Sechang Instruments Blog

Industrial Measurement Guides & Technical Insights

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Karl Fischer Titration Complete Guide: Volumetric vs. Coulometric Methods and Selecting the Right Moisture Analyzer

Karl Fischer moisture titration: volumetric vs coulometric selection, and application guide for battery, semiconductor, pharma, and food industries.

수분분석 Karl Fischer 분석기기
Jul 27, 2026 · 1,206 words

Multiparameter Water Quality Meter Selection by Industry: Parameter Matrix for Wastewater, Food Processing, Semiconductor, and Aquaculture

Multi-parameter vs single-parameter water quality meters: simultaneous DO, pH, and conductivity capture for wastewater, food, semiconductor, and aquaculture.

수질측정 다항목측정기 pH DO 전도도 탁도 수질계측
Jul 27, 2026 · 1,061 words

Mercury in Water: Regulatory Limits, Cold Vapor AAS vs ICP-MS vs Field Test Kits — How to Choose

Mercury water analysis guide: WHO 0.001 mg/L limit, Cold Vapor AAS vs ICP-MS vs field test kit selection for industrial and drinking water compliance.

Mercury Heavy Metals Water Quality Environmental Monitoring CVAAS
Jul 27, 2026 · 1,924 words

Industrial Flow Meter Types: A Complete Selection Guide for Engineers

Compare positive displacement, electromagnetic, ultrasonic, and Coriolis flow meters with practical selection criteria for field engineers.

유량계 계측기 산업장비 실무가이드
Jul 21, 2026 · 1,329 words

Electrical Conductivity Measurement Guide: Sensors, Cell Constants, and Industrial Applications

Conductivity sensor guide: 2-electrode, 4-electrode, and inductive types for ultrapure water, boiler, and cooling tower monitoring.

수질측정 전도도 순수 보일러 도금
Jul 21, 2026 · 1,050 words

Special Environment pH Measurement: High Temperature, HF-Resistant, and High-Alkalinity Electrodes

pH measurement in high-temperature, HF, and high-alkalinity environments; indirect concentration via inductive conductivity and density meters.

수질측정 pH 전도도 농도계 비중계
Jul 21, 2026 · 1,043 words

Free Chlorine and Water Hardness Measurement: The Industrial Field Guide

Guide to free chlorine DPD amperometric and water hardness testing for cooling towers boilers and pools

수질측정 잔류염소 경도 정수장
Jul 21, 2026 · 1,050 words

The Complete Guide to Industrial pH and ORP Meters: Principles, Electrode Selection, and Calibration

Industrial pH and ORP guide: electrode selection for wastewater, food, and chemical applications, calibration, troubleshooting, and maintenance.

수질측정 pH ORP 전극 센서
Jul 21, 2026 · 1,283 words

COD and BOD Measurement: Methods, Instruments, and Online Monitoring for Industrial Wastewater

COD and BOD measurement principles, spectrophotometer and online analyzer selection, and real-time monitoring for industrial wastewater compliance.

수질측정 COD BOD TOC
Jul 21, 2026 · 1,336 words

Coating Thickness Measurement: Magnetic, Eddy Current, Ultrasonic, and XRF Methods Explained

Magnetic, eddy-current, ultrasonic, and XRF coating thickness methods explained, plus a QNix and Fischer model comparison and a field selection guide.

두께측정 도막 코팅 도금 품질검사
Jul 21, 2026 · 1,243 words

Field Water Quality Testing: Portable Instruments, Rapid Test Kits, and Field QC Protocols

WAK pack tests and DR6000 spectrophotometry for field water quality: rapid test kits for residual chlorine, COD, and heavy metals.

수질측정 검사키트 WAK DR6000
Jul 21, 2026 · 1,483 words

Industrial Gas Detection: Sensor Technologies, Confined Space Safety, and Emissions Monitoring

Industrial gas detection guide: VOC, H2S, LEL, O2 sensors, PID-based VOC meter selection, and confined-space safety monitoring.

대기측정 가스 VOC 분진 안전
Jul 21, 2026 · 1,368 words