The DR-803K Water Quality Automatic Sampler is a sampling device specifically designed and manufactured by Derun Houtian for online monitoring systems of water pollution sources, catering to mixed sampling and retention of excessive samples. It is widely used at pollution sources and wastewater treatment plant entry and exit points, and is connected for use with online monitors for COD, ammonia nitrogen, total phosphorus, total nitrogen, heavy metals, etc. It features a flow tracking sampling mode, which can automatically adjust the sampling flow rate based on instantaneous flow, enabling continuous sampling and ensuring that the collected water samples are more representative. It has modes A and B.Bucket mixing function, capable of feeding to online monitorProvide continuous mixed water samples.

The water quality automatic sampler provides a continuous mixed water sample to the online monitor, enabling the collection of mixed water samples, mixing, temporary storage of mixed samples, retention of samples exceeding the standard, and alarm.Storage of samples, automatic cleaning and emptying of mixing tanks, and sample protection features, compliant with HJ353-2019, HJ354-2019, HJ355-2019, HJ356-2019Country's environmentalThe protection standard requirements make it an ideal配套device for the overall solution of water pollution source online monitoring system.

Sampling Function: Offers various triggering methods for sampling, including timed sampling, proportional to time, proportional to flow, flow tracking, external control sampling, and remote start.

Sample Retention Feature: Offers over-specification sample retention, simultaneous sample retention, direct sample retention, and serial port control sample retention functions.

Sample Supply Function: Capable of supplying samples simultaneously toCOD, ammonia-nitrogen, heavy metals, and multiple online monitoring instruments provide continuous mixed water samples.

Manual sampling port: Equipped with a manual sampling port, capable of performing manual comparison of mixed water samples.

Record: Sample bottle number, sample time, sample quantity, sampling mode, sample mode, number of samplings, parallel sample number for each time of retention sample.COD value, NH3-N value, total phosphorus value, and total nitrogen value; capable of recording up to 10,000 new data records.

Power Failure Protection: Automatic protection against power failure; parameters will not be lost after power failure, and the instrument can automatically resume its original working state upon power-up.

Digital Temperature Control: Refrigerator with precise digital temperature control and even heat distribution system, ensuring uniform and accurate temperature.

Automatic Rinse: Rinse the pipeline and sampling bucket with the water sample to be tested before each sampling to ensure the representativeness of the retained sample.

Automated Mixing Drum Emptying: The mixing drum features a quick automated emptying function.

External pump control: Directly control the external pump to extend the sampling distance.

Pipe optimization: Sample collection pipeline with rigid materialPVC materials, ensuring the effectiveness and timeliness of water sample collection