Other tests

We determine whether the tested equipment has any impact on its surroundings or the equipment itself, and whether it can endure the impact of its environment. The corrosion resistance of materials is also tested.

  • Electromagnetic compatibility testing
  • Electric machine tests
  • Material tests
  • Noise measurement
  • Refrigeration compressor testing

EMC TESTS

Our specialist team provides electromagnetic compatibility (EMC) services, including:

  • Validation of your equipment and preparation for testing in an external certified test lab.
  • Measurement of the basic EMC parameters and implementation of necessary modifications to equipment to ensure compliance with stipulated certification parameters.
  • Testing equipment in an external certified test lab, including a test report, can also be arranged.

ELECTRIC MACHINE TESTS

We offer dynamometer measurements for motors and generators with a rated power of up to 25 kW.

  • Asynchronous and synchronous machines
  • Insulation resistance measurement
  • Winding resistance measurement
  • Load characteristics
  • Warming test
  • Empty measurement
  • Moment characteristic
  • Short measurement
  • Calculation of losses from empty measurement
  • Calculation of efficiency from load characteristics
  • Lifetime tests, sequence up to 20 points

MATERIAL TESTS

Corrosion resistance testing is performed according to ISO, DIN, ASTM, CASS, and SWAAT standards, including assessment using optical microscopy methods.

The testing space volume in corrosion chambers is up to 1 m3. Chamber Liebisch (L1300 x W800 x H550 mm) and chamber Weis (L1560 x W510 x H740 mm). 

We also offer UV resistance tests in chamber size (L460 x W530 x H420 mm).

NOISE MEASUREMENT

  • Acoustic noise level measurement in the range: 20 Hz to 20 kHz.
  • Noise intensity measurement.
  • Acoustic power measurement in the range: 50 Hz to 6300 Hz.
  • Identification of noise and vibration sources.
  • Anti-noise measures and proposals for reducing vibration.

REFRIGERATION COMPRESSOR TESTING

The test lab has three areas for testing compressor performance using conventional or alternative coolants, including supercritical CO2 with a maximum output of 70 kW.

The test lab also has seven chambers for stress and lifespan testing of compressors with outputs up to a maximum 10 kW.

EMC MEASUREMENT

We carry out wide variety of EMC testing. If necessary, we can provide expertise on how to modify the equipment in order to make it compliant with mandatory standards. We focus on pre-compliance and development testing and provide our customers with high confidence of passing certification tests.

  • Radiated emissions – Automotive, Industrial & Rail
    • 9 kHz to 2 GHz
    • Rod, Biconical and Logaritmic antennas
    • UNECE R10, CISRP 25, EN 55011,EN 50121-3-2
  • Conducted emissions – Automotive
    • Up to 600 V DC, 100 A, 100 kHz to 200 MHz
    • CISPR 25
  • Conducted emissions – Industrial & Rail
    • 3x 400 V, 50 A, 10 kHz to 80 MHz
    • 1x 230 V, 16 A, 10 kHz to 30 MHz
    • EN 55011, EN 50121-3-2
  • Immunity – Automotive
    • Fast & slow transients 80 V, 100 A
    • Load dump: 60 V, 200 A
    • Bulk current injection: 100 kHz to 400 MHz
    • ISO 7637, ISO 16750-2, ISO 11452-4, SAE-1113-11, LV 124, LV 148, VDA 320
  • Immunity – Industrial & Rail
    • Up to 3x 480 V, 63 A
    • Burst up to 5 kV
    • Surge up to 8 kV
    • RF fields 150 kHz to 80 MHz
    • EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 50121-3-2
  • ESD – Automotive, Industrial & Rail
    • Up to +/- 30 kV
    • RC modules 150/330 pF, 300/2000 Ω
    • ISO 10605, EN 61000-4-2, EN 50121-3-2

ELECTRIC MACHINE TESTS

We offer dynamometer measurements for engines and generators with a rated power of up to 25 kW.

  • Harmonic voltage supply for 230 V (105 A), 400 V (55 A) and 690 V (35 A), 50 Hz and 60 Hz engines, rated output 25 kW
  • PWM output 3x 0-400 V, 73 A, 0 Hz-550 Hz
  • Secondary converter for small machines, power 4 kW, rated current 9.2 A

Technical parameters of the asynchronous dynamometer:

  • rated power 28 kW
  • nominal moment 198 Nm
  • rated speed 1350 min-1
  • direct torque measurement using the strain gauge shaft Kistler 4541A
  • adjustable table - shaft axis height 102-202 mm, test engine area 500x500 mm, up to 100 kg
  • measurement accuracy - torque 0.02 %, i.e. +/- 0.06 Nm; speed 0.00 5%, el.current 0.01 %

MATERIAL TESTS

  • Corrosion resistance testing according to ISO, DIN, ASTM, CASS and SWAAT standards including evaluation by optical microscopy methods.
    • chambers sizes (L1300 x W800 x H550 mm) and (L1560 x W510 x H740 mm)
  • UV resistance testing
    • chamber size (L460 x W530 x H420 mm)

NOISE MEASUREMENT AND ANALYSIS

  • Measurement of Sound pressure level from 20 Hz to 20 kHz according to ČSN ISO 3744,
  • Acoustic Power 50 Hz to 6300 Hz in free field, inside according to ČSN ISO 9614,
  • Acoustic power to duct system
  • Identification of sources of noise
  • Design of noise suppression measures (machines and equipment, means of transport etc.)

REFRIGERATION COMPRESSORS TEST LABS

  • CMP – Refrigeration Compressor Performance Test Labs
    • Traditional refrigerant (R134a, R407C, R410A, R452A)
      • Open shaft (500-6000 r.p.m.) or hermetic compressors
      • Performance ranges: 0,6 kW to 70 kW
    • Alternative refrigerant (R744, R1234yf, HFO1234yf)
      • Performance ranges: 2kW to 45 kW
      • Pressure range: 40 bar to 130 bar
  • Stability of the environment: according to EN 13771-1
  • CMP – Refrigeration Compressor Endurance Test Labs
    • Traditional refrigerant (R134a, R407C, R410A, R452A)
    • Performance ranges: 0,6 kW to 10 kW
    • Stability of the environment: according to compressors producers and internal company standards

The European Test Centre focuses on quality, environment, and safety, and is certified in accordance with the following standards:

EN ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

IATF 16949 (Quality Management System)
ISO 14001 (Environmental Management System)
ISO 45001 (Occupation Health and Safety Management System)

IRIS (The International Railway Industry Standard)
CTLA (Czech Testing Laboratories Association)
EUROLAB (European Federation of National Associations of Measurement, Testing and Analytical Laboratories)
ATP certification (The Agreement on the International Carriage of Perishable Foodstuffs)

ETC Prague is authorized by the Ministry of Transport of the Czech Republic to carry out the activities of the ATP and is included in the official UN list. For more detailed information about ATP tests, please visit the following web page: www.frcatp.cz/en/.

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ISO 45001_1
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Do you need assistance with testing?

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