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Help CenterAT4000 Mutiparameter Water Quality Meter pH Sensor ORP Conductivity Dissolved Oxygen Chlorine Turbidity Sensor 4-20ma Water Instrument
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1.Core Functions:
（1）Multi-Parameter Compatibility: compatible with common electrodes such as pH, conductivity, ORP, residual chlorine, turbidity, and dissolved oxygen, enabling one device for multiple uses.
（2）Intelligent Range Selection ：The device automatically matches and switches to the optimal measurement range based on real-time water quality conditions, without manual intervention. This offers two major advantages:
Enhanced Accuracy: Prevents measurement errors caused by improper manual range selection.
Simplified Operation: Significantly reduces operational complexity and improves detection efficiency.
（3）Data Integration & Communication:
Real-time remote monitoring of water quality data.
Automatic recording and storage of data.
Provides a complete data chain for subsequent water quality analysis, process optimization, and data traceability.
Interface: Supports RS485 digital interface.
Protocol: Uses the industrial standard MODBUS-RTU communication protocol.
Capabilities: Can be easily connected to computers, PLCs, or industrial automation control systems to achieve:
2.Application Value: Widely applicable in scenarios requiring collaborative, precise, and continuous monitoring of multiple key water quality physicochemical indicators, such as wastewater treatment, industrial process control, aquaculture, and environmental monitoring.
3.Technical specifications:
Electrobe(probe)
| Item | PH ORP probe | Conductivity | Dissolved oxygen | Turbidity meter | Resdual chorine |
| Range |
pH:0-14 ORP:-1000-1000mV |
0.02-20μs/cm 0.02-200μs/cm |
0-20mg/L 0-20PPm(optional) |
0-100-4000NTU 0.01-120000mg/L |
0-10mg/L 0-20mg/L |
| Accuracy |
pH:0.5 ORP:3mV |
Class 1.5 Class 2.0 |
3% | ||
| Material | PP PC ABS glass | 316L | 316L | 316+PVC | 316L |
| Cable length | standard 5m,custom | standard 5m,custom | standard 5m,custom | standard 5m,custom | standard 3m,custom |
| Amb. |
0-60℃ （self-compensation） |
-40-85℃ | -20-70℃ | -20-70℃ | -20-70℃ |
Transmitter
| Resolution | 0.01mg/L 0.1% 1hPa 0.1℃ |
| Accuracy | 1.5%FS |
| Temperature Measurement Type | NTC10K / PT1000, Auto (A) / Manual (H) |
| Ambient Temperature | -20 to 60 °C |
| Compensation Accuracy | 0.5℃ |
| Maximum Loop Resistance | 750 Ω |
| Protection level |
IP65 |
| Output signal | 4-20mA+RS485 |
| Communication protocal | Modbus-RTU |
| Power supply | AC220V±10% 50Hz/60Hz |
4.Contact us for more details .
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