【 Keywords: portable, multifunctional, constant temperature refrigeration, car power supply, 12 bottles, excessive sample retention, flow meter function 】

1、 Instrument Description
DS-8000D portable water quality proportional samplerCompliant with the Chinese Ministry of Environmental Protection's HJ/T 372-2007 "Technical Requirements and Testing Methods for Water Quality Automatic Samplers", it is a multifunctional environmental monitoring instrument that integrates flow measurement, water sample collection, automatic bottle separation, and constant temperature refrigeration. It has the characteristics of small size, easy mobility, simple operation, and environmental protection and energy saving. Suitable for environmental monitoring stations, supervisory agencies, research institutes, water affairs, municipal and sewage treatment plants at all levels, automatic sampling of water samples from industrial pollution source discharge outlets, rivers, lakes, seas, etc.

IIDS-8000D portable water quality proportional samplercharacteristic
1. Humanized program design, large screen Chinese display, rich and friendly human-machine dialogue interface, easy and fast operation;
2. By using an input type liquid level sensor or ultrasonic sensor, flow measurement and liquid level measurement can be achieved, completing proportional, timed quantitative, constant flow quantitative, liquid level proportional and quantitative sampling;
3. Multiple sampling functions: timed quantitative sampling, fixed flow quantitative sampling, flow ratio sampling, liquid level ratio sampling, real-time quantitative sampling, etc;
4. Multiple sampling program startup methods: external signal triggered startup, over limit sample retention startup, preset time startup, instant startup, liquid level over limit triggered startup, etc., to meet user needs;
5. Multiple external interface methods, including RS232, 4-20mA, switch signal, etc., facilitate connection with other online devices;
6. Built in flowmeter function, suitable for flow measurement of industrial pollution source discharge outlets of various types of weirs such as triangular weirs, rectangular weirs, equal width weirs, and Bacher troughs;
7. It has a refrigeration function, which can keep samples at a constant temperature and set the temperature; The refrigeration system has a vehicle mounted power interface, which is convenient for field applications;
8. It has access control function, with two-level password locking for parameters to prevent illegal operations;
9. Rich data query function, large capacity data storage function, convenient for users to conduct statistical analysis;
10. High reliability peristaltic pump, hybrid stepper motor subdivision drive, smooth and reliable operation, easy to disassemble pump head, liquid and pipeline contact without pollution, high temperature resistance, and corrosion resistance;
11. Modular program structure, multi CPU control circuit, programmable control, optoelectronic isolation, improve the overall performance of the product;
12. Liquid flow detector, automatically completes the cleaning and emptying of the sampling port and pipeline to ensure the collection of qualified water samples;
13. Control the bottle splitting device to automatically package samples, with accurate and reliable automatic positioning for packaging. The bottle splitting method can be set to complete single or mixed collection;
14. It has an automatic drainage function to meet various water quality conditions and has a pre rinsing function for pipelines;

IIIindex
Ø Sampling program: 10 sampling programs can be pre programmed and started with one click;
Sampling methods: timed quantitative sampling, fixed flow quantitative sampling, equal flow rate ratio, equal liquid level ratio, instant quantitative sampling, etc;
Ø Sampling records: can save 10000 sampling records;
Ø Information recording: It can store at least 2000 information records, including system power-off and power on, parameter modification, equipment failure, and other information;
Traffic query: hourly, daily, monthly, and annual traffic records for 2 years;
Sampling program startup methods: external signal triggered startup, over limit sample retention startup, preset time startup, instant startup, liquid level over limit triggered startup, etc;
Ø Communication signal interface: RS232 signal, RS485 signal, 4-20mA signal, switch signal;
Display mode: 240 * 128 LCD Chinese LCD display;
Sampling method: peristaltic pump suction type;
Sampling speed: adjustable from 300ml to 1200ml per minute;
Sampling interval: adjustable from 1 minute to 9999 minutes;
Sampling volume: adjustable from 5ml to 9999ml;
Sampling error: ≤ ±5％；
Ø Proportional sampling error: ≤ ±10％；
Vertical suction stroke: ≤ 8 meters;
Horizontal suction range: ≤ 50 meters;
Ø Liquid sensor: Penetrating refractive liquid sensor;
Ø Sample bottle capacity: ＜ 1000ml；
Ø Number of sample bottles: 12 bottles:
Ø Bottle splitting method: single bottle single sample, single bottle diverse, multiple bottles single sample;
Internal clock: real-time clock, with a monthly cumulative error of less than 10 seconds;
Sampling failure retry times: 3 times;
Pre rinsing frequency of sampling pipeline: 0-3 times can be set;
Refrigeration method: compressor refrigeration
Ø Sample room temperature setting: adjustable from 20 ℃ to -20 ℃
Ø Power supply: AC220V、 Built in DC+12V lithium battery (for sampling system);
Car power interface: 12V, 45W (for constant temperature refrigeration system);
Ø Whole machine weight: about 15Kg;
Ø Dimensions: 570mm * 360mm * 500mm;