Tianjin high and low temperature test chamber high and low temperature test equipment meets the conditions

　　【High and low temperature test chamber】Official website: http://www.shlhx.com/

　　Beautiful structure,

　　high And determine the parameters and performance of electrical, electronic and other products and materials after high temperature, low temperature, or constant temperature environment changes.

　　Touch button, automatic warning, precise temperature control

　　Imported digital display touch button PID microcomputer SSR temperature controller (RKC origin: Japan), temperature control adopts PID + SSR system co-channel coordinated control, with automatic calculation function, can change temperature conditions Immediate correction to make temperature control more precise and stable.

　　Platinum resistance temperature and humidity

　　sensor Temperature sensor

　　PT100 platinum resistance temperature measuring body

　　Heat balance temperature and humidity regulation

　　Temperature and humidity control adopts PID + SSR system co-channel coordinated control It

　　has the function of automatic calculation, which can immediately correct the temperature and humidity changing conditions, so that the temperature and humidity The control is more precise and stable.

　　Top configuration. Eco-environmental protection. Green science

　　In order to ensure the cooling rate and minimum temperature requirements of the test chamber, the refrigeration system of this test chamber adopts a cascade refrigeration system composed of imported compressors. The refrigeration system has reasonable matching and high reliability. , easy to use and maintain, etc.

　　Specifications and dimensions of the high and low temperature box: (Note: the following models are named after -40 degrees)

　　Volume (unit: L) Studio size (D*W*H)mm Dimensions (D*W*H)mm

　　LRHS-101B-L 450×450×500 1200×1000×1650

　　LRHS-225B-L 500×600×750 1300×1150×1900

　　LRHS-504B-L 700×800×900 1450×1400

　　×

　　2100 1000×1000×1000 1850×1600×2250

　　high and low temperature box reference standard:

　　GB/T 2423.1-2008 Environmental test of electrical and electronic products Part 2: Test method test A: Low temperature

　　GB/T 2423.2-2008 Environmental test of electrical and electronic products No. 2 Part: Test method Test B: High temperature

　　and other corresponding national standards or design and manufacture according to the technical parameters proposed by the user unit.

　　1. Technical indicators of high and low temperature box:

　　1. Temperature range: -40℃～150℃

　　2. Temperature uniformity: ±2℃ (no-load)

　　3. Temperature fluctuation: ±0.5℃ (no-load)

　　4. Temperature rise Rate: 1.0～3.0℃/min

　　5. Cooling rate: 0.7～1.0℃/min

　　2. Box structure of high and low temperature box:

　　2. Box structure

　　1. The inner tank is imported (SUS304) high-quality stainless steel plate;

　　2. Thermal insulation material : Rigid polyurethane foam + glass fiber;

　　3. With non-reaction door handle, the operation is easier;

　　4. The bottom of the machine adopts high-quality fixable PU movable wheel;



　　5. The outer tank is made of high-quality (t= 1.2mm 　　) A3 steel plate CNC machine tool, and the surface of the shell is sprayed to make it more smooth and beautiful; Wing impeller to achieve strong convection and vertical diffusion circulation;

　　7. Double-layer high-temperature-resistant high-tensile sealing strips are used between the door and the box to ensure the airtightness of the test area;

　　8. The observation window is made of multi-layer hollow tempered glass, and the inner Glued sheet conductive film (the test process can be clearly observed);

　　9. Optional test hole: installed on the left side of the machine with a diameter of 50mm, used for external test power lines or signal lines. (Aperture and number of holes need to be specified before ordering).

　　3. Equipment use conditions

　　1. Ambient temperature: 5℃～+28℃ (average temperature within 24 hours ≤28℃)

　　2. Ambient humidity: ≤85%R?H

　　3. Power requirements: AC380V±10% 50±0.5Hz Three-phase five-

　　wire 　　system

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