Nanjing Microsensoren Technology Co.,Ltd
| Principle : | Fluorescence quenching principle |
| Output: | RS485 |
| Power supply: | 12~24 VDC |
| Accuracy: | Oxygen content: ±0.1mg/L; Saturation: ±1%; Temp: ±0.2℃ |
| Range: | Oxygen content: 0~20mg/L; Saturation: 0~200%; Temp: 0~50℃ |
| Max. pressure: | ≤ 3Bar |
Description:
Digital DO sensor, based on the principle of fluorescence quenching, the sensor covers the detection head (fluorescent membrane cap) with a layer of fluorescent material, the LED light source in the sensor emits blue light to the fluorescent material on the surface of the head (fluorescent membrane cap), the fluorescent material is excited to release red light, the higher the dissolved oxygen concentration, the shorter the time from emitting blue light to releasing red light, the dissolved oxygen meter sensor calculates the dissolved oxygen concentration in the medium by using the correlation between the red light release time and the dissolved oxygen concentration (release time). The sensor has built-in temperature compensation and standard RS485 output, which can be connected to various terminals.
Features:
Plug and play on site
Support handheld devices
Support in-situ measurement
RS485 digital interface, Modbus
IP68, can be used underwater for a long time
Matching cleaning nozzle
ASTM international method D888-05 and standard ISO 7289
Parameters:
Product | DO sensor |
Principle | Fluorescence quenching principle |
Range | Oxygen content: 0~20mg/L; Saturation: 0~200%; Temp: 0~50℃ |
Resolution | Oxygen content: 0.01mg/L; Saturation: 1%; Temp: 0.1℃ |
Accuracy | Oxygen content: ±0.1mg/L; Saturation: ±1%; Temp: ±0.2℃ |
Output | RS485 |
Communication | Modbus-RTU |
Compensation | Temp. compensation, salinity compensation, air pressure compensation |
Calibration | Zero and span calibration |
Operating pressure | ≤ 3Bar |
Sample velocity | No restrictions |
Operating temp. | 0～50℃ |
Material | Main rod PPS/ABS, Measuring head stainless steel 316 |
Power supply | 12~24 VDC |
Power consumption | 0.1W |
Protection | IP68 |
Weight | 260g |
Size | ø 35 × 250mm |
Installation | 1" NPT pipe threads at both ends, M16 |
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