Vacuum Pycnometer LVPY-T2011

Introduction

Vacuum Pycnometer is integrated with a negative pressure chamber of capacity 18L. It features a pump with a pumping rate of 1L/s that ensures efficient removal of air from the chamber. Equipped with a gauge with pressure ranging from 0 to 100kpa that maintains vacuum conditions for precise measurements. Our pycnometer is suitable for asphalt mixtures containing porous aggregates with water absorption less than 3%.

This vacuum pycnometer is designed to meet the rigorous requirements of modern laboratory operations, ensuring high precision, reliability, and ease of use for various experimental applications.

Applications

Paving Mixtures: Determining the theoretical maximum relative density of compacted or noncompacted bituminous mixtures.
Road Construction: Used for asphalt design, road investigation, and quality management to calculate air voids and compaction.
Material Characterization: Widely used in materials science and engineering for characterizing the density and porosity of solid materials.

Specifications

Capacity	18L
Chamber Dimensions(D× H)	280 × 200mm
Pumping Rate	1L/S
Pump Ultimate Vacuum	10Pa
Pump Refueling Volume	250ml
Motor Power	120W
Pressure Range	0 to 100kpa
Test Requirement	3.7Kpa (±0.3)
Vibration Mode	Continuous vibration
Vibration Motor Input Power	50W
Material	Aluminum unibody base and frame
Power Supply	220v±10% 50Hz
Dimension	440 × 440 × 520mm
Net Weight	30 Kg
Gross Weight	45 Kg

Features

Aluminum base and frame

Continuous vibration mode for sample compaction

Transparent plexiglass for visibility

Provides secure sealing

Class A certified chamber

Complies with D2041, T209/T283

FAQs

1. What are the key factors to consider when selecting this vacuum pycnometer for laboratory use?

When selecting this vacuum pycnometer, key factors include: 1) The instrument's precision and accuracy to meet experimental requirements; 2) Compatibility with the types of samples and applications you will be working with; 3) Ease of use and maintenance requirements; 4) Safety features to protect operators and samples; 5) Calibration and certification requirements; 6) Cost-effectiveness and long-term reliability; 7) Technical support and service availability from the supplier. Evaluating these factors ensures that the instrument meets your laboratory's specific needs.

2. How often should this vacuum pycnometer be calibrated to ensure accurate results?

It is recommended to calibrate this vacuum pycnometer at least once every 6-12 months under normal usage conditions. More frequent calibration (every 3-6 months) may be necessary if: 1) The instrument is used continuously for extended periods; 2) It is exposed to harsh environmental conditions (temperature fluctuations, humidity, dust); 3) It is used for critical applications requiring high precision; 4) The instrument has been moved or subjected to physical shock; 5) Calibration checks indicate significant deviations from standard values. Always follow the manufacturer's calibration guidelines.

3. What are the common maintenance procedures required for this vacuum pycnometer?

Common maintenance procedures include: 1) Regular cleaning of the instrument's exterior and sample contact surfaces to prevent contamination and ensure proper operation; 2) Inspection of moving parts (if applicable) for wear and lubrication as recommended by the manufacturer; 3) Replacement of consumable parts (filters, bulbs, reagents) according to usage guidelines; 4) Verification of performance parameters (temperature, pressure, voltage) regularly; 5) Storage of the instrument in a clean, dry environment when not in use; 6) Keeping a maintenance log to track service activities and identify potential issues early; 7) Following the manufacturer's specific maintenance schedule for optimal performance and longevity.

4. Can this vacuum pycnometer be used with different types of samples, and are there any compatibility considerations?

Yes, this vacuum pycnometer can be used with a variety of sample types, but compatibility considerations are important: 1) Check if the instrument's materials are compatible with the chemical composition of your samples (avoid corrosive or reactive substances that may damage the instrument); 2) Ensure that the sample volume and concentration are within the instrument's recommended range; 3) For biological samples, consider sterility requirements and potential cross-contamination risks; 4) For volatile or hazardous samples, ensure proper ventilation and safety precautions are in place; 5) Consult the manufacturer's documentation for specific sample compatibility guidelines, and perform compatibility tests with new sample types before regular use.

5. What should be done if the vacuum pycnometer malfunctions or produces inconsistent results?

If malfunctions or inconsistent results occur: 1) First, check the instrument's user manual for troubleshooting guidelines specific to the issue; 2) Verify that the instrument is properly calibrated and within its calibration period; 3) Inspect for obvious issues such as loose connections, damaged parts, or incorrect settings; 4) Clean the instrument thoroughly to remove any contamination that may affect results; 5) Repeat the experiment with a known standard sample to determine if the issue is with the instrument or the sample; 6) If the problem persists, discontinue use of the instrument to prevent further damage or inaccurate results; 7) Contact technical support or a qualified service technician for diagnosis and repair, providing details of the issue and any troubleshooting steps already performed.