Sechang Instruments Blog

Industrial Measurement Guides & Technical Insights

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Performance Certification for Environmental Monitoring Instruments — A Step-by-Step Checklist EN

A guide to performance certification for environmental instruments — application requirements, test items, and conditions for maintaining certification.

Sep 20, 2026 · 0 words

수질자동측정기기 형식승인 취득 완전 가이드 — 신청부터 등록까지 단계별

수질자동측정기기 형식승인의 법적 근거, 신청 서류, 성능시험 항목, 심사 절차와 소요기간을 단계별로 정리한 제조사·운영자용 실무 가이드입니다.

Sep 19, 2026 · 0 words

추석 수영장·정수장 소독관리 — ORP 측정기 완전 가이드

추석 연휴에는 수영장·워터파크 이용객이 몰리고, 정수장·수처리 시설은 최소 인력으로 운영됩니다. 이 시기 소독 상태를 실시간으로 파악하는 핵심 지표가 ORP(산화환원전위)입니다. ORP 측정기 선택과 관리법을 정리했습니다.

ORP 추석SEO 수질관리
Sep 18, 2026 · 1,548 words

UV-Vis Spectrophotometer for Water Quality: Online COD, Nitrate, and Color Monitoring Without Reagents EN

Reagent-free UV-Vis spectrophotometry for online COD, nitrate, TOC, and true color monitoring: SAC254, chemometric calibration, and deployment tips.

water-quality spectrophotometry COD-monitoring reagent-free
Sep 17, 2026 · 1,092 words

pH Electrode Calibration Interval vs Replacement Cycle — A Sensor Total Cost of Ownership (TCO) Guide EN

pH electrodes are consumables. Calibration is not replacement. Compare total cost of ownership by electrode life, buffer, and replacement cost.

Sep 16, 2026 · 0 words

Air Pollutant Monitor Installation and Operation — A Regulatory Compliance Guide for Facilities EN

A practical guide to air pollutant monitor regulations — who must install, what to measure, TMS transmission, and operating and reporting duties for facilities.

Sep 15, 2026 · 0 words

pH 전극 교정 주기 vs 교체 주기 — 센서별 총소유비용(TCO) 비교 가이드

pH 전극은 소모품입니다. 교정 주기와 교체 주기를 혼동하면 운영비가 늘어납니다. 전극 수명·교정액·교체비 3요소로 총소유비용(TCO)을 비교하고 최적 교정 빈도를 찾는 방법을 정리합니다.

Sep 14, 2026 · 0 words

Type Approval for Water Quality Monitoring Instruments — A Step-by-Step Guide from Application to Registration EN

A guide to type approval for water quality monitoring instruments — legal basis, documents, performance testing, review steps and timelines.

Sep 13, 2026 · 0 words

Turbidity Analyzer: NTU Measurement, Sensor Types, and Real-Time Monitoring for Drinking Water and Wastewater Treatment EN

Online turbidity analyzers for drinking water compliance and wastewater TSS: compare nephelometric, ratio, and surface scatter sensors and ISO 7027.

water-quality turbidity drinking-water wastewater
Sep 12, 2026 · 1,070 words

추석 연휴 前 정수장·수처리 탁도 점검 완전 가이드

추석 연휴는 정수장과 수처리 현장에 부담이 큰 시기입니다. 연휴 동안 관리 인력이 최소화되고, 강우나 원수 수질 변화가 겹치면 탁도가 급격히 상승할 수 있기 때문입니다.

탁도계 추석SEO 수질관리
Sep 11, 2026 · 1,736 words

Oil in Water Monitor: PPM/PPB Detection Methods, Sensor Types, and Industrial Wastewater Compliance Guide EN

Oil in water monitoring for wastewater compliance: UV fluorescence, IR, and turbidimetric detection methods, sensor types, and PPM/PPB regulatory limits.

water-quality oil-monitoring industrial-wastewater sensor
Sep 8, 2026 · 1,021 words

Phosphate Analyzer for Wastewater Treatment: Orthophosphate Measurement, Eutrophication Prevention, and Online Monitoring EN

Phosphate analyzer guide for wastewater: orthophosphate and total phosphorus measurement, eutrophication prevention, and online monitoring system selection.

Sep 5, 2026 · 1,920 words