- RS485 signal output
- Spectral Absorption Coefficient (SAC 254 nm) method
- Direct immersion and continuous monitoring
- No chemical reagents
- No secondary pollution
- Automatic cleaning function
- Fast response time
- Low maintenance cost
- Suitable for wastewater treatment plant (inlet, outlet), aquacultural, river and ocean surface water continuous monitoring
B900 Series Digital BOD Sensor
| Measuring range: | 0 to 1500 mg/L BOD (2mm); 0 to 750 mg/L BOD (5mm); 0 to 60 mg/L BOD (50mm) |
| Measuring temperature: | 0 to 45°C |
| Pressure range: | ≤0.4Mpa |
| Accuracy: | ±5% |
| Repeatability: | ±2% |
| Resolution: | 0.01 mg/L |
| Communication: | RS485 (Modbus) |
| Dimension: | Diameter 69 mm, Length 380 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: | BOD (Biochemical Oxygen Demand) |
The B900 series digital spectrometer BOD (Biochemical Oxygen Demand) sensor uses the Spectral Absorption Coefficient (SAC 254 nm) to measure the content of soluble organic compound in the water. This method allows continuous monitoring without any reagents. The B900 is a direct immersion probe, completed with standard digital signal output, integrating and networking with other equipment without controller. This spectrometer method developed to measure trend of continuous reading BOD , less accurate compare to colorimetric method.
The IUNI-21 dual channel analyzer is an effective option that can connect two digital BOD 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 B900 series digital spectrometer BOD Sensor.