System Composition
● Groundwater sampler
● Portable water quality tester
● Tablet APP software
System Overview
● Groundwater sampler:
Including: groundwater sampling controller, water level drawdown meter, air pressure pipe, water outlet pipe, water surface detector, well depth meter, bracket wire reel, calibrated steel wire rope, air bag pump, stainless steel submersible pump, portable mobile power supply, and tool kit. The groundwater sampler can directly control the start/stop of the air bag pump and submersible pump and adjust the water outlet flow through a tablet APP. The APP is connected to the groundwater sampler controller via wireless WIFI. The groundwater sampler controller is connected to a water level drawdown meter to monitor the water level drawdown in millimeters in real time. The water level drawdown meter and the pump are intelligently linked. When the drawdown water level reaches the set drawdown depth (10cm), the pump automatically stops working; when the water level returns to the initial water level, the pump automatically starts the sampling process again.
● Portable water quality tester:
It can measure six parameters in real-time online: dissolved oxygen (DO), conductivity, turbidity, pH, oxidation-reduction potential (ORP), and water temperature. During the well-flushing process, the instrument can automatically determine when the well-flushing meets the standard and ends, and give a prompt.
● Tablet APP software:
It refers to the control software of the groundwater sampling system. The control software is wirelessly connected via WIFI to the groundwater sampler controller and the portable water quality tester. It can optionally use airbag pump sampling or submersible pump sampling, with adjustable flow rates, and automatically generates test records containing location, timestamp, and label information. The sampler and water quality tester are seamlessly connected, enabling real-time online monitoring of water quality parameters displayed on an APP, and automatically determining whether well flushing meets the standards.
Technical parameters of the equipment
Airbag pump:
● Groundwater controller power supply: AC220W, ≤30W (no-load);
● Airbag pump: Can be quickly disassembled without tools, and the airbag can be replaced conveniently and quickly;
● Airbag pump body diameter: not more than 45mm;
● Airbag pump body length: less than 50cm;
● Airbag pump head: not less than 70 meters (standard configuration), can reach 300m or even higher head as needed;
● Airbag pump sampling mode: bottom sampling;
● Airbag pump weight: 2kg;
● Airbag pump air supply pipe: inner diameter 4m, outer diameter 6um, PVC material;
● Airbag pump outlet pipe: inner diameter 6m, outer diameter 8m, Teflon material;
● Groundwater sampling controller: power supply: AC220V, maximum power ≤350W; exhaust volume 50L/Min; noise level: ≤60 decibels; oil content: 0 (sanitary-grade air);
● The water outlet flow rate of the airbag pump meets the sampling requirements for volatile organic compounds (VOCs) and semi-volatile organic compounds (SVOCs) specified in the "Technical Specification for Groundwater Environmental Monitoring" HJ 164 2020
Stainless steel submersible pump:
● Power supply: AC220V, maximum power ≤ 450W
● Submersible pump head: 70 meters
● Submersible pump body diameter: no more than 50mm
● Submersible pump body length: 70cm
● Submersible pump sampling mode: top sampling
● Submersible pump outlet pipe: outer diameter 8m
● Submersible pump water output: 0.1-10L/Min, adjustable
● Portable mobile power supply: 1500W, can provide 2 channels of AC220W, 1 channel of DC12V, 2 USB charging ports, and can be charged by car.
Water Level Drop Meter:
● Water level depth is 20m, powered by 12V. Record and display the water level at the start of sampling, and dynamically display the current water level in real-time, and link with the airbag pump and submersible pump. When the water level drops to the designated level, the pump will automatically stop, and automatically start when the water level rises back. The water level measurement results are in meters, recorded to two decimal places.
Water surface detector：
● tape measure length 100m
Well depth gauge:
● detection depth 100m, accuracy ≤ 6cm; resolution 1cm
Portable water quality tester:
● built-in WIFI, DC5V power supply
Storage:
● more than 100 data points
Operating temperature:
● -5~50℃
Flow cell capacity:
● 350ml
Material:
● rigid urethane
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