Digital blue-green algae sensor can be directly connected to
PLC,DTU water quality monitoring systems without controller
Introduction
The online blue-green algae sensor uses the principle of
fluorescence
method, which is more efficient and faster than the traditional
manual
counting method, and can be monitored in real time online. The
sensor
has better repeatability and stability. With automatic cleaning
brush, it can
eliminate air bubbles and reduce the impact of contamination on the
measurement, make the maintenance cycle longer, and maintain
excellent
stability for long-term online use It can play an early warning
role on algae
reproduction.
Features
★ Digital sensor, RS-485 output, support MODBUS
★ With automatic cleaning brush to prevent contamination and
eliminate air bubbles
★ Direct measurement, simpler than traditional manual counting
method
★ Continuous online monitoring, real-time control of water quality
dynamics
Technical parameter
| Product name | Blue-green Algae Sensor |
| model | DS206 |
| principle | Fluorescence method |
| Range | 0-270, 000 cells/mL |
| Detection limit | 300 cells/mL |
| Resolution | 1 cells/mL |
| Linearity | R2>0.99 |
| temperature range | 0~ 50°C |
| Protection level | Ip68 |
| Sensor interface | Support RS-485, MODBUS protocol |
| Installation | Input type, |
| Power information | DC 5~12V, current <50mA |
| size | Φ45*175.8mm |
| Probe cable length | 10 meters (default), can be customized |
| Housing material | SS316 |
| Self-cleaning system | Have |
Maintenance methods and common problems Maintenance schedule and
method
I. Maintenance schedule
Online blue-green algae sensor with automatic cleaning brush can be
automatically cleaned without frequent cleaning.
| Maintenance task | Recommended maintenance frequency |
| Calibrate the sensor (if required by the competent authority) | According to the maintenance schedule required by the competent
authority |
2. Maintenance method Sensor maintenance
- External surface of the sensor: Clean the external surface of the sensor with tap water. If debris
remains, wipe it with a moist soft cloth. For some stubborn dirt,
you can add some household washing solution to the tap water to
clean it.
- Check the cable of the sensor: the cable should not be tightened during normal work, otherwise
the internal wires of the cable will be easily broken and the
sensor will not work properly.
3) Check whether the measurement window of the sensor is dirty and
whether the cleaning brush is normal.
- Check the sensor's cleaning brush for damage.
- 18 months of continuous use, need to return to the factory to
replace the dynamic sealing device.
Cable Definition
Power information
The power supply must be DC 5-12V +/-5%, current <50mA
Cable information
4 wire AWG-24 or AWG-26 shielding wire. OD=5mm
1, red line - power supply (VCC)
2, white line - 485 data _B (485_B) 3, green line --- 485 data _A
(485_A) 4, black line --- ground (GND)
5, bare line shielding layer
Quality assurance
Our company assures first-hand buyers that there will not be any
product defects caused by substandard materials or factory
manufacturing within one year from shipment.
Because the sensor has an automatic cleaning brush and a motor, it
belongs to a dynamic seal structure. After 18 months of continuous
use, the dynamic sealing device needs to be returned to the
factory. If the buyer does not return to the factory and the sensor
enters the water or fails to work, all consequences caused by the
buyer shall be borne by the buyer If a defect is found during the
warranty period, it is promised to repair or replace the defective
product, or return the payment in addition to the first shipping
and related formalities. Any product repaired or replaced during
the warranty period will only enjoy the remaining warranty period
of the original product.
After receiving the customer's questions about product quality, our
company will confirm whether the product needs to be repaired
within two weeks; products that have not been
