Introduction: DR-803K water quality automatic sampler is a sampler specially designed and produced for mixed sample supply and over-standard retention of water pollution source online monitoring system. The sampler is widely used in pollution sources, the import and export of sewage treatment plants, and is used online with online monitors such as COD, ammonia nitrogen, total phosphorus, total nitrogen, and heavy metals. It is designed with a flow tracking sampling mode, which can automatically adjust the sampling flow according to the instantaneous flow, realize continuous sampling, and ensure that the collected water samples are more representative. It has the function of mixing samples in A and B tanks, which can provide uninterrupted mixed water samples to the online monitor. The water quality automatic sampler can provide uninterrupted mixed water samples to the online monitor, and realize the collection of mixed water samples, mixing and temporary storage of mixed water samples, excess sample retention and alarm, refrigerated samples, automatic cleaning and emptying of mixing tanks , protect samples and other functions, meet the requirements of HJ353-2019, HJ354-2019, HJ355-2019, HJ356-2019 and other national environmental protection standards, and are supporting equipment for the overall solution of the online monitoring system for water pollution sources. Features: 1. Sampling function: It can realize various sampling trigger methods such as timing sampling, time proportional, flow proportional, flow tracking, external control sampling and remote start; 2. Sample retention function: It can realize the functions of over-standard sample retention, synchronous sample retention, direct sample retention, and serial port control sample retention; 3. Sample supply function: It can provide uninterrupted mixed water samples to multiple online monitors such as COD, ammonia nitrogen and heavy metals at the same time; 4. Manual comparison sampling port: with manual sampling port, it can realize the manual comparison function of mixed water samples; 5. Record: It can record the bottle number of the reserved sample, the reserved sample time, the reserved sample amount, the sampling mode, the reserved sample mode, the number of reserved samples, the parallel sample number, the COD value, the NH3-N value, and the total phosphorus value. and total nitrogen value, 10,000 data records can be recorded; 6. Power-off protection: automatic power-off protection, parameters will not be lost after power-off, and the instrument can automatically return to the original working state after power-on; 7. Digital temperature control: digital temperature control of the refrigerator, with the addition of a soaking system, the temperature is uniform and accurate; 8. Automatic rinsing: before each sampling, rinse the pipeline and sampling bucket with the water sample to be tested to ensure the representativeness of the reserved sample; Technical parameter: Sampling bottle: 1000ml×25 bottles Sampling interval: 1min～9999min can be set Single sampling volume: 10ml～1000ml Sampling records: 10000 Open and close records: 2000 Power outage records: 2000 Retention sample size error: ±7% Equal-proportional sampling error: ±8% System clock time control error: Δ1≤0.1% Δ12≤30s Water sample storage temperature: 2℃～6℃ (±1.5℃) Sampling vertical height: ≥8m Horizontal sampling distance: ≥80m Air tightness of piping system: ≤-0.085MPa Mean failure-free continuous running time (MTBF): ≥1440 h/time Insulation resistance: ＞20 MΩ Communication interface: RS-232/RS-485 Analog interface: 4mA～20mA Digital input interface: switch Instrument interface: Chinese interface, color LCD touch screen Average power: 75W
Introduction: DR-803K water quality automatic sampler is a sampler specially designed and produced for mixed sample supply and over-standard retention of water pollution source online monitoring system. The sampler is widely used in pollution sources, the import and export of sewage treatment plants, and is used online with online monitors such as COD, ammonia nitrogen, total phosphorus, total nitrogen, and heavy metals. It is designed with a flow tracking sampling mode, which can automatically adjust the sampling flow according to the instantaneous flow, realize continuous sampling, and ensure that the collected water samples are more representative. It has the function of mixing samples in A and B tanks, which can provide uninterrupted mixed water samples to the online monitor. The water quality automatic sampler can provide uninterrupted mixed water samples to the online monitor, and realize the collection of mixed water samples, mixing and temporary storage of mixed water samples, excess sample retention and alarm, refrigerated samples, automatic cleaning and emptying of mixing tanks , protect samples and other functions, meet the requirements of HJ353-2019, HJ354-2019, HJ355-2019, HJ356-2019 and other national environmental protection standards, and are supporting equipment for the overall solution of the online monitoring system for water pollution sources.
