Portable Proportional Water Sampler

The portable proportional water quality sampler complies 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 division, and constant-temperature refrigeration. It features a compact size, portability, ease of operation, and environmental friendliness and energy efficiency. It is suitable for use by environmental monitoring stations, inspection agencies, research institutes, water utilities, municipal authorities, and wastewater treatment plants to automatically sample water from industrial pollution sources, rivers, lakes, seas, and other water bodies.

• Humanized program design, large screen Chinese display, rich and friendly human-machine dialogue interface, simple and fast operation.

• Liquid flow detector automatically completes cleaning and draining of the sampling port and piping to ensure the collection of qualified water samples.

• Equipped with submersible level sensors or ultrasonic sensors, enabling flow measurement and level measurement, and supporting proportional sampling, timed quantitative sampling, constant flow quantitative sampling, level-proportional sampling, and quantitative sampling.

• Multiple sampling program startup methods: external signal trigger startup, exceedance retention startup, preset time startup, instant startup, liquid level exceedance trigger startup, etc., to meet user requirements.

• Multiple external interface options, including RS232, 4-20mA, and switch signal interfaces, facilitate connectivity with other online devices.

• Features a refrigeration function to maintain a constant temperature for sample storage, with adjustable temperature settings; the refrigeration system includes a vehicle power interface for convenient field applications.

• Rich data query functions and large-capacity data storage capabilities facilitate user statistical analysis.

• Features an automatic drain function to accommodate various water quality conditions, along with a pipeline pre-rinse function.

• Includes an integrated flowmeter function, suitable for measuring flow rates at industrial pollution source discharge points using various weir types such as triangular weirs, rectangular weirs, constant-width weirs, and Parshall flumes.

• Highly reliable peristaltic pump with a hybrid stepper motor micro-stepping drive, ensuring smooth and reliable operation. The pump head is easy to disassemble and reassemble, with no contamination of the liquid or piping, and is resistant to high temperatures and corrosion.

• Multiple sampling functions: timed quantitative sampling, constant flow quantitative sampling, flow-proportional sampling, liquid level-proportional sampling, and instantaneous quantitative sampling.

• Controls the sample division device for automatic sample division, with accurate and reliable automatic positioning. The sample division method can be set to complete single sampling or mixed sampling.

• Modular program structure, multi-CPU control circuit, programmable control, and optical isolation enhance the product's overall performance.

• Features an automatic door opening/closing recording function, allowing users to query the time each sample chamber was opened and closed.

• Features access control functionality with two-level password locking to prevent unauthorized operations.