SAE-J1211 335L Stress Screening Environmental Test Chambers

Test Space

335L

Internal size

800*650*650mm(W×D×H)

External size

1800mm*2500mm*2300mm (W*D*H)

Power supply

AC380V±10%,50Hz±1 four wire three phase+ earth wire(3/N/PE),Earthing resistance＜4Ω

Max. Power

65KW

Max. Currency

110A

Cooling Method

Water-Cooled

System structure

Three part structure:immobile independent test area.Preheating area. Precooling area

Installation Site

• No strong electromagnetic radiation source nearby
• Close to drainage system ( within 2 meters to  refrigeration unit,for condensate water)
• The ground bearing capacity not less than 20000kg/m2
• Prepare proper power supply and water supply
• If need water or gas supply, should be equipped with in advance
• Ambient Temp: 5℃~25℃suggested, 25℃~35℃ function well;(for air-cooled model);5℃～40℃ function well (for water-cooled model)
• Ambient Humid:≤85%RH；
• Ambient Pressure:86KPa～106KPa;
• Installation space assurances, as following

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Cooling water

Water Temp:5℃≤Water Temp≤28℃ reach all technical index, 28℃<Water Temp≤33℃ function well(cooling time will change);

Water source Temp ≤10℃,need to prevent condensate water arise

1:If test chamber adopt air-cooled,no need cooling water

2: If user need build cooling cycle water system, cooling tower specification≥15 ton or condensing unit refrigerating capacity≥40KW(20℃)

3:Cooling water system should be GB50050-1995 industrial cycling cooling water treatment design regulation standard

Water flow:≥15 ton/h

Pipe diameter:G2.5 inches ×2

hydraulic pressure:0.3MPa～0.6MPa

Hydraulic Pressure Difference:≥0.2MPa

Water quality requirement:GB50050-1995

Air compression

Compressed air supply pressure:0.6MPa～0.7MPa 

              Humidity of compressed air under Pneumatic use:≤30g/m³

         Humidity of compressed air under dry air use:≤1.5g/m³

Working chamber temp shock test parameter

Thermal Shock Test Chambers--S2:

• Low-temp shock range:﹣55℃～﹣10℃
• High-temp shock range:+60℃～+150℃

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Low-High+Room Temperature Shock Test Chamber-S3:

• Low-temp shock range:﹣65℃～﹣10℃
• High-temp shock range: +60℃～+150℃
• PAMP Environmental Stress Screening
• Low Temp. Range:﹣55℃～﹣10℃
• High Temp. Range: +60℃～+125℃
• Temp. Gradient:3～30℃/min
• Temp. Fluctuation:±0.1℃～±1.0℃
• Temp. Uniformity:±0.5℃～±2.0℃
• Temp Deviation:＜±2℃

Note:

1.Testing with no load, meeting GB/T5170-2008, if no other special notice.

2.Temp. range in 0℃～+60℃, setting Shock temp. and RAMP Environmental Stress Screening function are disapprove.

3. Air cooled test chamber test data at Ambient Temp. 25℃, good ventilation condition;35℃≥RT＞25℃ function well; low temp range, cooling rate and thermal load capacity will be affected by the changeable environment temperature.

4.Water cooled test chamber test data at water temp ≤28℃, Hydraulic pressure 0.3MPa～0.6Mpa, Hydraulic Pressure Difference≥0.2Mpa

Preheat temp.

Temp. SV: +50℃～+220℃

Temp rise time: RT→＋220℃ 50min

Precool temp.

Temp. PV:﹣75℃～+70℃ 

Temp. reduction time: RT-75℃ 60min

Temp. recovery time

＜15min(measure in air outlet)

Test standard

                           Experiment standard-S2:

                           GB/T2423.22

                           MIL STD 202F, method 107G

                           IEC 60068-2-14, Test Na

                           BS 2011

                           DIN 40046, Test Na

                          JESD22-A101-A

                           Experiment standard-S3:

                             GJB 150.5-1986

                             MIL STD 883H

                             MIL STD 202G

                             IEC 60068-2-14

                             JIS C 60068-2-14

                             JASO D 014–4

                             EIA JED-2531A

                                                   Environmental Stress Screening Test Standard:

                                                   IEC 60749-25(JESD22-A104D)

                                                   IEC 60068-2-14NB(JIS C0025NB)

                                                   IEC 61747-5(EIA JED-2531A)

                                                   JESD22-A105-B

                                                   IPC-9701

                                                   SAE-J1211