Product Introduction:
The COD sensor employs a non-dispersive ultraviolet absorption detection principle to measure organic matter in water. The sensor features a non-dispersive dual-beam design that automatically eliminates interference from turbidity and ambient light. It offers advantages such as long lifespan, maintenance-free operation, no reagents, no pre-treatment, and fast response speed. It can be used in various environments requiring long-term monitoring of COD, including surface water, groundwater, municipal wastewater, and industrial wastewater.
Product Features:
The instrument uses a dual-beam system to achieve automatic compensation for ambient light.
No sample pre-treatment required; fast reaction analysis without any reagents or sampling equipment.
Fast measurement speed, truly real-time online monitoring.
No secondary pollution, no chemical reagents required.
Simple operation with low maintenance costs.
Measurement Principle |
Non-spectrophotometric ultraviolet absorption
|
Measurement Range | 0.1-200mg/L（equiv. KHP） |
Measurement Accuracy | ±2% of reading or 0.5mg/L（equiv. KHP）,whichever is greater |
Resolution | 0.1 mg/L（equiv. KHP） |
Response Time (T90) | <20 seconds |
Communication Mode | RS485 Modbus Protocol |
Calibration Method | Single-point or two-point calibration |
Storage Temperature | -15°C to +65°C |
Temperature Range | 0°C to 50°C |
Installation Method | Immersion type |
Pressure Range | ≤1 Mpa |
Power Supply | DC 12-24V, current <50 mA |
| S33-A | Digital type, 316 stainless steel material, length 215 mm*diameter 45 mm, self-cleaning |
| S33-B | Digital type, 316 stainless steel material , length 177.6 mm*diameter 24 mm, non-self-cleaning. |
