Environmental Tests

The following environmental tests have been performed on Epec 4602 control units:

 

Temperature

Test

Temperature

Duration/
Exposure time

Remarks

Cold  
IEC 60068-2-1 (2007-03),
Test Ad

-45 °C

16 h

  • 1 °C/min

Dry heat  
IEC 60068-2-2 (2007-07),
Test Bb

70 °C

16 h

  • 1 °C/min

Damp heat cyclic IEC 60068-2-30 (2005-08),
Test Db

+25 °C/+55 °C

 

  • rel. humidity > 90%

  • cycle duration 24h

  • six test cycles

Change of temperature IEC 60068-2-14 (2009-01),
Test Na

-50 °C/+60 °C

3 h

  • change time between extreme temperatures 1-2 min

  • 5 test cycles

Change of temperature IEC 60068-2-14 (2009-01),
Test Nb

-40 °C/+70 °C

3 h

  • change of temperature 10 °C/min

  • 2 test cycles

Mechanical resistance

Test

Duration and direction

Remark

Shock test IEC 60068-2-27 (2008-02) Test Ea

  • pulse duration 6 ms

  • 500 impulses in every six directions

  • half sine pulse shape

  • peak acceleration 500 m/s2

 

Shock test IEC 60068-2-27 (2008-02) Test Ea

  • pulse duration 4 ms

  • 100 impulses in two directions

 

  • half sine pulse shape

  • peak acceleration 750 m/s2 and 1000 m/s2  

 

Vibration, random
IEC 60068-2-64 (2008-04),
Test Fh

  • test duration 60 min in every three test axes

  • frequency range 10...500 Hz

  • ASD-level 5 m2/s3, 10 … 200 Hz

  • ASD-level 1,0 m2/s3, 200 … 500 Hz

  • total spectral acceleration 3,54 grms

 

Vibration, random
IEC 60068-2-64 (2008-04),
Test Fh

  • test duration 10 min in one test axis at each level

  • frequency range 10...500 Hz

  • ASD-level 0,1 g²/Hz (10,0 m2/s3), 10...200 Hz

  • ASD-level 0,02 g²/Hz (2,0 m2/s3), 200...500 Hz, 5,00 grms (50 m/s2)

  • ASD-level 0,2 g²/Hz (20,0 m2/s3), 10...200 Hz

  • ASD-level 0,04 g²/Hz (4,0 m2/s3), 200...500 Hz, 7,05 grms (70,5 m/s2)

  • ASD-level 0,4 g²/Hz (40,0 m2/s3), 10...200 Hz

  • ASD-level 0,08 g²/Hz (8,0 m2/s3), 200...500 Hz, 9,96 grms (99,6 m/s2)

  • ASD-level 0,8 g²/Hz (80,0 m2/s3), 10...200 Hz

  • ASD-level 0,16 g²/Hz (16,0 m2/s3), 200...500 Hz, 14,08 grms (140,8 m/s2)

  • ASD-level 1,45 g²/Hz (145,0 m2/s3), 10...200 Hz

  • ASD-level 0,29 g²/Hz (29,0 m2/s3), 200...500 Hz, 19,04 grms (190,4 m/s2)

 

Free fall,
IEC 60068-2-31 (2008-05),
Test Ec

  • one fall / direction
    on each surface and corner

  • fall height 100 cm

Corrosion

Test

Temperature

Duration

Concentration

Salt spray test
ISO 9227

+35 °C

24 h

5 % NaCl

Tightness tests for IP67

Test

Duration and prosedure

Remark

Dust test for IP6X according to IEC 60529

  • exposed to the free settling dust for 8 hours

  • under pressure during the test 2 kPa

  • flow rate of the air 0,1 l/min

  • no deposit of dust noticed inside

  • complies with the requirements stated for the protection class IP6X

Water test for IPX7 according to IEC 60529

  • immersion duration 30 minutes

  • immersion depth 1000 mm

  •  water temperature +22 °C

  • no ingress of water noticed inside

  • complies with the requirements stated for the protection class IPX7