HUDA high-low temperature rapid change testing machine QD-E708-1000K60-X10

Overview

This laboratory can be used to determine the adaptability of electronic products, automobile parts, materials, etc. to use and storage under conditions of high humidity, low humidity, constant humidity and heat, rapid alternating cycles of high-low temperatures, and humidity and heat that produce condensation on the surface.

This testing machine adopts the latest reasonable structure and stable and reliable control method, making it beautiful in appearance, easy to operate, safe, and with high precision in temperature and humidity control. It is ideal for rapid temperature change tests, constant temperature and humidity tests, and alternating humidity and heat tests. professional equipment.

Product advantages

1. Utilize a multi-channel, environmentally friendly and energy-saving (low noise) mechanical compression refrigeration system.

All materials, parts, components, raw materials, etc. of this equipment are made of environmentally friendly products, whether domestic (CN) or imported. According to the characteristics of mechanical compression refrigeration, a two-stage multi-channel main bypass system is adopted. The multi-channel main circuit and bypass can be used according to different tasks. The condition adaptive selection is enabled, and the entire control is automatically realized by the intelligent control system according to the Operating Conditions, changing the traditional way of using a thermostat to control the heater to offset the cooling capacity to control the cooling capacity. In order to achieve the effect of energy saving, not only the energy consumption accounts for only 80% of similar products. It also reduces the operating load of the refrigeration compressor, reduces equipment vibration and noise, and improves control accuracy. In order to better achieve energy-saving effects, frequency conversion technology is also used to adapt the refrigeration output of the refrigeration compressor to various temperature change rate requirements in the laboratory, while controlling the power loss to achieve energy-saving effects. Use sound absorption and silencing methods in different places throughout the structure and during mechanical work to reduce the noise of the entire equipment.

2. Self-developed multi-channel and multi-level throttling system (refrigeration system).

The refrigeration system of this equipment is designed with different main capillary paths and bypasses according to different Operating Conditions of the system. It is automatically controlled according to the Operating Conditions through the Zhitong control system, and the automatically adjusted capillary throttling system ensures that the flow size is adjustable and achieves the purpose of temperature change. , and the temperature field changes uniformly, with minimal temperature fluctuations.

3. Apply the broadband pressure balance temperature regulation system to achieve rapid temperature control through the fast convergence PID adaptive algorithm.

The use of temperature adjustment chamber, static pressure chamber and forced air duct system of centrifugal fan blades ensures sufficient exchange of cold and heat and uniform air supply through the top orifice plate to each space of the studio (experimental area). To achieve temperature uniformity; in order to achieve rapid temperature convergence, our company cooperated with South Korea's Sanyuan Company to develop a dedicated PID adaptive algorithm suitable for our company. This control method continuously corrects the control according to the temperature situation during the control process. It achieves the control purpose of retracting the sword quickly, with small temperature overshoot and high stability.

4. Realize remote visual control.

The equipment is equipped with a human-machine management interface and a touch-mode automatic control system to achieve automatic control; at the same time, it can be connected to a remote computer for remote monitoring through the RS485 communication interface. Through the graphical interface, the entire system has simple and fast control and management, automatic fault prompts, graphical prompts for fault energy saving and solutions, and guides users to quickly troubleshoot.

Implementation standards

1. GB2423.1-2008/IEC6008-2-1-2007 Part 2: Test Method Test A: Low Temperature

2. GB/T 2423.2-2008 Part 2: Test Method Test B: High Temperature

3. GJB150.3A-2009 High Temperature Test Method

4. GJB150.4A-2009 Low temperature test method

5. GB2423.22-2008 Environmental testing of electrical and electronic products Part 2 Test Nb: Temperature change with specified temperature change rate

6. GBT 2424.5-2006 Performance confirmation of environmental testing Temperature Test Chamber for electrical and electronic products

7. GB/T 10589-2008 Technical conditions for low Temperature Test Chamber

8. GB/T2423.3-2008(IEC68-2-3) Test Ca: Constant damp heat test method

9. GJB150.9A-2009 Damp heat test method 

10.G/BT 2423.4-2008/IEC6008-2-30:2005 Test Db: Alternating moist heat method

11.GB/T5170.18-2005 Basic parameter verification method for environmental testing equipment for electrical and electronic products Temperature/humidity combined cycle testing equipment

12.GB/T10586-2006 Technical conditions of damp heat Test Chamber

13.GBT 2424.6-2006 Performance confirmation of temperature and Humidity Test Chamber for environmental testing of electrical and electronic products

14.GBT 2424.7-2006 Measurement of environmental Test Chambers for electrical and electronic products A and B (with load) Temperature Test Chambers

Structure and composition

Refrigeration system features

A. The entire system pipeline is subjected to a leak test with ventilation and pressure of 22kg.

B. The heating and cooling systems are completely independent.

C. It is equipped with the company's professional technical features to prevent high-temperature and high-pressure airflow from co-current cooling machine damage to the system.

D. All refrigeration system action programs are completely controlled by the microcomputer controller.

E. There is a water collecting pan at the bottom of the compressor, which can collect the condensation water caused by frost.

F. The compressor is equipped with a PTC temperature sensor. When the compressor is over-temperature, over-temperature protection is implemented.

G. The compressor is equipped with an oil pressure protector to protect the compressor oil pressure.

H. High-low pressure protection devices monitor the refrigerant pressure during the operation of the equipment. Once the refrigerant pressure is higher than the system's ultimate pressure or lower than the minimum pressure set by the system, an alarm will be issued immediately and the power will be cut off until troubleshooting.

I. The refrigeration system all uses imported brand accessories, with reliable quality and ensuring the stability of the system.

Screen display function

• Temperature and humidity setting (SV) actual (PV) value is directly displayed

• Can display execution program number, segment, remaining time and number of cycles, as well as running time display

• Program editing and graphic curve display

• Equipped with a separate program editing screen, each page can input 4 segments of temperature, humidity and time.

• Fixed point or program action status display

• Language conversion can switch Chinese/English

• 57 true color display screen

Program capacity and control functions

• Number of programs that can be used: Maximum 120 groups, one program can be composed of 1 to 100 segments

• Usable memory capacity: 1200 segments, commands can be executed repeatedly: each command can be executed up to 999 times

• The program slope setting can be set by the time axis, with functions such as editing, clearing, and inserting.

• Each program can be set to a maximum of 99 hours and 99 minutes, with a minimum of one minute. It can be set to be used in conjunction.

• Equipped with 4 sets of time signal output control (can control the ON/OFF action of the object under test)

• Has 9 sets of PID parameter settings

• It has segment skip and hold functions during program execution.

• The backlight of the screen can be adjusted and the backlight time can be set

• The screen display protection function can be set to be turned off at a scheduled time or manually.

• Program copying, COPY, connection function, editing experiment title and other program editing functions

• PID automatic calculation and FUZZY control function

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

• With scheduled startup and shutdown functions

• With date and time adjustment function

• Button and screen lock (LOCK) function

Installation site requirements

The ground is flat, well ventilated, and does not contain flammable, explosive, corrosive gases and dust; there are no strong electromagnetic radiation sources nearby;

Site ground load-bearing capacity: not less than 600kg/m2;

Leave adequate maintenance space around the equipment.

A: Not less than 400mm

B: Not less than 400mm

C: Not less than 1000mm

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[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.