Nitrate Nitrogen NO3-N Digital RS485 Water Quality Sensor IP68 Waterproof 0.1-1000 mg/L Range

Price Negotiable
Price: USD300-600
MOQ: 1 Unit
Delivery Time: 5-8 working days
Brand: JUGE
Product Description
Product Overview

This electrochemical nitrate nitrogen (NO3-N) sensor utilizes membrane potential technology to accurately measure ion activity in water solutions. The digital RS485 sensor generates precise readings by detecting membrane potential changes when in contact with target ions, providing reliable water quality monitoring for industrial and environmental applications.

Key Features
  • Digital RS485 output with MODBUS protocol support
  • Reagent-free operation eliminates pollution and reduces costs
  • Ion-selective method ensures fast response and stable signal output
  • PP electrode housing withstands temperatures from 0°C to 50°C
  • High-quality four-core shielded cable for accurate signal transmission
Technical Specifications
Parameter Specification
Power Supply 9-36 VDC
Measurement Range 0.1-1000 mg/L (expandable)
Accuracy ±2.5% of measurement value
Temperature Range 0-50°C
Waterproof Rating IP68/NEMA 6P
Output Interface MODBUS RS485
Pressure Range ≤0.3 MPa
Cable Length Standard: 10 meters (extendable to 100 meters)
Material Main body: PP (Polypropylene); Cable: PVC
Pre-Measurement Preparation
1. Remove protective cap from electrode tip
2. Shake electrode downward to remove internal air bubbles
3. For new or unused electrodes: activate in 1 ppm standard solution for 24 hours
4. Rinse with deionized water, blot dry, and immerse in deionized water for 5 minutes with stirring
Note: Avoid touching the sensitive area with fingers and replace water multiple times during rinsing to prevent measurement errors.
Calibration Procedure
1. Connect electrode to meter and set to mV mode
2. Prepare 100 mL deionized water in 150 mL beaker with stirring
3. Add 1 mL of 1000 ppm standard solution, record stable reading (E₁)
4. Add 10 mL of same standard solution, record stable reading (E₂)
5. Calculate slope at 25°C as E₂ - E₁ and compare with specifications
Storage Guidelines
Short-term: Preserve in deionized water or 1 ppm standard solution
Long-term: Rinse, dry thoroughly, and store in original packaging

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Nanjing Juge Environmental Technology Co., Ltd.
Location Building 17, No. 99 Guangli Road, Moling Subdistrict, Jiangning District, Nanjing, Jiangsu
Contact Person Leon Chen

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