Water Vapour Permeability Tester LWPT-T2011

Introduction

Water Vapour Permeability Tester uses an infrared method of testing and offers a measuring range of 0.005 to 40 g/(m²·24h), with an optional extension up to 100 g/(m²·24h). It is designed to test 3 samples simultaneously, allowing for independent testing within each chamber. The tester has 360° air circulation constant temperature technology to maintain a uniform temperature and humidity environment. Its built-in safety system includes anti-virus protection, and data security measures. Our tester is used in industries such as food packaging, pharmaceuticals to test plastic films, and more.

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

Applications

Our Water Vapour Permeability Tester is used in industries such as food packaging, pharmaceuticals, and electronics to measure the water vapor transmission rate of barrier materials like films, sheets, and foils. It helps ensure product quality by evaluating the moisture resistance of packaging materials, preventing contamination and degradation.

Specifications

Method	Infrared method
Measuring Range	0.005 to 40 g/ (m²•24h) (Standard area 50.2 cm2) 0.005 to 100 g/ (m²•24h) (Optional)
Resolution Ratio	0.0001 g/ (m²•day)
Repeatability	0.005 g/ (m²•day) or 2%, (whichever is greater)
Sample Quantity	3
Temperature Range	15 to 50℃
Temperature Fluctuation	± 0.05℃
Humidity Range	5 to 90% ± 1% RH (standard temperature range)

Features

Ultra-wide test range

10.1- inch touchscreen

infrared moisture sensor

Automatic testing mode

Sound and light reminders

One-click automatic access

Professional test mode

FAQs

1. What are the key factors to consider when selecting this water testing equipment for laboratory use?

When selecting this water testing equipment, 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 water testing equipment be calibrated to ensure accurate results?

It is recommended to calibrate this water testing equipment 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 water testing equipment?

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 water testing equipment be used with different types of samples, and are there any compatibility considerations?

Yes, this water testing equipment 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 water testing equipment 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.

1. What is the purpose of the Water Vapour Permeability Tester?

Water Vapour Permeability Tester is designed to measure the rate at which water vapor passes through barrier materials such as plastic films, aluminum films, sheets, and rubber sheets. This is essential for industries like food packaging, pharmaceuticals, electronics, and solar energy, where moisture protection is crucial. Using an infrared moisture sensor, the device provides precise and repeatable measurements to ensure materials meet required barrier performance standards.

2. How does the Water Vapour Permeability Tester work?

Water Vapour Permeability Tester functions by placing a test sample between two chambers, with one side exposed to a humid environment and the other side to dry nitrogen gas. Due to the humidity difference, water vapor moves through the sample and is carried by the nitrogen gas to an infrared moisture sensor. The sensor detects changes in water vapor concentration, and the device calculates the transmission rate based on the difference in moisture levels.

3. What types of materials can be tested with this Water Vapour Permeability Tester?

This Water Vapour Permeability Tester can test a variety of materials, including plastic films, co-extruded films, aluminum composite films, sheets, metal foil sheets, and rubber sheets. These materials are commonly used in food and pharmaceutical packaging, solar panel encapsulation, and electronics protection, where moisture barrier properties are critical.

4. How many samples can be tested at once?

Water Vapour Permeability Tester designed for efficiency and can simultaneously test up to three samples. It features three independent test chambers, allowing users to analyze different materials under identical or varying test conditions. This capability is especially beneficial for research laboratories and quality control departments, as it reduces testing time while maintaining high accuracy and reliability.