水中オキシダント計の機能とは?
水中酸化化合物測定器は、試薬を必要とせずに塩水および汽水中の酸化化合物を検出する先進的な測定機器です。3電極を用いた電位パルスボルタンメトリ技術により、高速かつ正確な測定を実現し、革新的な自己洗浄システムにより信頼性を維持します。
水中オキシダント計はORP/酸化還元電位計と混同してはなりません。技術概要を参照のこと：
| 技術概要 | 水中オキシダント計 | ORP / 酸化還元電位計 |
| 測定原理 | Potential Pulse Voltammetry (PPV) with three electrodes | Electrochemical potential difference between two electrodes |
| 対象 | Direct measurement of oxidants (e.g., chlorine, ozone, H₂O₂) | General oxidation-reduction potential (a combined effect of all redox species) |
| 必要試薬 | ❌ No reagents required | ❌ No reagents, but indirect reading |
| 校正 | Typically less frequent due to stable design | Needs regular calibration for accuracy |
| 塩水／汽水用設計 | ✅ Yes, optimized for marine environments | ⚠️ Can be affected by high ionic strength and biofouling |
| 耐汚損性 | ✅ Self-cleaning system helps avoid biofouling | ❌ Prone to fouling, requires regular maintenance |
| 耐圧深度 | ✅ Submersible and rugged | ⚠️ Limited submersion, not always pressure-rated |
| 応答時間 | ⚡ Fast, real-time detection | Moderate to slow, stabilizes over time |
| 選択性 | ✅ High — can distinguish between oxidants | ❌ Low — gives a general redox state on慶次安経過時間 |
| 経時安定性 | ✅ Excellent with pulse technology | ❌ Can drift, affected by contamination or coating on the probe |
Why an Underwater Oxidant Meter?
In various industrial and environmental applications, it is essential to monitor the presence of oxidants in water. The Underwater Oxidant Meter allows you to control water quality parameters, allowing you to efficiently:
Applications of the Underwater Oxidant Meter.
The Underwater Oxidant Meter is used in various industries and applications. When you're looking for general water quality or are on a budget, consider an ORP meter. Perfect applications for the Underwater Oxidant Meter:
Specifications
| Feature | Details |
|---|---|
| Measurement Purpose | Oxidants in seawater and brackish water |
| Measurement Principle | Three-electrode potential pulse voltammetry |
| Measuring method | Microelectrode system with self-cleaning beads |
| Measuring range | 0-2.00 mg/L (Standard) - Optional: 1.00/3.00/5.00 mg/L |
| Repeatability | ±5% of full scale plus one digit |
| Response time | 1 minute (90% response) |
| Temperature compensation | Automatic compensation with a thermistor |
| Conditions | pH range: 5.8-8.6 (variation within ±0.5 pH) Conductivity: ≥10 mS/m (variation within ±10 mS/m) Water temperature: 0 - 45℃ (no freezing) Ambient temperature: -10 - 45°C Humidity: ≤90% RH (no condensation) |
| Installation | Wall mounting (Optional: Tube mounting with U-bolt kit) |
| Resolution | 0.01 mg/L |
| Signal Output | DC 4- 20mA (Isolated, maximum load 500Ω) |
| Alarm outputs | Upper and lower limit alarms (1a each) |
| Control output | Adjustable range: - ±10% of full scale - ±5% of full scale - ±2.5% of full scale |
| Power supply | AC 100-240V (±10% variation) 50/60Hz |
| Pressure resistance | 0.5 MPa |
| Optional accessories | 1. Stainless steel Tube Stand (1500 mm long) 2. Attachment kit for tube (50A) 3. Connection box (sensor cable extension). 4. Dedicated extension cable (available in 10 m lengths). |