把选型、原理、维护、安装与行业应用讲清楚，让采购与调试少走弯路。内容由工程师团队整理并持续更新。Explaining selection, principles, maintenance, installation and applications so that purchasing and commissioning run more smoothly. Compiled and updated by our engineering team.
按工况与需求梳理选型逻辑，给出可落地的判断顺序。Practical selection logic organised by duty and requirement.
4 篇 / 4 articles讲清测量原理与工作方式，理解读数背后的物理化学过程。How the measurement works, and the physical and chemical processes behind the reading.
1 篇 / 1 articles标定方法、清洗保存与寿命判断，降低现场维护成本。Calibration, cleaning, storage and end-of-life judgement to cut site maintenance cost.
1 篇 / 1 articles安装方式、布线规范与干扰处理，避免装完不好用。Installation forms, wiring practice and interference handling, so commissioning goes smoothly.
1 篇 / 1 articles按行业与工艺段给出典型测量点与配置思路。Typical measuring points and configuration approaches by industry and process stage.
水质、污泥、测量方法与电气信号的常用术语，含中英对照与单位。Common terms for water quality, sludge, measuring methods and electrical signals, with Chinese-English pairs and units.
按品牌与系列整理的可供货型号与配套件，参数以原厂样本为准。Supplied models and accessories organised by brand and series; specifications follow the manufacturer data sheet.
市政污水、自来水、食品废水、电镀、循环冷却水与分散式站点的典型配置思路。Typical configuration approaches for municipal sewage, drinking water, food effluent, plating, cooling water and decentralised sites.
哈希 HACH、G+F（+GF+ Signet）、安尼康 AMCON 与 UniMAT 的品牌档案与选型要点。Profiles and selection points for HACH, G+F (+GF+ Signet), AMCON and UniMAT.
在线水质仪表选型不是先挑型号，而是先明确「测什么指标、什么工况、怎么装、怎么维护」。本文按六个步骤给出一套可落地的选型框架。Selecting online water-quality instruments starts not from a model number but from four questions: what to measure, under what conditions, how to install, and how to maintain. This article gives a practical six-step framework.
阅读全文Read more 维护与校准 / Maintenance & calibrationpH 测量不准，八成问题出在电极而不是变送器。本文讲清玻璃电极的测量原理、两点标定的判断标准、清洗与保存方法，以及寿命到期的判断依据。When pH measurement is wrong, eight times out of ten the electrode is the cause, not the transmitter. This article explains the glass-electrode principle, the acceptance criteria for two-point calibration, cleaning and storage, and how to tell when an electrode is at end of life.
阅读全文Read more 选型指南 / Selection guides荧光法与膜法溶解氧仪在原理、维护量与适用场景上差别明显。本文给出两者的对比与选型建议，以及标定与常见故障处理方法。Optical (fluorescence) and membrane (electrochemical) dissolved oxygen sensors differ clearly in principle, maintenance and suitable duties. This article compares them and covers calibration and troubleshooting.
阅读全文Read more 原理科普 / Measuring principles浊度与 MLSS 都用光学散射法测量，但量程、标定方式与干扰因素差别很大。本文讲清两者的原理差异、量程选择、清洗方式与常见干扰。Turbidity and MLSS are both measured by optical scattering, but they differ greatly in range, calibration and interference. This article explains the principles, range selection, cleaning options and common interferences.
阅读全文Read more 原理科普 / Measuring principlesCOD 与氨氮在线分析仪多为湿化学法，涉及试剂消耗与废液处置。本文讲清消解比色法与 UV 法的差异、试剂构成、维护周期与选型时容易忽略的成本项。Online COD and ammonia analysers are mostly wet-chemical instruments involving reagent consumption and waste disposal. This article covers digestion colorimetry versus the UV method, reagent composition, maintenance intervals and cost items that are easy to overlook.
阅读全文Read more 原理科普 / Measuring principles余氯是饮用水与泳池水消毒控制的关键指标。本文区分游离氯、化合氯与总氯，讲清 DPD 比色法与电极法的原理、影响因素与选型建议。Residual chlorine is the key disinfection control parameter for drinking water and pools. This article distinguishes free, combined and total chlorine and explains the principles, influencing factors and selection of DPD colorimetry and the electrode method.
阅读全文Read more以下由管理后台直接发布，无需重新部署网站。Published directly from the admin console, with no redeployment.