Temperature Humidity Chamber TU340
Temperature &Humidity Chamber TU340, also known as the constant temperature and humidity test machine, is used to test the performance of materials in a variety of environments, such as testing materials’ heat resistance, cold resistance, dry resistance, and moisture resistance performance. Suitable for electronics, electrical appliances, cell phones, communications, instruments, vehicles, plastic products, metal, food, chemical, building materials, medical, aerospace, and other products to test the quality of use.
TESTEX Temperature &Humidity Chamber TU340 provides constant high and low temperature and humidity, high and low temperature, and humidity alternating test environment; Temperature &Humidity Chamber TU340 is composed of the refrigeration system, heating system, humidification/dehumidification/ water system, wind system, control system, system safety protection devices and other components.
The features of Temperature Humidity Chamber TU340
Equipped with an intelligent control software system
The automatic combination of refrigeration, heating, humidification, and other sub-system functions,
thus ensuring high-precision control in the entire temperature and humidity range.
Can realize fixed value test and program test
Fixed value test: Test according to the Pre-set temperature, humidity, and time.
Program test: The change of temperature and humidity will be programmed to carry out the high and low-temperature tests.
Multiple protection, More secure in use
Such as studio over-temperature protection, heater and humidifier short-circuit protection, fan overload protection,
compressor over-pressure protection and overload protection, water shortage and water cut-off protection, power leakage protection, etc.
Quality-selected components from many countries
Such as a controller from Korea, a compressor from France, and an expansion valve from Denmark, which realizes
the strong combination makes the environmental chamber have more excellent performance and longer service life.
A variety of options to customize the chamber volume. Such as 80L, 150L, 225L, 408L, 800L, 1000L.
Specifications of Temperature Humidity Chamber
|Capacity:||80L, 150L, 225L, 408L, 800L, 1000L|
|System:||PLC system, programmable|
|Temperature Range:||-20°C ~ 150°C (-40°C, -70°C are available)|
|Time Display:||0-99999 h|
|Testing Area:||≥3000 m㎡|
|Out chamber:||Paint steel chamber|
|Inner chamber:||SUS304 Stainless Steel|
|Power:||380 V 50/60 Hz|
|Weight:||650 Kg - 1000 L|
|Dimensions:||1550 x 1450 x 1920mm (L x W x H) - 1000L|
All standards have specified test environment requirements, which include certain temperature or humidity conditions.
More details of Temperature Humidity Chamber TU340
1. The control system of the environmental chamber TU340.
Temperature measurement: Pt100 platinum resistance.
Humidity measurement: Pt100 platinum resistance dry and wet ball method.
Control device: programmable temperature and humidity controller TEMI880.It can display the set parameters, time,
heater, humidifier, and another work status while having the test automatic operation and PID parameters set function.
Screen display: can be set temperature and humidity; measured temperature and humidity; heating, humidification, time,
temperature and humidity curve and other work status and various alarm instructions.
Setting accuracy: temperature: 0.1℃ humidity: 0.1%R. H
Program capacity: 100, the total number of program segments is 1000 segments and the program’s single-step
maximum time: 99 hours and 59 minutes program can be cycled, and the programs can be linked with each other.
2. The Box of the environmental chamber TU340.
Integral structure, that is, the test chamber body, refrigeration system, heating/humidification system, air conditioning system, electrical control cabinet, refrigeration unit as a whole, the refrigeration unit is located at the bottom of the chamber, the electrical control part is placed on the side of the test chamber, easy to operate.
Chamber Box: consists of heating/humidifier, refrigeration evaporator, blower motor, air leaves, and other devices.
The test Chamber work box is made of 1mm thick SUS304 stainless steel, the box shell is made of 1mm thick high-quality stainless steel, insulation materials are made of polyurethane foam, the thickness of 100mm, good insulation effect, the surface of the test chamber with no frost, no condensation. The chamber is equipped with two layers of adjustable-height stainless steel shelves; the chamber is equipped with condensate drainage ports. Single door, the door is sealed with a double-line silicone rubber seal; the door is equipped with a multi-layer hollow glass observation window and is equipped with a heating and frost prevention device. An (AC12V) 20W halogen lamp is installed on the door of the test chamber.
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Operation manual of constant temperature and humidity chamber
The constant temperature and humidity test chamber, also known as the constant temperature and humidity test machine, or programmable heat and humidity test chamber, is used to test heat resistance, cold resistance, dry resistance, and moisture resistance of materials under a variety of environments. Constant temperature and humidity test chamber simulate high and low temperature, hot and humid environment for testing the performance of instrumentation, electronics, parts, and various materials in storage, and transportation when they are in an environment with high humidity and temperature or low humidity and temperature. Meanwhile, it is reliable testing equipment for quality control engineering.
Selection principles of the constant temperature and humidity chamber
For every environmental or reliability test, there are some strict regulations on the category of environmental factors, value, and tolerance. Moreover, environmental factors which are not needed in the test should be prevented from the test for providing the exact evidence to analyze the product failure and failure mode. As a result, the test product is only allowed to be put in the specified environment instead of any other environmental stress interference.
Environmental test equipment may carry out multiple tests of the same type of product while an engineering product under test may be put into different environmental test equipment for testing. The environmental conditions created by the environmental test equipment are required to be repeatable in order to ensure the test results are comparable which are all about the same product in the same test specification under the specified environmental test conditions.
A constant temperature and humidity chamber must accurately or similarly simulate the process of the use, storage, shipping, and other aspects of engineering products. Additionally, it must satisfy the demands of the uniformity of the temperature field and the accuracy of the temperature control in accordance with defined test specifications, requirements of test value for high temperature and low temperature, and the time of test which are specified by various types of products. We can guarantee a precise reproduction of environmental conditions in the environmental test only by doing this.
Safety and reliability
The test cycle of environmental testing, especially reliability testing, is long. Sometimes, the machine will test military products with a very high value. In the test process, the testers need to carry out the operation or test around the scene. Therefore, the environmental test equipment is required to be characterized by safe and easy operation, reliable use， long working life, and so on for the normal operation of the experiment.
Measurability and controllability
The environmental conditions provided by any environmental condition must be observable and controllable, which is not only set to limit environmental parameters to a certain tolerance range, but also for the safety of the experiment in order to eliminate the unnecessary loss caused by the uncontrolled environmental condition.
Here are some regulations for the place where the constant temperature and humidity chamber is installed to facilitate the heat dissipation and maintenance of the box.
There should be 300mm between it and the nearby wall or object.
We should identify a location where the average annual temperature ranges from 15 to 35 °C and the relative humidity reach more than 85%.
There should not be a sharp change in the ambient temperature of the installation place.
It should be mounted on a smooth surface (when installing, we should confirm that it is placed horizontally by using the level).
It ought to be set up in an area with minimum dust, good ventilation, freedom from combustible or explosive items, high-temperature heat sources, or without direct sunshine.
As much as possible, it should be installed close to the power source.