EMC tests



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Emissions tests

Performs tests to determine the frequencies and levels of unwanted electromagnetic radiated emissions from an EUT (enclosure) and conducted emissions into the power supply lines.

Anechoic chamber for EMC emissions
Screened room

Test specifications:
1) for Consumer, Industrial, Medical, and Railway electronics equipment/devices:
Tests Standards Specifications
Radiated emissions CISPR 11/22/32, FCC 15B, VCCI requency range 9 kHz to 40 GHz
Conducted emissions - Power lines (AMN) CISPR 11/22/32, FCC 15B, VCCI Frequency range 9 kHz to 30 MHz
Rating 250 VDC, 32 A
250 VAC, 32 A, 1 φ
250 VAC, 32 A, 3 φ
Conducted emissions - Signal lines (ISN, Current Probe) CISPR 22/32, VCCI Frequency range 150 kHz to 30 MHz
Rating 100 VDC, 0.2 A
Disturbance power CISPR 14-1 Frequency range 30 MHz to 300 MHz
Harmonic current emissions IEC 61000-3-2 Rating 230 VAC, 16 A, 1 φ
230 VAC, 16 A, 3 φ
Voltage fluctuations and flicker IEC 61000-3-3 Rating 230 VAC, 16 A, 1 φ
230 VAC, 16 A, 3 φ
Human exposure to EM fields EN 62311 requency range 1 Hz to 50 GHz
2) for Automotive electronics equipment/devices:
Tests Standards Specifications
Radiated emissions CISPR 25 8 GHz
Conducted emissions CISPR 25 150 MHz

Test facilities:
1) 10 m Anechoic Chamber (Labotech EMC Center)
Internal dimensions(D×W×H) 22.0 m x 14.0 m x 9.0 m
Entrance dimensions(W×H) 3.0 m x 3.0 m (flush, stepless entryways)
Measuring room dimensions(D×W×H) 6.8 m x 4.0 m x 2.7 m
Measuring room door dimensions(W×H) 1.2 m x 2.0 m (flush, stepless entryways)
Turntable Dia. 5.0 m/2.0 m dual type
Max. load 3 t/1 t
Measuring antenna height 1 m - 4 m
Frequency range 10 kHz - 18 GHz
Site attenuation (NSA) within ±3.0 dB
Power supply (CVCF) 100/115/220/230 VAC, 1φ/3φ, 50/60 Hz, 18 kVA, 50 A max.
0 - 282 VDC, 40 A max.
100 VAC, 1 φ, 60 Hz, 20 A max.
Additional services Water supply (hose nipple: GHN-0619, internal dia.: 19 mm);
Water-drainage;
Exhaust gas pipe;
Spectrum analyzer screen projector;
Underground pit (Cable entry from Turntable: 150 mm);
Cargo lift (max. load: 200kg);
Vertical ground plane for conducted emission measurements (2 m x 2 m);
Test table (Styrofoam, 1.5 m x 1 m, H=0.8 m, max load 200 kg);
Fork truck (450 kg);
Intercom (between chamber and measuring room);
Monitoring cameras.
2) 10 m Anechoic Chamber (Kishu Lab.)
Internal dimensions(D×W×H) 21.5 m x 13.5 m x 8.0 m
Entrance dimensions(W×H) 3.0 m x 3.0 m (flush, stepless entryways)
Measuring room dimensions(D×W×H) 8.9 m x 3.8 m x 3.5 m
Turntable Dia. 5.5 m / 2.0 m dual type
Max. load 3 t / 0.5 t
Frequency range 10 kHz - 6 GHz
Site attenuation (NSA) within ±4.0 dB
Power supply CVCF, 1 φ/3 φ, 40 kVA
Acoustics characteristics Semi-anechoic room complied with JIS Z 8732 / ISO 3745 requirements
Additional services Water supply/drainage: 2 sets;
Exhaust/intake air pipe: 2 sets;:
Exhaust gas pipe: 2 sets;
Spectrum analyzer screen projector;
Monitoring camera: 2 sets (fixed: 1, movable: 1);
Fork truck: 500 kg, 1 m x 1 m.
3) 3 m Anechoic Chamber (Nishinomiya-Hama Lab.)
Internal dimensions (D×W×H) 8.5 m × 6.0 m × 5.8 m
Entrance dimensions(W×H) 1.6 m × 2.0 m (sloped entryways)
Measuring room dimensions(D×W×H) 4.6 m × 2.6 m × 3.0 m
Measuring room door dimensions(W×H) 1.6 m × 2.0 m
Turntable Dia. 1.2 m
Max. load 300 kg
Measuring antenna height 1 m - 4 m
Frequency range 150 kHz - 2 GHz
Site attenuation (NSA) within ±4 dB
Power supply (CVCF) 100/115 VAC, 1 φ, 50/60 Hz, 2 kVA, 20 A max.
220/230 VAC, 1 φ, 50/60 Hz, 4 kVA, 20 A max.
220/230 VAC, 3 φ, 50/60 Hz, 6 kVA, 15 A max.
0 - 35 VDC, 30 A max.
Additional services Test table (Styrofoam, 1.5 m x 1 m,  H=0.8 m)
Vertical ground plane for conducted emission measurements (3 m x 2 m)
Monitoring camera: 1 (fixed)
Fork truck(300 kg, 1 m × 1 m)
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