Automatic water quality samplerIt is an intelligent environmental monitoring device used to automatically collect water samples and save them under preset time, flow rate, or specific triggering conditions. It is widely used in scenarios such as rivers, lakes, reservoirs, sewage outlets, sewage treatment plants, and drinking water sources. It is an important technical support for water environment monitoring, pollution tracing, and water quality standard assessment.
This instrument usually consists of a sampling pump, a sampling device, a refrigeration system (4 ℃ constant temperature), a control unit, a sample bottle group, and a communication module. According to different sampling modes, it can be divided into various methods such as time proportional sampling, flow proportional sampling, remote command sampling, and over limit trigger sampling. For example, during the rainstorm, the sampling frequency can be dynamically adjusted according to the flow change to accurately capture the pollution peak; In the event of a sudden pollution incident, remote command can be used to immediately initiate sampling, providing first-hand evidence for emergency response.
Automatic water quality samplerThe main characteristics are:
1、 Highly automated: reducing manual intervention
Timed/flow triggered sampling
Timed sampling: The sampling time interval can be preset (such as every 2 hours, every 12 hours) to achieve periodic automatic sampling, suitable for long-term continuous monitoring.
Flow triggered sampling: Real time monitoring of water flow through a flowmeter, automatically triggering sampling when the cumulative flow reaches the set value (such as 1000 cubic meters), ensuring that the sampling amount is proportional to the actual discharge amount, suitable for industrial wastewater discharge monitoring.
Event triggered sampling: Combined with water quality sensors (such as pH, COD, ammonia nitrogen), sampling is immediately initiated when water quality parameters exceed the standard to quickly capture pollution events.
Automatic cleaning and moisturizing
Before sampling, automatically rinse the sampling pipeline with pure water or on-site water to avoid cross contamination of residual water samples and ensure the accuracy of each sampling.
Automatically drain the pipeline after sampling to prevent microbial growth or chemical precipitation blockage.
2、 Accurate sampling: ensuring data reliability
Proportional mixed sampling
Functional principle: Mix samples from multiple time points or flow rates in proportion to form a representative comprehensive water sample. For example, collecting 12 samples with equal time intervals within 24 hours and analyzing them after mixing can reflect the daily water quality.
Application scenario: Environmental protection departments conduct daily assessments of the water quality standards at the outlet of sewage treatment plants to avoid misjudgments caused by instantaneous fluctuations.
High precision flow control
By using peristaltic pumps or vacuum pumps and adjusting the pump speed, precise control of the sampling volume can be achieved (with an error of ≤± 1%), meeting the strict requirements for sample volume in laboratory analysis.
3、 Flexible configuration: Adapt to diverse needs
Multi parameter compatibility
Support integration with multiple water quality sensors (such as pH, conductivity, dissolved oxygen, turbidity, heavy metal ions) to achieve linkage between sampling and real-time monitoring. For example, when the pH value is abnormal, samples are automatically collected and time stamped for subsequent traceability analysis.
Multi channel sampling capability
Equipped with multiple independent sampling bottles or sampling pipelines, it can simultaneously collect samples from different positions (such as inlet, outlet, intermediate processing unit) or different time periods, meeting the needs of comparative analysis. For example, in industrial wastewater treatment, samples of raw water, primary treated water, and secondary treated water are collected separately to evaluate the treatment effect.
Sample preservation and pretreatment
Refrigerated storage: Equipped with a built-in refrigeration module, the sample temperature is controlled below 4 ℃ to suppress microbial activity and extend the sample storage time (up to 7 days), suitable for scenarios that require laboratory analysis.
Chemical fixation: Automatically adding fixatives (such as sulfuric acid, nitric acid) to prevent heavy metal ion precipitation or organic matter decomposition, ensuring the chemical stability of the sample. For example, when collecting mercury containing wastewater, sulfuric acid fixative is added to prevent mercury volatilization.
4、 Reliable and durable: adaptable to harsh environments
High protection level
The whole machine adopts IP65 or above protection design, dustproof and waterproof, and can be deployed outdoors for a long time (such as river and lake monitoring stations) or in humid environments (such as sewage treatment plants).
Corrosion resistant materials
The parts in contact with water samples, such as sampling tubes, sampling bottles, and pump heads, are made of corrosion-resistant materials such as polytetrafluoroethylene (PTFE) and stainless steel 316L to avoid equipment damage caused by water acidity, alkalinity, or chemical composition.
Power outage protection and data backup
Built in UPS uninterruptible power supply can automatically save the current sampling data and complete the current sampling process in case of sudden power failure, avoiding data loss.
Supports SD card or cloud data storage, capable of storing tens of thousands of sampling records for easy historical data tracing.
5、 Intelligent management: improving operation and maintenance efficiency
Remote monitoring and control
Through 4G/5G, Wi Fi or RS485 interfaces, remote setting of sampling parameters (such as time, flow rate, triggering conditions), starting/stopping sampling, and viewing real-time status (such as remaining amount of sampling bottles, equipment fault codes) can be achieved.
For example, the environmental protection department can remotely monitor the sampling situation of multiple monitoring points through a mobile app and adjust the sampling strategy in a timely manner.
Automatic alarm and maintenance reminder
When the equipment malfunctions (such as pump blockage, sampling bottle filling, refrigeration failure) or water quality is abnormal, automatic SMS or email alarm will be sent, and the fault log will be recorded for quick troubleshooting.
Automatically prompt replacement of vulnerable parts (such as peristaltic pump tubes and sampling bottles) based on running time or sampling frequency, reducing maintenance costs.