-70 ℃~+150 ℃ high and low temperature test chamber

A high and low temperature test chamber is a testing equipment that simulates extremely high or low temperature climate environments, and places materials and products at a set temperature to test their heat resistance, cold resistance, dry resistance, moisture resistance, and other properties. Widely used for adaptability testing of electrical and electronic products, as well as their components and other materials during transportation and use in high and low temperature environments. Used for product design, improvement, identification, and inspection, it is an indispensable equipment for material development, physical property testing, quality control, and incoming inspection.

Machine model: ST1000A-70

Temperature range: -70 ℃~150 ℃

Humidity range: 20% RH to 98% RH

Temperature and humidity deviation: ± 2 ℃; ≤± 3% RH (relative humidity ≥ 75% RH)/≤± 5% RH (relative humidity ＜ 75% RH)

Temperature fluctuation: ± 0.5 ℃

Temperature uniformity: ≤ 2 ℃

Temperature resolution: 0.1 ℃

Inner box size: Test area: W1000 * D1000 * H1000mm. Attention: The capacity for placing actual products should not exceed 2/3 of the capacity of the testing area

Outer box size: W1440 * D1550 * H1820mm (excluding protruding parts such as door lock hinges)

Equipment installation space: at least W2000 * D2000 * H2300mm

Power supply: AC380V ± 10% 50Hz ± 10%

A. Test subject

1. Box structure:

Internal material: SUS304

Insulation material: 100mm polyurethane insulation material

2. Air conditioning channel:

(1) Circulating air duct: 2 sets

(2) Heater: 2 sets

(3) Evaporator: 1 set

3. Control panel:

(1) Temperature control display screen

(2) Overtemperature protection setting device

(3) Emergency stop switch

4. Mechanical room:

(1) Refrigeration unit

(2) Fan

(3) Distribution control cabinet

① Cooling fan

② Distribution board

③ RS-485 physical interface

④ Main power leakage circuit breaker

B. Refrigeration system:

1. Working mode: water-cooled cascade refrigeration unit

2. Compressor: Rotary low-temperature compressor

3. Condenser: air-cooled heat exchanger, with Freon flowing through the shell side and water flowing through the tube side

4. Throttle device: Thermal expansion valve

5. Evaporator: finned heat exchange type

6. Refrigerant: Refrigerant R404A

C. Air circulation system

1. Heater: Nickel chromium alloy electric heating wire heater

2. Evaporator

D. Humidification system:

1. Humidifier: using stainless steel humidification boiler

2. Water level switch controls humidification signal

E. Electrical control system:

1. Temperature controller: TEMI580. Please refer to the attachment for details