Portable Equal Proportion Water Sampler

Instrument Description:

The instrument complies with HJ/T 372-2007 “Water Quality Automatic Sampler Technical Requirements and Test Methods” of China Ministry of Environmental Protection, and is a multifunctional environmental monitoring instrument integrating flow measurement, water sample collection, automatic bottle dispensing, and constant temperature refrigeration with features of small size, easy to move, simple operation, environmental protection and energy saving. It is suitable for all levels of environmental monitoring stations, monitoring organizations, scientific research institutes, water, municipal and sewage treatment plants to automatically sample water samples from industrial pollutant discharges, rivers, lakes and seas.

Functional features:

1. humanized program design, large screen Chinese display, rich and friendly man-machine dialogue interface, easy and fast operation;
2. optional input liquid level sensor or ultrasonic sensor, can realize flow measurement and liquid level measurement, complete the timed proportional, fixed-flow quantitative and liquid level proportional sampling. 3. multiple sampling functions: parallel sampling, timed quantitative sampling, fixed-flow quantitative sampling, liquid level proportional sampling;
3. multiple sampling functions: parallel sampling, timed quantitative sampling, fixed-flow quantitative sampling, timed proportional sampling, liquid level proportional sampling, instant quantitative sampling, etc. 4. multiple sampling program start-up modes
4. a variety of sampling program start-up modes: external signal trigger start-up (current signal trigger start-up, switch signal trigger start-up, serial port trigger start-up), timing start-up, start-up by date, immediate start-up, etc. 5. a variety of external interface modes, including the following
5. a variety of external interfaces, including RS232, RS485, 4-20mA, switching signals, etc., which is convenient to connect with other online devices. 6. built-in flowmeter function, suitable for the online equipment;
6. built-in flowmeter function, suitable for flow measurement of industrial pollution source discharge port of triangular weir, rectangular weir, equal width weir, Bashir tank and other types of weir. 7. with refrigerating function, can be used to measure the flow rate of industrial pollution source discharge port;
7. with refrigeration function, constant temperature refrigeration samples, temperature can be set; refrigeration system with vehicle power supply interface, convenient for field application. 8. with access control function, parameterization, and the use of the system can be set;
8 with access control function, parameter two-level password lock to prevent illegal operation. 9 with automatic recording function of door opening and closing;
9. with automatic recording function of the switch, can be queried each time the sample chamber is opened and closed time; 10. rich data query function, large-capacity data storage function, convenient for users to analyze statistics;
11. Highly reliable peristaltic pump, hybrid stepper motor subdivided drive, smooth and reliable operation, easy to disassemble the pump head, liquid contact with the pipeline pollution-free, high temperature and corrosion resistance;
12. Modular program structure, multi-CPU control circuit, programmable control, optoelectronic isolation, improve the overall performance of the product;
13. Liquid flow detector, automatically complete the sampling port and pipeline cleaning, emptying, to ensure that the collection of qualified water samples; 14. Control of the bottle device to automatically dispense samples, dispensing automatic positioning is accurate and reliable, can be set up in the bottle, to complete a single collection or mixed collection;
15. It has automatic emptying function to meet all kinds of water quality conditions, and has the function of pipeline pre-rinse.

Technical indicators:
 Sampling program: 10 kinds of sampling programs can be pre-programmed, one-key start;
 Sampling methods: parallel sampling, timed quantitative sampling, fixed-flow quantitative sampling, timed proportional sampling, liquid level proportional sampling, instant quantitative sampling, etc;
 Sampling records: 10000 sampling records can be saved;
 Information records: at least 2000 information records can be saved, including system power off and on, parameter modification, equipment failure and other information;
 Flow query: 2 years of hourly, daily, monthly and yearly flow records;
 Sampling program startup: external signal trigger (current signal trigger startup, switch signal trigger startup, serial port trigger startup) startup, preset time startup, preset date startup, immediate startup and so on;
 Communication signal interface: RS232 signal, RS485 signal, 4-20mA signal, switch signal;
 Display: 240 * 128 LCD screen Chinese interface;

 Sampling mode: peristaltic pump inhalation;
 Sampling speed: 250mL~800mL per minute adjustable;
 Sampling interval: 1 minute to 9999 minutes adjustable;
 Sampling volume: 5mL~9999mL adjustable;
 Sampling volume error: ≤ ±5%;
 Equal proportion sampling error: ≤ ± 10%;
 Parallel sampling distance: ≥100 meters;
  Vertical sampling range: ≥8 meters;
 Sample bottle capacity: ≤1000mL;
 Number of sample bottles: 12 bottles;
 Split bottle mode: single bottle single sample, single bottle multiple samples, multiple bottles single sample, parallel samples;
 Internal clock: real-time clock;
 Sampling failure retry times: 3 times;
 Sampling pipeline pre-rinse times: 0~3 times can be set;
 Refrigeration mode: compressor refrigeration;
 Sample room temperature setting: 20℃ ~-20℃ can be set;
 Power supply: AC220V±15% / 50Hz, built-in DC16.8V lithium battery (for sampling system);
 On-board power supply interface: 12V, 45W (for constant temperature refrigeration system);
 Ambient temperature: (5~40) ℃;
 Weight of the whole machine: 23Kg;
 Overall dimensions: 640mm × 430mm × 560mm.

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