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Emissions Test System
PC-114
Perform Radiated & Conducted EMI pre-compliance testing at your facility up to 1 GHz. Com-Power PC-114 EMI emissions test system is a ideal solution performing pre-compliance EMC testing from 9 kHz - 1 GHz.. It has essential equipment needed for radiated and conducted EMI emissions measurements. The system includes a spectrum analyzer, antennas, near field probes, a preamplifier, LISN and a non conductive antenna tripod. Pre-compliance testing in EMC is a commonly used term not easy to define. In general, it implies testing done prior to formal testing for legal compliance. Formal legal compliance is performed at a facility designed and equipped with test instrumentation that is fully compliant with the applicable EMC standards. Such facility and instrumentation is capital intensive and can be expensive even to rent and not easily available. Compliance testing is performed per exacting requirements of the Standards and other reference documents adhering to the test methods and last detail. In addition, the test facility may require to be accredited by an accreditation body such as NVLAP, A2LA. Often it is desirable to know prior to compliance testing at such facility, whether a product is close to compliance and also how close. Pre-compliance testing is specially useful for specifications such as FCC, Part 15, EN 55022 or EN 55011 (CISPR 22 or CISPR11). Pre-compliance testing usually means using the full compliance methods but making a few educated compromises in use of site or equipment to reduce costs and testing time. Here are some benefits of pre-compliance testing.
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LISN Line Impedance Stabilisation Networks / AMN Artificial Mains Network
A LISN Line Impedance Stabilization Networks / AMN Artificial Mains Network: *supplies the neccessary mains voltage (AC or DC) and current for the Equipment under Test (EuT).*couples interference voltage generated by the EuT and supplies it to the receiver.*provides well defined RF-impedance to the Equipment under Test (EuT)*keeps away unwanted disturbance coming from mains (filter)*protects the mains from unwanted disturbance voltage generated by the EuT
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LISN
The LISN (Line Impedance Stabilization Network) or AMNs (Artificial Mains Networks) is a device to create a known impedance on power lines of electrical equipment during electromagnetic interference testing. Frequency range: 150kHz a 30MHz
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Voltage Probes
In addition to EMI measurement with LISNs (Line Impedance Stabilisation Networks, Artificial Mains Networks), Probes are used for Terminal or Line voltage measurement.
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Calibration
RF Test Equipment
We calibrate following types of RF test equipment:EMF test systems (frequency selective)EMF test systems (broadband)Field strength transfer standards (e.g. RefRad)Line Impedance Stabilisation Network (LISN)Cable, attenuator, couplerAntennaField Probe
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Filter Design System - Mode Analyser
EA-300
The EA-300 is a stand alone unit with internal firmware and a large colour display. It connects to the outputs from a standard LISN and feeds the results to any standard EMC analyser or receiver. The EA-300 prompts the user through the steps necessary to fully characterise the emissions from the EUT, then will output via the screen the recommended filter component values that would reduce these emissions to acceptable levels.
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EMC Accessories
Complete your EMC test setup with the essential accessories to compliment the test equipment. Whether it is a LISN (or V-Network) to counteract interference from external power sources on conducted emissions from the device under test, probes to locate the near field sources of radiated emissions, receive and transmit antennas, or tripods for holding antennas in place, the Rohde & Schwarz catalog of EMC accessories provides the additional items you need for EMI and EMS measurements, guaranteed 100% suitable for use with Rohde & Schwarz EMC test equipment.
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5uH Line Impedance Stabilisation Network LISN - CISPR 25
TBOH01
The TBOH01 5H LISN is a device required to setup conducted noise measurements of DC-powered devices. It is designed to be used for EMC pre-testing in the frequency range of 150kHz to 110 MHz.
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Special - LISN
Impedance stabilization network which can be used to measure disturbance voltages of PLC (power line communication).
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LISN & Voltage Probes
All commercial LISNs include an artificial hand connection and a transient limiter. This adds a 30dB insertion loss. A 30dB pre-amplifier is included which can be connected in the RF output feed to return the insertion loss to 0dB. The Voltage Probe requirement is covered by our PLIP (Power LIne Interference Probe). This fully meets the requirements of CISPR16, but has additional features:*Fully galvanic isolation between input and output (>1kV), for the safety of operator and analyser!*Shrouded safety clips for attachment to the line to be measured.*Filtered frequency response matched to Band A and B.*Current limiting on the output.*Visual indication of high voltage input.
