1、 Meets standards
The performance indicators comply with the requirements of GB/T 5170, 2, 5-95 "Basic parameter calibration methods for environmental testing equipment for electrical and electronic products - Low temperature, high temperature, constant humidity and heat, alternating humidity and heat testing equipment"
Basic environmental testing procedures for electrical and electronic products Test A: Low temperature test method GB/T 2423.1-2008 (IEC60068-2-1)
Basic environmental testing procedures for electrical and electronic products - Test B: High temperature test method GB/T 2423.2-2008 (IEC60068-2-2)
Basic environmental testing procedures for electrical and electronic products Test Ca: Constant humidity and heat test method GB/T 2423.3-2016
Basic environmental testing procedures for electrical and electronic products Test Da: Alternating humidity and heat test method GB/T2423.4-2008 (IEC60068-2-30)
2、 Detailed parameter performance (referring to air-cooled at room temperature of 20 ℃ and no load)
2.1. Model: WS-50L

2.2. Inner box size: W350 * H400 * D350mm
Outer box size: W580 * H1350 * D870mm
2.3 Temperature range: -40 ℃ to 150 ℃
2.4 Temperature fluctuation: 0.5 ℃
2.5 Temperature deviation: ≤ 2 ℃
2.6 Heating time: Approximately 40 minutes from room temperature to 150 ℃ (non-linear under no load)
2.7 Cooling time: From room temperature to -40 ℃ for about 60 minutes (non-linear under no load)
2.8 Humidity range: 20% to 98% R.H
2.9 Humidity fluctuation: 3% R.H
2.10 Humidity deviation: ≤ 3%
2.11 Machine weight 150KG, 180KG after wooden box packaging
2.12 Power supply: single-phase 3.2KW 220V 50HZ
2.13 Temperature and humidity control range
3、 Structure and Material
3.1. Inner box material: stainless steel plate (SUS # 304)
3.2. Outer box material: Stainless steel plate treated with atomization (SUS # 304) or cold plate painted (optional)
3.3. Insulation material: Hard Polyurethane foam and glass wool
3.4 Air supply circulation system:
(1) One 90W motor
(2) Stainless steel extended shaft
(3) SIRCCO FAN
3.5. Box door: Single panel door, single window, left open, with handle on the right side

(1) Window 260x340x40mm 3-layer vacuum layer
(2) Flat embedded handle
(3) Rear button: SUS # 304
4、 Freezing system
4.1. Compressor: Fully sealed compressor imported from France
4.2. Refrigerant: Environmentally friendly refrigerant R404A
4.3. condenser: finned attached heat dissipation motor
4.4 Evaporator: Fin type multi-stage automatic load capacity adjustment
4.5. Other attachments: desiccant, refrigerant flow window, expansion valve
4.6 Expansion system: capacity controlled refrigeration system
5、 Control system
Imported from South Korea, with a 7-inch Korean 880 LCD touchscreen panel in full Chinese, capable of inputting data in a face-to-face manner. Temperature and humidity can be programmed simultaneously, with curve display and set/displayed value curves. Multiple alarms can be displayed separately, and when a fault occurs, it can be displayed on the screen to eliminate the fault and eliminate misoperation. Multiple sets of PID control functions, precise monitoring functions, and displayed on the screen in the form of data.
5.1 Controller specifications
a. Accuracy: Temperature ± 0.1 ℃, humidity ± 1% RH
b. Resolution: Temperature ± 0.1, humidity 1% R.H
c. Temperature slope: 0.1-9.9 can be set
d. Equipped with upper and lower limit standby and alarm functions
e. Temperature and humidity input signal selection PT 100 Ω × 2 (dry and wet bulb)
f. Temperature and humidity conversion output: 4-20MA
g. 6 groups of P I. D Control parameter settings, P. I.D automatic calculation, automatic correction of wet and dry bulbs
5.2. Screen display function
A. a Touch input, display options directly on the screen
b. The temperature and humidity setting (SV) and actual (PV) values are displayed directly (in English)
c. Can display the current execution program number, segment, remaining time, and number of cycles
d. Operation cumulative time function

e. The temperature and humidity program settings are displayed in graphical curves, with real-time display of program curve execution function
f. With a separate program editing screen, directly input temperature, humidity, and time
5.3 Program capacity and control functions
a. Available program groups: 100 groups
b. Available memory capacity: 5000SEGENTS in total
c. Repeatable commands: Each command can be executed up to 9999 times
d. The production of the program adopts a conversational style and has functions such as editing, clearing, and so on
E SEGENTS time set from 0 to 530Hour59Min
f. Equipped with power-off program memory, it automatically starts and continues to execute program functions after power restoration
g. Real time display of graphical curves during program execution
h. With date and time adjustment function
i. Key and screen lock function
6、 Standard configuration
6.1. Power cord 4.0 mmx3 core
6.2. One 232 export terminal
6.3. Stainless steel SUS # 304 square punched steel plate storage rack
6.4. 8 stainless steel adjustable spacing buckles
6.5. One 11W energy-saving lighting window light
6.6. One 50mm test hole on the left side of the machine body, with one stainless steel hole cover attached.
6.7. One piece of non-woven fabric for standard testing
6.8. One set of controller user manual and one set of operation manual
7、 Surrounding environment
7.1. Permissible temperature range for use: 0-35 ℃
7.2 Performance guarantee range: 5-35 ℃
7.3. Relative humidity: not exceeding 85%
7.4. Atmospheric pressure: 86-106Kpa
7.5. No strong vibration around
7.6. No direct sunlight or other heat sources

7.7. Natural drainage outlet: ※ There should be no protrusions in the middle of the drainage pipe, and the floor of the house should not have extreme tilting

8、 Main electrical accessories of the equipment are attached below