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The constant temperature and humidity test chamber provides a simulated environment of high temperature, low temperature, high humidity and low humidity to detect the deterioration degree of the material and strength of rubber, plastic and electronic products before and after the test. This machine can also simulate the container environment to detect the discoloration and shrinkage of rubber and plastic under high temperature and high humidity. Test the heat, cold, dry and wet resistance of various materials. The high and low temperature humidity and heat alternating test chamber is suitable for electronics, electrical appliances, batteries, universities, research institutes, inspection and quarantine bureau, paper products, food, vehicles, auto parts, metals

Meet the standard 1. Technical conditions of GB11158 high temperature test chamber

 

2. GB10589-89 Technical Conditions for Low Temperature Test Chamber

 

3. GB10592-89 Technical Conditions for High and Low Temperature Test Chamber

 

4. GB/T10586-89 Technical Conditions for Damp Heat Test Chamber

 

5. GB/T2423.1-2008 Low temperature test chamber test method

 

6. GB/T2423.2-2008 High temperature test chamber test method

 

7. GB/T2423.3-2006 Test Method for Damp Heat Test Chamber

 

8. GB/T2423.4-2008 Alternating damp heat test method

 

9. GB/T2423.22-2002 Test Method for Temperature Change

 

◆ IEC60068-2-1.1990 Low temperature test chamber test method

 

11. IEC60068-2-2.1974 High temperature test chamber test method

 

★ GJB150.3 high temperature test

 

GJB150.4 low temperature test

 

14. GJB150.9 damp heat test

 

Prohibitions for experimental equipment 1. Test or storage of samples of flammable, explosive and volatile substances

 

2. Test or storage of corrosive substance samples

 

3. Test or storage of biological samples

 

4. Test or storage of strong electromagnetic emission source samples

 

Inner box size and outer box size Inner box size: (width * height * depth) 400mm * 500mm * 500mm

 

Outer box size: (W * H * D) 900 × one thousand and four hundred × 1200 mm

 

Box volume: 80L

 

Temperature range - 40 ℃~+150 ℃

 

Humidity range 50 ～ 95% R • H adjustable

 

Temperature and humidity control range

 

Control stability temperature ± 0.5 ℃; Humidity ± 2%

 

Distribution uniformity temperature ± 2.0 ℃; Humidity ± 3.0%

 

Resolution temperature: 0.01 ℃; Humidity: 0.1% R.H

 

Average temperature rise time 3 ℃/min, non-linear temperature rise

 

Average cooling time 1 ℃/min, non-linear cooling

 

Temperature limit maximum temperature+150 ℃; Low temperature - 70 ℃

 

Introduction to the structure of the constant temperature and humidity test box is divided into three parts: the test room, the electric control cabinet, and the machine room: the upper left side is the test room, which is composed of the insulation layer test chamber, and the left single-door type access; The electric control cabinet is located on the right side, and the panel is mainly composed of temperature controller, switch button and fault protection indicator light; The engine compartment is located under the test room and consists of filter, solenoid valve, circuit part, compressor and other accessories.

 

Shell material steel plate baking paint

 

Inner box material SUS # 304 stainless steel plate;

 

Thermal insulation material: polyurethane rigid foam+glass wool

 

1 piece of silicone foam pressing

 

Two stainless steel shelves with adjustable height are set in the box

 

The heater is made of stainless steel fin type heat dissipation tube imported from Taiwan, China, China

 

Design of split humidifier cylinder

 

Blower motor

 

Stainless steel extended shaft

 

Multi-wing aluminum alloy fan wheel

 

Special adjustable shutter air supply and circulation system

 

Box door single door, double door, embedded non-reaction plane handle

 

Three-layer vacuum glass enlarged window

 

Electric automatic defogging, LED lighting

 

One built-in portable water tank (convenient for cleaning)

 

1 automatic feed pump (automatically supply water from the lower water tank to the upper layer)

 

Water shortage alarm device

 

Four polyurethane movable universal wheels are installed at the bottom of the tripod body

 

Characteristics of refrigeration system Multi-segment automatic load capacity adjustment technology

 

Compressor~French "Taikang" brand fully enclosed compressor

 

Condenser - fin type heat dissipation fan

 

Evaporator-fin type multi-stage automatic load capacity adjustment

 

Expansion valve~European and American imported components

 

Refrigerant~environment-friendly frozen snow seeds

 

Accessories~desiccant, oil separator, snow seed window, etc

 

Controller picture

 

The control mode of the constant temperature and humidity test chamber is the balanced temperature and humidity control system (BTHC), which controls the SSR in the P.I.D. mode, so that the heating and humidification amount of the system is equal to the heat and humidity loss, so it can be used stably for a long time.

 

Independent research and design of controller features

 

Programmable controller

 

LCD, color screen display

 

Touch screen direct button type

 

Temperature and humidity simultaneous programmable controller

 

Chinese and English display

 

7-inch true-color large screen

 

High contrast large LCD LCD display controller with adjustable backlight function.

 

Controller specification accuracy: temperature ± 0.1 ℃, humidity ± 1% R.H

 

Resolution: temperature ± 0.1, humidity ± 0.1% R.H

 

With upper and lower limit standby and alarm functions

 

Temperature and humidity input signal selection PT 100 Ω × 2 (dry bulb and wet bulb)

 

9 groups of P.I.D control parameter settings, P.I.D automatic calculation

 

Automatic correction of wet and dry bulb

 

The screen display function adopts the picture-to-talk mode, without key input, and the screen can directly touch the option

 

Temperature and humidity setting (SV) and actual (PV) values are displayed directly

 

It can display the current execution program number, segment times, remaining time and cycle times

 

Operation cumulative time function

 

Temperature and humidity program setting values are displayed in graphical curves, with real-time display program curve execution function

 

With separate program editing screen, each page can input at least 5 segments of temperature, humidity and time

 

Chinese and English can be switched freely.

 

The fault prompt screen is displayed.

 

The screen can be adjusted for backlight

 

The screen display protection function can be set for timing, TIMER or manual shutdown

 

Program capacity and program groups available for control function: 120 PATTEN at most

 

Available memory capacity: 1200 SEGMENTS in total

 

Repeatable commands: each command can be executed up to 999 times

 

The production of the program is conversational, with editing, clearing, inserting and other functions

 

SEGMENTS time setting 0 ～ 99Hour59Min

 

With power-off program memory, it can automatically start and continue to execute the program after power-on

 

Graphic curve can be displayed in real time during program execution

 

With reservation start and shutdown function

 

With date and time adjustment function

 

Key and screen lock function

 

Compressor French "Taikang" brand fully enclosed compressor

 

Compressor picture

 

Condenser fin type heat dissipation fan

 

Fin-type multi-stage automatic load capacity adjustment of evaporator

 

Expansion valve imported from Europe and America

 

Refrigerant environment-friendly frozen snow (Honeywell environmental refrigerant R404A and R23)

 

Features Multi-segment automatic load capacity adjustment technology

 

Refrigeration auxiliary components desiccant, oil separator, snow seed window, etc

 

One water tank is built in the tank

 

Add purified water or distilled water to the water quality (the tap water will have dirt, which is easy to block the pipeline and affect the product test)

 

Protection device 1. Zero crossing brake fluid power controller

 

2. Heating air incineration protection switch

 

3. Compressor overpressure protection switch

 

4. Compressor overload and overcurrent protection switch

 

5. Phase loss protection switch

 

6. Fuseless overload protector

 

7. Water tank water shortage protection switch

 

8. Heating and humidification fast insurance

 

Operating voltage 220V ± 10% 50HZ

 

Power is about 4KW

 

Allowable operating environment 0~30 ℃

 

Performance guarantee environment 5~25 ℃

 

1 set of threaded cover with 50mm test hole on the left side of the body

 

Non-woven fabrics 3 pieces for standard test

 

One copy of the specification shall be provided when ordering

 

One copy of equipment manual