Haotian SM series constant temperature and humidity testing machine direct sales manufacturer

The constant temperature and humidity test chamber, also known as the constant temperature and humidity testing machine, constant temperature and humidity test chamber, programmable wet heat alternating test chamber, constant temperature machine or constant temperature and humidity chamber, is a device used to test the performance of materials in various environments and to test the heat resistance, cold resistance, dry resistance, and moisture resistance of various materials. Suitable for quality testing of electronic, electrical, mobile phone, communication, instrument, vehicle, plastic products, metal, food, chemical, building materials, medical, aerospace and other products. Haotian SM series constant temperature and humidity testing machine direct sales manufacturer

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

The large observation window is equipped with lighting to keep the inside of the box bright, and double-layer glass is used to provide clear observation of the situation inside the box at all times. Equipped with an independent temperature limit alarm system, it automatically interrupts when the temperature limit is exceeded, ensuring the safe operation of the experiment without any accidents. The left side of the desktop constant temperature and humidity test chamber is equipped with a 50mm diameter test hole, which can be used for external testing power or signal lines. The bottom of the machine adopts high-quality fixed PU movable wheels.

Additional functions:

Fault alarm and cause, processing prompt function

A fail-safe mechanism

Upper and lower temperature protection function

Calendar timing function (automatic start and automatic stop operation)

Self diagnostic function

The test chamber adopts an imported temperature and humidity controller with high-precision P.I.D control to prevent long-term unstable operation; Humidity is controlled through intuitive display, eliminating the shortcomings of the original temperature and humidity comparison

display resolution

Temperature: 0.1 ℃ (display range)

Time: 0.1min

Humidity: 0.1% RH (temperature and humidity testing equipment)

Temperature sensor: PT100 platinum resistance thermometer

Control mode: Thermal balance temperature and humidity control mode

Temperature and humidity control adopts P I. D+S.S.R system coordinated control on the same channel

Equipped with automatic calculation function, it can immediately correct the temperature and humidity change conditions, making temperature and humidity control more accurate and stable

Supplementary functions

Fault alarm and cause, processing prompt function

A fail-safe mechanism

Calendar timing function (automatic start and automatic stop operation)

Self diagnostic function

refrigeration system

1. System concept: This type of laboratory adopts the industry's leading temperature balance technology (cooling without heating), which uses energy regulation technology to balance temperature control without the need for additional heating during cooling and low-temperature balance. Energy regulation technology, also known as PID control, regulates the flow rate of refrigerant by adjusting the quality of refrigerant entering the evaporator per unit time to achieve precise control of refrigeration power and temperature in the laboratory.

Compared to the previous "balanced temperature control method" of heating and cooling at the same time, the energy consumption is very high. The use of this technology can significantly reduce customers' operating costs and extend the lifespan of compressors to the greatest extent possible. It can save users a considerable amount of electricity expenses during the product lifecycle (depending on the actual frequency of use by customers)

3. Refrigeration hardware: The refrigeration cycle system is composed of "Taikang" fully enclosed compressors.

4. Refrigerant: Environmentally friendly refrigerant R404a is used, R23。

5. Refrigeration evaporator: A corrugated fin refrigeration evaporator is used, located in the air duct interlayer at one end of the test chamber, and is forced to ventilate by a blower motor for rapid heat exchange.

6. Auxiliary components: Other auxiliary components in the refrigeration system of this test chamber, such as solenoid valves, filters, etc., are also imported by our company; If using Italian CAS solenoid valves, bypass valves, globe valves, etc., other accessories are also selected from well-known domestic brands of refrigeration accessories.

7. Low temperature pipeline: The low-temperature pipeline adopts high-quality oxygen free copper pipes and nitrogen filled welding (traditional methods use ordinary copper pipes, and direct welding methods can easily cause oxides to form on the inner wall of the copper pipes, causing blockage of the refrigeration system and preventing or slowing down the cooling of the test chamber)

8. There is a condensate drain tray at the bottom of the refrigeration system and it is discharged outside the box.

9. Vibration reduction: Adopt compressor rubber pads or spring vibration reduction measures; The refrigeration system pipeline adopts the method of adding R and elbows to avoid the deformation of copper pipes caused by vibration and temperature changes, which may cause the refrigeration system pipeline to rupture.

10. Noise reduction: Special wave shaped sound-absorbing sponge is used for sound absorption.