Testing

Some of accredited test methods we provide are:

• Harmonic emission (EN 61000-3-2)
• Flicker emission (EN 61000-3-3)
• Immunity to Electrical Fast Transients / Burst (EFT/B) up to 4.8 kV (EN 61000-4-4)
• Immunity to Surge up to 6 kV (EN 61000-4-5)
• Dips, short interruptions and voltage variation immunity (EN 61000-4-11)
• Power frequency magnetic field immunity up to 40 A/m (EN 61000-4-8)
• Pulse magnetic field immunity up to 1000 A/m (EN 61000-4-9)
• Immunity to Electrostatic Discharge (ESD) up to 30 kV (EN 61000-4-2)
• Conducted RF emission 9 kHz - 30 MHz (EN 55022, EN 55032, EN 55016-2-1 or similar)
• Radiated RF emission 30 MHz - 2,7 GHz (EN 55022, EN 55032, EN 55016-2-3 or similar)
• Conducted RF immunity 150 kHz - 230 MHz up to 10 V (EN 61000-4-6)
• Immunity to radiated RF fields 80 MHz - 2,7 GHz up to 10 V/m (EN61000-4-3)
• On site EMC testing of machines and systems

Other preliminirary (pre-compliance) or final (full-compliace) tests we do:

• Radiated RF emission up to 12 GHz
• RF emission up to 20 GHz by conducted way
• Power disturbances 30 MHz - 1 GHz (EN 55016-2-2)
• Immunity to radiated RF fields 80 MHz - 2,7 GHz up to ~ 30 V/m
• Immunity to ring wave up to 6 kV (EN 61000-4-12)
• Troubleshooting of RF disturbances in electronic circuits, intra-system EMC analyses
• Interference testing, inter-system EMC analyses

EMC testing is according to various products’ standards for many prooduct groups:

• Information technology equipment (IT)
• Audio, video and multimedia equipment (MME)
• Industrial, scientific and medical RF equipment
• Electrical medical devices
• Household appliances, electric tools and similar apparatus
• Electrical lighting, LED, drivers, controllers and similar devices
• Electrical meters
• Radio and telecommunication equipment
• Alarm systems, interphones, HBES
• Relays, PLC and other controllers
• Industrial equipment
• Domestic and office equipment
• Electrical machines or components

Some of accredited test methods we provide are:

• Output power
• Spectral density
• Frequency range
• Spurious emissions of transceiver (Tx) and receiver (Rx)
• In-band and Out-of-band emissions (spectrum mask)

Other RF tests that we are also able to offer:

• Receiver sensitivity and blocking
• Antenna radiation pattern and optimization
• Measurement of other RF parameters
• On-site spectrum measurement
• Near-field measurement

We perform RF testing of many types of equipment, systems and in various frequency ranges:

• ISM bands up to 6 GHz
• WLAN/Wi-Fi, Bluetooth, BLE, ZigBee and similar radio technologies
• RFID/NFC at 13,56 MHz and in other bands
• SRD devices operate in 433 MHz, 868 MHz and in other bands
• Radio and TV broadcasting (analog/digital)
• GSM /2G, UMTS/3G, LTE/4G
• Wireless alarm systems, interphones, HBES
• Wireless A/V equipment, multimedia equipment (MME)

Examination or assessment of the electromagnetic field of radio devices is necessary to prove compliance with the requirements of the EU directive for radio products (RED 2014/53/EU), the Serbian Rulebook on radio equipment and other normative requirements for various markets (FCC for the USA, ICES for Canada... .). We conduct tests and evaluation:

• Low-poweer exclusion level

• E- and/or H- field spartial measument

• E-field calculation

in accordance with several standards (EN 50360, EN 50364, EN 62479, EN 50566, EN 62311, EN 62369-1...).

• Dielectric withstand (0.1 kV - 5 kV, up to 500 mA, 500 VA)
• Continuity - low resistance ( up to 9.999 Ohm @ 10/25 Aac; up to 999.9 Ohm @ 0.1/0.2 Aac; 4 wires measuring system)
• Voltage drop (up to 100 V scaled to 10 Aac)
• Insulation resistance (up to 999 MOhm @ 250 Vdc, 500 Vdc and 1000 Vdc)
• PE leakage current (up to 20 mA)
• Substitute leakage current
• Touch leakage current
• Functional (Active Power and Apparent Power up to 3500W, 40 V, 15.9 A, cos Phi 0 - 1, 45Hz - 65Hz)
• Discharge time (0 - 10 s @ safe levels 60 V, 120 V)
• Ingress protection (up to IP67) and Impact code (up to IK10)
• Temperature (up to 700 °C)
• Clearance and Creepage distances

And other electrical safety testing methods that we carry out in our laboratory, on-site or we subcontract with our partner laboratories.

Accredited testing in line with CISPR 25, ALSE method:

EN 55025:2017

EN 55025:2017/AC:2017

EN IEC 55025:2022

Other ESA (Electronic Automotive Subassemblies) tests:

CISPR 25, Measurement of conducted emissions from components /modules - Voltage method

ISO 7637-2, Electric transient conduction along supply only - Voltage transient emission test

ISO 7637-2, Electrical transient conduction along supply lines

ISO 10605, Test methods for electrical disturbances from electrostatic discharge (ESD)

ISO 11452-2, Component test methods for electrical disturbances from narrowband radiated electromagnetic energy - ALSE

In line with requrements of UNECE R10 regulative and of specific standards of the vehicle manufacurers: BMW, MAN, VW, Daimler MBN...

Energy consumption measurement, Energy Index and Energy Class determination for television sets (TV), monitors and displays and other aparatures for domestic and office use

According accredited test methods / standards:

EN 62087-3:2016

And in line with the EU and Serbian Energy labelling regulative.

Measurement of maximum allowed power consumption and inspection of the other Eco-Design mandatory requirements for  computers, notebooks, vending machines, set-top boxex (STB), television sets (TV) and monitors and other office and home appliances in line with:

• EU Eco-Design regulatives
• Serbian Eco-Design regulatives
• accrediited test methods / standards

EN 50564:2011 (IEC 62301)

EN IEC 62087-7:2019

EN 62623:2013

EN IEC 62623:2022

EN 62087-5:2016

On-site testing is carried out for large machines, systems, equipment and facilities or at the request of the client:

• EMC testing of machines and plants according to EN 55011, EN 50370-1, EN 50370-2 standards
• Safety testing
• Measurement of the shielding efficiency (electromagnetic attenuation) of Faraday cages, magnetic resonance imaging (MRI) rooms, EM test chambers...
• Energy consumption measurement of electrical products