Water sampler

Introduction

A water sampler is an instrument used to collect water samples from a body of water for analysis, and it is used in environmental monitoring, water quality testing, oceanography, limnology, and many other fields. Water samplers are available in various types, including the grab sampler, which collects a single sample of water at a specific location and depth, such as a bottle on a pole or a bucket; the depth sampler, such as the Van Dorn or Niskin bottle, which is lowered to a specific depth and closed to collect the water at that depth; the Kemmerer sampler, which collects water at a specific depth; the integrated sampler, which collects a sample over the whole depth or a composite sample; the peristaltic pump sampler, which pumps water from a specific depth; and automatic samplers, which collect samples at programmed intervals, and the samplers are made of materials that do not contaminate the sample, and the collected samples are preserved and transported to the laboratory for analysis. Water samplers are used for collecting samples for the analysis of physical, chemical, and biological parameters, such as pH, dissolved oxygen, nutrients, metals, organic compounds, and microorganisms, for monitoring the quality of rivers, lakes, reservoirs, groundwater, and seawater, for compliance monitoring, for research, for wastewater monitoring, and for many other applications, and they are available in various configurations, from simple manual samplers to automatic systems with multiple bottles. With their collection of representative water samples, water samplers are essential for water quality monitoring and analysis.

Water Sampler LBWS-T2010

Water Sampler operates within a temperature range of 0°C to 40°C. It can collect 1 to 25 bottles with the number of bottles adjustable as needed. Its multiple sampling and sample reten...

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Standards

ISO 14698-1:2003-Cleanrooms and associated controlled environments-Biocontamination control-General principles and methods

EN 17141:2020-Cleanrooms and associated controlled environments-Biocontamination control

ISO 5667-1-Water quality-Sampling-Guidance on the design of sampling programmes and sampling techniques

Complies with the above standards, but is not limited to them.

Features

1. Water sampler for collecting representative water samples from various sources.

2. Manual or automatic sampling for surface water, groundwater, wastewater and process water.

3. Suitable for environmental, water treatment, industrial, food and research monitoring.

4. Includes sampler, sample bottles, tubing, weight/frame, controller and operation manual.

5. Supports representative water sample collection for laboratory analysis and compliance.

FAQ

Q1: What testing scenarios is this sampler mainly applied to?

A: The water sampler is used in environmental monitoring, water treatment plants, industrial facilities, food and beverage, agriculture, research and regulatory compliance to collect representative water samples from surface water (rivers, lakes, oceans), groundwater, wastewater, process water and drinking water for subsequent laboratory analysis and regulatory compliance testing. It supports environmental water quality monitoring (rivers, lakes, reservoirs), groundwater sampling from wells, wastewater effluent monitoring for discharge compliance, drinking water quality sampling, industrial process water monitoring, stormwater sampling, agricultural water quality, and research water sampling. Proper representative sampling is critical for accurate water quality analysis, as sample collection is often the largest source of error in water testing.

Q2: What standards does the sampler comply with?

A: The water sampler follows relevant ISO, ASTM and GB/T standards for water sampling, including ISO 5667 series (water quality sampling), ASTM D3370 for closed conduit sampling, ASTM D4687 for general water sampling, and relevant GB/T standards including GB/T 12997-12998 for water sampling. The hardware complies with applicable safety standards. Sample bottles should be certified for the analyte type (glass for organics, plastic for metals). Users should follow applicable standard methods for sample collection, preservation and holding times.

Q3: What is the warranty period for the whole sampler and key components?

A: The whole water sampler is covered by a 12-month warranty. The sampler body, tubing, controller (for automatic), frame and housing are covered, while sample bottles, tubing, filters and batteries are consumables or accessories. Damage from improper use, corrosion or unauthorized repair is excluded. Extended service contracts may be available for automatic samplers.

Q4: Is this device difficult to operate? Is professional training required?

A: Operation requires trained personnel familiar with water sampling methods, sample preservation and chain of custody. We provide operation manuals, training and application support. Proper sample collection technique, depth selection, sample preservation (temperature, chemical preservatives), bottle selection, labeling, documentation and chain of custody are important for representative, legally defensible samples.

Q5: What is the typical lead-time for order delivery?

A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.

Q6: Is regular calibration required? What is the recommended calibration cycle?

A: For automatic samplers: volume calibration recommended every 6-12 months. Timer and programming verification periodically. For manual samplers: routine inspection and cleaning. Sample bottle condition checked. Full sampler performance verification annually for automatic models. Tubing and seals inspected per schedule.

Q7: Are supporting consumables universal?

A: Sample bottles (glass, plastic), tubing, filters, preservatives, batteries and cleaning supplies are available from laboratory suppliers, though bottle type should match the analyte. Long-term consumable cost depends on sampling frequency and bottle usage.

Q8: Can I customize parameters or supporting accessories?

A: Customization includes sampler type (manual grab, automatic composite, discrete depth), sample capacity, bottle type, material (stainless steel, PVC), programming (time-based, flow-paced), depth capability, remote monitoring and accessories. Additional bottles, weights and accessories can be ordered separately. Custom orders extend delivery lead-time.

Q9: Does the purchase include on-site installation and commissioning service?

A: Manual samplers require no installation. Automatic samplers include on-site installation, commissioning and operator training by certified specialists for fixed installations. Site preparation guidance is provided before delivery.

Q10: What types of water are compatible with this equipment?

A: The water sampler collects samples from surface water, groundwater, wastewater, process water, drinking water and other aqueous sources within the depth, temperature and sampler material specification. Different analytes require specific sample bottles (glass for organic compounds, plastic for metals/trace elements), preservation methods (refrigeration at 4 degrees C, chemical preservation with nitric acid for metals, sulfuric acid for BOD) and holding times. Users should follow the specific standard method (ISO 5667, ASTM, GB/T) for sample collection, use appropriate bottles and preservation, collect representative samples (proper depth, avoid contamination), avoid sample aeration for dissolved oxygen/volatile compounds, label samples properly with sample ID, date, time, location and collector, maintain chain of custody for regulatory samples, store samples at proper temperature during transport, and analyze within required holding times (varies by analyte, e.g., 28 days for metals with acid preservation, 48 hours for BOD). The sampler should be cleaned between sampling sites to prevent cross-contamination (use detergent, rinse with sample water). For automatic samplers, program proper sampling times/volumes and ensure proper sample preservation (refrigerated base). For groundwater sampling, follow proper purging and sampling protocols (low-flow sampling). The sampler material should be compatible with the water type (avoid PVC for organic sampling). Waste and decontamination solutions should be disposed of per applicable regulations. For regulatory compliance sampling, follow all applicable chain of custody and documentation requirements.