Humidity Test Chamber
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Humidity Test Chamber

Why constant temperature and humidity test chamber can not use tap water test?

Why constant temperature and humidity test chamber can not use tap water test?Constant temperature and humidity chamber as the name suggests is used for constant temperature and humidity testing, testing products in a constant temperature and humidity environment performance. The two core systems of the test chamber are the temperature system and the humidity system. Temperature system, high temperature using electric heating, low temperature using compressor refrigeration. Humidity system LINPIN with shallow water dish humidification, it has a fast humidification, stability, easy to clean and other advantages.Constant temperature and humidity chamber is also required for water, requiring resistivity ≥ 500Ω.m or impurity content ≤ 20ppm of pure water. Meet the standard water with pure water, distilled water, deionized water, in general, we use to reach the standard reference to pure water can be. It should be noted that mineral water or tap water is not allowed, because mineral water and tap water contain minerals and other impurities.So why should the constant temperature and humidity test chamber be tested with tap water? If the tap water can be used for experimental purposes, but the impurities in the water for a long time will be attached to the water tank, soft water pipes, shallow water tray and laboratory wall formation scale, shallow water tray and laboratory wall is also relatively clean, but clean water pipes and water tanks Very troublesome.Therefore, the constant temperature and humidity chamber and other humidity system equipment, water selection is best to meet the specifications of the water quality, otherwise it will give follow-up use and cleaning and maintenance inconvenience.

How does Humidity Chambers Work?

How does Humidity Chambers Work? Humidity chamber is a vital testing instrument for analysing the prolong effect of humidity on components to fix its quality parameters. This instrument is not subjected to only one industry applications. It is used in pharmaceuticals, plastic and rubber industries for quality assurance testing. Why are Humidity Chambers used? Temperature and humidity testing help to determine the behavior of the components in severe test conditions and environments that involve fluctuating environment, high temperature, and different relative humidity. The tests can be done with constant temperature and humidity in a static state and can be done in a dynamic state where the moisture is used to induce a failure of the components or materials.“Is it imaginable to produce the accurate level of humidity without the temperature control?” We usually find people asking such kind of questions. Controlling the humidity of the chambers with accuracy and repeatability is quite difficult without controlling the temperature of the machines. If the user wants a dry or humid environment, skipping the temperature controller can affect the accuracy of relative humidity.The higher the temperature of the chamber, it means that the air is capable of handling more moisture at a given temperature. The relative humidity is the ratio of the amount of moisture in the air with respect to the moisture it can hold. It means that relative humidity changes with the change in temperature. Hence, a stable temperature helps to ensure a stable level of relative humidity. Methods of Humidity GenerationThere are numerous methods that are used to create moisture for controlling the level of humidity in test chambers. Let’s discuss the methods of humidity generation in detail.  Method 1: “Steam Generator” Steam generators are the tank type machines that are duly equipped with immersion heaters. As the water inside the chamber gets heated, steam is generated inside the tank and rises up to the top of the chamber where cooling coils and heaters actually lies. These chambers work on the output of the heaters and demands of relative humidity. Some of the benefits of steam generators are:Easily generate High Volume of Moisture in Big ChambersThe quality of Water Vapour is Consistent. Method 2: “Atomizer” Atomizers comprises of a fine spray nozzle to atomize the water. This is done in the mixing assembly. As the atomized water passes through the chamber heater, it instantly gets heated. Atomizers are widely used in chambers to create a high level of humidity and offer numerous benefits as well. Some of the benefits of atomizers are mentioned below:Very simple and easy to used systemCapable enough in generating high volume of moistureNo issues with heater burn-outbest to save electricityCools the air. It is beneficial whenever required. Method3: “Water bath” Water Bath systems for humidity generation also works as steam generators but not in the form of enclosed box. A small water bath is fitted in the mixing assembly where heaters and cooling coils are fitted. As the air is drawn in the mixing assembly, it passes through the bath and pick up the vapor. Some of the advantages of using a water bath in chambers includes:Responsive due to small amount of waterDoesn’t require boiling procedure to provide moistureLess boiling means less mineral is deposit inside the chamber and requires less maintenanceCan be cleaned and inspected quickly. Humidity Chamber – For Determining the Effect of Humidity on ProductsConditioning Chambers are the ideal testing chambers that are incorporated with latest technology features to create different relative humidity and temperature inside the chamber. These chambers ensure less heat loss ratio as they are designed with high quality of insulation with imported glass wool. Chambers comprises of cooling compressors as well as heaters to maintain an appropriate amount of temperature and humidity. The humidity chambers are utilized to judge the effect of different weather conditions on the physical, chemical and mechanical properties of the products during the real time working on the product. Application of Humidity ChambersHumidity Chambers are utilized in large number of industries to assure the quality of different products and applications such as:Pharmaceutical Industries – To test the effect of highly humid environment on medicines and drugs.Rubber Industries – To determine the crack initiation or melting of rubbers in the hot and cold environment.Plastic Industries – To measure the effect on the mechanical and physical properties of plastic products in a humid environment and high temperatures.Presto Stantest, one of the famous manufacturer in the world of testing instruments, offer high-quality of Humidity Chambers with a different temperature setting option and relative humidity to access the effect of different weather conditions on products. The instruments are designed as per the standards ASTM D1776 / D1776M – 15 and BS 950 Part 1 (D 65) which ensures the accuracy and reliability of test results.