Product Details
EMC Compliance
Test Cell
- Fully Calibrated and ready-to-use
- Avoid the hassle of OATS testing
- Compact - ideal if space is limited
- Affordable - easy on the budget.
Avoid test lab expenditure by self testing- Calibrated in accordance with IEC61000-4-20
The LaplaCell is a unique concept featuring a balanced septum design, proven to deliver better uniformity of field than any other GTEM or similar compact cell.
Two models are available, covering EUT sizes up to 60 x 60 x 60 cm, and frequencies up to 3GHz. The cells are fitted internally with a field strength sensor, so no need to provide this as a separate item. Each cell is individually calibrated and shipped fully checked and tested so that when they arrive, simply connect to the ancillary equipment, switch on and go.
When used with the RF1000 or RF2000 system controller for immunity testing, operation is entirely automatic.
The LaplaCell 300 and LaplaCell 600 provide the basic building block for providing an integrated EMI / EMC test facility which will deliver high integrity results with the minimum of complexity. The CLIENTS system from Laplace provides a complete integrated system using either of the Cell to provide a turnkey solution for emissions and immunity compliance testing of your product.
Emissions. Avoid all the difficulties of background signals, test site calibration, poor weather conditions and lack of space by using the LaplaCell.
Immunity. Efficient design means that 20V/m can be delivered with just 10W RF input power. If used in conjunction with the Laplace signal generators and software, testing is fully automated.
Compliance. These cells provide the capabilities to test to IEC61000-4-3, domestic, commercial, medical and industrial levels. For emissions and immunity, these cells meet the requirements of IEC61000-4-20.
Convenience. The LaplaCell occupies just one small corner in the Lab, yet provides a simple and immediate resource for EMC testing as and when you need it. Testing prototypes or production samples avoids potentially costly and time consuming rectification work at a later date.
The Laplace SA1000 emissions analyser (or any other analyser / receiver) will work directly with the cell, enabling compliance measurements to be made with ease, avoiding the problems of background radiation, test site distortion and the need for ground planes and height scanning.
When used with the RF1000 or RF2000 synthesiser and RF1100 or RF1200 power amplifier, fully compliant EN61000-4-3 testing can be accomplished with ease at levels up to 10 V/m.
In summary the cell provides the core of a totally integrated system which will deliver a complete, PC controlled emissions and immunity test package.
For more information on the LaplaCell please view the "Notes on LaplaCell". Please note that this page may take some time to download.
Specification LC 300/2 LC 600 General arrangement Drawing: Lc300-2GA Lc600-GA EUT size (max): 30 x 30 x 30 cm 60 x 60 x 60 cm EUT volume: 51 x 48 x 41 cm 78 x 82 x 87 cm Calibrated frequency range: 30MHz - 3GHz 30MHz - 3GHz 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 Max RF power in: 100W
100W Power for 10V/m: 5W 10W Field @ max RF in: 60V/m 40V/m RF Power input impedance: 50ohm Input VSWR: Better than 2:1 Input connector: N type Field uniformity: <6dB within EUT volume Auxiliary power requirement: 5V dc @ 25mA 24V dc (mains power unit supplied with cell, 110-240V ac) Field Sensor: Included with cell.
Calibrated for 0 - 2.5V dc output.Emissions Calibration: Calibrated and correlated to 3m OATS.
Full calibration data included ( hardcopy and disk).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 Mounting: Table top Floor, fitted with castors Size, L x H x W: 2.3 x 1.0
x 0.87 m3.2 x 1.6
x 1.3 mDoor 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
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 synthesiser 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.
Tour of the LaplaCell
Quick guide to the LaplaCell showing access and cable terminations.
General arrangement Drawings:
Lc300-2GA
Lc600-GAView Adobe PDF File
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| LAPLACE INSTRUMENTS
LTD 3B, Middlebrook Way, Holt Road, Cromer, Norfolk, NR27 9JR, UK |
Tel: + 44 (0)1263 515160 Fax: + 44 (0)1263 512532 E-mail:tech@laplace.co.uk |
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