Constant Temperature And Humidity Chamber
What is a Constant temperature and humidity test chamber?
Constant temperature and humidity test chamber, also known as constant temperature and humidity testing machine, constant temperature and humidity test chamber, programmable humidity test chamber, thermostat, or constant temperature and humidity box.
A constant temperature and humidity test chamber is used for testing materials in a variety of environments performance equipment and tests each It is suitable for testing the quality of electronics, electric appliances, mobile phones, telecommunications, instruments, vehicles, plastic products, metals, foodstuffs, chemicals, building materials, medical treatment, and aerospace products, etc.,
Constant temperature and humidity test chamber Test method
GB / T 5170.5-2008, GB / T10586-2006, GB / T2423.1-2008 Test A, GB / T2423.2-2008 Test B, GB / T2423.3-2006 Test Ca, GB / T2423.4- 2008 Test Db
Humidity range 30 ~ 98% RH
Temperature range -70 ℃ ~ 150 ℃; -40 ℃ ~ 150 ℃
Constant temperature and humidity chamber, also known as “programmable constant temperature and humidity chamber FR-1204 constant temperature and humidity chamber,” and “high and low temperature alternating hot and humid chamber / GDS-100” is the same series, aviation, automotive, home appliances, research.
And other fields necessary test equipment used to test and determine the electrical and electronic products and other materials and materials for high temperature, low temperature, alternating humidity, or constant temperature changes in the test parameters and performance.
Constant temperature and humidity test chamber Technical indicators
1. Temperature range: -60 ℃ ~ 150 ℃
2. Humidity range: 30 ~ 98% RH (temperature at 25 ℃ ~ 80 ℃)
3. Temperature uniformity: ≤ 2 ℃ (no load)
4. Humidity uniformity: +2, -3% RH
5. The temperature fluctuation: ± 0.5 ℃ (no load)
6. Humidity fluctuation: ± 2%
7. Temperature deviation: ± 2 ℃
8. Humidity deviation: ± 2%
9. Cooling rate: 0.7 ~ 1.0 ℃ / min
10. Heating rate: 1.0 ~ 3.0 ℃ / min
11. The time setting range: 1 ~ 9999H
12. Humidity alternating range: 40 ~ 98% RH
Constant temperature and humidity test chamber Usage
The Constant temperature and humidity test chambers are suitable for examining the resistance to the dampness of electric and electronic products, components, parts, and their materials under different temperature and humidity conditions, and can also be used as an adaptability test for storage, transportation, and use in high and low-temperature environments.
Constant temperature and humidity chamber is suitable for electronic, plastic products, electrical appliances, instruments, food, vehicles, metals, chemicals, building materials, aerospace, medical … and other products used to test the quality.
Constant temperature and humidity test chamber Usage environment
1. Allow the working environment: 0 ~ 35 ℃ Performance Guaranteed Environment: 5 ~ 25 ℃.
2. Required to install the ground level on the ground.
3. Test box around the distance 600MM.
Constant temperature and humidity test chamber main features
1. The perfect shape design: arc shape and surface spray treatment, high texture appearance, and the use of flat non-reaction handle, easy to operate, safe, and reliable.
2. The Bright, broad vision of a large observation window: the use of a three-tier vacuum coating window and Philips energy-saving fluorescent lamps, without wipers defogging, to maintain a clear observing effect, ready to observe the status of the test.
3. Humidification system pipe and control circuit separation: Humidification system pipe and power supply, controller, and circuit board separation, to avoid leakage due to pipelines affect the circuit and improve safety.
4. Advanced and reliable refrigeration and control system: imported European and American fully enclosed compressor, imported environmental refrigerant, a world-renowned brand of refrigeration devices, imported LCD touch screen controller, friendly interface, easy to learn.
Constant temperature and humidity test chamber Operation
The constant temperature and humidity test chamber is Passed by three interrelated systems: Refrigerant Circulation System, Air Circulation System, and Electrical Automation System.
First, the constant temperature and humidity chamber refrigerant circulation system: the liquid refrigerant in the evaporator absorbs the heat of the air (the air is cooled and dehumidified) and began to evaporate, the final formation of a certain temperature difference between refrigerant and air, liquid refrigerant It also evaporates completely into a gaseous state and is then sucked in by the compressor and compressed (pressure and temperature increase).
The gaseous refrigerant absorbs heat through the condenser (air/water) and condenses into a liquid. After throttling through the expansion valve (or capillary) Into a low-temperature and low-pressure refrigerant into the evaporator, complete the refrigerant cycle.
Second, the constant temperature and humidity chamber air ring system: the fan is responsible for the air from the air inlet inhalation, the air through the evaporator (cooling, dehumidification), humidifier, electric heater (heating), sends out the air and the air mixed in the space back to return air.
Third, constant temperature and humidity chamber electrical control system:
Including the power section and automatic control section:
Part of the power supply through the contractor, the compressor, fans, electric add-ons, humidifiers, and other power supply automatic control sub-part is divided into temperature and humidity control and fault protection part:
Temperature and humidity control is through the temperature and humidity controller, the return air temperature and humidity set by the user compared to the temperature and humidity, automatic operation of the compressor (cooling, dehumidification), humidifier, electric heating (heating), and other components to achieve constant temperature and humidity control.
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