Climatic Test Chamber RT-301

Climatic Test Chamber RT-301

Drop Hammer Impact Tester RT-707

Programmable Constant Temperature and Humidity Test Chamber

RT-309 Desktop xenon weathering testing chamber

QUV Aging Test Chamber RT-308

RT-308 QUV Accelerate Aging Tester

Desktop Xenon Test Chamber RT-309

Thermal Shock Cycle Test Chamber

How to choose Constant temperature and humidity test chamber structure and volume?

Constant temperature and humidity test chamber overall structure: the cooling system in the lower part of the box, the control system in the upper part of the constant temperature and humidity test chamber. The test room at one end of the air flue interlayer, the distribution of heaters, refrigeration evaporator, fan and other devices. On the left of Constant temperature and humidity test chamber has Ф50 cable hole, the door is a single door stainless steel embedded door handle. Adopt double-resistant high-temperature anti-aging silicone rubber seal, can effectively guarantee the loss of temperature in the chamber.

Constant temperature and humidity test chamber door with observation window, anti-frost device ,can switch control of lights. The observation window adopts multi-layer hollow tempered glass, and the inside bonding film conductive film heats defrost. Lighting is imported Philips lamp, you can effectively observe all aspects of the work room of the test sample changes.

The volume of the constant temperature and humidity test chamber: when put the test product into the test chamber for testing, in order to ensure that the atmosphere around the product to be tested to meet the test requirements of the environmental conditions, climate chamber work space size and the size of the tested product size Should follow the following provisions:

1.The volume (W × D × H) of the tested product shall not exceed (20-35) (20 is recommended) for the effective working space of the test chamber. It is recommended to use no more than 30 for products that are heating in the test.

2. The ratio of the wind-breaking area of the tested product to the total working area of the test chamber on the section is not more than 35-50. (35 is recommended).

3. The surface of the tested product should be kept at least 100-150mm away from the wall of the chamber(150mm is recommended).

How to remove dust and maintenance constant temperature and humidity test chamber effectively?

Constant temperature and humidity test chamber in the electronics industry, defense technology, chemical industry, machinery manufacturing, aerospace and other fields have been widely used, Dongguan Right Testing Machine Co.,Ltd production of constant temperature and humidity test chamber using a unique triple seal system to ensure accurate and uniform and stable temperature and humidity values. Highly flexible water source. Meet a variety of standards. Easy to operate, safe and reliable. Access to the vast number of users of praise.


Then how to maintenance and cleaning RIGHT constant temperature and humidity test chamber in the daily work?


1.Constant temperature and humidity test chamber (Simulate environmental test chamber) inside and outside the cleaning and maintenance 1) Before the operation should clean and remove impurities in constant temperature and humidity chamber internal room . 2) The distribution room a year cleaning more than one time at least, when cleaning ,can use a vacuum cleaner clean indoor dust is enough . 3) The outside of the box must be cleaned more than one time per year, when cleaning with soap and water can be wiped.

2.Constant temperature and humidity testing chamber humidifier inspection and maintenance. Water in the humidifier should be replaced once a month to ensure clean water, humidified water dish should be cleaned once a month to ensure smooth water flow.

3.Constant temperature and humidity box condenser dust removal. Clean the condenser should be regularly monthly maintenance, using the vacuum cleaners remove dust attached on condenser heating net or use high-pressure air spray dust.

4.Constant temperature and humidity test machine wet bulb test cloth replacement, When the test cloth surface is not clean or hardened, or done after the temperature control, continue to do temperature and humidity control must be replaced cloth before the test. Replace the test cloth about 3 months ,when replacement,should use cleaning cloth clean thermometer (sensor), replace the new test cloth should be cleaned.

5.Check the constant temperature and humidity test equipment wet bulb water level and adjust the water cup level can not be too high, so that the water overflow tube or too low the wet bulb test cloth absorbent is not normal, affect the accuracy of the wet ball, water level is about 60% of cup is enough. The water cup level adjustment, can adjust the water cup height.

In summary, only the correct cleaning and maintenance, to make the RIGHT constant temperature and humidity test chamber to play its best performance and maximum function.

Constant temperature and humidity test chamber

simulate environmental test chamber

Thermal shock impact testing chamber working principle

Thermal shock impact testing chamber is a simulation of high temperature and low temperature impact of environmental testing equipment, the test equipment used to test the material structure or composite materials, in an instant conversion can withstand very high temperature or very low temperature test,that can be detected in a short time,if test sample will thermal expansion and contraction lead to   chemical or physical damage. But with a good test equipment, you do not know how it works, that a pity. Here, we take a look at what is the working principle of thermal shock impact testing chamber?

Three boxes thermal shock impact testing chamber working principle:Test products are placed in test box,it adopt upper,middle and lower box structure,the upper box is high temperature box,the middle box is test box,the lower box is low temperature box.The upper high temperature box and lower low temperature box are able to set the test temperature and extreme temperature condition .When use low temperature chamber test,the low temperature door be opened with test chamber to test working space,and process low temperature test.Switch to the high temperature test,the door of low temperature box door is closed ,the high temperature box and test box to be a new test working space,the mechanical action of switch can be completed in less than 1s,and the temperature can be fast stable.During the whole test processing,the sample is not moved at all and no need operator intervention.

Two boxes thermal shock impact test chamber working principle:the test products are placed in the basket,the motor driver basket movement to complete the high and low temperature switching temperature transformation,the test samples are moving with the basket.Two box type equivalent put sample into the high temperature zone and low temperature zone.So,with the real three box thermal shock impact test chamber is not same and get the “thermal impact” result will not be same.

RT-310A Thermal shock impact testing chamber(3 boxes)

RT-310B Thermal shock impact testing chamber(2 boxes)

What items can replace the constant temperature and humidity test chamber wet ball gauze?

Constant temperature and humidity test chamber suitable for electronic, electrical, communications, instrumentation, vehicles, plastic products, metal, food, chemical, building materials, medical, aerospace and other products for quality testing purposes. Wet ball gauze as constant temperature and humidity test chamber important sensing components, is essential, then, what items can replace the constant temperature and humidity test chamber wet ball gauze ?

Wet ball gauze (wet bulb) have certain requirements, you can use advanced wet tissue instead it, but not any gauze can be substituted, because the relative humidity reading is based on the difference between temperature and humidity, strictly speaking also related with the local Atmosphere Pressure, wind speed.

Wet bulb temperature indication value is related with inhalation of water and the surface evaporation . These are directly closely related with the quality of gauze, so the weather provides that the wet ball gauze must be flax woven into a special "wet ball gauze." Otherwise it is difficult to ensure constant temperature and humidity test chamber wet bulb thermometer showed the correctness of the value, that is, the correctness of humidity. In addition, the placement of wet ball gauze is also clearly defined, gauze length: 100mm, tightly wrapped sensor probe, the probe from the humidity cup 25-30mm, gauze immersed in the cup, so as to ensure the correctness of control equipment and humidity accuracy.

How to choose water-cooled xenon lamp or air-cooled xenon lamp test chamber?

Xenon lamp test chamber is widely used to test materials and products of light stability and anti-aging, because the xenon arc lamp is very close to the complete spectrum including ultraviolet (UV), visible light and infrared (IR) solar spectrum. In order to obtain accurate and reproducible test results, all photostability or aging performance tests must control the quality of the light. Changes in light intensity will affect the rate of material damage. Changes in the energy distribution of the surface spectrum will affect the degradation of the material speed and type.

In 1918,appeared the world's first rotating drum xenon lamp aging test chamber, which uses a carbon arc lamp as a light source, light source or lamp placed vertically in the instrument center, surrounded by a filter system. The test specimen was mounted facing the light source and rotated like a conveyer belt around the center lamp. Since the first World War, this chamber has also been improved, but the basic design principle has not changed. The most common test chamber lamp cooling system using water cooling, this type of test chamber is called "water-cooled xenon arc chamber."

In recent years, the emergence of a new type of static sample placement xenon lamp chamber, in the top of the test room installed one or more air-cooled xenon lamp. In this system, the filter is flat and placed in the lower part of the lamp tube with a reflector system on the top and side of the chamber to enhance the uniformity of the irradiance. The test sample is mounted on a sample tray underneath the lamp vessel. The tray is slightly tilted at a small angle to allow water flow, and this type of chamber is called "air-cooled xenon arc chamber".

Regardless of the type of chamber, there are control systems that control the intensity of light "irradiance", temperature and relative humidity, except for the way the lamp cools and the sample area. The water-cooled xenon arc test chamber sampler area is the fixture, The sample area of the air-cooled xenon arc test chamber is pallet-like and is suitable for any regular and irregular sample items.

Paint, paint, rubber, plastic, adhesives, fabrics and other industrial sample can be sliced to do the test, suitable for selection of water-cooled xenon arc test chamber. Automotive, cosmetics, universities, research and other units of the shape of the test items are not fixed, suitable for air-cooled xenon arc test chamber.

What products need to do UV fluorescent lamp aging test?

Dongguan Right Testing Machine Co.,Ltd produces UV aging test chamber for non-metallic materials, organic materials (such as: coating, painting, dyes, fabrics, printing and packaging, adhesives, automotive, motorcycle industry, cosmetics, metal , Electronics, electroplating, rubber, plastics and their products), under the test of the sun, humidity, temperature, condensation and other climatic conditions changes ,test products and materials' degree of aging phenomenon . In a short period of time to get discoloration, fade and so on.

Natural sunlight and moisture damage to the material, resulting in difficult to estimate economic losses each year, UV accelerated weathering test machine can reproduce the sun, rain and dew caused by damage. The test is performed by exposing the material to be tested in a controlled alternating cycle of sunlight and moisture while increasing the temperature. The device uses ultraviolet fluorescent lamps to simulate the sun, but also by condensation or spray the way to simulate the impact of moisture.

In just a few days or weeks, the device can reproduce the damage that takes place outdoors in months or years. Damage caused by the main fade, discoloration, brightness, powder, cracking, fuzzy, brittle, strength and oxidation. The test data provided by the equipment can be of great help in selecting new materials, improving existing materials or assessing changes in the composition of the product's durability. Equipment can be an excellent predictor of changes that products will experience outdoors.

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