Constant temperature and humidity chamber

The products of the large-scale constant temperature and humidity laboratory comply with national standards such as GB10592-89, GB10586-89, GB2423-1, GB/T2423.1-2001, GB/T2423.2-2001, GB2423.3-93, etc.

The large constant temperature and humidity chamber provides the industry with temperature and humidity environment testing for large parts, semi-finished products, and finished products. The constant temperature and humidity laboratory is mainly composed of control panels, distribution panels, insulation car boards, supply fans, heaters, humidifiers, and freezers. The main specifications can be divided into more than 10 standard indoor sizes and dozens of different testing specifications under different conditions

The following parameters were measured for performance after being stable for 2 hours in a large constant temperature and humidity laboratory without test load or shelves. In addition, the temperature rise and fall time refers to the performance measured under no-load conditions at room temperature+25 ℃ and relative humidity ≤ 85 ℃:

1. Temperature requirements: 0～80℃/-20～+80℃/-40～+80℃/-70～+80℃/.
2. Temperature fluctuation: ± 0.5 ℃
3. Temperature uniformity: ± 2.0 ℃
4. Heating rate: -40 ℃ →+80 ℃ ≤ 60 min (non-linear no-load)
5. Cooling rate:+20 ℃ → -40 ℃ ≤ 90 min (non-linear no-load)
6. Humidity fluctuation: ≤ ±2.0%R.H
7. Humidity uniformity: ≤ ±3.0%R.H
Note that the temperature change rate refers to the air temperature change rate, not the product temperature change rate
largeStructure Introduction
1. Warehouse board (with a thickness of 100mm):
a. Outer box material: color steel plate.
b. Inner box material: stainless steel plate (SUS # 304)
c. Thermal insulation material: rigid polyurethane foam+glass fiber
d. Load bearing capacity of storage board: 500kg/㎡ (evenly distributed load)
2. Warehouse base, electrical control box and freezer: National standard angle iron+6 # channel steel+steel plate spray coating
3. Large constant temperature and humidity laboratory chamber door: double door or single door
a) Material: Same as warehouse board
b) Handle: cylindrical handle
c) Rear button: SUS#304.
d) Window 450 × 300 × 40mm with three layers of vacuum
e) Install a movable exhaust window on the inner side of the inner box
Step in styleRelocation of air supply circulation system:
a. Motor: 5 units of AC380V 2HP
b. Extend the axis
c. Fan: Multi blade fan (SIROCCO FAN)
d. Ceiling forced air circulation system
e. Heating system: finned heat dissipation tube shaped stainless steel electric heater for air circulation heating
Step in relocation refrigeration system:
1. System and Compressor: The refrigeration system is composed of a semi enclosed compressor imported from France
2. Cooling method: water-cooled condenser. (Cooling tower required)
3. Evaporator: fin type automatic load capacity adjustment
4. Expansion system: an automatic capacity controlled refrigeration system.
5. Refrigerant: Adopting green and environmentally friendly (HFC) with zero ozone coefficient
6. Freezing accessories: expansion valve (DANFOSS, Denmark), solenoid valve (Japan); Filter (DANFOSS, Denmark); Pressure controller (DANFOSS, Denmark); Globe valve (DANFOSS, Denmark); Refrigeration components such as oil separators (European and American ALCO) are all imported.
largeControl system:
Temperature controller: TEMI880 LCD touch mode programmable controller imported from South Korea, a large LCD display controller with high contrast and adjustable backlight function.
a. Specification of controller for large constant temperature and humidity laboratory:
1. Accuracy: Temperature ± 0.1 ℃+1 digit
2. Resolution: Temperature ± 0.1
3. Temperature slope: adjustable from 0.1 to 9.9
4. Equipped with upper and lower limit standby and alarm functions
5. Temperature input force signal PT100
6. Temperature conversion output: 4-20mA
7. 9 groups of P I. D control parameter setting, P.I.D automatic calculation
b. Large scale constant temperature and humidity laboratory screen display function:
1. Face to face dialogue with drawing, no need for button input, touch options directly on the screen
2. Direct display of temperature setting (SV) and actual (PV) values
3. Can display the current program execution number, segment number, remaining time, and number of cycles
4. Accumulated operation time function
5. The temperature program setting value is displayed in a graphical curve, with real-time display of program curve execution function.
6. With a separate program editing screen, each page can input at least 5 segments of temperature and time.
7. Chinese and English can be switched freely.
8. The screen can be adjusted for backlight.
9. The screen display protection function can be set to timer, TIMER, or manually turned off
c. Program capacity and control functions:
1. Available program groups: up to 120 PATTEN
2. Available memory capacity: 1200 SEGMENT in total
3. Repeatable command execution: Each command can be executed up to 999 times
4. The production of the program adopts a conversational style, with functions such as editing, clearing, and inserting
5. SEGMENT time setting: 0-99Hour59Min
6. Equipped with power-off program memory, it automatically starts and continues to execute program functions after power restoration
7. Equipped with RS-485 communication interface (software sold separately)
8. Real time display of graphical curves during program execution
9. It has the function of scheduled startup and shutdown
10. Has date and time adjustment function
11. Button and screen lock (LOCK) function
H. Control panel:
f) One temperature controller (imported from Korea)
g) One power button switch (Taiwan)
h) One over temperature protection switch (Taiwan)
i) One lighting button switch (Taiwan)
Large safety protection device:
1. Studio over temperature protection device
2. Heater short circuit, overload
3. Heating air burn prevention switch
4. Reverse phase and under phase protection device
5. Compressor overheat protection switch
6. Compressor high pressure protection switch
7. Compressor overcurrent protection switch
8. Leakage circuit breaker
9. Overload of blower motor
Step in styleStandard configuration:
1 . Large vacuum tempered glass perspective window with embedded heating element
2 . One test hole with an inner diameter of ￠ 50mm, equipped with one stainless steel hole cover and one silicone plug (installed at the user's position)
3. Indoor lighting: Explosion proof lamps AC220V 40W x2 pieces.
4. 8L/hr, including RO reverse osmosis water purifier.
5. Non fuse switch.
Step in stylePower supply and installation requirements:
1. Laboratory power supply
a. Power supply: AC 3 ✘ 5 W 380V 50/60HZ. Voltage fluctuation allowable value: ± 10%
b. Total power of the equipment: approximately 55KW
c. Maximum working current: 150A.
2. Natural drainage outlet:
a. Indirect drainage pipe: 1 VP30
There should be no protrusions in the middle of the drainage pipe, and the floor of the house should not have extreme tilting
The drainage pipe is provided by our company. Please provide a drainage outlet (￠ 20mm)