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1、 Main functions of the device:

The main purpose of using the four comprehensive testing system equipment is to provide multiple laboratory simulation environmental conditions required for model matching products. It provides a rapid alternating temperature environment with a temperature range of -70 ℃ to 150 ℃ and a temperature change rate of up to 5 ℃/min, as well as a humidity environment with a relative humidity range of 20% to 98% for wet and heat testing. It also requires mechanical environments such as sine vibration, random vibration, sine+random, random+random, and impact. These three environments are combined to form a comprehensive laboratory simulation environment for routine testing of mass-produced products, stress screening testing, preliminary testing of newly developed products, and reliability testing of standardized (identified) products, providing data and guarantees for product reliability.

Request the functionality of the device:

1. Provide environmental conditions of high temperature, low temperature, humidity, and vibration individually or in combination with each other:

2. Capable of setting high temperature, low temperature, humidity, vibration values, and program settings;

3. It should have low-temperature dehumidification function, provide dry air blowing ability, and have the ability to conduct temperature humidity vibration combination or cyclic alternating tests that meet the local requirements of GJB150.24A;

4. The air duct structure inside the box should form a uniform airflow field to the maximum extent possible, so that the temperature and humidity on the surface of the specimen are uniform, and meet the indoor wind speed requirements for climate chamber Environmental testing specified in GJB150A;

5. Capable of stable control of temperature change rate.

6. Capable of recording and retrospectively checking parameters such as temperature, humidity, vibration operation time, and fault information, displaying faults, and prompting troubleshooting steps.

7. It should have control and display functions for multi-channel temperature sensors and vibration sensors, and be able to record and output information separately;

8. After the assembly of the three comprehensive equipment, each system should have data communication interfaces (serial and network ports) that can be connected to the laboratory data network for remote monitoring.

2、 Main advantages of the product:

1. Product environmental protection and energy-saving technology advantages

Utilize a multi-channel, environmentally friendly and energy-saving (low-noise) mechanical compression refrigeration system.

All materials, parts, components, raw materials, etc. of the device, whether domestically produced or imported, are made of environmentally friendly products; Based on the characteristics of mechanical compression refrigeration, a two-stage multi-channel main and bypass system is adopted. The multi-channel main and bypass can be adaptively selected and activated according to different working conditions. The entire control is automatically implemented by an intelligent control system according to the working conditions, changing the traditional way of using a temperature controller to control the heater to offset the cooling capacity to control the cooling capacity. So as to achieve energy-saving effect, not only does the energy consumption account for only 80% of similar products. It also reduces the operating load of the refrigeration compressor, reduces equipment vibration and noise, and improves control accuracy. To achieve better energy-saving effects, frequency conversion technology is adopted to adapt the refrigeration output of the refrigeration compressor to various temperature change rate requirements in the laboratory, while controlling the power loss during use to achieve energy-saving effects. Use sound-absorbing and silencing methods in different parts of the entire structure and mechanical working process to reduce the overall noise of the equipment.

2. Independently developed multi-channel and multi-stage throttling system (refrigeration system)

The refrigeration system of this equipment is designed with different capillary main paths and bypass paths according to different operating conditions. The capillary throttling system is automatically controlled and adjusted by the intelligent communication control system based on the operating conditions to ensure that the flow rate can be adjusted, achieving the purpose of temperature change. Moreover, the temperature field changes uniformly and the temperature fluctuation is minimal.

3. The broadband compression balance temperature control system is applied to achieve rapid temperature control through a fast convergence PID adaptive algorithm.

By using a temperature mixing chamber, a static pressure chamber, and a forced air duct system with centrifugal blades, sufficient exchange of cold and heat is ensured, and air is evenly supplied through the top orifice plate to each space in the working room (experimental area) to achieve temperature uniformity; To achieve rapid temperature convergence, our company has collaborated with Sanyuan Corporation in South Korea to develop a dedicated PID adaptive algorithm suitable for our company. This control method continuously adjusts the control according to the temperature situation during the control process, achieving the control objectives of fast sword retraction, small temperature overshoot, and high stability.

4. Realize remote visual control.

The device is equipped with a human-machine management interface and a touch mode automation control system to achieve automatic control; Simultaneously, connect to remote computers through RS485 communication interface to achieve network management and remote monitoring. The entire system is controlled and managed through a graphical interface, which is simple and fast, with automatic fault prompts. The graphical prompts are energy-saving and provide solutions to guide users in quickly troubleshooting.

5. Reasonable structural design

3、 Performance indicators and system composition of temperature and humidity vibration comprehensive testing machine:

Sample limitations

This testing equipment prohibits the testing of samples containing flammable, explosive, and volatile substances; Testing for storing samples of corrosive substances, testing for storing organisms, testing and storing samples of strong electromagnetic emission sources

Volume, weight, and size

Product model

GC-4ZH-1000D

Nominal internal volume

1000L

Effective size of inner box

1000×1000×1000（mm）    W×H×D

Exterior space

Approximately 2100 × 1900 × 3700 (mm) W × H × D (excluding lifting frame dimensions)

weight

2300㎏

Work noise

≤ 75db measured at a distance of 1 meter in front of the machine and 1.2 meters above the ground

Power, current, and power supply

maximum power

About 60KW

Maximum current

About 7*

Power supply conditions

And power supply

AC380V three-phase four wire+protective grounding; The allowable voltage fluctuation range is ± 10% V;

The allowable frequency fluctuation range is 50 ± 0.5HZ; TN-S power supply or TT power supply

The grounding resistance of the protective grounding wire is less than 4 Ω

Require users to configure corresponding capacity air or power switches for the equipment at the installation site, and this switch must be independently controlled. When placing the powered sample in the box of this equipment, please use an external power source for the sample power supply, and do not directly use the local power supply;

performance index 

Performance parameters of temperature and humidity test chamber

Temperature and humidity range

Temperature range:- 70～150℃

Humidity range: 20-98% RH (as shown in the figure)

control accuracy

Temperature resolution: 0.01 ℃

Temperature deviation: ± 1.5 ℃;

Temperature uniformity: ≤ 3.0℃

Temperature fluctuation: ± 0.5 ℃

Humidity control accuracy

Humidity resolution: 0.1% RH

Humidity deviation:> ± 3.0% RH at 75% RH; ≤ ± 5.0% RH at 75% RH

Humidity uniformity: ≤ 3%RH

Humidity fluctuation: ± 2% RH

High altitude low pressure

32Km (air pressure 10mbar)

Height change rate

5Km/min，﹣7Km/min； (Below 20 km)

3Km/min，﹣10Km/min； （20～30 Km）

Temperature change rate

1. ≥ 5 ℃/minute (-70 ℃~+150 ℃) (blind test during no-load installation)

Note: 1. The above performance parameters are measured at a water temperature of 25 ℃ without a sample;

2. Maximum vibration table size: length 1000mm * width 1000mm, vibration table provided by the customer

3. Damp heat laboratory without heat source load

Execution standards and testing meet the conditions

1. GB2423.1-2008/IEC6008-2-1-2007 Environmental testing for electrical and electronic products Part 2: Test methods Test A: Low temperature

2. GB/T 2423.2-2008 Environmental testing for electrical and electronic products - Part 2: Test methods - Test B: High temperature

3. GJB150.3A-2009 High temperature test method

4. GJB150.4A-2009 Low temperature test method

GB2423.22-2008 Environmental testing for electrical and electronic products Part 2 Test methods Test Nb: Temperature change at a specified rate

6. GBT 2424.5-2006 Environmental Testing Temperature Test Chamber Performance Confirmation for Electrical and Electronic Products

7. GB/T 10589-2008 Technical Conditions for Low Temperature Test Chamber

8. GB/T2423.3-2008 (IEC68-2-3) Test Ca: Constant Damp Heat Test Method

9. GBB150.9A-2009 Damp Heat Test Method

10. G/BT 2423.4-2008/IEC6008-2-30:2005 Test Db: Alternating Damp Heat Method

11. GB/T5170.18-2005 Basic parameter calibration method for environmental testing equipment for electrical and electronic products Temperature/humidity combined cycle testing equipment

12. GB/T10586-2006 Technical Conditions for Damp Heat Test Chamber

13. GBT 2424.6-2006 Environmental Testing for Electrical and Electronic Products - Temperature and Humidity Test Chamber Performance Confirmation

14. GBT 2424.7-2006 Environmental testing for electrical and electronic products - Measurement of temperature test chambers A and B (with load)

GB-T2423.35-2005 Test Method for Low Temperature Sinusoidal Vibration

16. GB-T2423.36-2005 High temperature sinusoidal vibration test

17. GBT5170.13-2005 Inspection Method for Vibration (Sinusoidal) Mechanical Vibration Test Equipment

18. GBT2423.34-2005 Environmental Testing for Electrical and Electronic Products Part 2 Test Methods Test ZAD Temperature Humidity Combined Cycle Test

structure characteristics

Machine structure

Temperature and humidity box material: SUS304 # stainless steel 1.2mm thick

Temperature and humidity box outer box material: cold-rolled steel plate 1.2mm thick baked paint treatment, baked paint color is gray white, according to the customer's color chart

Temperature and humidity box insulation material: polyurethane foam adhesive+glass fiber cotton 150mm thick

The control box and test box are integrated, with front and rear structures

The temperature and Humidity Chamber and vibration test chamber have an upper and lower structure

The vibration table is located inside the test chamber

The vibration testing machine and temperature and humidity testing machine are combined, detachable, and can be used separately

Air conditioning channel

Built in air chamber, circulating air duct and stainless steel circulating fan, through the top back leaf window and diffuser, the wind blows out evenly from the top, and the temperature and humidity in the mixing room will be distributed to the test space, so as to achieve the purpose of uniform control of temperature and humidity

Box door

a) Double hinged doors, the hinges should be sturdy and durable, and long-term use should not easily cause them to fall. The hinges are located on both sides of the test box, and the door opens from the middle to both sides;

b) Two silicone rubber sealing strips and an electric heating (automatic adjustment) anti condensation device for the door frame;

c) There is an observation window with a size of 270 × 360mm (width × height), anti frost and anti condensation insulated glass observation window on the door of the test chamber;

d) There is a lighting lamp on the door.

Lead test hole

1 piece with a diameter of 100mm, located on the left side of the box, at 1/2 of the side wall of the box near the door (with hole cover and hole plug)

Sample rack

Adjustable height position sample rack with 2 layers

The load-bearing capacity of the sample rack for a single layer shall not be less than 50 Kg (uniform load);

The individual load-bearing capacity of the bottom plate of box C shall not be less than 100 Kg (uniform load)

When used in conjunction with vibration, the maximum load-bearing capacity of the sample should not be less than 500 kg (uniform load)

Condensation outlet hole

There are outlet holes for studio condensate and unit condensate to facilitate the outflow of condensate;

Air pressure balance device

The test chamber should be equipped with a pressure balancing device to balance the indoor pressure fluctuations caused by vibration

Activity Base

The bottom plate of the test chamber is made into a movable and detachable structure, and the equipment is equipped with 3 sets of movable bottom plates, including one set for use with a horizontal vibration table, one set for use with a vertical surface, and one set for blind hole plates, which are used separately for the equipment

control panel

TEMI2700 LCD touch programmable controller, emergency stop button switch, adjustable over temperature protector, lighting switch, main power switch, RS-232 communication interface imported from South Korea

Mechanical room

Refrigeration unit, exhaust fan, drainage device, adjustable back blade window, steam outlet

Distribution control cabinet

Main power circuit breaker, controller, distribution board, cooling fan, over temperature protector

Electric control system

controller

Imported controller, which controls temperature and humidity separately

SAMWON from South Korea, LCD touch screen controller TEMI2700

a distribution board

Reasonable, scientific and tidy electrical distribution panel

heating system 

Using nickel alloy heating tube P I. D controls heating to achieve temperature equilibrium

The heater is made of exposed spiral nickel chromium heating wire and insulated ceramic bracket, with low surface load, sensitive temperature control, and small temperature hysteresis.

Heater control mode: PID+PWM+ SSR， Solid state relays are used for contactless zero crossing triggering to drive heaters, with no contact sparks or noise, and a long service life.

Humidification and dehumidification system

A adopts external humidification method, the compressor starts dehumidification, and P.I.D controls the humidification amount to achieve the required humidity

B equipment reserves a dry air blowing inlet, and customers can connect dry air dehumidification themselves

Imported nickel chromium alloy electric heater, boiler humidification method

Screen display

function

Temperature and humidity setting (SV) actual (PV) value displayed directly

Can display the execution program number, segment number, remaining time and number of cycles, and display the running time

Program editing and graphical curve display

With a separate program editing screen, each page can input 4 segments of temperature, humidity, and time

Fixed point or program action status display

Language conversion can switch between Chinese/English

7-inch true color display screen

Program capacity and control function

Available program quantity: up to 120 groups, one program can be combined from 1 to 99 segments; Available memory capacity: 1200 segments, can execute commands repeatedly: each command can be executed up to 999 times; The slope setting of the program can be set by the timeline; Programs can be linked for use; The production of the program adopts a conversational style with simple operation; It has functions such as editing, clearing, inserting, etc

Two sets of time signal output control (controllable on/off action of the test object); Has 9 sets of PID parameter settings; During program execution, it has the function of skipping files and maintaining them; Equipped with power-off program memory, automatically starts and continues to execute program functions after power restoration; Data collection, export, and graphical viewing functions; PID automatic calculation and FUZZY control function; The screen can be adjusted for backlight and the backlight time can be set; The screen display protection function can be set to be timed or manually turned off; Program replication, COPY,  Connection function, editing experiment titles and other program editing functions; Equipped with scheduled startup and shutdown functions; Equipped with date and time adjustment functions; Button and screen lock (LOCK) function; Standby image viewing function and abnormal handling image explanation function

Remote control function

PC communication function (starting a web browser from the PC to access and log in to the device);

Set IP address

Test temperature control function;

External voltage power supply control setting;

Traceability (checking time, setting and sending traceability data);

PC applications;

Web functionality;

Help (instructions on how to use various functions (including sub items) and maintenance of control functions).

RS-232

communication interface 

Can display curves and collect data

Can be used as a monitoring and remote control system

Setting method

Chinese/English interface, touch input

Operation mode

Program mode/fixed value mode

Set Range

Maximum temperature range with upper and lower limits of 5 ℃

Display resolution

Temperature: 0.01 ℃; Time: 0.1 minutes;

Power off memory function

The power-off recovery mode can be set to: hot start/cold start/stop

Temperature input

rtd 

Humidity measurement body

Imported electronic humidity sensor, precise measurement of real-time relative humidity and feedback of current humidity value to the controller

Temperature sensor

Temperature sensor: armored platinum resistor+4 mobile platinum resistors and corresponding installation brackets, transmission cables, and interface with the display screen

Display 4 temperature values inside the box and detect the temperature around the product

control mode 

Anti integral saturation PID

BTC Balance Temperature Control Method (Temperature Test Equipment)

BTHC Balanced Temperature and Humidity Control Method (Temperature and Humidity Testing Equipment)

Sample temperature measurement

Armored platinum resistors with 6 mobile platinum resistors and corresponding installation brackets, transmission cables, and links to paperless recorders for displaying the temperature around the sample

Storage function

Standard configuration: 2G SD card for recording test data curves, capable of uploading and downloading data, expandable storage capacity

Software usage environment

IBM PC compatible machine, with a P Ⅱ or higher CPU, 128MB or more of memory, running on Simplified Chinese Windows 2000 or Simplified Chinese Windows XP operating system

refrigeration system

Cooling method

In order to ensure the cooling rate and minimum temperature requirements of the laboratory, a binary duplex refrigeration system is used in this laboratory. The duplex system includes a high-temperature refrigeration cycle and a low-temperature refrigeration cycle, and heat exchange is achieved through an evaporative condenser

Refrigeration compressor

Adopting low-temperature compressors imported from Europe and introducing refrigeration systems from Germany.

Cooling method

Water cooled shell and tube condenser, heat dissipation of chiller

Note: The chiller is provided by the customer, ensuring a cooling capacity greater than 300KW and a water supply pressure of 2-4 kgf/cm2

Vacuum pump

Using advanced German Leybold vacuum pumps,

Thickened high and low temperature resistant soft connection

Specially designed with thick soft connections that are resistant to high and low temperatures and have good insulation performance, this product is made of specially made silicone gel. The pressure sensor is specially designed to ensure that the soft connections are not recognized or sucked in during high and low pressure tests.

evaporator

Finned tube heat exchanger

Evaporative condenser

The layout heat exchanger using high-temperature copper brazing has a small surface area, low self energy loss, and high heat transfer efficiency

Throttling device

Thermal expansion valve, capillary tube

Fully imported refrigeration accessories

Oil separator

Separate the frozen oil droplets mixed with the high-temperature and high-pressure refrigerant gas discharged from the compressor, and return them to the compressor's curved track chamber for lubrication and cooling purposes

Dry filter

Absorb residual moisture and acidic substances in the refrigerant of the refrigeration system, and filter out solid impurities particles, copper chips, etc. in the system to protect the normal operation of the expansion valve and capillary tube from ice blockage and dirty blockage

cryogen

Using environmentally friendly refrigerant R404a/R23 as the refrigerant medium for this refrigeration system

Characteristics of refrigeration system

A、 The entire system pipeline undergoes a leak test with ventilation and pressure of 22kg.

B、 The heating and cooling systems are completely independent.

C、 Equipped with our company's professional technical features, it prevents damage to the system caused by high-temperature and high-pressure airflow in the same flow refrigeration unit.

D、 All freezing system action programs are completely controlled by a microcomputer controller.

E、 There is a water tray at the bottom of the compressor, which can collect the condensed water generated by frosting.

F、 The compressor is equipped with a PTC temperature sensor, which provides over temperature protection when the compressor exceeds the temperature limit.

G、 The compressor is equipped with an oil pressure protector to achieve oil pressure protection.

H、 The high and low pressure protection device monitors the pressure of the refrigerant during the operation of the equipment. Once the refrigerant pressure is higher than the system's limit pressure or lower than the minimum pressure set by the system, an alarm is immediately issued and the power is cut off until the fault is resolved.

I、 The refrigeration system uses imported brand accessories, which are reliable in quality and ensure the stability of the system.

Wet and hot water supply system

Humidified water supply

1. Water quality: tap water, our company is equipped with a small soft water filter

2. Connection diameter: 4-point tap water pipe.

3. Water supply pressure: 0.1-0.4Mpa

4. The humidification part adopts anti rust materials and processes, and should have devices such as water cut protection, automatic water level control, and automatic water filling system

Safety protection device

refrigeration system

Compressor overheating

Compressor overcurrent

Compressor overpressure

Overheating of condensing fan

Test box

Adjustable over temperature protection

Extreme overheating of air conditioning channel

Fan and motor overheat relay

Electrical part

Main power phase sequence and phase loss protection

Leakage protection

Overload and short circuit protection

Protection against high environmental temperature

Requirements for usage, storage environment, and site

Environmental conditions for use

1. The ambient temperature is 5-30 ℃ and the relative humidity is ≤ 85% R.H;

2. The installation site must be a flat and vibration free ground;

3. The equipment should be kept away from heat sources and flammable and explosive substances;

4. The installation location should not be directly exposed to sunlight and maintain indoor air circulation;

5. The equipment installation site needs to be clean and cannot be installed in dusty areas or dust outlets

6. Atmospheric pressure: 86-106 kPa

7. Air quality: No high concentration dust or corrosive gases, no flammable or explosive gases

Ground requirement: Flat ground

Storage environment requirements

The ambient temperature of the equipment should be maintained within 0 ℃ to+35 ℃

Installation site requirements

The distance between the left, right, and rear wall panels of the test chamber and the wall must not be less than 800mm, and the distance between the front and the wall must not be less than 1000mm. When transporting equipment, whether it is possible to enter the entrance, passage, elevator, etc., to avoid affecting the progress of your company's project.

type of shipping

Whole machine transportation

Acceptance criteria and third-party verification