measuring principle
The suspended matter sensor is based on infrared scattering light technology, that is, the infrared light emitted by the light source will be scattered during the transmission process, and the intensity of the scattered light is directly proportional to the concentration of the suspended matter. The suspended matter / sludge concentration sensor has a scattered light receiver in the 140° direction, and then the suspended matter concentration value is obtained by analyzing the intensity of this group of scattered light.
functional characteristics
Infrared scattering light technology, can eliminate the influence of sample color;
Optional cleaning brush automatic cleaning function, greatly reduce the sensor maintenance;
Digital sensor, strong anti-interference ability, the transmission distance is long;
Standard digital signal output, enabling integration and networking with other devices without a controller
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 achieve wall mounting / panel mounting / clip mounting.
Sensor power supply positive and negative electrode reverse connection protection
Sensor RS485 A / B terminal with wrong power protection
Typical application
Online monitoring of the sludge concentration in each process of the sewage treatment plant;
Online monitoring of suspended matter (sludge concentration) in the water use and wastewater treatment process of various industrial production process.
| Sensing technical parameter |
| measuring range |
0~50000mg/L |
| measurement accuracy |
Less than ±10% of the measured value (depending on sludge homogeneity) or 10mg/L, the largest value |
| repeatability |
±3% |
| resolution ratio |
0.1mg/L,1mg/L |
| pressure limit |
≤0.1Mpa |
| calibration |
Sample calibration, slope calibration |
| Sensor material |
Body: SUS316L(ordinary version), titanium alloy (seawater version)
Upper and lower cover: PPS+ glass fiber, cable: PUR |
| Sensor supply voltage |
9~36VDC |
| output |
MODBUS RS-485 |
| storage temperature |
-15° C to 50 ° C |
| working temperature |
0 to 45 ° C (no freezing) |
| self-cleaning |
Optional automatic cleaning device |
| level of protection |
P68/NEMA6P |
| cable length |
Standard cable length: 10m, extendable 100m |
| size |
Diameter 49mm* Length 230.5mm |
| weight |
0.8KG |
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 |
