Boiler systems are the heart of countless industrial facilities — from power plants and food processing lines to chemical plants and heating stations. But even a small deviation in boiler water chemistry can lead to scaling, corrosion, or carryover, resulting in costly downtime and safety risks.
That is why regular, accurate, and comprehensive boiler water testing is not optional — it is essential. And for professionals who need to test on-site, often without a laboratory, the ERUN-SP9 Portable Multiparameter Boiler Water Quality Meter offers a complete, field-ready solution.
Poor boiler water chemistry directly impacts efficiency and safety. Key parameters to monitor include:
Total hardness – causes scale formation, reduces heat transfer
Total alkalinity – influences pH stability and corrosion control
Chloride – indicates contamination or carryover
pH – critical for corrosion prevention (typically 9–11 for steel boilers)
Dissolved oxygen – primary cause of oxygen pitting corrosion
Conductivity & TDS – measure dissolved solids, control blowdown
Phosphate – used for chemical treatment to prevent scale
Iron & Copper – signs of corrosion in feedwater or condensate lines
Manually managing these parameters with separate instruments or sending samples to a lab is time-consuming and impractical, especially for facilities with multiple boilers or remote locations.
The ERUN-SP9 (model series including ERUN-SP9-11) is specifically designed to meet the testing requirements of GB/T 1576-2018 (the Chinese national standard for industrial boiler water). However, its features and performance make it an excellent choice for any boiler operator worldwide.
The instrument measures 11 key boiler water parameters in one compact unit:
| Parameter | Range | Accuracy |
|---|---|---|
| Total Hardness | 0.1–200.0 mg/L | 5%(F.S) |
| Total Alkalinity | 0–1000 mg/L | 5%(F.S) |
| Chloride | 0.20–100.0 mg/L | 5%(F.S) |
| pH (electrode) | 0.00–14.00 pH | ±0.1 |
| Dissolved Oxygen (electrode) | 0–20.0 mg/L | ±0.2 |
| Conductivity | 0.00µs/cm – 199.9ms/cm | ±1.0%(F.S) |
| TDS | 0.0mg/L – 199.9g/L | ±0.5%(F.S) |
| Copper | 0.02–10.0 mg/L | 5%(F.S) |
| Iron | 0.0–10.0 mg/L | 5%(F.S) |
| Turbidity | 0–400 NTU | ≤2%(F.S) |
| Phosphate | 0.01–50.0 mg/L | 0.2 or 5% |
This means you can carry one instrument instead of a dozen different test kits or meters.
Boiler water testing often requires sample digestion (e.g., for total hardness or phosphate). The ERUN-SP9 features a built-in 8-hole, dual-temperature zone digester (4+4) with independent temperature control. You can digest multiple samples at different temperatures simultaneously — saving hours of waiting time.
Temperature range: Room temperature to 200°C
Precision: ±0.5°C
Timer: 1–9999 minutes adjustable
The instrument combines spectrophotometry (16 optical channels) and electrode methods (pH, DO, conductivity, TDS). Automatic wavelength selection ensures correct measurement without manual adjustment.
IP-rated protection – dustproof, waterproof, impact-resistant case
Large built-in battery – 63W charging power, UN383 certified, supports up to 48 hours of continuous operation (or 3 hours of continuous digestion)
Weight – 9.1 kg (complete kit with case)
Dimensions – 455×333×140 mm – fits in a vehicle or small workspace
Stores 200 factory curves + 3,000 user-defined curves
Holds up to 100,000 measurement records (parameter, concentration, unit, date, operator ID)
Built-in thermal printer for on-site report generation
USB port and ERUN cloud software for data export and archiving
5-inch color touchscreen with bilingual interface (English/Chinese)
One-key factory reset to recover lost data
Password-protected settings to prevent unauthorized changes
Certified with CE, RoHS, ISO, and SIL4 – ready for international markets
Design patent (ZL 2025 3 0092758.1) – proof of innovation
Industrial boiler operators (steam and hot water boilers)
Facility maintenance teams in hospitals, universities, and district heating plants
Water treatment service companies providing on-site boiler chemical monitoring
Inspection bodies conducting regulatory compliance checks
Export-oriented manufacturers who need to demonstrate water quality to international clients
The ERUN-SP9 Portable Multiparameter Boiler Water Quality Meter transforms boiler water testing from a fragmented, lab-dependent chore into a streamlined, on-site workflow. By integrating digestion, photometry, and electrode methods in a single rugged case, it saves time, reduces errors, and ensures your boiler operates safely and efficiently.
For facilities aiming to comply with international standards (GB/T 1576, ASME, or European norms) or simply improve internal water management, the ERUN-SP9 is a reliable, cost-effective investment.
