China Wholesale Factory PUVNO3-900 UV Nitrate Nitrogen Online Analyzer NO3 Sensor Transmitter Nitrate Water Monitor
Product Description
China Wholesale Factory PUVNO3-900 UV Nitrate Nitrogen Online Analyzer NO3 Sensor and Transmitter Nitrate Water Monitor
Model: PUVNO3-900 Spectrometer NO₃-N Sensor + Transmitter
Core Application: Real-time nitrate nitrogen monitoring for drinking water, surface water, industrial process water & wastewater treatment
Product Specifications
Measuring Range: 0.1~40.0 mg/L (NO₃-N)
Accuracy: ±5% of reading
Minimum Detection Limit: 0.1 mg/L
Resolution: 0.1 mg/L
Sludge / Turbidity Compensation: Supported
Sensor Material: SUS316L Stainless Steel
Calibration: Standard calibration procedure
Power Supply: AC 85–500VAC (50/60Hz); DC 9–36VDC
Analog Output: 3×4–20mA
Relay Output: 3×programmable relays (parameter & threshold configurable)
Communication: MODBUS RS485
Storage Temperature: -15~65℃
Operating Temperature: 0~45℃
Dimensions: Sensor Φ69mm×L380mm; Transmitter 145×125×162mm (L×W×H)
Weight: Sensor 3.2kg; Transmitter 1.35kg
Protection Grade: Sensor IP68/NEMA6P; Transmitter IP65/NEMA4X
Cable Length: Standard 10m (extendable up to 100m)
Recommended Spare Parts: PGP-UVNO3 UVNO3 Sensor Scraper
Measurement Principle
Key Product Features
Direct immersion measurement; no sampling, no pre-treatment required
Reagent-free operation, zero secondary pollution, eco-friendly and cost-saving
Fast response & continuous online monitoring for real-time process control
Built-in automatic cleaning function to reduce maintenance frequency
Power supply reverse polarity protection & RS485 surge protection for stable operation
Optional wireless data transmission module for remote monitoring & IoT integration
Rugged SUS316L construction, IP68 waterproof, suitable for long-term field deployment
Applications
Drinking water plant & municipal water supply network
Surface water, river, lake & reservoir environmental monitoring
Industrial process water & circulating water quality control
Wastewater treatment plant (aeration tank, denitrification process control)
Aquaculture water quality real-time supervision
Why Choose PROBEST PUVNO3-900?
50+ R&D engineers for continuous technology upgrading
Stable performance & consistent accuracy for long-term online use
Complete product line: portable analyzers, multi-parameter sensors, data loggers & telemetry terminals
Flexible OEM/ODM & wholesale support for global partners
Widely used in drinking water, wastewater, surface water, aquaculture & industrial process monitoring
| Model No. | PUVNO3-900 Spectrometer NO3-N Sensor and transmitter |
| Measuring Range | 0.1~40.0mg/L |
| Accuracy | ±5% |
| Mini. detection limit | 0.1 mg/L |
| Resolution | 0.1 mg/L |
| Sludge compensation | yes |
| Sensor material | SUS316L |
| Calibration | Standard calibration |
| Power Supply | AC:85-500VAC (50/60HZ) DC:9~36VDC |
| Output | 3-way 4-20mA |
| Relay | Setting three-way relays, programmed response parameter and response value. |
| Communication protocol | MODBUS RS485 |
| Storage temperature | -15-65℃ |
| Measuring temperature | 0-45℃ |
| Dimensions | Sensor:Diam 69mm*Length 380mm Transmitter:145*125*162mm(L*W*H) |
| Weight | Sensor:3.2KG;Transmitter:1.35KG |
| Protective rate | Sensor:IP68/NEMA6P;Transmitter:IP65/ NEMA4X |
| Cable length | Standard:10M,the maximum may be extended to 100m |
| Suggested Backup spare parts | PGP-UVNO3 : UVNO3 Sensor Scraper |
Measurement Principle:
NO3 absorbs at 210 nm UV light. When the Spectrometer COD probe is working, the water sample flows through the slit. When the light from the light source in the probe passes through the slit, part of the light is absorbed by the sample flowing in the slit, and the other light passes through the sample and reaches the other side of the probe. Calculate the concentration of nitrate.
Features:
1. Spectrometer COD Probe direct immersion measurement without sampling and pre-processing;
2. No chemical reagents, no secondary pollution;
3. Short response time enables continuous measurement
4. The sensor has an automatic cleaning function that reduces maintenance.
5. Sensor power supply positive and negative reverse connection protection
6. Sensor RS485 A/B terminal is connected to the power supply protection
7. Wireless data transmission module for optional
Applications:
1. Drinking water / surface water / industrial production process water / sewage treatment, etc.,
2. Continuously monitor the concentration of nitrate dissolved in water, especially for monitoring sewage aeration tanks, controlling denitrification process
WHY CHOOSE US:
Probest is a professional ISO9001 certificated manufacturer with many patents specializing in researching, developing, producing of water analysis instruments, including portable water analyzer, multi-parameter water quality analyzer, data acquisition and transmission terminal. The product can be applied to the fields of water quality monitoring of drinking water, waste water, surface water, aquaculture water, industrial process water, etc.
Probest is a reliable company including 50+ researchers, focusing on the development of sensor technology to make water analysis faster, simpler, greener and better.
Quality is our core advantages, providing stable and reliable water quality analysis.