Product Details:
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High Temp. Exposure Range*1: | +60~ To +200°C | Pre-cool Lower Limit: | -65°C |
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Test Area Material: | SUS304 Stainless Steel | Air Circulator: | Sirocco Fan |
Power Supply: | AC380V, 50/60Hz, Three Phase , 30A | Cooling Water Supply Pressure*6: | 02~0.4Mpa |
High Light: | environmental testing equipment,environmental test chamber |
Three Zone High Low Temperature Thermal Shock Chamber Shock Simulate Test Chamber
1. Description:
Three-Zone High and Low Temperature Shock Simulate Test Chamber that subjects a product to alternating extremes of high and low temperatures in order to observe changes in product characteristics and failure occurrence caused by different materials and their thermal expansion coefficients. Thermal shock chamber utilizes controlled areas for hot, ambient and cold temperatures. The product is moved from ambient to hot or ambient to cold zones. The chamber can be programmed to include a dwell period in the ambient zone if desired.It is applicable to metals, plastic, rubber, electronics amongst other materials. The test result can be Used as a reference or basis for product improvement.
2. Specifications of Three-Zone High and Low Temperature Shock Simulate Chamber:
System |
Two-zone test by means of damper switching |
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Three-zone chamber |
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Model |
HD-E703-50A/HD-E703-50W |
HD-E703-100A/HD-E703-100W |
Customized |
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Performance |
Test area |
High temp. exposure range*1 |
+60~ to +200°C |
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Low temp. exposure range*1 |
-65to 0 °C |
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Temp. fluctuation *2 |
±1.8°C |
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Hot chamber |
Pre-heat upper limit |
+200°C |
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Temp. heat up time*3 |
Ambient temp. to +200°C within 30min |
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Cold chamber |
Pre-cool lower limit |
-65°C |
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Temp. pull down time*3 |
Ambient temp. to -65°C within 70min |
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Temp. recovery (2-zone) |
Recovery conditions |
Two-zone: High temp. exposure +125°C 30 min, Low temp. exposure -40°C 30 min; Specimen 6.5 kg (specimen basket 1.5kg) |
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Temp. recovery time |
Within 10 min. |
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Construction |
External material |
Cold-rolled rust-proofed steel plate |
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Test area material |
SUS304 stainless steel |
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Door*4 |
Manually operated door with unlock button |
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Heater |
Strip wire heater |
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Refrigeration unit |
System*5 |
Mechanical cascade refrigeration system |
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Compressor |
Hermetically sealed scroll compressor |
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Expansion mechanism |
Electronic expansion valve |
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Refrigerant |
High temp side:R404A, Low temp side R23 |
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Cooler |
Stainless steel welded plate heat exchanger |
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Air circulator |
Sirocco fan |
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Damper driving unit |
Air cylinder |
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Fittings |
Cable port with diameter 100mm on the left side (right side and tailor made diameter size are available as options), specimen power supply control terminal |
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Inside dimensions (W x H x D) |
350 x 400 x 350 |
500 x 450 x 450 |
Customized |
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Test area capacity |
50L |
100L |
Customized |
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Test area load |
5 kg |
10 kg |
Customized |
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Outside dimensions (W x H x D) |
1230 x 1830 x 1270 |
1380 x 1980 x 1370 |
Customized |
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Weight |
800kg |
1100kg |
N/A |
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Utility requirements
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Allowable ambient conditions |
+5~30°C |
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Power supply |
AC380V, 50/60Hz, three phase , 30A |
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Cooling water supply pressure*6 |
02~0.4Mpa |
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Cooling water supply rate*6 |
8m³ /h |
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Operating cooling water temp. range |
+18 to 23 °C |
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Noise Level |
70 dB or lower |
Notes
1) If the high-temp exposure range lower limit + 60°C is required or the low temp exposure range lower limit -60°C, please select the “ambient-temperature exposure” option
2) If the temp fluctuation need to below ±1.8°C please select the “Low temp fluctuation package”
3)Temperature heat-up/pull down time are applicable only during independent chamber operation
4)If the automatically operated sliding door required, please select the “Automatically door package”
5) Air-cooled condenser / Water-cooled condenser both available
6)Apply on water-cooled condenser only
3. Safety Devices of Three-Zone High and Low Temperature Shock Simulate Chamber:
Control
Operation and settings simplified by the use of a touch-screen LCD display (instructions displayed on-screen). At-aglance confirmation of test patterns, test area temperatures, temperature cycles, and trend graph displays.
Setting |
Interactive key input by touch panel |
Display |
LCD (5.7 inches) |
Temperature control function |
Test area: exposure temp. Hot chamber: pre-heating temp. Cold chamber: pre-cooling temp. |
PID control |
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Preset temperature range |
High temperature: 60 to200’C Low temperature: -78 to 0’C |
Setting resolution |
1’C |
Input |
Thermocouple type T (Copper/Copper-Nickel) |
Setting and indication ranges |
Preset time: 0 min. to 99 hours and 59 min. Preset cycle: 1 to 9,999 cycles |
Accessory function |
Timer preset Overheat/ overcool protection Power failure/ recovery selection Temperature recovery time setting Program memory Automatic power shut-off Programmed time display Test completion mode selection Trend graph Alarm history display Sensor calibration RS-232/ USB communication |
Refrigeration operation principle
The level of the refrigeration cycle are used against the card if the cycle, which consists of two isothermal and two adiabatic processes, whose process is as follows: a refrigerant through the compressor adiabatic compression to a higher pressure, the power consumption of the exhaust gas temperature followed by the condenser refrigerant isothermal heat exchange medium in and around the heat to medium four weeks. After the refrigerant flows through the shutoff valve adiabatic expansion work, when the refrigerant temperature decreases. This loop again and again to achieve the purpose of cooling.
Air conditioning system
1) the air control: forced ventilation circulation, balance thermostat method (BTC). This method not only refers to the case of the cooling system for continuous operation, the control system according to the temperature set point of the heater to control the output of the results by automatically calculating PID output, and ultimately achieve a dynamic equilibrium.
2)air circulating means: built between the air circulation fan duct and the long axis of stainless steel, the use of energy efficient refrigerators and regulation system, by effective and efficient heat exchange ventilator, to achieve the purpose of the temperature change. By adjustable air outlet adjusting bolt, thereby significantly improving the chamber temperature uniformity;
3) the air cooling method: multi-stage diaphragm air heat exchanger.
4) air heating: Watkins quality nickel chrome electric heater.
Thermal Shock Chambers maintenance actions
1) a reasonable choice of installation location to install measures: dry, non-drip of rain and snow place.
2) inspection measures qualified by hand daily for insulation materials is broken steam pipe is blocked for technical confirmation and disposal technology.
3) the alarm can be installed as conditional steam leak or power-off state of alarm sound and light small device to facilitate the holding of risk freezing measures discovery and timely remediation.
4) instrument maintenance inspection measures by the area responsible for regular inspection by a predetermined inspection route. To check the insulation inspection of pipeline valve is normal, the incubator is normal, hydrophobic means is normal, thermal insulation material packaging is intact, electric heating power supply and other components is normal.
4. Three-Zone High and Low Temperature Shock Simulate Test Chamber view:
(The Test Chamber)
Contact Person: Kelly