工業用水質計H-1シリーズは，水質指標の基本9項目（pH／溶存酸素／酸化還元電位／フッ化物イオン濃度／電気伝導率／電気抵抗率／MLSS／濁度／遊離残留塩素）を測定対象としてフルラインアップした。新開発の応答ガラスを採用したpH電極，チップ交換と再生使用を両立した溶存酸素センサ，汚れが付着し難いMLSSセンサ，独自の2光源透過90度散乱法を採用した低ドリフトの濁度センサ，チップ交換式カソード極と電気化学洗浄専用極を備えた遊離残留塩素センサ，ノイズ耐性や環境性能を向上させた変換器など，センサの寿命改善やメンテナンス性の向上を目指した。各機種に搭載したHORIBAの独自性のある特長及びその効果について紹介する。
We have developed the H-1 Series to provide a comprehensive water quality instrumentation product offering for a wide variety of applications. The measurement parameters include the 9 most commonly required parameters for monitoring water quality (pH, DO, ORP, F-, Conductivity, Resistively, MLSS, Turbidity, Residual Chlorine). Unique features incorporated in the design are a new glass membrane for pH, a MLSS sensor with high resistance to fouling, a low drift turbidity sensor with transmitted and scattered light detection at a 90 ° scattering angle, a changeable cathode electrode for residual chlorine analysis and a special purpose electrode for electrochemical cleaning. We targeted sensor enhancements to meet user demands for easy maintenance and longer sensor life as well as transmitter EMC improvements with wider temperature operating ranges and a more rugged environmental design. The H-1 Series instruments are available now. We will introduce the features and characteristics of the H-1 series in detail.