EMIS is a leading service provider of Electromagnetic Compatibility (EMC) and Electromagnetic Interference (EMI) engineering and compliance services. Apart from comprehensive EMI/EMC testing facilities, we also offer expert consultancy support for engineering, design analysis and technical training. Our endeavour is to provide our customers all EMI related solutions under one roof.

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Why EMIS?

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    Custom Specific Development Design

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    EMC Testing

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    EMC Consultancy

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    Trading of Critical EMIS parts

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    EMIS Pioneer in India providing "ONE STOP SHOP" for EMIS/EMC

Consultancy Services

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We offer a wide range of EMI/EMC services to customers to seamlessly take their products from concept to delivery. Our expert engineering and consulting team provide support to design, plan, execute, inspect and verify EMI compliant systems. EMIS can help customers with their products to meet International EMI/EMC standard compliance by providing suitable solutions within a short time span. Our consultancy services include:

  • Support and guidelines for selecting the appropriate filters for various applications
  • EMC Control Planning
  • EMI/EMC Product design review and compliance risk assessments
  • Trouble-shooting and design mitigation
  • Performance Requirements Definition and Flow Down
  • Requirements Gap Analysis
  • Risk Mitigation Plans
  • Test Procedures and EMI Test Plans and Procedures Development

EMI/EMC Compliance Testing

EMIS houses sophisticated and fully equipped testing facilities at our EMI/EMC testing laboratory in Bangalore, India. Our test facility is accredited by the National Accreditation Board for Testing and Calibration Laboratories (A Constituent Board of Quality Council of India) in accordance with the standard ISO/IEC 17025:2017. We also support on-site testing in compliance with international standards.

We provide industry-specific EMC testing services. Some of the industries we cater to include:

  • Consumer Electronics
  • Aviation
  • Defence
  • Medical electronics
  • Telecommunication

Customers can avail of the following tests at our in-house EMI/EMC Lab:

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  • Electro Static Discharge (ESD) as per IEC 61000 – 4 – 2
  • Electrical Fast Transient (EFT) as per IEC 61000 – 4 – 4
  • Surge as per IEC 61000 – 4 – 5
  • Voltage Dips/ Interruptions as per IEC 61000 – 4 – 11
  • Conducted Emission and Radiated Emission as per CISPR – 11,14 and 22

EMIS also has a DSIR (Department of Scientific and Industrial Research, Government of India) recognised R&D Lab where customers can avail the following tests:

  • Hi-Pot Test
  • LCR measurements
  • DC resistance Test
  • Insulation Resistance
  • Temperature Test
  • Surge withstand Test
  • Leakage Current Test
  • Overload Test
  • Endurance Test
  • Capacitor Discharge Test
  • Insertion Loss Test

Test Facilities (Commercial Specifications)

Conducted Emission Test

Single phase up to 16A, 3 phase up to 63A

This test measures the amount of electromagnetic energy that is conducted by the Product Under Test onto the power supply cords. These energy levels have to be within the prescribed limits set by the standard agencies applicable for that appropriate geographic region. This test is intended to ensure that the product under test -

  • does not pollute the power supply lines
  • nearby electrical devices are not affected by the device under test
Test Standard Test Description Range of Testing / Limits of Detection
CISPR 11/ BS EN55011 Emission requirement for Industrial, Scientific & Medical Radio Frequency Equipment 150 kHz to 30 MHz
CISPR 14-1/BS EN 55014-1 Emission requirement for Household Appliances, Electrical tools and similar Electrical apparatus
CISPR 22/ BS EN55022 Emission requirement for Information Technology Equipment
IEC 61000-6-3,IEC 61000-6-4 Generic standards. Emission requirement for residential, commercial and light-industrial equipment

Conducted Immunity Tests

Single phase up to 16A, 3 phase up to 32A

External EMI could come in any one of the following types - Conducted or radiated, Transient or continuous.

Immunity tests are intended to qualify and quantify how immune and resilient the device under test is to external EMI. Care has to be taken by the manufacturers that their equipment has built-in features to protect itself from external EMI.

Test Standard Test Description Range of Testing / Limits of Detection
IEC 61000-4-2 CISPR 14-2 IEC 61000-6-1 IEC 61000-6-2 CISPR 24 Electro Static Discharge (ESD) - Contact Discharge - Air Discharge 1kV to 8kV
1kV to 16 kV
IEC 61000-4-4 CISPR 1 4-2 IEC 61000-6-1 IEC 61000-6-2 CISPR 24 Electrical Fast Transients(Burst) - Amplitude - Pulse duration 0.25 kV to 4 kV 15 ms 0.75 ms
IEC 61000-4-5 CISPR 1 4-2 IEC 61000-6-1 IEC 61000-6-2 CISPR 24 High Energy Surge - Amplitude - Pulse duration 0.5 to 4kV 1.2/50 µsec 8/20 µsec
IEC 61000-4-1 CISPR 14-2 IEC 61000-6-1 IEC 61000-6-2 CISPR 24 Power Fail (Line Voltage Dips & Short Interruption) - Dips 230 Vrms at 50Hz 0% of Uin 80% of Uin 70% of Uin 40% of Uin ½ Cycle to 250 Cycles

Radiated Emission Test

Open Area Test Site - 3M

This test involves measuring the electro-magnetic field strength of the emissions that are generated by any electrical product or equipment. These emissions have to be within the limit prescribed by the standards that are prevalent in that country/region.

Open Area Test Site (OATS - 3M) is the most common test to measure the EMI generated by a product under test.

Test Standard Test Description Range of Testing / Limits of Detection
CISPR 11/ BS EN55011 IEC 61000-6-3 IEC 61000-6-4 Emission requirement for Industrial, Scientific & Medical Radio Frequency Equipment 30 MHz to 1 GHz

Test Facilities (Military Specifications)

Conducted Emission Test

Single phase up to 50A

Test Standard Test Description Range of Testing / Limits of Detection
CE101–Power leads (As per the MIL- STD-461E/F) Requirements for the control of Electromagnetic Interference Characteristics of Subsystems and equipment 30 Hz to 1 KHz
CE102–Power leads (As per the MIL-STD-461E/F) Requirements for the control of Electromagnetic Interference Characteristics of Subsystems and equipment 10 KHz to 10 MHz

Trading of Critical EMI parts

EMIs believes in delivering complete solutions to our customers. When a solution design involves components which we don't manufacture, we procure them from reliable external sources and integrate them with our EMI solutions. So that the customer can get a one-point interface for all their needs. Externally procured components include:

  • EMI Suppressed circular connectors
  • EMI Gasket, windows, Honey combs, Grounding contacts