1. Temperature range:- 0℃~150℃

2. Humidity range: 30~98% RH (at temperatures between 25 ℃~80 ℃)

3. Temperature uniformity: ≤ 2 ℃ (when unloaded)

4. Humidity uniformity:+ 2- 3%RH

5. Temperature fluctuation: ± 0.5 ℃ (when unloaded)

6. Humidity fluctuation: ± 2%

7. Temperature deviation: ± 2 ℃

8. Humidity deviation: ± 2%

9. Cooling rate: 0.7~1.0 ℃/min

10. Heating rate: 1.0~3.0 ℃/min

11. Time setting range: 1~9999H

12. Humidity fluctuation range: 40~98% RH

stayConstant temperaturewetIn the laboratory field, Nanjing Expansion Technology Co., Ltd. has achieved brilliant achievements with rich experience. With the increasingly strict requirements for quality control and the growing demand for constant temperature and humidity environments, the application fields are also becoming wider. Constant temperature and humidity test room/Constant temperature and humidity test chamber/Walk in constant temperature and humidity test room/Walk in constant temperature and humidity test chamber

1. Laboratory decoration: strict insulation and moisture insulation performance is required. It is recommended to use color steel composite panels for the four facades of the laboratory, and PE insulation panels for insulation and moisture insulation treatment for the top and bottom surfaces; For perspective windows, it is required to use double-layer vacuum glass windows.

2. Laboratory air conditioning: Laboratory air conditioning is the heart of temperature and humidity control, requiring high precision and low failure rate. So it is necessary to require the air conditioner to be able to adjust the cooling capacity. There are already two ways on the market: one ischangefrequencyAdjustment; Another way is to regulate chilled water. Variable frequency regulation: In fact, it is to change the power of the compressor by changing the nature of the power supply, so that the compressor can achieve low load operation or overload operation, while adjusting the throttling capacity of the refrigeration system. Therefore, it is necessary to add a lot of complicated links, and each link must be well matched, otherwise faults will occur. The reality is indeed like this, with a very high failure rate, represented by the brand "Yodon". Chilled water unit: Using cold water at around 7 ℃ as the cooling source, the water flow is controlled by opening or closing an electric valve to easily control the cooling capacity. The electric valve structure is as simple as a household faucet, so the failure rate is almost zero and the control effect is stable. By reasonably calculating the heat and humidity load and air dew point of the room to match the air volume, cooling capacity, heating capacity, and humidification capacity, and controlling the stepless regulation of each component through PLC, and selecting sensors with high sensitivity and good linearity, it is possible to achieve temperature within ± 0.1 ℃ and humidity within ± 1%. This method requires calculation and matching based on the actual area and load of each laboratory, so there are no standard forming units, and they are all customized processing types. Generally, a combination of air conditioning units is used to achieve the combination ratio, so the disadvantage is that it occupies a large area.

3. The ventilation method has gone through several historical stages, from the initial bottom air outlet, to the upper natural air supply, to the upper diffuser air supply, and now to the advanced upper air duct+microporous ceiling air supply, and lower floor return air method. The entire laboratory air supply is soft and uniform, and the temperature and humidity control is very stable.

4. The function of the fresh air system is to provide physiological fresh air for the staff, and it is also essential for the stable determination of laboratory temperature and humidity. In order to protect the laboratory from external interference, it is necessary to provide fresh air to the laboratory to maintain a positive air pressure, so that external air cannot enter the laboratory and ensure the stable temperature and humidity throughout the year.

With a wide temperature and humidity control range, it can meet various needs of users. Adopting a unique balanced temperature and humidity control method, it can achieve safety and precisionThe temperature and humidity environment. It has stable and balanced heating and humidification performance, and can achieve high-precision and highly stable temperature and humidity control.

Equipped with high-precision intelligent temperature regulators, the temperature and humidity are controlled by a full LCD display 7751 programmable instrument (the Japanese OYO LCD display 5461 programmable instrument can also be replaced according to user needs). Optional temperature and humidity recorder.

According to functional requirements, a computer can be optionally equipped for remote control.

Automatic selection of refrigeration circuit, the automatic control device has the performance of automatically selecting and operating the refrigeration circuit according to the set value of temperature, realizing direct start of the refrigeration machine and direct cooling under high temperature conditions.

The inner door is equipped with a large observation window, which facilitates the observation of the test status of the test sample.

Equipped with advanced safety protection devices such as residual current circuit breakers, over temperature protectors, phase loss protectors, and water cut-off protectors.