Programmable constant temperature and humidity chamber, high and low temperature chamber

Programmable constant temperature and humidity chamberProduct Features:

（1） Box structure:

1Inner box material:pickuseSUS304#stainless steelThe board has the advantages of acid resistance, corrosion resistance, and easy cleaning.

2outsideBox material:Cold rolled steel plate paint treatment.

3Door handle:Adopting non reactive and explosion-proof door handles,Easy to operate、safe and reliable

4thermal insulation systemUsing ultra-fine glass fiber to fill the insulation area, non-metallic high and low temperature resistant materials are used at the connection between the inner and outer boxes, effectively reducing temperature conduction; The sealing of the box door is made of refined silicone rubber, so that there is no aging or hardening phenomenon under high and low temperature conditions, and the sealing performance is more reliable; The humidification method adopts isolated humidification.

5Mobile and positioning devices:High quality fixable installation at the bottom of the machinePU activity wheels can easily move the machine to a designated position and then fix the casters.

6sample holder: AdoptingSUS304 # stainless steel punched and bent into a mesh shape, easy to use, adjustable spacing between material racks, standard configuration of two pieces, samples according to load-bearing capacity ≥25Kg evenly distributed.

7Test hole:openA test hole with a diameter of 50mm, accompanied by corresponding insulation and heat insulation accessories, as well as a dedicated sealing soft plug

8observation window：Adopting double-layer vacuumreinforcementGlass, inner laminated conductive film heating defrosting，Clearly observe the experimental process.

（2） TheFreezing system:

1coldFreezing unit procurementusepressshrinkage machine，useDuPontEnvironmentally friendly refrigerant（R404a）Adopting a binary low-temperature circuit system design, it facilitates the use of different compressors for power in different temperature ranges to increase equipment capacity.

2Temperature and humidity control adoptsP. The I.D+S.S.R system coordinates and controls the same channel, with automatic calculation function, which can immediately correct the temperature and humidity change conditions, making temperature and humidity control more accurate and stable.

3High precision controllers are used for both temperature and humidity, with precise display settings for relative temperature and humidity performance, and a resolution of up to0.1℃

（3） Heating and humidification system:

1Heating adoptsNickel chromium alloy heating wire；

2High temperature independent system;

3The humidity is achieved by using stainless steel tubes with nickel chromium alloy high-speed heating wires and high-temperature magnesium oxide powder, which have fast reaction time and long service life.

4The heating and humidification systems are independent, and there is an automatic water replenishment device for humidity.

（5） Control system:

1adoptprecisionLCD display programmable temperature controller;

2. Intelligent digital PID microcomputer temperature control instrument;

3. Touch sensitive setting, digital and direct display, humidity directly displays percentage, temperature sensor uses PT100 platinum resistance tester.

4. The temperature control adopts the thermal balance temperature adjustment method.

5. UseprecisionThe LCD display programmable temperature controller can be used for program testing, with multiple sets and segments of programming operations, optional settings for fixed values and programs, and the ability to set time arbitrarily.

6. The main electrical components of the equipment, such as circuit breakers and AC contactors, are all made of“Chint”Brand, other electrical accessories adopt domestic brands.

7Convenient data processing：Can connect to a printer or232 communication interface, with USB data transfer interface (USB flash drive), displayed on a computer and printed temperature, humidity, and time curves, providing strong guarantee for data storage and playback during the experimental process.

（6） Theprotection system：

Overall equipment overheating, fan overheating protection, overall equipment under phase/Reverse phase, refrigeration system overload, refrigeration unit overpressure, overall equipment timing, other protections such as leakage, operation indication, automatic shutdown after fault alarm, etc.

Programmable constant temperature and humidity chamberTest standard:

1TheGB2423.1-2008/IEC6008-2-1-2007

2TheGB/T 2423.2-2008

3TheGJB150.3A－2009

4TheGJB150.4A－2009

5TheGB2423.22-2008

6TheGBT 2424.5-2006

7TheGB/T 10589-2008

8TheGB/T2423.3-2008(IEC68-2-3)

Programmable constant temperature and humidity chamberMain technical parameters: