Low temperature test chamber

Low temperature test chamberJW-2204B-204

Low temperature test chamberJW-2204B-204

Low temperature test chamberJW-2204B-204

1、 Product Overview:

1) According to GB/T 2423.1-2008; GB/T 2423.2-2008; GB/T 2423.3-2008; GB/T 2423.4-2008; The test standards require design that complies with both GB 10592-89 and GB 10586-2006 test standards.

2) The structural design of the experimental system is advanced and reasonable, the manufacturing process is standardized, and the appearance is beautiful and generous.

3) The main functional components of this test chamber are all equipped with world-class configurations (high gold content), advanced and reliable technical principles, and optimal control of noise and energy efficiency.

4) The matching and assembly of components are good, and the main functional components are all advanced, which improves the safety and reliability of the product and ensures the long-term and high-frequency use requirements of users.

5) The equipment has good operability, maintainability, good temperature stability and durability, good safety performance, does not pollute the environment and harm personal health.

6) All wires inside the control cabinet are printed with serial numbers and numbers by dedicated equipment, and the wiring is clear and easy to understand.

II ★Main technical indicators

★1. Volume and size

★1) Test boxInner box size: W1500mm×D1500mm×H1800mm；

★2) Peripheral box size: approximately W2600mm × D2000mm × H2200mm

★2. performance

★2.1. Test environment conditions: The ambient temperature is 5-35 ℃ and the relative humidity is ≤ 85% RH;

★2.2 Temperature range of the test chamber: -20 ℃ to room temperature;

Temperature range: -20 ℃ to room temperature (adjustable)

★2.3 Temperature fluctuation: No load temperature fluctuation ≤ ± 0.5℃；

★2.4 Cooling rate: room temperature～-20 ℃ 0.7-1 ℃/min (unloaded, average throughout the entire process);

★2.5 Double door: Double hinged door (opening from the middle to both sides), singleThe size of the door is approximately850mm×2000mm*2(width x height), door frame anti condensation electric heating device; Equipped with transparent electric heating film and insulated tempered glass observation window2A (located on the door, with a visible range of approximately) W400×H500mm）； Equipped with a safety door locking mechanism;

★2.6 Bottom plate load-bearing capacity: The inner box bottom plate is fully welded, ≥1000kg (uniform load);

★2.7 The thickness of the insulation layer is 100mm；

★2.8 Warning lights: equipped with three color status display lights

★2.9 Safety switch: Install emergency stop switch outside the box

2.10 Refrigerant: Environmentally friendly refrigerants R404A and R23 are used;

2.11Local control: equipped with LCD color LCD touch screen, can control programs and directly display temperature and humidity data.

2.12.1 Display: Color LCD;

2.12.2 Operation mode: Program mode (≥ 80 programs), constant value mode;

2.12.3 Chinese menu and touchscreen input;

2.12.4 Communication Function: Equipped with remote control software, the test program can be remotely set, controlled, stored, displayed, and printed through RS-485 or Ethernet interface, and the communication protocol can be opened;

2.12.5 Auxiliary functions: Fault alarm and cause, processing prompt function; Power outage protection function; Upper and lower temperature protection function; Timer function (automatic start and stop operation), self diagnostic function;

2.13. Safety protection device:

2.13.1 Refrigeration system: compressor overpressure protection, compressor motor overheat protection, compressor motor overcurrent protection;

2.13.2 Humidification system: heating tube dry burning protection, water supply abnormal protection, drainage abnormal protection;

2.13.3 Test Chamber: Adjustable independent over temperature protection, air conditioning channel limit over temperature protection, safety door lock that can open the door from the inside, fan motor over temperature protection;

2.13.4 Other safety protections: main power phase sequence and phase loss protection, grounding, leakage protection, load short circuit protection, emergency stop switch;

2.14Automatic data recording and USB interface,networkThe interface can save data to a USB flash drive or computer

2.15 The room is equipped with moisture-proof and explosion-proof lighting fixtures

2.16 Independent research and developmentColor touch screen model: JWT-2700Operation, PID automatic adjustment, automatic display and recording of program start date, time, curve, etc

2.17Temperature and humidity sensor: PT100 platinum resistance sensor imported from Taiwan, China Jellis is used, and the material is SUS316 stainless steel

2.18Solid state relay control, equipped with a cooling fan. Adopting SUS304 # stainless steel heater to ensure three-phase current balance during heating process

2.19 Compressors: 2 semi enclosed German Bitzer compressors, condensing method: water cooling, using industrial ice water machines or industrial water towers (optional); Industrial ice water machines can be installed indoors or outdoors.

2.20Chassis material: The inner box of the tray type box is made of 304 # stainless steel material, and the outer box is made of high-grade insulated color steel plate

2.25 The vulnerable parts inside the equipment (such as heaters, temperature and humidity sensors) should be easy to replace, the room insulation effect should be good, the internal temperature and humidity distribution should be uniform, and any dead corners should be avoided.

2.21 Test ChamberThe distance between the outer side of the wall and the inner side of the surrounding outer wall: ensure that the temperature difference is less than ± 2 ℃ (reference: greater than or equal to 0.3m);

2.22 Thermal conductivity: Meets national standard requirements

2.23 Meet the test standards ：

1）GB/T 2423.1-2008; GB/T 2423.2-2008; GB/T 2423.3-2008; GB/T 2423.4-2008

2）GB 10592-89； GB 10586-2006