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Suzhou Frog Vision Sensing Technology Co., Ltd
Self cleaning UV254 multi wavelength COD sensor
NegotiableUpdate on 01/21
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Overview
PN:912120， The deep ultraviolet UV LED cold light source used in the 912121912122 frog vision UV254 COD sensor has a long lifespan and low drift. Adopting internationally recognized technology and validated high-precision UV absorption methods. No sample pretreatment required, fast reaction analysis speed, no need for any reagents, no need for sampling equipment. The sensor has a mechanical self-cleaning function and uses a 550nm compensating light source, which can effectively eliminate the influence of turbidity and chromaticity on measurement.
Product Details
Advantages and Characteristics:
•Dual optical path: 254nm and 550nm, which can effectively eliminate the effects of turbidity and chromaticity.
•The UV absorption method is used to determine organic compounds (such as COD, TOC, etc.) without the need for reagents or sample digestion.
•Fast response speed, 10 second response time (T90).
•The cold light source UV LED used has a long lifespan and small drift. Using a filter and PD receiver, with no consumables, long lifespan, and low drift.
•Equipped with an automatic cleaning brush as standard, it can effectively prevent biological contamination.
•Having independent property rights and a stable supply chain of key components, the products have cost-effectiveness.
•Dual optical path: 254nm and 550nm, which can effectively eliminate the effects of turbidity and chromaticity.
•The UV absorption method is used to determine organic compounds (such as COD, TOC, etc.) without the need for reagents or sample digestion.
•Fast response speed, 10 second response time (T90).
•The cold light source UV LED used has a long lifespan and small drift. Using a filter and PD receiver, with no consumables, long lifespan, and low drift.
•Equipped with an automatic cleaning brush as standard, it can effectively prevent biological contamination.
•Having independent property rights and a stable supply chain of key components, the products have cost-effectiveness.
| name | parameter |
|---|---|
| measurement method | UV254 absorption method, compliant with DIN 38402 C2, DIN 38404, and HJ T191 standards |
| measurement range | 6mm optical path 0.15~300mg/L equiv. KHP (COD standard solution @ 25 ℃,<200NTU) 2mm optical path 0.5~1000mg/L equiv. KHP (COD standard solution @ 25 ℃,<200NTU) 2mm optical path 1.5~1500mg/L equiv. KHP (COD standard solution @ 25 ℃,<200NTU) |
| resolution | 0.1mg/L or 0.01mg/L COD |
| repetitiveness | +/-1% FS equiv. KHP |
| Operating temperature range | 0~45℃ |
| Storage temperature range | -10~50℃ |
| auto-cleaning | Yes (default) |
| warranty | 1 年（毛刷除外） |
| Using water depth | IP68, <10 meters |
| power supply | 12V 20mA (normal), 200mA (when the brush rotates), 2mA (sleep mode) |
| output | RS485, Modbus RTU protocol |
| material | Titanium alloy, 316, POM， Nylon and quartz glass |
| size | Length 280mm (excluding cables), appearance 142x157mm (including protective cover, optional) |
| flow velocity | < 3 m/s |
| response time | 10 seconds T90 |
| Service life* | Sensors for 3 years or more, cleaning brush system for 18 months or more |
| Maintenance and calibration frequency* | Sensor 1-3 months, cleaning brush system 6-12 months |
Note: * The lifespan, maintenance, and calibration frequency are for reference only and depend on the actual usage environment.
KHP: Potassium hydrogen phthalate
User Manual for UV254 COD Sensor
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