Industrial Grade RS485 Online Nitrite Ion Sensor IP68 Waterproof

ZW-NO2-PR online nitrite ion sensor is an industrial grade digital analytical instrument designed specifically for water quality monitoring. It adopts the ion selective electrode method and can quickly, accurately, and stably detect the concentration of nitrite ions in water bodies. The product has completed two-point calibration before leaving the factory, with built-in automatic temperature compensation function to ensure the reliability of measurement data in different water temperature environments. The whole machine has a compact design and comprehensive functions, suitable for various online monitoring scenarios such as sewage treatment, surface water monitoring, industrial circulating water, aquaculture, etc.

• From the perspective of hardware configuration, the sensor housing is made of corrosion-resistant 316L stainless steel material, with a protection level of IP68, and can be submerged underwater or installed in pipelines for a long time; Combined with 3/4NPT threaded structure, easy and stable installation.
• In terms of signal output, the product adopts RS485 bus interface and follows the standard Modbus RTU communication protocol. It can be directly connected to PLC, DCS, industrial touch screen or third-party data acquisition system to achieve remote real-time monitoring.
• In terms of monitoring performance, the range of nitrite measurement is 0-2000 mg/L, with a resolution of 0.001 mg/L and an accuracy of ± 5%; Equipped with a Pt1000 temperature sensor, it can synchronously output temperature data with a range of 0-40 ℃ and an accuracy of ± 0.3 ℃.
• In terms of power supply and power consumption, it supports a wide voltage supply of 12-24VDC, with a power consumption as low as 0.2W, meeting the long-term online operation needs.
• In terms of maintenance friendliness, the electrode adopts a patented reference system and microporous salt bridge structure, which has a long lifespan and high stability. Users can follow the manual instructions for zero and slope calibration to ensure measurement accuracy during long-term use.

RS485/4-20 mA parameters:

Packaging:

Single gross weight: 1.200 KG

Single package size: 37X26X5 cm

Product Description: 

Customer on-site examples: 

Application: 

• Online monitoring of nitrite in sewage treatment plants
• Surface water and drinking water source water quality testing
• Industrial circulating water and cooling water system
• Nitrite control in aquaculture water bodies
• Automated water quality analysis for pipeline or water tank immersion installation

Certifications：

We are best water quality sensor manufacturer and exporter in China with more than 10 years. Our water quality sensor products are certified  with of CE, ROHS.

Why RS485 for Water Quality Nitrite Ion Monitoring?

Industrial-Grade & Stable Data Transmission: RS485 delivers robust anti-interference performance for real-time, reliable hardness data transmission in harsh environments (e.g., industrial boilers, municipal water supply), ensuring accurate monitoring.
Easy Integration & Scalability:Supports multi-node networking, seamlessly integrates with mainstream PLC/RTU systems, enabling flexible deployment and reducing system integration costs and maintenance complexity.

Production Process:

Why choose us:

1. Strong R & D: 30+ Senior experts and highly educated personnel formed a R & D team, heavy investment, master a number of core technologies and patents.
2. Professional and effective solutions: for smart environmental protection, agriculture and other fields, to provide customized compound networking solutions.
3. Full range of products: covering the whole industry chain products from data collection to platform services to meet diverse needs.
4. Excellent quality: we have perfect quality control system, strictly quality control each production link, low defective rate. 
5. Good service: 7×24 hours fast response, Professional pre-sale, sale, after-sales team support.