-40℃-150℃ GB/T2423.2 Programmable High Temperature Chamber B-T-225(A~E)

-40℃-150℃ GB/T2423.2 Programmable High Temperature Chamber B-T-225(A~E)

Programmable High Temperature Chamber is used to test the material characteristic for wire type, skin type, plastic, rubber, cloth, Equiped with a special ventilation regulator for maintain the fresh air inside when heating. This testing machine design with sophisticated air-displacement adjustment device and a digital voltage meter, current meter, watt-hours, the timer can be used to measure the air replacement rate. Horizontal circulatory air supply system and both sides of airflow regulator to ensure the internal temperature uniformity and stability.

Programmable High Temperature Chamber is made in accordance with the light of new chemicals Pharmaceutical stability testing guidelines and humid test chamber technical conditions. The equipment may prepare a long and stable operating temperature and humidity environment by pharmaceutical scientific method for evaluation of drug failure require. It is used for companies to test drugs and calibration and stability tests for new drugs. Pharmaceutical stability chambers to meet the accelerated test, the test of long-term and high-humidity test, international organizations to identify new ICH stability testing conditions are also among the above range. Users can also press the unit Drug stability test chamber to arrange work requirements.

product feature:

The constant temperature and humidity test chamber is composed of two parts: temperature regulation (heating, cooling) and humidification. Through the rotating fan installed in the top of the box, the air is discharged into the box to achieve gas circulation and balance the temperature and humidity inside the box. The data collected by the built-in temperature and humidity sensor of the box is transmitted to the temperature and humidity controller (micro information processor) for editing and processing, and the temperature and humidity control instructions are issued. Through the air heating unit, condensing pipe and the tank heating and evaporation unit.

Constant temperature and humidity box temperature regulation is through the box built-in temperature sensor, data collection, temperature controller (micro information processor) adjustment, connected to the air heating unit to increase the temperature or adjust the refrigeration solenoid valve to reduce the temperature in the box, in order to achieve the required temperature control. Constant temperature and humidity box humidity regulation is through the body set humidity sensor, data collection, humidity controller (micro information processor) adjustment, connected to the tank heating element, through the evaporation of water in the tank to increase the humidity in the box or adjust the refrigeration solenoid valve to achieve dehumidification, in order to control the required humidity.

Constant temperature and humidity box with multiple protection measures; The temperature system is equipped with an overtemperature protector under the condition that the maximum safe permissible temperature can be set. The air heating element can automatically power off when the rotating fan stops. The humidifying system can stop the power supply when the water level of the humidifying tank decreases. The refrigeration system also stops working as the temperature of the box rises (more than 40℃) or the humidity increases.

operation:

Through three interconnected systems: refrigerant circulation system, air circulation system, electrical automatic control system.

1. Refrigerant circulation system of constant temperature and humidity test chamber: The liquid refrigerant in the evaporator absorbs the heat of the air (the air is cooled and dehumidified) and begins to evaporate. Finally, a certain temperature difference is formed between the refrigerant and the air. The liquid refrigerant also completely evaporates into the gas phase, and is then inhaled and compressed by the compressor (pressure and temperature increase). After being throttled through the expansion valve (or capillary), low temperature and low pressure refrigerant enters the evaporator to complete the refrigerant circulation process.

2. Air ring system of constant temperature and humidity test chamber: the fan is responsible for inhaling the air from the return air outlet, and the air is sent to the space required by the user through the air supply outlet after passing through the evaporator (cooling and dehumidification), humidifier and electric heater (heating). The sent air mixes with the air in the space and returns to the return air outlet.

3.  constant temperature and humidity test chamber electrical automatic control system:

Including power supply part and automatic control part.

The power supply part is divided into temperature, humidity control and fault protection for compressor, fan, electric heater and humidifier through contactor. Temperature and humidity control is to compare the temperature and humidity of the return air with the temperature and humidity set by the user through the temperature and humidity controller, and automatically run the compressor (cooling and dehumidifying) and humidifier. Electric heating (temperature) and other components, to achieve constant temperature and humidity automatic control.

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