Introduction
A liquid particle counter is an instrument specifically designed to measure the number and size distribution of particles suspended in liquids, and it is used for contamination monitoring and quality control in pharmaceutical, semiconductor, chemical, and water treatment industries. Liquid particle counters operate on principles such as light obscuration, in which particles passing through a light beam block some of the light, and the reduction in light intensity is related to the particle size and counted electronically; light scattering, in which particles scatter light that is detected at various angles; and the electrical sensing zone method, in which particles passing through an aperture change the electrical resistance, and the size and number of particles are determined, and the choice of method depends on the particle size range, the liquid, and the application. Liquid particle counters are used in the pharmaceutical industry for monitoring particulate contamination in injectable solutions, for verifying the cleanliness of drugs and medical devices, and for compliance with pharmacopeial standards; in the semiconductor and electronics industry for monitoring the purity of ultrapure water and chemicals; in the power industry for monitoring turbine oils and coolants; in the chemical industry for process control; and in environmental monitoring for water quality analysis, and they are available as laboratory instruments for sample analysis and as online monitors for continuous process monitoring. Features include high sensitivity, multiple size channels, and automated sampling. With their importance in liquid contamination control, liquid particle counters are essential for ensuring product quality and process reliability.
Liquid Particle Counter LLPC-T2021
Liquid Particle Counter is used for detecting the size and quantity of solid particles in liquids by the principle of the light blocking method. It can measure the pollution levels and i...
Liquid Particle Counter LLPC-T2030
Liquid Particle Counter features a particle size detection range from 1 to 500. It can accurately detect up to 10,000 particles per ml, with an accuracy rate of ±10%. The magnetic stirr...
Liquid Particle Counter LLPC-T2020
Liquid Particle Counter analyzes a vast spectrum of particle sizes from 0.8μm to 600μm in a single, efficient test. The counter gives a complete contamination analysis report instantly...
Liquid Particle Counter LLPC-T2010
comes with high precision syringe sampling and semiconductor laser sensor. Designed using photoresist method principle, it detects size and number of solid particles in a liquid sample. ...
Standards
ISO 13320:2020-Particle size analysis-Laser diffraction methods
Complies with the above standards, but is not limited to them.
Features
1. Liquid particle counter for measuring particles in liquids including water and chemicals.
2. Optical or electrical sensing for particle concentration and size distribution in fluids.
3. Suitable for pharmaceutical water, hydraulic fluids, chemicals, drinking water and industrial use.
4. Multiple size channels with high sensitivity for sub-visible particle detection.
5. Includes sensor, sample handling, display, data processing and operation manual.
FAQ
Q1: What testing scenarios is this counter mainly applied to?
A: The liquid particle counter is used in pharmaceutical water testing, hydraulic fluid analysis, chemical manufacturing, drinking water quality, semiconductor process chemicals, power plant chemistry and industrial quality control to measure the concentration and size distribution of particles suspended in liquids. It supports pharmaceutical purified water and WFI (water for injection) testing per pharmacopoeial requirements, hydraulic and lubricating oil cleanliness assessment (ISO 4406, NAS 1638), chemical product particle contamination testing, drinking water quality analysis, semiconductor ultrapure chemical monitoring, and industrial process fluid quality control. The liquid particle counter provides sensitive detection of sub-visible particles that affect product quality, equipment wear and process performance. It is essential for pharmaceutical, hydraulic, chemical, semiconductor and industrial laboratories requiring liquid particle measurement for regulatory compliance, equipment protection, product quality, process control and research, where particle contamination in liquids affects pharmaceutical product safety, hydraulic system reliability, chemical product quality, semiconductor manufacturing yield and industrial process performance, requiring accurate, sensitive particle counting in aqueous and non-aqueous fluids.
Q2: What standards does the counter comply with?
A: The liquid particle counter follows ISO 11171 for hydraulic fluid particle counting, ISO 4406 for fluid cleanliness, USP 788 and 789 for particulate matter in injections, relevant GB/T standards, and applicable pharmacopoeial methods. Calibration should use certified particle size standards traceable to international standards (NIST or equivalent). The instrument complies with relevant safety standards.
Q3: What is the warranty period for the whole machine and key components?
A: The whole liquid particle counter is covered by a 12-month warranty. The sensor, pump, electronics and display are covered, while tubing, filters and calibration standards are consumables or accessories. Damage from improper sample introduction, corrosive fluids beyond rating or unauthorized repair is excluded. Extended service contracts are available.
Q4: Is this device difficult to operate? Is professional training required?
A: Operation requires trained analysts familiar with liquid particle counting, sample handling and data interpretation. We provide operation manuals, training and application support. Proper sample preparation, degassing, flow control, calibration and result interpretation are important for accurate particle measurement, particularly for regulated pharmaceutical testing.
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: Calibration with certified particle size standards recommended every 6-12 months per ISO 11171 or applicable standards. Routine verification with a control sample before critical measurements. Sensor condition and flow rate checked periodically. Sample path cleaning per usage. Full system performance verification annually for accredited laboratories.
Q7: Are supporting consumables universal?
A: Tubing, filters, calibration standards and sample containers are available from specialized suppliers, though instrument-specific parts should be verified. Long-term consumable and calibration cost is moderate depending on sample volume.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes sensor type (light obscuration, light scattering), size range, flow rate, sample handling, solvent compatibility and software features. Additional accessories can be ordered separately. Custom orders extend delivery lead-time.
Q9: Does the purchase include on-site installation and commissioning service?
A: Standard delivery includes the liquid particle counter and accessories with an operation manual. On-site installation, calibration and training are not included for standard orders but can be arranged for laboratory setup. Remote guidance is provided.
Q10: What types of samples are compatible with this equipment?
A: The liquid particle counter measures particles in aqueous and non-aqueous liquids within the sensor compatibility, viscosity range and particle concentration specification. Highly viscous samples may require dilution or special handling. Corrosive solvents require verification of sensor material compatibility. Samples should be properly degassed to prevent bubble interference. Users should select appropriate sensor type and size range for the application, use certified calibration standards, degas samples properly, avoid sample contamination during handling, clean the sample path between samples, follow applicable standard methods (USP, ISO), and report results with complete sample information and test conditions. For pharmaceutical water testing, procedures should follow pharmacopoeial requirements including sample volume and size thresholds.
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