- RS485 signal output
- Ion selective electrode (ISE) method
- Dynamically compensate temperature and pH
- Stable data and good repeatability
- Strong anti-interference ability
- Fast response time
- Low maintenance cost
- Suitable for sewage treatment plant (aeration tank), industrial process plant and river monitoring
N900 Series Digital Ammonia Nitrogen Sensor
| Measuring range: | NH4N: 0.1 to 1000 mg/L; Potassiom, K+: 0.5 to 1000 mg/L; pH: 5 to 10; Temperature: 0 to 40°C |
| Measuring temperature: | 0 to 45°C |
| Resolution: | NH4N: 0.01 mg/L; Potassium, K+: 0.01 mg/L; pH: 0.01; Temperature: 0.1°C |
| Accuracy: | NH4N: ±5 % of the measured value or ± 0.2 mg/L; Potassium, K+: ±5 % of the measured value or ±0.2 mg/L; pH: ±0.1 pH; Temperature: ±0.5°C |
| Response time: | ≤2 minutes |
| Minimum detection limit: | 0.2mg/L |
| Power supply: | DC: 9-36VDC |
| Communication: | RS485 (Modbus) |
| Dimension: | Diameter 55 mm, Length 342 mm |
| Protection: | IP68 / NEMA 6P |
| Signal cable length: | Standard 10 meter |
| Storage temperature: | -15 to 50°C |
IUNI-21 Dual Channel Analyzer
| Display: | 160*160 LCD with backlight |
| Power supply: | AC: 85-500V AC, 50/60Hz DC: 9-36V DC (upon request) |
| Analogue output : | 3 x 4-20mA |
| Relay output: | 3 x relay output (programmed response parameters and value) |
| Communication protocol: | RS485 (Modbus) |
| Ambient temperature: | -20 to 70°C |
| Operation temperature: | -15 to 60°C |
| Protection: | IP65 / NEMA 4X |
| Device weight: | 1.35 kg |
| Device dimension: | 145 (H) x 125 (W) x 162 (D) mm |
| Enclosure: | PA66+GF25+FR (Cover); Aluminium alloy powder (Lower casing) |
| Parameter: | Ammonia nitrogen |
The N900 series online digital ammonium nitrogen (NH4-N) sensor apply the ion selective electrode (ISE) method to measure the concentration of ammonia nitrogen. The N900 integrates ammonium ion selective electrode with the compensation of ion K+ potassium , pH and temperature. These parameters compensate the measurement value of ammonia nitrogen and showing multi-parameter measurement reading. The N900 is completed with standard digital signal output, integrating and networking with other equipment without controller.
The IUNI-21 dual channel analyzer is an effective option that can connect two digital ammonia nitrogen sensors at the same time to reduce the cost of transmitter and installation space:
- Field mounted dual channel analyzer with datalogger
- Connect two sensors at one time
- 4-20mA output
- Relay output
- Communication, RS485 (Modbus)
- LCD visual display
- User friendly and attractive operating interface
Price is indicative, consisting of 1 x IUNI-21 Universal Transmitter and 1 x N900 Digital Ammonia Nitrogen Sensor.