measuring principle
Blue and green algae sensor uses the characteristics of absorption peak and emission peak in the spectrum to emit a specific wavelength of monochromatic light into the water, the blue and green algae in the water absorb the energy of the monochrome light, release another wavelength of monochrome light, the light intensity emitted by the blue and green algae is proportional to the content of blue and green algae in the water.
functional characteristics
The target parameters measured based on the fluorescence of pigment can be identified before the potential bloom is affected;
No extraction or other treatment, rapid detection, to avoid the impact caused by the shelving of water samples;
Digital sensor, strong anti-interference ability, the transmission distance is long;
Standard digital signal output, which can be integrated and networked with other devices without a transmitter;
Sensor site installation is convenient and fast, to achieve plug and play;
Simple use, reliable results, interface operation instructions can reduce operation errors;
Set up a visual alarm system to provide important alarm functions;
The controller can realize the wall hanging mounting / panel installation / clip pipe installation;
Sensor power supply positive and negative electrode reverse connection protection;
Sensor RS485 A / B terminal with wrong power protection.
Typical application
Online monitoring of blue and green algae in water plant imports, drinking water sources and aquaculture;
Online monitoring of blue-green algae in different water bodies, such as surface water and landscape water.
| Sensing technical parameter |
| measuring range |
200-300,000cells/mL(Customizable) |
| measurement accuracy |
The signal level of 1ppb Rhodamine dye corresponds to the value ± 10% |
| repeatability |
±3% |
| resolution ratio |
20cells/mL |
| pressure limit |
≤0.4Mpa |
| calibration |
Deviation calibration, slope calibration |
| requirements |
The distribution of chlorophyll in water is very uneven, so multi-point monitoring is recommended. The turbidity of the water is less than 50MTU |
| Sensor material |
Body: SUS316L+PVC,
Upper and lower cover: POM, cable: PUR |
| storage temperature |
-15° C to 50 ° C |
| working temperature |
0 to 45 ° C (no freezing) |
| size |
Diameter 30mm* Length 223mm |
| weight |
0.55KG |
| level of protection |
IP68/EMA6P |
| cable length |
Standard cable length: 10m, extendable 100m |
Controller parameters
| Model |
MDS-KP500 |
| Display |
4.3 inches, 480*800 resolution, 262K color, IPS screen, wide viewing Angle, with backlight |
| |
Capacitive touch screen with three protection processes (moisture-proof, mildew proof, salt spray proof) |
| Display size |
95.0mm*53.9mm |
| Measuring range |
-99999.0000~99999.0000 |
| Password Protection |
The default password is 0000 |
| Compatible sensor |
Digital sensor |
| Mounting method |
Disk mounting (with chassis), wall-mounted mounting |
| Alarm relay |
2 relays can set high and low alarm |
| Current output |
2 isolated 4-20mA, maximum load 750Q, can be set |
| Communication port |
RS485 Modbus RTU |
| Memory backup |
All user Settings are stored indefinitely in EERPOM |
| historical data |
The storage capacity of 8000 points is recorded at a 5-minute interval |
| Operating environment |
-10~+50℃,0~95% relative humidity, no condensation |
| Storage environment |
-20 to +70 ° C,0 to 95% relative humidity, non-condensing |
| The power supply |
12V±10% |
| Power consumption of the instrument |
less than 6W |
| Instrument size |
144X145X85(mm) |
| Protection class |
IP65 |
