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Halt / Hass test chamber

Halt / Hass test chamber

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CSZ halt / Hass test chamber provides limited temperature change rate and multi axial vibration conditions, which can find the defects in product design and manufacturing process in a short time, so as to meet the requirements of product development, design and manufacturing stage.
 
 
Halt (high accelerated life test) and HASS (high accelerated stress screening) technology are used by a large number of manufacturing enterprises to improve the reliability of products. These enterprises come from electronics, computer, military, automobile, medical and other industries.
 

 
 
What is halt
 
Halt technology is very important to find the weak links in the process of new product development and production. It is a method to find and improve the weak links in the product design stage.
 
Generally, halt test includes the following five steps:
 
High temperature and low temperature step test
 
Rapid temperature cycling test
 
Vibration step test
 
Comprehensive environmental stress test (vibration + temperature cycle)
 
What is Hass
 
Hass technology is applied to the production stage to find the process defects, which may lead to the failure of products in the actual use process. Hass uses accelerated stresses (exceeding product specifications, as determined by previous halt tests) to detect product defects during manufacturing. In the past, after halt verification, many problems of products after process change were only considered as premature normal failure of products in use. Now, after the implementation of Hass screening, these product defects are found before delivery to customers.
 
2. The test chamber is designed by CSZ, and the shaking table is designed by Dr. Gregg Hobbs, the inventor of halt & Hass technology. Both of them jointly manufacture a box with temperature range and vibration dynamic capability in the industry, which is used to effectively stimulate and detect product defects.
 
CSZ's time compressor TM series is a test chamber for the implementation of halt & Hass cutting-edge technology. The system is used to expose products to multi axial broadband vibration and rapid temperature cycling conditions. CSZ's halt & Hass test chamber has the industry performance, up to 90 ℃ / min limit temperature rate and less than 3 GRMS to 90 GRMS wide vibration acceleration range. In addition, the unique design of the shaking table also realizes the excellent balance of X, y, Z three axial vibration acceleration.
 
There are four kinds of standard halt & Hass boxes with different sizes, which can be taken from the front door and back door, and the large size box can also be taken from the double door.
 
Excellent reliability and temperature performance
 
The observation window on the door is equipped with defrosting function, and has a interlock lock safety switch to prevent the system from opening the door
 
The air duct can be freely oriented for directional supply
 
Greatly improved high and low vibration acceleration limits (low acceleration is necessary for defect detection)
 
The cable hole is located at the front or side to facilitate the layout of test cables.
 
Low noise operation
 
Low liquid nitrogen and power consumption, higher return on investment


 
Features and options
 
Vibration
 
The dynamic range of the pneumatic table is large. The number of pneumatic hammers is 4 ~ 13 according to the model. The acceleration range of the table is less than 3grms to 90grms under no-load condition. The high acceleration value is used to enhance the excitation failure, while the low acceleration produced by the modular excitation technology can help to detect the failure.
 
There is a membrane on the table to protect the vibration mechanical parts.
 
control
 
The test program of ezt-570i controller can be called directly.
 
The system is equipped with mechanical fixed value over temperature protector and user adjustable electronic limit value protector to prevent over high and low temperature as well as ultra-high acceleration value, which is the safety protection for product redundancy.
 
The safety relay is configured to protect the product under test, and the power supply of the test product is disconnected when the test box stops running.
 
 
communication
 
It supports RS-232 / 485 serial port and networking protocol, which can be selected to realize remote control / monitoring.
 
EZ view software can write test program, control, monitor and record data for many devices from remote computer.
 
 

 
model TC-1.5   TC-2.0 TC-2.5 TC-4.0  
                 
temperature range     -100 ° C to + 200 ° C    
                 
Temperature change rate >80 ° C per minute   >80 ° C per minute   >90 ° C per minute   >80 ° C per minute  
         
                 
Acceleration range     <3 - 90 GRMS     <3 - 80 GRMS  
                 
Table size (CM) 18” x 18”   24” x 24”   30” x 30”   48” x 48”  
         
  (46cm x 46cm)   (61cm x 61 cm)   (76cm x 76cm)   (122cm x 122cm)  
                 
Interior space 30” x 30” x 30”   30” x 30” x 30”   34” x 34” x 34”   58” x 58” x 54”  
W X D X H in (cm) (76 x 76 x 76)   (76 x 76 x 76)   (86 x 86 x 86)   (147 x 147 x 137)  
                 
Dimensions 62” x 41” x 80”   62” x 41” x 80”   65” x 48” x 84”   86” x 71” x 102”  
W X D X H in (cm) (157 x 104 x 203)   (157 x 104 x 203)   (165 x 122 x 213)   (218 x 180 x 260)  
                 
Running noise* 70 dBA   70 dBA   72 dBA   76 dBA  
                   

 
*When the acceleration is 30 GRMS, it is measured 1 m away from the box.

 
 
Halt & Hass test box options
 
Power spectrum analysis data acquisition
 
The option can monitor the acceleration and power spectrum of test products, and also can realize the power spectrum ~ frequency curve. Options include signal input module, signal analysis software and supporting computer connecting line.

Ezt temperature and acceleration monitoring package
 
Four thermocouple temperature sensors and two acceleration sensors are used to monitor the X and Y axial vibration.
 
User event output options
 
Including 15 channel event output, wiring board, pluggable connector. According to the requirements, turn on or off the power supply of the test product in different test procedures. In addition, the output channel can be configured to perform other functions, such as alarming or displaying program segment status.
 
Digital input options
 
There are 8 input channels and terminal blocks. These channels can be configured to perform different functions (run, pause, resume, or terminate the test program, segment fast forward, and control user event driven output).
 
Oxygen concentration monitoring alarm
 
It can be connected to the electric control system of the box, alarm when the oxygen concentration is low, and close the liquid nitrogen solenoid valve.
 
NEMA 4x wall mount with backup battery, power supply is required for normal use.
 
Air purge
 
At the end of the test, use compressed air to purge the residual nitrogen in the box. The air purge function can be programmed into the test program and executed automatically at the end of the program or manually on the controller. Tc-4 is equipped with this function as standard.

Maintenance spare parts package
 
Including acceleration sensor and its signal wire, thermocouple temperature sensor, spare air hammer, heating wire.
 
Maintenance toolbox
 
It contains a tool box, which can be easily stored in the equipment. The tool can be used to repair the equipment and dismantle the fixture.
 
Basic fixture package
 
It contains four through-hole aluminum square bars with screw rods, nuts and gaskets.

There are other options to choose from

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