Li Hui of alternating high and low temperature test equipment, automotive, home appliances, aviation scientific research in areas such as the necessary test equipment, used to test and determine the electrical, electronics and other goods and materials for high temperature, low temperature, alternating temperature or constant test temperature environment after the change of the parameters and performance. The refrigerant used R404A, R23( environmentally friendly)

One, an alternating test box product specifications:

Model: GD ( J ) W-100D× W× H: studio size450x 450x 500

Model: GD ( J ) W-225D× W× H: studio size500x 600x 750

Model: GD ( J ) W-500D× W× H: studio size800x 700x 900

Model: GD ( J ) W-010D× W× H: studio size1000x 1000x 1000

Model: GD ( J ) W-013D× W× H: studio size1000x 1000x 1300

Two, the basic technical requirements:

1, temperature: -20 ℃ ~ 150 ℃, -40 ℃ ~ 150 ℃, -60 ℃ ~ 150 ℃, -70 ℃ ~ 150 ℃

2, temperature uniformity: <± 2 ℃( no load )

3, the temperature fluctuation:± 0.5℃( no load )

In 4, the deviation of temperature: <± 2 ℃

In 5, the cooling rate:0.7~ 1.2 ℃ /min

In 6, heating speed: 1~ 3 ℃ /min

7, the time setting range: 0~ 999 hours

8, temperature alternating range: -40～ 150 ℃

In 9, the noise: < 65dB

In three, the material structure:

1, external bile using high quality ( t=1mm ) A3 plate CNC machining shape, the surface of the shell to spray treatment, smoother and more beautiful.

2, interior imported stainless steel ( SUS304) mirror panel.

3, insulation material: high density glass fiber insulation thickness is 100mm.

4, the temperature circulation system : the use of special air conditioning type low noise long axis of the fan motor, high and low temperature resistant stainless steel type multi-wing impeller, in order to reach the intensity of convection in vertical diffusion cycle.

In 5, between the door and the box using double-high temperature tensile test seal to ensure that the enclosed area

In 6, the back door handle, easy operation

In 7, the bottom of the machine adopts the high fixed PU activity wheel.

In 8, the observation window using a multilayer hollow glass, laminated chip inside the conductive film heating defrosting ( clearly observe the experimental process )

In 9, a test hole ( on the left of the machine ) can be connected with the power line or signal line using test ( aperture or apertures to increase number of instructions )

In four, the heating system

In 1, the far infrared nickel alloy high speed heating (2KW × 2) electric heater

In 2, high temperature completely independent system, does not influence the temperature test, high temperature test and alternating hot and humid

3, temperature and humidity control power output by the microcomputer calculation, high precision and high efficiency in electricity benefit

In five, a circuit control system

1, the temperature control instrument adopts" the Korean original TEMI850" big screen liquid crystal display - - programmable microcomputer PID control SSR output operation. All imports of super large LCD touch screen, the screen has the advantages of simple operation, easy to edit.

2, precision: 0.1℃( display )

3, resolution:± 0.1℃;

4, temperature sensors: PT100 platinum resistance temperature measurement system;

In 5, the control mode: thermal equilibrium temperature and humidity control; all electrical appliances are used ( Schneider ) series products

6, temperature and humidity control by P. I. DS.S.R with channel coordination control system

7, with the automatic calculation function, the changes of temperature and humidity conditions can be corrected immediately, so that the temperature and humidity control is more precise and stable

In 8, the controller interface in English are available, real-time operation of graphs by the screen display

9, with 100 sets of programs, n = 100, each section of loop 999steps of the capacity of each time period, set up to a maximum of 99hours 59 minutes

10, data and test condition input screen, controller has the locking function, avoid the human touch and shutdown

11, with RS-232or RS-485remote communication interface, can be on the computer design program, monitor the test process and perform functions such as automatic switch machine

In 12, with automatic controller screen screen saver function, in long time operation condition better to protect the LCD screen ( the long life expectancy )

In 13, the chamber outlet with automatic defrosting device ( which can make the test when the water vapor can not gather in the refrigeration evaporator, produce ice plug phenomenon )

Six, protection system

In 1, fan overheating protection

2, overall equipment lack-phase / reverse phase protection

In 3, the refrigeration system overload protection

In 4, the refrigeration system of over voltage protection

5, overall equipment timing

6, pump overheating, overcurrent protection

7, there are other leakage, water shortage, operating instructions, fault alarm automatic shutdown protection.

Seven, equipment conditions of use

1, the environment temperature:5℃ ~28℃(24 hours average temperature≤ 28 ℃)

In 2, the environmental humidity:≤ 85%

3, power: AC380(± 10% ) V/50HZ three-phase four wire system

Eight, executive standard

GB1059293high and low temperature test chamber technical conditions

GB2423.12001test A low temperature test method

GB2423.22001test B high temperature test method

GB2423.493test Db alternating high and low temperature test method

PS: the operating environment needs to be at room temperature of 28degrees below and has good ventilation.

The machine is placed around each 80cm can not be placed.

Free door-to-door, installation deb ing and operation introduced ( until the staff operates independently and satisfaction )