Negative Pressure High Low Temperature Altitude Simulation Test Chamber
Altitude Test Chamber Applications:
Electrical,electronic,military industry and household products.According to GB,GJB and IEC standard,to do
high low temperature,humidity thermal,low pressure and other environmental and reliability test.
General introduction: This equipment is composed of test room formed by
pressure-containing box shell and insulation structure, refrigeration system, add wet
system,vacuum system and electric control system and other components.
precision instruments, and to a great extent electronics parts in general.
Altitude Test Chamber Features about structure:
1. Main box structure internal pressure structure
2. Control system of temperature and humidity: fan, heater, evaporator,h umidifier
3. Refrigeration mode: mechanical compression binary refrigeration system
4. Vacuum units: rotary vane vacuum pump
5. Control panel: temperature, humidity and pressure controlled display screen, over temperature
protection device, light switch.
Altitude Test Chamber Test Standard Satisfied:
GB/T2423.1-2001 test A: Low temperature test
GB/T2423.2-2001 test B: High temperature test
GB/T2423.21-2001 test M: Low pressure test
Altitude Test Chamber Specification:
| Model | SM-VTH-250-CC | SM-VTH-500-CC | SM-VTH-1000-CC | SM-VTH-2000-CC |
| Temperature | Temperature control range | -70℃～180℃ (A:0℃～180℃;B:-20℃～180℃；C:-40℃～180℃;D:-70℃～180℃) |
| Temperature fluctuation | ±0.5℃ |
| Cooling rate | 180.0℃～-70.0℃ Within 120mins (1.0～2.0℃/min) |
| Heating rate | -70.0℃～180.0℃ Within 100mins (2.0～3.0℃/min) |
| Temperature uniformity | ±1.5℃ (-40.0℃～100.0℃) |
| ±2.0℃ (100.1℃～180.0℃or-40.0℃～-70.0℃) |
| Pressure | Pressure range | Normal pressure～0.5kpa(500pa) |
| Pressure error | ±2kpa(>40kpa),±5%(2kpa～40kpa),±0.1kpa(<2kpa) |
| Depressurization time | Normal pressure～1kpa,about 30 mins； |
| Pressure recovery time | <10kpa/min |
| Humidity | Humidity control range | 20.0%RH～98.0%RH(work under atmospheric humidity) |
| Humidity fluctuation | ±2.0% RH |
| Humidity uniformity | ±5.0％RH |
Material /
components | Internal material | Adopt 2mm thickness stainless steel plate (SUS304) |
| External material | Adopt 10mm thickness cold rolled steel plate fully welded / powder sprayed |
| Heat insulating material | 100mm thickness polyurethane plate＋10mm thickness mineral wool |
| Fan | Centrifugal blower |
| Compressor | France Tecumseh, Germany Bock, Germany Bitzer |
| Condenser | Air cooling, water cooling |
| Refrigerant | R404A,R23,R508 |
| Evaporator | Fin - and - Tube Heat Exchanger |
| Heater | Nickel chromium alloy heating wire |
| Humidifier | Steam humidifier |
| Size | Inner size(mm) W*H*D | 550*600*700 | 700*800*900 | 1000*1000*1000 | 1400*1200*1200 |
| Outer size(mm) W*H*D | 2000*1060*1900 | 2500*1260*2050 | 2720*1460*2130 | 3150*1650*2050 |
| Volume(L) | 250L | 500L | 1000L | 2000L |
| Operating ambient temperature | +5 ~ 35℃ |
| Power supply | 380V AC 50/60Hz |
| Controller | SANWOOD SH5600:Equipped with RS232 port；(7.0 inch controller)USB data export |
