The WZ11 water quality automatic sampler is an environmental monitoring instrument launched by Grasp for online automatic sampling of pollution sources, surface water stations and shore micro stations. It uses a special peristaltic pump for sewage to draw water, with a large pipe diameter and fast flow rate, which can effectively prevent pipeline blockage. Under the control of a 32-bit high-performance industrial-grade ARM controller. The sampling method, sampling time interval, sampling volume and storage location can be set arbitrarily according to the user's needs. After being equipped with a flow sensor, it can achieve dual functions of sewage measurement and sampling in proportion to the flow rate. Connecting with online monitoring instruments can achieve sample retention when the standard exceeds the limit. It can also achieve remote wireless control and randomly issue sampling instructions as needed. So as to obtain the most genuine and effective water samples. It is one of the essential instruments for environmental protection monitoring departments to enhance work efficiency, reduce labor burden, and ensure the accuracy and validity of monitoring data.
This water quality automatic sampler is used in the automatic water quality monitoring station along the shore. It can be integrated with a small unmanned full water quality automatic monitoring cabinet and be controlled by the central control system to achieve external control sampling, synchronous sampling and over-limit sampling.
1. Product features：
Six 500ml sampling bottles;
Self-lubricating distribution system and self-locking positioning type;
Color LCD screen, simple and clear operation;
Compact in size, automatic refrigeration, easy to install, and customizable in size;
Self-developed, modular design, highly integrated, low failure rate, and simple and convenient maintenance and repair.
An optional smart cloud management platform is available.
2. Technical indicators
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Project |
Indicator |
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Sampling method |
Standard sampling: Sampling delay time: (1 to 9999 minutes) can be set arbitrarily, with an increment of 1 minute; Sampling interval time: (1 to 9999 minutes) can be set arbitrarily, with an increment of 1 minute; Sampling volume: (5-500 mL) can be set arbitrarily, with an increment of 1 ml; Mixed sampling: Sampling delay time: (1 to 9999 minutes) can be set arbitrarily, with an increment of 1 minute; Sampling interval time: (1 to 9999 minutes) can be set arbitrarily, with an increment of 1 minute; Sampling volume: (5-500 mL) can be set arbitrarily, with an increment of 1 ml; Number of mixed samples: (1 to 10) Parallel sampling: Sampling delay time: (1 to 9999 minutes) Arbitrarily set, with an increment of 1 minute; Sampling interval time: (1 to 9999 minutes) can be set arbitrarily, with an increment of 1 minute; Sampling volume: (5-500 mL) can be set arbitrarily, with an increment of 1 ml; Number of parallel samples: (1 to 6) Flow trigger sampling: Sampling is controlled by a dedicated flowmeter. An ultrasonic liquid level sensor is required for selection. It can be set freely for 1 to 9999 cubic meters of water, with an increment of 1 cubic meter. Pulse-triggered sampling: 1 to 9999 pulses can be set arbitrarily, with an increment of 1 pulse. The received pulse is a passive pulse with a closing time greater than 1 second. |
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Characteristics of the sampling pump |
Sampling flow rate: 3700 mL/min; Pump pipe inner diameter: 10 mm; Pump tube material: High-strength medical silicone tube; Pump assembly material: The pump body is made of reinforced engineering plastic, and the quick-disassembly and assembly modules are combined. The motor shaft and pump pipe roller bracket are made of stainless steel. Sampling volume error: ±5% Sampling repeatability accuracy: ±5 mL Vertical head: 8 meters Horizontal suction lift: 50 m Air tightness of the pipeline system: ≤-0.085MPa; |
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Software functions |
Operation interface: Large 2.8TFT color LCD screen, all Chinese menus, human-computer dialogue mode, and Chinese prompts when human intervention is needed. Bottle division sampling: The instrument can achieve bottle division sampling from 1 to 6 bottles, with the number of bottles freely set. The distribution system is self-lubricating and self-locking in position. It adopts a direct water injection type to avoid cross-contamination of water samples caused by the flow diversion of the flow guide plate. Pipeline rinsing: The pipeline is rinsed by the "blow - suction - blow" method to prevent cross-contamination of samples. Software password lock: It can protect the programs set inside the instrument from being modified. Sampling program preset: 10 commonly used working programs can be preset and stored according to sampling requirements, and can be directly called up later. External pump control: The sampling distance can be extended by controlling the external submersible pump or self-priming pump. Sampling record: Sampling time, sampling status, sampling bottle number. It can store 5,000 items. Flow records: time, instantaneous flow, cumulative flow. It can store 6,000 items (an ultrasonic liquid level sensor is required as an option). |
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Other parameters |
Water storage containers: 6 pieces, 500ml; System clock time control error: △1≤0.05% and △12≤3 seconds; Mean Time between Failures (MTBF) : ≥1440 hours per time; Insulation resistance: >20MΩ Water sample storage temperature: According to the normal temperature of the environment where the product is located, the temperature can be adjusted to be 5°C lower than that of the environment where the sampler is located. Communication interface: 1 RS232/RS485 digital interface (default RS232); Analog input 1 channel 4~20mA, 12-bit resolution; Switch input 1 passive channel; Switch output 1 active channel, 15VDC/200mA; |
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Conditions of use |
Power supply: AC 220V±10%, 50Hz±1%; Rated power: 100W Operating environment temperature: -5℃ to +50℃; Working environment humidity: 5-85%RH Weight: 15kg Overall dimensions: 254×525×457mm (width × depth × height); |
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Optional |
1. It can be optionally equipped with a smart cloud management platform to achieve remote cloud platform control. (Sampling can be remotely set from any computer or mobile phone with Internet access.) 2. Ultrasonic level sensor (achieving flowmeter function); |