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High and low temperature temperature thermal shock test chamber use precautions
**Precautions for Using High and Low Temperature Thermal Shock Test Chamber**
The high and low temperature thermal shock test chamber, also known as the FR-1219 three-zone thermal shock test machine, is a specialized device designed to simulate extreme temperature changes. It consists of three main sections: the high-temperature zone, the low-temperature zone, and the test zone. This system uses a unique heat and cold storage mechanism, combined with an air channel switching mode, to expose samples to rapid temperature shocks.
Equipped with a large Japanese-made LCD screen (320x240 dots), the control system supports both Chinese and English displays, making it user-friendly. The chamber has a large program memory capacity, allowing users to store up to 100 programs, with each cycle set for up to 9999 cycles and individual time settings of up to 9999 hours and 59 minutes. It also features an RS-232C communication interface, enabling connection to a computer for easy programming, editing, and recording. It supports ten groups of dynamic connections, including TIMER SIGNAL RELAY functions. Users can choose between 2-zone or 3-zone operation depending on their testing needs.
The system is fully automatic and highly precise, with all operations controlled by a PLC (Programmable Logic Controller). In case of failure, the chamber provides automatic fault detection and warning signals. It also includes an emergency stop feature in case of unstable power supply. The test method involves using a pneumatic damper to switch between 2-zone or 3-zone modes.
**Important Safety Precautions:**
The thermal shock test chamber should never be used for testing flammable or explosive materials. Examples include:
1. Substances with flash points above -30°C but below 0°C, such as ethane, oxidized alkene, acetone, benzene, and methyl ethyl ketone.
2. Flammable substances with flash points below -30°C, like gasoline, propylene oxide, and carbon disulfide.
3. Materials with burning points between 30°C and 65°C, such as kerosene, light oil, turpentine, isoamyl alcohol, and acetic acid.
**General Usage Tips:**
1. During operation, avoid opening the chamber door unless absolutely necessary. Opening the door during high-temperature tests may cause hot air to escape, posing a safety hazard. Similarly, frequent door opening during low-temperature tests may lead to frost buildup, affecting test accuracy. Additionally, the inside of the door can remain hot, potentially causing burns, and high-temperature air might trigger fire alarms.
2. Ensure the machine is properly grounded to prevent static electricity interference.
3. Avoid turning the refrigeration unit on and off within three minutes to prevent damage.
4. If using cooling water, always use tap water or treated soft water to maintain smooth circulation in the cooling system.
5. When placing a heated sample inside, use an external power source for control instead of directly connecting the sample’s power.
6. Never install the temperature test chamber upside down. It should be placed horizontally on the floor to ensure ease of operation and reduce mechanical noise during use.
Our company is dedicated to providing high-quality products, comprehensive solutions, and excellent technical support. We specialize in thermal shock test chambers, constant temperature and humidity test chambers, and related equipment. With a strong technical team and a commitment to quality, we continuously strive to improve and contribute to the automation industry. We welcome both new and returning customers to explore our range of products with confidence. Let us assist you in finding the right solution for your testing needs!