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Products
Portable water quality tester
Laboratory benchtop water quality analyzer
On-line water quality monitoring equipment
Reagent consumables
Application
Boiler water
Recirculating cooling water
Drinking water/tap water
Secondary drinking water supply plant
Farmland irrigation water
Sewage/waste water
Surface water(Rivers and Lakes, etc.)
Aquaculture water
pool water
News&Case
Company News
Industry information
Case
Services
After-sale
FAQ
Data download
About
Company Profile
Qualification Patents
History
Cooperative Clients
Contact
Contact
Message
+8618189135710
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25
2024.01
What is the purpose of industrial boiler water supply test?
In China's industrial boiler is widely used in chemical industry, food, brewing, heating, paper making, printing and dyeing, rubber and other industries. So, what is the purpose of these industrial boiler water supply testing?
2024.01.25
26
2025.12
What happens if alkalinity is too low? Test & Fix
This article explains the chemistry, real-world impacts, how to test (including the ERUN‑ST7), how to raise alkalinity safely, and how to prevent repeat problems.
2025.12.26
26
2025.12
How Does Total Alkalinity Affect Water? Test with ERUN-ST7
Total alkalinity controls water's buffering capacity — how well it resists pH change. That single property affects taste, corrosion vs. scaling, disinfection, and aquatic health. This article explains how total alkalinity affects water, how to measure and adjust it, and how the ERUN‑ST7 water quality analyzer helps you diagnose and manage alkalinity-related problems.
2025.12.26
25
2025.12
What Affects Dissolved Oxygen Levels in Water? A Practical Guide for Accurate Testing
In this article, we will explain the key factors that influence dissolved oxygen, why DO levels matter, and how to measure them accurately using professional equipment such as the ERUN-ST7 desktop multi-parameter water quality analyzer from Erun.
2025.12.25
24
2025.12
Is a Water Test Required on Boilers? A Complete Guide for Boiler Water Quality Control
In this article, we explain why boiler water testing is essential, what parameters should be monitored, and how portable water quality analyzers like ERUN-SP7 can simplify on-site testing.
2025.12.24
24
2025.12
What Is the TDS Range for Boiler Feed Water? A Practical Guide for Engineers
In this guide, we explain what TDS is, why it matters, recommended TDS ranges, and how to accurately test and control TDS using modern water quality instruments like the ERUN-SP7 portable multi-parameter water quality detector.
2025.12.24
23
2025.12
How to Check TDS of Water: A Practical Guide for Accurate Water Quality Testing
In this guide, we'll explain what TDS is, why it matters, and the most reliable methods to measure it—both in the lab and in the field.
2025.12.23
23
2025.12
How Much TDS in Water Is Safe? Standards, Health Impact & Testing Guide
In this article, we explain what TDS is, safe TDS levels for different applications, health and industrial impacts, and how to accurately test TDS using professional water quality instruments like the ERUN-SP7 portable multi-parameter water quality detector.
2025.12.23
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