I. Main technical parameters

1、Model: SW/GDJS-150B

2、Studio dimensions (mm): D500×W500×H600

3、Temperature range: -40 to +150℃ (no load)

4、Temperature uniformity: ≤2℃ (no load)

5、Temperature fluctuation: ≤±0.5℃ (no load)

6、Temperature deviation: ≤±1.0℃

7、Humidity range: 20~98%RH (without active thermal load)

8、Humidity fluctuation: ±2%R.H

9、Humidity deviation: ±3%R.H

10、Humidity uniformity: ±3%R.H

11、Heating time: approximately -40℃ to 100℃ in ≤60 minutes

12、Cooling time is approximately: 20℃ to -40℃ ≤ 50 minutes

13、Loading condition: The test product should not occupy more than three-quarters of the studio space

14、Instrumentation: American SWS550 programmable high-resolution color touch screen temperature and humidity controller, supporting English and Chinese; computer PID control, SSR output operation; memory program group with 10 groups, each program group containing 16 program segments, totaling 160 segments; segment operation time up to 99 hours and 59 minutes; maximum total cycles of 999, partial cycles up to 99; real-time data storage through U-disk interface, and parameter viewing through computer.

II. Electrical control system

1、Controller model: High-definition true color "TFT" LCD touch display "SWS330"

2、Monitor: Touch screen temperature and humidity controller

3、Operation mode: fixed value/program mode

4、Setting method: Touch input through Chinese and English menus

5、Temperature: Adjust according to the equipment's temperature operating range (upper limit +5℃, lower limit -5℃)

6、Setting range: Humidity: (0~100) %RH (temperature and humidity testing equipment)

7、Display resolution

Temperature: 0.1℃

Humidity: 0.1% relative humidity

Time: 0.1min

8、Input: Thermocouple (platinum resistance/voltage/current, etc., depending on equipment requirements)

9、Control method: Anti-windup PID

BTHC balanced temperature control method (temperature and humidity testing equipment)

10、Auxiliary functions: fault alarm and cause, handling prompt function, power-off protection function, upper and lower temperature limit protection function, timing function (automatic start and automatic stop operation), self-diagnostic function.

11、Temperature and humidity measurement

Temperature: PT100 type armored thermal resistor

Humidity: PT100 type armored thermal resistance

12、Other electrical appliances are sourced from well-known brands such as Omron, Delixi, and Schneider

III. Refrigeration system

1、Compressor: Imported environmentally friendly French "Taikang" compressor

2、Refrigeration method: single-stage refrigeration

3、Refrigerant: DuPont's environmentally friendly R404a (with an ozone depletion index of 0)

4、American "Aigao" dry filter

5、Italian "Castello" solenoid valve

6、Expansion valve: Originally imported from Denmark, "Danfoss"

7、Throttling devices: thermal expansion valve, capillary tube

8、High and low pressure protection switch, "Danfoss" from Denmark

IV. Humidification system

1、Temperature measurement principle: The psychrometric principle (dry bulb temperature and wet bulb temperature) is employed. Sensors detect the measurements of the dry bulb and wet bulb, transmitting the relevant data to the instrument. The instrument calculates the humidity based on the temperature difference between the dry and wet bulbs, and automatically displays it directly on the instrument.

2、Humidification: The water level control in the humidification system utilizes an electronic liquid level controller imported from Taiwan to regulate the water pump. It is equipped with a built-in fixed water tank and a visible glass water level display.

V. Safety protection device

1、Studio overtemperature alarm protection

2、Compressor overheat protection

3、Compressor overcurrent and overload protection

4、Humidifier water shortage alarm protection, water supply abnormality

5、Quick-acting fuse

6、Fan overheat protection

7、Leakage protection (grounding protection)

8、Zero-crossing brake fluid power controller

9、Water shortage protection

10、Install an over-current protector on the fan motor

11、Grounding protection

VI. Standard configuration of the test chamber

1、Lead hole: One hole with a diameter of φ25mm, located on the side wall of the test chamber, with the position to be determined (optional)

2、Observation window: Electrically heated anti-condensation insulating glass observation window, with a 9W lamp, whose position can be customized according to user requirements within the constraints of the chamber structure

3、Casters: 4 pieces

VII. Power Supply and Power Requirements:

1、Power supply: AC220, power: 4KW, frequency: 50HZ±0.5HZ

2、Allowable voltage fluctuation: ±10%

3、Separate wiring for neutral and ground wires