conductivity meter

Blogs

EC-Based Nutrient Dosing Control for Hydroponic and Greenhouse Systems: Field Practices from Shanghai ChiMay

Electrical conductivity (EC) is the practical proxy for total dissolved fertilizer salts in hydroponic and greenhouse solutions, measured in mS/cm or μS/cm at 25 °C. Reliable EC control depends on three engineering choices: cell type, temperature compensation, and injection point geometry. Shanghai ChiMay’s in-line conductivity meter, in-line conductivity electrode, and 2-in-1 mini transmitter form a…

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Blogs

Understanding Softener Valve Cycles in High-Hardness Make-Up Water: A Shanghai ChiMay Field Guide

Ion-exchange softeners are the workhorse of HVAC make-up water conditioning, and the valve at the top of the resin tank governs everything the operator cares about: throughput, salt use, backwash volume, and resin life. In water systems fed by hard groundwater — often 350–650 mg/L as CaCO3 — the softener valve does not simply “cycle.”…

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Blogs

Top 5 HVAC Pain Points Solved by Shanghai ChiMay Conductivity Analyzers

Top 5 HVAC Pain Points Solved by Shanghai ChiMay Conductivity Analyzers Ask a commercial-building HVAC manager what wakes them up at night, and the answer is rarely a fan or a compressor. It is water: the chemistry drifting, the tower blowing down too often, the softener slipping hardness, and the utility bill climbing without a…

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Blogs

The Modern Cooling Tower: A 2026 Operations and Water-Quality Guide by Shanghai ChiMay

Cooling towers have been rejecting heat for more than a century, but the equipment and the operating discipline around them have changed more in the last five years than in the previous three decades. Water scarcity, ASHRAE 188 enforcement, ESG reporting, and hyperscale data-center growth have all lifted the cooling tower from a maintenance afterthought…

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Blogs

The Complete 2026 HVAC Water-Quality Handbook from Shanghai ChiMay

Water quality has moved from a plumbing side-note to a first-class HVAC design decision. Legionella compliance, chiller efficiency, and the cost of replacing a fouled condenser bundle all trace back to what is dissolved and suspended in the loop. This handbook is written as a reference for plant engineers and building operators — the numbers…

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Blogs

Data Center Cooling Water Procurement: Sensor Specs for Hyperscale Facilities from Shanghai ChiMay

Why Cooling Water Has Become a Board-Level Procurement Question A typical 100 MW hyperscale campus running evaporative cooling consumes water on the order of a million gallons per day or more at peak load — most of it evaporating off the open cooling towers, the rest cycling through closed chilled-water loops and blowdown. When water…

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