Portable sewage quality detector: delving into various sewage scenarios, quickly providing feedback on water quality conditions to guide subsequent treatment
Portable sewage quality detector: delving into various sewage scenarios, quickly providing feedback on water quality conditions to guide subsequent treatment [Model: TW-SS07, IoT integrated device, Tianwei Environment supports customized services]In scenarios such as industrial wastewater discharge supervision, municipal sewage pipe network inspection, and emergency response to sudden pollution incidents, rapid and accurate judgment of sewage quality is the core prerequisite for formulating treatment plans. Portable sewage quality detectors, with their flexibility and efficiency, have become a "mobile laboratory" that goes deep into various types of sewage sites. This device adopts a modular design and can quickly switch detection parameters for different types of wastewater (such as chemical wastewater, domestic wastewater, aquaculture wastewater, etc.). Through a high-precision sensor array, it synchronously captures key indicators such as chemical oxygen demand (COD), ammonia nitrogen, pH value, and heavy metal ion concentration. Its anti-interference electrode and intelligent calibration technology can effectively eliminate the influence of sewage turbidity, chromaticity, and impurities on measurement results. The operator only needs to sample and immerse the probe into the sewage to obtain stable data within seconds, and generate a water quality assessment report through the built-in analysis software, intuitively marking out the excessive items and pollution risk levels, providing scientific basis for subsequent process adjustments such as sedimentation, filtration, and biological treatment, and helping to achieve precision and efficiency in sewage treatment.

1、 Product Introduction
The SS07 portable multi parameter water quality analyzer is an electrode based water quality analysis instrument that uses fully digital electrodes to detect water quality, water temperature, conductivity, and other parameters PH、 Ammonia nitrogen, dissolved oxygen cod、 Turbidity parameter. The instrument is equipped with a self-developed FTIOT operating system, which is easy to operate, stable in performance, accurate in measurement, and has a wide detection range. It is also equipped with a high-capacity rechargeable lithium battery, making it convenient for users to conduct water quality testing in the field or laboratory at any time.
2、 Host parameters
| Charging input voltage |
4.5V-5.5V |
| charging current |
<2A |
| screen size |
3.5 inches |
| screen resolution |
480*800 ☆ |
| Screen interface |
MIPI DSI ☆ |
| USB port |
2 (Supports external mouse, keyboard, 4G, etc.) ☆ |
| Type-C |
1 (Supports external mouse, keyboard, 4G, etc.) ☆ |
| RS485 |
2 (Supports Modbus, JSON, ASC inputs, etc.) |
| External sensor supply voltage |
12V |
| External sensor power supply current |
1A |
| operating system |
Ftiot (based on Linux-5.4) ☆ |
| CPU |
2*Cotex-A7,650Mhz ☆ |
| RAM |
512M DDR3 ☆ |
| Flash |
8G-64G |
| OpenGL |
ES 2.0 ☆ |
| Wifi |
support |
| 4G |
optional |
| button |
support |
| Capacitive touch screen |
support |
| software architecture |
B/S ☆ |
| Web access |
Support ☆ |
| MTP mode |
Support ☆ |
| Multi terminal login |
Support ☆ |
| IPv6 |
Support ☆ |
| Sensor communication method |
RS485、TCP、UDP、Http ☆ |
| Data forwarding method |
RS485、TCP、UDP、Http ☆ |
| Remote SSH |
Support ☆ |
| remote debugging |
Support ☆ |
3、 Sensor parameters and configuration
| serial number |
name |
measurement range |
principle |
measurement accuracy |
resolution |
configuration |
remark |
| 1 |
temperature |
0~50℃ |
High precision digital sensor |
±0.3℃ |
0.01℃ |
✔ |
|
| 2 |
pH |
0~14(ph) |
Electrochemistry (salt bridge) |
± 0.1PH |
0.01 |
✔ |
|
| 3 |
ORP |
-1500mv~1500mv |
Electrochemistry (salt bridge) |
± 6mv |
1mV |
|
|
| 4 |
conductivity |
0~5000uS/cm,0~10000uS/cm |
Contact electrode method |
± 1.5% |
1uS/cm |
✔ |
|
| 5 |
TDS |
0-10000ppm 0-200ppt |
Contact electrode method |
±1.5%; ±0.1°C |
1ppm 0.01ppt |
|
|
| 6 |
salinity |
0-10000ppm 0-200ppt |
Contact electrode method |
±1.5%; ±0.1°C |
1ppm 0.01ppt |
|
|
| 7 |
sludge concentration |
0~20.000g/L |
scattered light method |
± 5% (depending on sludge homogeneity) |
0.001g/L |
|
|
| 8 |
turbidity |
0~40NTU (low turbidity) |
scattered light method |
± 1% |
0.1NTU |
|
Optional |
| 0~1000NTU (medium turbidity) |
scattered light method |
± 1% |
|
| 0~3000NTU (high turbidity) |
scattered light method |
± 1% |
✔ |
| 9 |
dissolved oxygen |
0~20mg/L |
Fluorescence lifetime method |
± 2% |
0.01mg/L |
✔ |
|
| 10 |
ammonia nitrogen |
0-1000.00mg/L (default) 0-1000mg/l/(customizable) |
Ion selective electrode method |
10% of the reading, ± 0.5 ℃ |
0.01mg |
✔ |
Range optional |
| 11 |
suspended solids |
0~2000mg/L |
scattered light method |
± 5% (depending on sludge homogeneity) |
0.1mg/L |
|
|
| 12 |
residual chlorine |
0~5.00 mg/L |
Ion selective electrode method |
± 5% of the reading |
0.01mg/L |
|
The best accuracy is achieved when the flow rate is between 0.42m/s and 0.85m/s |
| 13 |
chloride ion |
0-3500.0mg/L |
Ion selective electrode method |
±5% |
0.1mg/L |
|
|
| 14 |
Total Hardness |
0~1000.0mg/L |
Ion selective electrode method |
± 10% of the reading |
0.1mg/L |
|
|
| 15 |
cod |
0~1000mg/ L |
UV254 absorption method |
±5% |
0.1mg/L |
✔ |
COD and chlorophyll are equipped with automatic cleaners to prevent biological attachment and avoid light window pollution, ensuring long-term monitoring stability; Automatic cleaning time and frequency can be set, with a power consumption of 0.7W |
| 16 |
chlorophyll |
0~400ug/L |
fluorescence method |
R2>0.999 |
0.01ug/L |
|