as water flows through the cation exchange resin, all cations (sodium, potassium, calcium, ammonium) are replaced by hydrogen ions (H⁺). Anions such as chloride, sulfate, and nitrate pass through unchanged. The resulting conductivity measurement reflects these anionic impurities—the primary culprits behind boiler corrosion, turbine scaling, and semiconductor wafer defects. Because hydrogen ions have high electrical mobility, hydrogen conductivity is approximately three times more sensitive than standard conductivity for detecting contamination. This makes it the preferred method for monitoring ultra-pure water in critical industrial processes.
Hydrogen conductivity meters are essential in thermal power plants, semiconductor fabs, pharmaceutical facilities, and chemical processing plants where water purity directly impacts equipment life and product quality.
Industry | Application | Why Hydrogen Conductivity Matters |
|---|---|---|
Thermal Power Plants | Boiler feedwater, steam, and condensate monitoring | Prevents corrosion and scaling in turbines and boilers |
Semiconductor Manufacturing | Ultra-pure water for wafer cleaning and rinsing | Prevents ionic contamination that causes electronic defects |
Pharmaceutical Production | Purified water and water-for-injection systems | Ensures compliance with GMP standards for drug safety |
Chemical Processing | Cooling water and process water quality control | Detects contamination early to avoid costly downtime |
Environmental Monitoring | Surface water and wastewater analysis | Tracks ionic pollution levels in discharge waters |
The ERUN-SP3-A4 is designed specifically for these demanding environments, supporting both hydrogen conductivity and standard conductivity measurements in a single portable device.
The ERUN-SP3-A4 delivers 0.001 μS/cm resolution with ±2.5% F·S accuracy, dual-range automatic switching, and an 8-hour battery for field-ready operation.
Specification | Detail |
|---|---|
Model | ERUN-SP3-A4 |
Measurement Range | K=0.01cm⁻¹: (0.000–2.000) μS/cm and (0.00–20.00) μS/cm |
Accuracy | ±2.5% F·S |
Resolution | 0.001 μS/cm |
Repeatability | ≤1% |
Temperature Sensor | Pt1000 |
Temperature Compensation Range | (0–60)°C |
Water Sample Temperature | (5–60)°C |
Sample Flow Rate | 0.3–0.5 L/min |
Battery Life | Up to 8 hours continuous use |
Data Storage | Cycle storage, retains data >10 years after power failure |
Display | 128×64 dot matrix LCD |
Key features include dual ion exchange columns for extended service life, color-changing resin that visually indicates when replacement is needed, automatic 25°C temperature compensation, and a built-in flow meter for consistent sampling conditions. The integrated carrying case design protects the instrument during field transport.
The ERUN-SP3-A4 maintains accuracy through automatic temperature compensation, dual-range switching, and color-changing resin that prevents measurement from exhausted columns.
Temperature fluctuations significantly affect conductivity readings. The ERUN-SP3-A4 automatically compensates all measurements to 25°C, ensuring consistent results across varying ambient conditions. The dual-range function automatically selects the appropriate measurement range, preventing overload errors and maintaining precision across pure water and more concentrated samples. The hydrogen-form cation exchange resin incorporates a color indicator that changes from deep blue to reddish-brown as the resin approaches exhaustion. This visual warning allows operators to replace the resin before it compromises data integrity—a critical advantage over meters without this feature.
The ERUN-SP3-A4 complies with DL/T 502.29-2019, GB/T 12145-2016, ASTM D1125, and ISO 7888:2019, ensuring global regulatory acceptance.
For power industry applications, the instrument strictly follows DL/T 502.29-2019 (火力发电厂水汽分析方法 第29部分: 氢电导率的测定) and GB/T 12145-2016 for steam power equipment water quality. The sensor design aligns with ASTM D1125 (Standard Test Methods for Electrical Conductivity and Resistivity of Water) and ISO 7888:2019 for measurement traceability. This multi-standard compliance means the ERUN-SP3-A4 can be deployed in facilities worldwide without requalification—a significant advantage for multinational procurement teams.
China is the world's largest manufacturer of water quality analyzers, offering competitive pricing, rapid production, and full certification support for international buyers.
Chinese manufacturers like Xi’an Erun Environmental Protection Technology Group combine advanced manufacturing capabilities with rigorous quality control systems. The ERUN-SP3-A4 is produced in facilities operating under ISO 9001:2015 quality management standards, with CE and RoHS certifications validated for European market entry. Export logistics are streamlined, with products shipped worldwide from manufacturing hubs in Xi’an and other major industrial centers. For buyers seeking reliable hydrogen conductivity meters at competitive prices without compromising on quality or compliance, Chinese manufacturers offer an unmatched value proposition.
ERUN-SP3-A4 Portable Hydrogen Conductivity Analyzer – CE, ISO 9001, and RoHS certified. 0.001 μS/cm resolution, 8-hour battery, dual-range measurement. Built for power plants, semiconductor fabs, and pharmaceutical facilities worldwide.
