Calibration steps for sand dust chamber

The sand dust chamber is a device that uses artificial simulation systems to simulate the impact of natural dust environment, wind and sand, and to test various electronic devices. Before use, calibration is necessary to ensure the accuracy and credibility of the test results.

The sand dust chamber generally has two protection levels and can be used for testing various electronic and electrical products with IP5x and IP6x levels.

IP5x refers to the inability to completely prevent dust infiltration during product testing, but the invading dust must not affect the normal operation of the equipment; IP6x refers to the fact that the tested shell must be completely dust tight and no dust should enter the interior of the product.

The calibration of the sand dust chamber mainly includes dust reduction, temperature deviation, temperature fluctuation, and sand and dust detection calibration.

1. Dust reduction refers to the calibration of the dust reduction system in the equipment. During the calibration process, standard instruments need to be used to test the equipment, and the system in the equipment needs to be adjusted by comparing the test results.

2. Temperature deviation refers to calibrating the thermometer and temperature sensor in the equipment to accurately and controllably output the set temperature. In general, this calibration requires multiple repeatability tests, statistical analysis of test results, and adjustment of control parameters in the equipment to determine the optimal calibration plan.

3. Sand and dust detection calibration refers to calibrating the sand and dust detection system in the equipment to accurately detect the sand and dust content in the equipment. The calibration of sand and dust detection requires the use of standard sand and dust samples to test the test chamber, and the measurement of sand and dust content through precision instruments to compare the calibration results.

How long does the sand and dust test chamber vacuum?
1. If the extraction speed is less than 40 times the volume of the measured shell, then the extraction is carried out to 80 or 8 hours of the measured shell volume. One condition is that it does not exceed 2KPA.
2. If the pumping speed is 40-60 times per hour, the pumping time is 2 hours. If the measured shell capacity is 10L, it is 60L per minute and 6L per minute.
The sand dust chamber is a powder circulation pump in a closed test chamber that can be replaced by other methods that can suspend talc powder.

The procurement plan for sand and dust test chambers should consider the following issues:
1. We need to consider the performance indicators of the equipment. For the sand dust chamber, the main performance indicators include: filtration efficiency, air volume, noise, temperature range, etc. We need to select a sand dust chamber with good performance based on the specific requirements of the experiment.

2. We need to consider the brand and quality of the equipment. In the market, there are many brands of sand dust chambers, and the quality is also uneven. Therefore, it is normal to compare products with three different suppliers, and choose trustworthy brands and suppliers with good after-sales service. LISUN has always been focused on producing IP dust and waterproof testing equipment, with a technical team and after-sales service.

3. We also need to consider the selection of sand dust chambers not only considering the performance and quality of the equipment itself, but also considering the balance between experimental cost and effectiveness. Therefore, it is necessary to fully consider the costs required for long-term equipment use and maintenance, and choose based on actual needs and budget.

SC-015 Dust-proof Test Chamber (Sand Dust Chamber) is applied to physical and other related performance tests for electronic and electrical products, lamps, electrical cabinets, electrical components, automobiles, motorcycles and their parts and other products under simulated dust climate conditions. After the measurement, it is judged whether the performance of the product meets the requirements through verification, so as to facilitate the design, improvement, verification and factory inspection of the product. Comply meets IEC60529:1989 +A1:1999 +A2: 2013 <Degrees of protection provided by enclosures (IP Code)>,IEC60598-1,  GB2423.37-89 (Test L: dust test methods), GB4208, GB/T 4942.2-93(protective casing grade of low-voltage apparatus), GB7000.1 <Luminaires Part 1: General Requirements and Tests> 9.2.1, 9.2.2 and Figure 6, DIN40050 and IP5K0. The dust test chamber is applicable to the IP5X and IP6X dustproof test of the products.

Dustproof Testing Machine SC-015

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