Customized -70 degree constant temperature and humidity test chamber

Customized -70 degree constant temperature and humidity test chamberYou can adjust the detailed technical parameters according to the actual product testing requirements:

1、 Performance indicators:

1. Temperature range: -70 ℃~+150 ℃

2. Humidity range: 20% RH~98% RH (when the temperature is in the range of+25 ℃~+85 ℃)

3. Temperature fluctuation: ± 0.5 ℃

4. Temperature uniformity: ± 2 ℃ (tested under no-load conditions, in test chambers with a volume of less than 1000L)

5. Humidity fluctuation: ± 2% RH (within the range of relative humidity 20% RH~98% RH)

6. Humidity uniformity: ± 3% RH (tested under no-load conditions within the relative humidity range of 20% RH to 98% RH)

7. Heating rate: ≥ 3 ℃/min (average rate throughout the process, faster heating rate can be customized according to needs)

8. Cooling rate: ≥ 1 ℃/min (average rate throughout the entire process, customizable for faster cooling, such as 5 ℃/min, 10 ℃/min, etc.)

9. Time setting range: 1min~9999h59min

IICustomized -70 degree constant temperature and humidity test chamberBox structure:

1. Inner container size (length x width x height): can be customized according to actual needs, common sizes such as 500 x 500 x 600mm, 800 x 800 x 1000mm, etc

2. Outer box size (length x width x height): determined based on the inner box size and box structure, it is generally larger than the inner box size by a certain value to accommodate components such as insulation layer, refrigeration system, heating system, etc

3. Material: The inner liner is made of SUS304 stainless steel plate, and the outer box is made of high-quality cold-rolled steel plate with spray coating treatment

4. Insulation material: High density polyurethane foam and glass fiber cotton are used to ensure good insulation performance and reduce heat loss

3、 Control, cooling, heating, humidification system:

1. Refrigeration system: Adopting a binary cascade refrigeration method, equipped with imported compressors such as Bitzer from Germany and Taikang from France, ensuring stable operation in a low-temperature environment of -70 ℃

2. Heating system: using nickel chromium alloy electric heating wire, the heating power is configured according to the volume and performance requirements of the test chamber, and it has the characteristics of fast heating and precise temperature control

3. Humidification system: stainless steel armored humidification tubes are used, and the humidification amount can be adjusted according to the volume and humidity requirements of the test chamber to ensure humidity uniformity and stability

4. Dehumidification system: By utilizing the condensation dehumidification principle of the refrigeration system and combining it with an intelligent control system, precise humidity control is achieved

5. Control system: Imported programmable logic controllers (PLCs) such as Mitsubishi from Japan and Siemens from Germany are used, paired with 7-inch or larger color touch screens. The user-friendly interface enables precise control of temperature and humidity, program editing, data recording, fault alarms, and other functions