Product Description

Temperature and humidity test chamber

Introduction:Test material heat, cold, dry resistance, humidity resistance.Suitable for electronics, electrical appliances,Communications, instrumentation, vehicles, plastic products, metal, food, chemical, building materials, medical, aerospace and other products.

 

Temperature and humidity test chamber

Specification:

Packaging Details: Standard strong wood case for temperature and humidity test chamber

Delivery Detail: *5 working days after getting the payment

 

Dongguan XinBao-OTS Instrument Co., Ltd.

was established in ***8, now *5 years of history, is a professional production environment, class, mechanics,

package testing equipment manufacturers (constant temperature and humidity chambers, environmental chambers, thermal shock test chambers,

ast change rate chambers, yellowing resistance, aging test chamber, salt spray chamber, tensile testing machine, universal testing machine,

carton compression testing machines, bursting strength testing machine, vibration test, etc.) with the world norms: ISO , ASTM, DIN, EN,

GB, BS, JIS, ANSI, UL,CE, TAPPI, AATCC, IEC, VDE .... are used, the product widely used in: scientific research, quality inspection institutions,

universities and rubber, tires, plastic, metal, wire and cable, footwear, leather, packaging, building materials, petrochemical, aviation ... ..,

and thus promote the quality of Taiwan culture and even the Southeast Asian countries, *5 years, thousands of Xin Bao customers from every corner in the world,

one ten thousands of orders, world famous. Dongguan Xin Bao company has so far, two production bases in Dongguan andTaiwan, Suzhou, Fujian, Kunshan, Zhejiang,

with offices in unrivaled quality advantage, dynamic management team with superb manufacturing process, the development of creative thinking in the international ,

standardized, professional quality policy, Xin Bao will gradually move towards an international brand.
 

We are here to help you. Services available:

•Replacement manuals

•Consumables and replacement parts

•On-site maintenance and repair

•Warranty support

•Over-the-phone service support and advice

If you have an OTS chamber , we will do our best to help you in whatever way we can.

Manuals: PDF files of manuals for current models are available free. Please contact us to request a copy. Older and printed copies at additional charge.

•Service repair: We prefer you contact us direct at the factory with any problems you may be experiencing. We help diagnose the problem, arrange for any needed parts, and schedule a technician to do the repairs. Rarely can a local contractor get all that done for you as quickly as we can. We also guarantee the work done.

 

How do temperature humidity environmental chamber get so cold?

What are the limitations of environmental chamber in achieving LOW temperatures?

When we hear from folks searching for a test chamber for the first time, they are sometimes surprised that we can get temperatures down to **4° Fahrenheit (**0° Celsius). To help you understand the different methods of cooling a chamber and how cold they can go, take a look below:

*0°C above ambient

This lower limit is common for environmental chamber that don't have any refrigeration. Because there is heat generated by the fan recirculating the air, we cannot guarantee temperatures close to the room ambient. So even if you just want a stable "ambient" temperature, you will need refrigeration. This low temperature is usually specified for ovens.

5 to **0°C

This is about as low as we can go with a standard refrigeration using R***4A refrigerant. This is the same refrigerant that is currently used in new air conditioning systems and refrigerators. This refrigerant is not widely used in the test chamber industry due to its limited range. To learn more about refrigeration, see this webpage.

**5 to *0°C

This is the lowest range that environmental chamber can achieve with R***4A or R***7 refrigerants. The type of refrigeration system they use is called "single stage", which basically means that there is one compressor. Chambers with this range are often only used to *0 or *5°C when cycling temperatures between hot and cold. Going to lower temperatures becomes a slow process. Higher performance systems may even limit the lower temperature more strictly in order to maximize the system to meet a desired test range in a specified time.

**5 to **0 °C

Environmental chamber that can get this low use "cascade" refrigeration. By using a "high stage" refrigeration circuit to cool the "low stage" circuit, these cold temperatures can be achieved. The low stage refrigerants (R**3 or R***8) would create too much pressure (which would blow-out the piping) if they were used alone, which is why the high stage is added. The high stage ensures the low stage doesnt' reach too high a pressure by cooling it.

How humidity control works

"Is it possible to produce environmental chamber with humidity control but no temp. control?" Can you control only humidity? Not with any accuracy or repeatability. If you just want to get as dry or humid as possible, then skipping temperature control is acceptable. But you still need to measure temperature to calculate relative humidity. Relative humidity is actually relative to the temperature. The higher the temperature, the more moisture the air can hold at a given temperature. Relative humidity is the ratio of the amount of moisture in the air vs. how much it can hold. And herein lies the best reason to have temperature control: If the temperature changes, the relative humidity changes. So a stable temperature helps ensure a stable humidity level.