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1, high and low temperature alternating box, that is, only high temperature and low temperature test without humidity test, directly called "high and low temperature test chamber". Also called "high and low temperature alternating test chamber";
2, constant temperature and humidity box, need to take both high temperature and low temperature test, at the same time can do humidity test, can be cycled, we call "high and low temperature wet heat alternating test box", "constant temperature and humidity box", etc.; constant temperature constant The wet box can be used as a “wet heat alternating testâ€, but depending on the alternating test conditions made by the customer, if the user wants to purchase the equipment, the supplier should be informed of your test requirements before purchasing the equipment so that the equipment can follow your Design and debug are required.
High and low temperature test chamber: At present, domestic products can be used at temperatures ranging from -70 °C to 150 °C, and imported products (such as CSZ) can be used at temperatures ranging from -73 °C to 190 °C.
Constant temperature and humidity box: Domestically, the temperature is 15 °C ~ 85 °C, and the humidity can be 20%~98% RH. Of course, lower humidity can be made according to requirements. We call it low temperature and low humidity test chamber.
High and low temperature wet heat alternating test chamber: the general temperature will be -20 degrees or lower, and the humidity can be done (only 15 to 85 degrees). The wet-heat alternation test is mainly: during a certain period of time, the temperature remains constant and the humidity is tested according to the rate of change you set, or vice versa. There are also tests that require temperature and humidity to vary simultaneously at a set rate. The general constant temperature and humidity test is to control the humidity after the temperature arrives first (in a word: alternating means controlling temperature and humidity at the same time).
The APAP20 is a device which is designed for noninvasive ventilation,that provides patients more safety and comfort. Designed for a more natural breathing experience.
How to compare the purchase of constant temperature and humidity chamber and high and low temperature alternating test chamber
When users purchase constant temperature and humidity chambers and high and low temperature alternating test chambers, they are often misled by various product information on the network. The fundamental reason lies in the market competition incentives. In order to better promote products, manufacturers often try to find ways to promote products. Label the various test chamber names and common names on the network to optimize the promotion of various products. What do you mean by the “high and low temperature alternating box†and “constant temperature and humidity box†that you need to know when purchasing.
Understand literally:
Of course, according to the conditions of the user, the manufacturer price is different. For the parameter indicators of the product: