CHINA 50L programmable constant temperature and humidity testing machine constant temperature and humidity machine -40~150 ℃

Programmable Constant Temperature & Humidity Test Chamber

Programmable, -40 ℃~ + 150 ℃, 20%~ 98% R.H, 50L, inner box size 350 * 300 * 500mm, suitable for testing electronics, electrical appliances, food, automobiles, rubber, plastic glue, metal and other products, meeting GB/T2423, GJB150A1/4

use

This constant temperature and humidity environment Test Chamber can simulate various temperature and humidity environments. It is mainly used as equipment to test the performance of materials in various environments and to test the heat resistance, cold resistance, dryness resistance, and moisture resistance of various materials. Suitable for quality testing of electronics, electrical appliances, communications, instruments, vehicles, plastic products, metals, food, chemicals, building materials, medical, aerospace and other products.

Control method: Using the Balanced Temperature and Humidity Control System (BTHC), the induction system transmits the actual data in the Test Chamber to the controller. The controller controls the SSR, multi-stage intelligent output, and balances the output power of the temperature and humidity system to ensure that the temperature and humidity in the Test Chamber are The temperature and humidity are fully stable, and it has an energy-saving function, which reduces the power usage of the instrument to a greater extent and ensures long-term accurate and stable operation of the instrument.

Technical features

1. The product has beautiful appearance, reasonable structure, precise technology, simple and convenient operation and stable and reliable performance.

2. The controller adopts a large color LCD human-machine touch dialogue LCD human-machine interface controller, which is simple to operate, easy to learn, stable and reliable, and displays complete system operating conditions, execution and setting program curves in Chinese and English, and can realize RS232 Computer interface docking, remote control of the instrument directly through the computer.

3. The refrigeration cycle system uses a compressor: an original imported Japanese "Sanyo" brand fully enclosed compressor (optional French Taikang compressor). All components are imported from Japan, France, the United States, Italy and other producing areas. Refrigeration The agent uses American environmentally friendly refrigerant (R23A, R404A).

4. There is a reserved test hole with a diameter of 50mm on the left side of the test box.

5. It has a fully automatic, high-precision system loop, any machine movement, PLC locking processing, all using PID automatic calculation control, and the temperature in the entire area has high precision and high stability.

6. Specially designed air circulation system and sensing system, the air outlet and return air sensor are detected and controlled to ensure the temperature uniformity in the Test Chamber and avoid any dead spots.

7. Adopt an enlarged observation window and 4 layers of tempered glass to provide a wider field of view.

8. The instrument has a comprehensive protection system, including power overload protection, leakage protection, control loop overload, short circuit protection, compressor protection, grounding protection, over-temperature protection, alarm audible prompts, etc. When any abnormal situation occurs, the fault will be automatically displayed on the screen immediately. Point out the reason and automatically shut down.

Temperature and humidity control range curve chart

Heating system

Multi-section heating tubes are used, combined with PID modules, to ensure temperature stability; segmented heating fully saves energy.

The heating tube is made of high temperature resistant and anti-corrosion alloy tube to extend its service life.

humidification system

The circular split humidifier avoids the freezing phenomenon that occurs with Water Tank humidifiers during low temperature testing.

The humidification tube is made of special alloy and can be dry-heated for more than 1 hour when the instrument fails and lacks water. With the high temperature alarm module, it effectively extends the service life of the humidification system. Built-in Water Tank and drawer-type water filling box are convenient and beautiful.

Equipped with water circulation system, saving 40% water.

It has a water quality filtration system to avoid clogging of the humidification system and reduce the frequency of cleaning.

Wind circulation system

1. High resistance wind circulation motor

2.Multi-wing fan blades

3. Specially designed fan forced air circulation system

Cooling System

Compressor: Original imported Japanese "Sanyo" brand fully enclosed compressor (optional French Taikang compressor)

Condenser: fin-type multi-section condenser with integral forced cooling fan

Evaporator: fin-type multi-stage automatic load capacity adjustment evaporator, combined with energy-saving regulating valve, to achieve forced refrigeration and constant temperature refrigeration segmented control

Refrigerant: The United States imports new environmentally friendly refrigerants R404A and R23A to achieve zero pollution to the environment.

Refrigeration Oil: American Ice Bear Refrigeration Oil

Filter dryer: Italian castor filter dryer

Solenoid valve: Japanese Lugong solenoid valve

Copper pipes: The pipes used in the refrigeration system are all made of imported copper material. Its advantages are good flexibility, not easy to break, and better shock-absorbing effect on the long-term vibration characteristics of the refrigeration system.

controller

• Imported 7-inch color touch screen display

• Touch screen direct button type (touch screen operation control)

• Temperature and humidity simultaneously programmable controller

• Chinese and English display

• High contrast large LCD display controller with adjustable backlight function.

• Accuracy: temperature ±0.1℃, humidity ±1%RH

• Resolution: temperature ±0.1, humidity ±0.1%RH

• With upper and lower limit standby and alarm functions

• Temperature and humidity input signal selection PT 100Ω×2 (dry bulb and wet bulb)

• 9 sets of PID control parameter settings, PID automatic calculation

• Dry and wet bulb automatic correction

• Temperature and humidity set (SV) and actual (PV) values ​​are directly displayed

• Can display the currently executing program number, segment, remaining time and number of cycles

• Operation accumulated time function

• The temperature and humidity program setting values ​​are displayed in a graphic curve, with the function of real-time display of program curve execution.

• Equipped with a separate program editing screen, at least 5 segments of temperature, humidity and time can be input on each page

• Chinese and English can be switched at will.

• The fault prompt screen is displayed.

• Screen backlight can be adjusted

• The screen display protection function can be scheduled or turned off manually.

• Usable program groups: Maximum 120 groups

• Usable memory capacity: 1200 parts in total

• Repeatable command execution: each command can be executed up to 999 times

• The program is created in a conversational style, with functions such as editing, clearing, and inserting.

• SEGMENTS time setting 0 ~ 99Hour59Min

• It has power-off program memory and can automatically start and resume program execution after power is restored.

fulfill the standard

The performance indicators comply with the requirements of GB5170, 2, 3, 5, 6-95 "High Temperature, Constant Humidity, and Alternating Humidity Test Equipment for Basic Parameter Verification Methods of Environmental Tests"

Environmental Test Procedure Test B: High Temperature Test Method GB 2423.2-89 (IEC68-2-2)

Environmental Test Regulations Test Ca: Constant Humidity and Heat Test Method GB/T 2423.3-93 (IEC68-2-3)

Environmental test regulations test Da: alternating damp heat test method GB/T423.4-93 (IEC68-2-30)

Packing list：machine X1, manual X1, certificate X1, warranty card X1

[Note]Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.