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EMC Test Systems

Reliant EMC (Laplace USA Distributor) provides a broad range of solutions for the EMC, RF and ESD world

From diagnostics tools to complete EMC Compliance setups. 

Laplace Instruments is your source for test equipment that will enable you to self test and self certify your own products.

Whether it is emissions or immunity..... we have an integrated test system to suit.

Our systems are used worldwide and offer effective 'real world' solutions for EMC measurements without the need for major investment in resources.

 

EMC Test Systems Index

EMC Test Cells - LaplaCells

Large Loop Antenna

RF Absorbing Clamp

RF Synthesizer

RF System Amplifier

Spectrum Analyzer

 

Laplace EMC Compliance Systems

Compliance Flowchart

Picture

Model

Description / Features

Laplace EMC System

 

 EMC Compliance & Pre-Compliance Systems

 

No Shield Room Required for Pre-Compliance

 

How it Works

 

Now you can perform radiated and conducted EMC pre-compliance test of your equipment right at your company at your convenience without going to the lab and without spending a fortune on the shielded anechoic chamber.

  • Shrink time-to-market by doing EMC test when it is not too late

  • Reduce expenditures on lab time -- go to the certified lab when you know you will pass

  • Lower cost of your product by applying EMC solutions earlier in design

  • Perform CE-Mark self-certification at your company (yes, it is legal!)

  • Be in control of your design

 

 EMC Laplace Test Cells

Picture

Model

Description / Features

 

 

 

 

 

LaplaCell600

 

EMC Compliance Test Cell

 

30 MHz to 3 GHz

 

Immunity
IEC61000-4-3

N42.32-2006 Section 8.2

N42.33-2006 Section 8.2

N42.34-2006 Section 8.2

N42.35-2006 Section 8.2

 

Emissions
EN, FCC, As/NZ, and CISPR

 N42.32-2006 Section 8.5

N42.33-2006 Section 8.5

N42.34-2006 Section 8.5

N42.35-2006 Section 8.5

 

The cell provides the core of a totally integrated system which will deliver a complete, PC controlled Emissions and Immunity test package.

  • You can easily self certify & self calibrate your own test cell

  • The cell is a stainless steel fabrication with continuously welded joints all round, giving a totally screened enclosure which is completely maintenance free and will not degrade with time.

  • The main body of the cell is made from 18swg sheet giving a very strong unit but with an overall weight of only 100kg. 

  • The EUT usable area is contained within a Polypropylene enclosure. 

  • All calibration & correction factor data for Emissions & Immunity provided to you.

  • 100 Watts Maximum

  • 40 V/m Field Strength (standard model, higher available)

 

EUT Size: 23.64" x 23.64" x 23.64"

60cm x 60cm x 60cm

 

Usable EUT Test Volume: 30.7" x 32.3" x 34.2"

78cm x 82cm x 87cm
 

 

LC600 Drawing   DATA

 

Immunity Data

Rear view of an LC300/2 showing the main door for access to the EUT volume.
On the right is the access for the filter block terminations.

 

Lc300-2 Rear View

LC300/2, view showing the typical layout of an LC300/2 filter block output. Cables from the EUT in the volume of the cell are terminated here.

 

Lc300-2 Filter block terminations

This is the view of the rear of an LC600/2. On the left is the filter block access door, on the right is the main access to the EUT volume. The cell is shown here with its main access door open.

Lc600 with main door open

 

LaplaCell300/2


EMC Compliance Test Cell

 

30 MHz to 3 GHz

 

Immunity
IEC61000-4-3

 

Emissions
EN, FCC, As/NZ,

and

CISPR standards

 

DATA

 

 

The cell provides the core of a totally integrated system which will deliver a complete, PC controlled Emissions and Immunity test package.

 

LC300 Drawing   DATA   Immunity Data

  • You can easily self certify & self calibrate your own test cell

  • The cell is a stainless steel fabrication with continuously welded joints all round, giving a totally screened enclosure which is completely maintenance free and will not degrade with time.

  • The main body of the cell is made from 18swg sheet giving a very strong unit but with an overall weight of only 100kg. 

  • The EUT usable area is contained within a Polypropylene enclosure. 

  • All calibration & correction factor data for Emissions & Immunity provided to you.

  • 100 Watts Maximum

  • 60 V/m Field Strength (standard model, higher available)

EUT Size: 11.8" x 11.8" x 11.8"

30cm x 30cm x 30cm

 

Usable EUT Test Volume: 20.0" x 18.9" x 16.1"

51cm x 48cm x 41cm

 

Immunity
IEC61000-4-3 sets the requirements for RF immunity testing. It specifies fields of up to 10V/m over the range 80MHz to 1GHz and provides minimum performance requirements. The LaplaCell range fully meets these requirements and when used in conjunction with the Laplace synthesizer and power amplifier, provides a complete integrated solution .

 

Emissions
EN, FCC, As/NZ, and CISPR standards all require the use of an OATS (Open Area Test Site) for the measurement of emissions. This is a demanding requirement in terms of space, resources, calibration and expertise. The LaplaCell range provides an ideal alternative solution, delivering equivalent OATS performance without OATS problems.

 

Uniformity: The balanced septum design ensures good uniformity, even when compared with the "industry standard" GTEM type. The above views make this obvious.

Impedance: The aim of a test cell is to emulate an OATS test. Free space impedance as applies to OATS sites is 377 ohm. Conventional test cells are 50 ohm systems. The unique design of the LaplaCell matches the incoming 50 ohm impedance to around 200 ohm inside the cell, a much closer match to free space impedance.

 

RF Immunity Test Setup

Block Diagram of system

Construction
The cell is a stainless steel fabrication with continuously welded joints all round, giving a totally screened enclosure which is completely maintenance free and will not degrade with time. The main body of the cell is made from 18swg sheet giving a very strong unit but with an overall weight of only 100kg. The EUT usable area is contained within a Polypropylene enclosure. No internal parts of the cell are accessible to the user. The door is fitted with a clear glass window and a fine grade stainless steel mesh for EM screening. Both the glass and the mesh can be easily removed for cleaning. The periphery of the door mates with a mesh wire EMC gasket in the door frame so that the integrity of the screening is maintained. In the door frame a micro-switch is located to detect when the door is not fully closed. At the nose of the cell, an N type connector and a 5 way DIN connector provide the RF input/output and connections to the internal field sensor respectively.
The RF connector is used as an input from an RF power amplifier for immunity testing. For emissions testing this connector is connected to an emissions analyzer.
The 5 way DIN connector provides power to the internal sensor and the DC level back from the sensor to the field control system (normally provided by the RF1000).
Also wired via this connector is the door interlock signal.

Internal sensor.
This sensor is built into the design of the cell. It is arranged so as to provide an output matched to the field strength as measured in the EUT volume.
Full scale of 2 volts corresponds to 10V/m on standard cells.
Alternative models are calibrated to higher field strengths.
The field sensor requires a supply of 5V at 20mA.
Each cell is shipped fully calibrated for sensor output vs field strength.

EUT input/output facilities
Comprehensive I/O filter facilities are provided at the rear of the cell. A cable duct between the EUT volume and the filter unit is designed so that cable entry is quick and easy. Inside the filter unit a connection panel with mains socket and a quick connect terminal block are provided. The terminal block can accept up to 12 connections. An additional connector provides an interface for internal lighting and a camera. (Optional extras)

Within the body of the filter unit each connection is RF filtered, then terminated on a matching set of connectors See diagrams.

 

Upper Termination Block

Upper part of I/O filter unit showing termination facilities for EUT.

 

The standard I/O arrangement comprises:

  • Mains supply. IEC input with Mains outlet for EUT (UK, European (Schuko), US or Australian/New Zealand connector. Specify at time of ordering)

  • Signals. 12 way Wago quick release terminal block rated at 240V ac 6A each line.

  • Connections for internal illumination and camera

Each line is pi-filtered with 5nF to ground. For High Speed data transmission lines, which may be compromised by this capacitance, an alternative common mode inductively filtered system can be provided.
A key point is that the I/O facilities can be customized to suit individual requirements at minimal cost.
For those EUTs which normally have long I/O cables, the impedance of the filter can be matched to simulate the long length. Again, these requirements can be designed to order.

Emissions
Details of the Antenna factor calibration are shown below.

The nominal A.F. is the correction applied to results from the cell to convert them to levels as measured on a three meter OATS. This calibration is obtained by measurements of an Emissions Reference Source (which is a transfer standard from NPL in London) in 12 (effectively 27) locations throughout the EUT volume. The 4 highest readings are averaged to provide the calibration data. The total range of A.F. is 33dB which is identical to the range found on typical EMC antennas for use in OATS.

To check the uniformity of the cell, the second plot compares the highest reading and the 4th lowest readings with the A.F. data. This shows excellent correspondence of the A.F. with the highest readings, and results within 10dB at all frequencies for the lowest readings. These low reading explains why standard procedure in test cells of all kinds is to move the EUT around the cell and measure the emissions in at least 4 locations.

Antenna Factor
Highest / Lowest Ant. Factors

The final chart shows the maximum deviation between the calibrated A.F. and the worst position within the cell.

Max Deviation Ant. Factor

 

Lower Termination Block

View of connection panel for external cabling.

Specification

LaplaCell 300/2

LaplaCell 600

Maximum EUT Size:

30 x 30 x 30 cm

60 x 60 x 60 cm

Usable EUT volume:

51 x 48 x 41 cm

78 x 82 x 87 cm

Calibrated frequency range:

30MHz - 3GHz

30MHz - 3GHz

Max RF power in:

100W

100W

Power for 10V/m:

5W

10W

Field @ max RF in:

60V/m

40V/m

Auxiliary Power Requirement: 

5V dc @ 25mA

24V dc (mains power unit supplied with cell, 110-240V ac)

Range Switching:

2 bands, switched (local & remote switching)

Screening attenuation

>60dB

Internal damping:

Ferrite absorbers

EUT Power Dissipation:

100W max

EUT cooling:

Optional forced air system

Immunity mode

RF Power input impedance:

50ohm

Input VSWR:

Better than 2:1

Input connector:

N type

Field uniformity:

<6dB within EUT volume ( < ± 3dB )

Max input power:

100W

Sensor output level:

0 - 2V corresponding to internal field strength

Calibration data:

Supplied with each cell

Sensor supply:

12V DC, 100mA max

Emissions mode 

Output Impedance:

50 ohm

Output connector:

N type

Calibration:

Correlated to 3m OATs (NPL)

I/O facilities

Integrated filter panel for power and signal connections into the cell.

Basic unit offers...

-Mains IEC connector

 

-10 way terminal block (10 amp max)

Additional interconnections may be specified at time of ordering.

Monitoring

Options:

Internal lighting

 

Internal video camera

Interlocks:

Door fitted with safety switch

General

LaplaCell 300/2

LaplaCell 600

Mounting:

Table top

Floor, fitted with castors

Size, L x H x W:

2.3 x 1.0 x 0.87 m

3.2 x 1.6 x 1.3 m

Door aperture:

35 x 35 cm

81 x 52 cm

Total weight:

200kg

400kg

EUT weight (max):

20kg

100kg

Outer construction:

Stainless steel

Internal EUT chamber:

Polypropylene

Septum:

Double tapered wire guided

 

 RF Synthesizer

Picture

Model

Description / Features

RF3000 

 

RF Signal Synthesizer

 

80 MHz to 3.0 GHz

 

 

Immunity
IEC61000-4-3

 

DATA

PC controlled RF synthesizer for immunity testing matched to the requirements of IEC61000-4-3 and featuring automatic scanning to pre-programmed schedules. To make the best use of the immunity test facilities for both compliance testing and product investigations, several useful features have been developed.

These include:

  • Powerful EUT monitoring with real time display correlated to field strength and frequency.

  • Sweep can be continuous or 'pause on fault' or 'stop on fault'. Additional EUT excitation output, either pulsed or continuous.

  • Flexible single frequency search mode. Automatic ramping of field strength and fine control of frequency.

The system is controlled from any PC via a Windows software package and serial port. No additional interface cards are required.

RF1000

RF2000 

 

RF Signal Synthesizer

 

30 MHz to 1.0 GHz

30 MHz to 2.4 GHz

 

Immunity
IEC61000-4-3

 

DATA

PC controlled RF synthesizer for immunity testing matched to the requirements of IEC61000-4-3 and featuring automatic scanning to pre-programmed schedules. To make the best use of the immunity test facilities for both compliance testing and product investigations, several useful features have been developed.

These include:

  • Powerful EUT monitoring with real time display correlated to field strength and frequency.

  • Sweep can be continuous or 'pause on fault' or 'stop on fault'. Additional EUT excitation output, either pulsed or continuous.

  • Flexible single frequency search mode. Automatic ramping of field strength and fine control of frequency.

The system is controlled from any PC via a Windows software package and serial port. No additional interface cards are required.

 

 RF Power Amplifier

Picture

Model

Description / Features

RF1100

 

RF Power Amplifier

 

80 MHz to 1.0 GHz

 

Immunity
IEC61000-4-3

 

10 V/m in 

LaplaCell 300

 

DATA

RF broadband power amplifier 80MHz - 1GHz at 10W continuous output.

A fixed gain, low distortion power amplifier with excellent stability over a wide range of VSWR.

The Laplace power amplifiers are air cooled RF broadband amplifiers which are designed for a wide range of applications. They feature good linearity and wide bandwidth together with high gain. The solid state booster stage is of type A/B (push pull) which combines excellent stability with good inter-modulation behavior.

Although specified from 80MHz, these amplifiers are usable down to 30MHz with very little degradation in performance specification.

RF1200

 

RF Power Amplifier

 

800 MHz to 2.0 GHz

 

Immunity
IEC61000-4-3

 

10 V/m in 

LaplaCell 300

 

RF broadband power amplifier 800MHz - 2GHz at 10W continuous output.

A fixed gain, low distortion power amplifier with excellent stability over a wide range of VSWR.

The Laplace power amplifiers are air cooled RF broadband amplifiers which are designed for a wide range of applications. They feature good linearity and wide bandwidth together with high gain. The solid state booster stage is of type A/B (push pull) which combines excellent stability with good inter-modulation behavior.

 

LETIS LETIS


Automatic Amplifier Switcher

DATA

Frequency range 30MHz - 6GHz

RF Input/output impedance 50 ohm

RF Input/output connectors N type

RF power rating 60W

RF Signal connectors BNC

Interlock signals 4 way DIN (metal/screened)

Connectivity:

Cell/antenna to: PA1, PA2, Receiver/analyzer

Synthesizer RF to: PA1, PA2

Synthesizer interlock to: PA1, PA2

Insertion loss (RF) 1dB max

Control Auto: USB

Man mode: Paddle switch

Indication LED indicators .

Power 110/230V 50/60Hz IEC input

Size (W x H x D) 31 x 11 x 26

Weight 3.5kg

SA1020

 

RF Pre-Amplifier

 

18dB Gain

 

5KHz to 500MHz

 

DATA

Bandwidth (nom 3dB point)

10KHz - 1000MHz

Gain :

20dB

Gain accuracy :

±1dB for above range

Noise (typical):

3dB (degradation of S/N ratio)

Max safe input :

0dBm (220mv)

Input impedance :

50R

Max output into 50R :

0.5 volt pk-pk

Output impedance :

50R

Power :

9V PP3 battery

Physical size :
Weight :

115 x 107 x 50mm
200 grams (including battery)

Connectors :

50ohm BNC

 

EMC Analyzers

Picture

Model

Description / Features

SA3000 

 

Spectrum Analyzer

10 kHz to 3.0 GHz EMC Analyzer

 

Emissions
EN, FCC, As/NZ, and CISPR standards

 

DATA

 

The Laplace SA3000 EMC analyzer provides an exceptionally cost effective tool to manufacturers and others who wish to measure EMC emissions from their products. Entirely controlled from an intuitive Windows software package, the analyzer can enable a self-test and self-certification strategy to be adopted with confidence.


The software is a true Windows program which means that results can be easily transferred to printer and disk and to other applications such as Word and Excel.


A full range of compatible accessories are available, including compact test cells and antennas, all fully calibrated to 3GHz.

SA1000 Spectrum Analyzer

SA1002

 

10 kHz to 1.0 GHz 

EMC

 Spectrum Analyzer

Emissions


EN, FCC, As/NZ,

& CISPR Standards

 

DATA


The SA1002 is an exceptionally well featured EMC analyzer designed to match the requirements of all common EMC standards and includes…..
 

  •  10KHz—1GHz frequency range

  •   200Hz (opt), 9KHz, 120KHz and 1MHz RBW

  •   Peak, Quasi-peak and Average detectors

  •   Precision frequency measurement at all points in any scan.

  •   Instant zoom capability to any point in a scan.

  •   Audio demodulator (FM and AM)

  •   USB interface, just plug and go!

  •   Optional pre-selector for conducted emissions.

  •   Optional tracking generator output.

Software is at the heart of any EMC test system. The Laplace RF emissions software is a fully integrated Windows compliant package. It not only directly controls all aspects of the analyzer,
it sets the test conditions such as input device, antenna correction and insertion loss. It also includes unique features which can cancel ambient signals, calibrate your radiated test site (in
conjunction with an ERS) and provide instant zoom anywhere in the scan.
This software is specifically designed for ease of use by non- EMC expert staff, but retains many exceptionally advanced features.
Finally…...The Laplace range is fully supported worldwide. Help lines and lifetime software support are included for all our customers.

 

 

Large Loop Antenna

Picture

Model

Description / Features

RF300 Large Loop antenna

RF 300

 

 Large Loop Antenna

 

For EN55015 

 

DATA

Developed specifically to meet the requirements of EN55015 for the testing of luminaires. Fully compliant and calibrated with 3 orthogonal loops mounted on a wooden frame. 

  • Loop diameter: 2 meter

  • Calibration factors supplied on disk read by EMC Engineer Windows software

 

 

RF 400

 

RF Absorbing Clamp

 

For

EN55014 and CISPR16

 

DATA

EN55014 specifies the use of an RF absorbing clamp for the measurement of emissions for frequencies over 30MHz. This method offers many advantages over the alternative technique of using open test area sites and broadband antennas with the attendant problems of reflections, background radiation, ground plane effects and lack of space. The RF400 is designed to fully meet the requirements of EN55014 and CISPR16. Each unit is supplied with calibration data enabling the measurement of emissions with a high degree of confidence.
 

  • Fully compliant with CISPR16
    Accepts cables up to 0.75" (19mm)

  • Split toroid makes cable insertion easy

  • Large diameter wheels for smooth running

  • Each unit calibrated and correction factors included

  • Motorized version available

  • Shaped PTFE cable guides at each end ensure cable alignment and prevent chaffing.

 

     

 

 

 Last Updated: June 23, 2017

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An Electro Mechanical Research and Development (EMRAD) Corporation, Company

 
     
 

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