EMTEST CWS 500N2 User manual

M a n u a l

f o r O p e r a t i o n

Continuous Wave Simulator

CWS 500N2

CWS 500N2.1

Compact RF simulator for BCI, Stripline and TEM cell

applications. 9kHz –400MHz ( 1000MHz)

The CWS500N2 is the state of the art solution in a

compact one-box design to test immunity to

conducted disturbances induced by radio frequency

fields. The CWS500N2 includes signal generator, RF

amplifier directional coupler, 3 channel power meter,

software and GPIB interface.

The integrated amplifier can also be controlled using

external signal generators. The icd.control software

supports the test routines and controls external

measuring devices.

ISO 11452 part 4

ISO 11452 part 5

RTCA DO 160D

Mil 461 CS 114

EN/IEC 61000-4-6

various automotive

manufacturer’s

specifications

Version:

3.00 / 24.05.2013

the benchmark for emc

Replaces:

2.06 / 14.05.2012

Filename:

UserManual-CWS500N2-E-V3.00.doc

Printdate:

07.06.13

EM Test CWS500 N2

User manual V 3.00 2 / 38

EM TEST (Switzerland) GmbH

Sternenhofstrasse 15

4153 Reinach BL1

Switzerland

Phone : +41 61 717 91 91

Fax : +41 61 717 91 99

URL : http://www.emtest.com

Specifications subject to change

EM Test CWS500 N2

User manual V 3.00 3 / 38

Contents

1. Safety Aspects.........................................................................................................................................4

2. Setup the CWS 500N2.............................................................................................................................4

2.1. Connections CWS 500N2.........................................................................................................................4

2.2. Test Setup CWS 500N2............................................................................................................................4

2.3. Part Identifications and Functions.............................................................................................................5

2.3.1. Clamp Applications for Automotive standards ..........................................................................................5

2.3.2. CDN Applications as per IEC 61000-4-6 ..................................................................................................6

3. Operating Functions...............................................................................................................................7

3.1. Front View.................................................................................................................................................7

3.2. Rear view CWS 500N2 .............................................................................................................................8

4. Front Panel Operation ..........................................................................................................................10

4.1. Basic Operations.....................................................................................................................................10

4.2. Quickstart................................................................................................................................................11

4.2.1. Quickstart during instrument calibration..................................................................................................12

4.3. Display during Remote control................................................................................................................13

4.3.1. Modulation...............................................................................................................................................14

4.4. Service ....................................................................................................................................................15

4.4.1. Setup.......................................................................................................................................................15

4.4.2. Amplifier Switch.......................................................................................................................................16

5. Starting Operation.................................................................................................................................17

5.1. Safety Aspects ........................................................................................................................................17

5.2. Generator Function Check......................................................................................................................18

5.3. Function Check internal Powermeter......................................................................................................19

5.4. Function Check amplifier switch ( 1GHz model only) .............................................................................20

5.5. Calibration...............................................................................................................................................21

5.5.1. Calibration Setup for Bulk Current Injection Clamp (BCI) as per ISO / DO / MIL...................................21

5.5.2. Calibration Setup EM TEST and IEC 61000-4-6 ....................................................................................22

5.5.3. Calibration Setup with CDN ....................................................................................................................23

5.5.4. Calibration Setup with EM Clamp ...........................................................................................................24

5.6. Failure Input ............................................................................................................................................24

6. Test Equipment CWS 500N2 ................................................................................................................25

6.1. Control Unit .............................................................................................................................................26

6.2. Generator Unit.........................................................................................................................................26

6.3. High frequency Power Unit .....................................................................................................................26

6.4. 3dB Attenuator ........................................................................................................................................26

6.5. 6dB Attenuator ........................................................................................................................................27

6.6. CDN Coupling/ Decoupling Network.......................................................................................................27

6.7. Test Setup with CDN’s ............................................................................................................................28

6.8. Test Setup with the Current Monitor .......................................................................................................29

6.9. Test Level and Modulation......................................................................................................................29

7. Technical Data.......................................................................................................................................30

7.1. CWS500N2 .............................................................................................................................................30

7.2. CWS500N2.1 ..........................................................................................................................................32

8. Maintenance...........................................................................................................................................34

8.1. General....................................................................................................................................................34

8.2. Calibration and Verification .....................................................................................................................35

8.2.1. Factory calibration...................................................................................................................................35

8.2.2. Guideline to determine the calibration period of EM Test instrumentation.............................................35

8.2.3. Calibration of Accessories made by passive components only..............................................................35

8.2.4. Periodically In-house verification.............................................................................................................35

9. Delivery Groups.....................................................................................................................................36

9.1. Basic equipment......................................................................................................................................36

9.2. Options and Accessories ........................................................................................................................36

10. Appendix................................................................................................................................................37

10.1. Blockdiagram...........................................................................................................................................37

10.2. Declaration CE- Conformity ....................................................................................................................38

EM Test CWS500 N2

User manual V 3.00 4 / 38

Safety Aspects



Before using the CWS 500 N2 read the following manuals carefully :

- Safety requirements manual

- Manual for operation CWS 500N2

Setup the CWS 500N2

2.1.

Connections CWS 500N2

Below are all possible connections to the CWS 500N2

Fig 2.2 : CWS 500N2 ( 1 GHz) connection rear view

2.2.

Test Setup CWS 500N2

Figure 2.3a / 2.3b :

Typical test setup with

required parts for BCI

application with CWS

500N2

EM Test CWS500 N2

User manual V 3.00 5 / 38

2.3.

Part Identifications and Functions

Continuous Wave Simulator CWS 500N2 1GHz

Fig 2.4

2.3.1.

Clamp Applications for Automotive standards

Fig 2.5

Bulk Current Injection Clamp BCI type ( selection of clamps)

F-130-A1 10kHz –400MHz

F-120- 6A 10kHz –400MHz

FCC-BCICF-1 Calibration Fixture for BCI clamp (jig)

F-140A 100kHz - 1000 MHz

FCC-BCICF-2 Calibration Fixture for BCI clamp (jig)

Fig 2.6

Current Monitor Probe

F-33-2 1kHz –250MHz

F- 55 10kHz –500MHz

F- 65 100kHz - 1GHz

Fig 2.7

Attenuator 3dB optional

Type ATT3/100

3dB 100W

Fig 2.8

Attenuator 20dB ( for DO and MIL application )

Type ATT20/100

20dB 100W

Fig 2.9

Attenuator 20dB

20dB 15W

Fig 2.10

Terminating resistor 50 Ohm optional

50 6W

EM Test CWS500 N2

User manual V 3.00 6 / 38

2.3.2.

CDN Applications as per IEC 61000-4-6

Fig 2.11

Bulk Current Injection Clamp BCI type

F-120-9A 10kHz –230MHz

FCC-BCICF-4 Calibration Fixture for BCI clamp (jig)

Fig 2.12

Attenuator 6 dB / 75W

Fig 2.13

Coupling / Decoupling Network

Types:

CDN-M 1; M 2; M 3; M4; M 5;

CDN-S1-50/75; S 2; S 4; S 9; S 15; S 25; S68

CDN-T 2; T 4; T 2-RJ11; T8-RJ45;

CDN-AF 2; AF 3; AF 4; AF 8

Fig 2.14

EM Clamp

Type EM 101

Fig 2.15

Calibration

CWS-Cal Basic Calibration Kit

Transport Case

150to 50Adapter

BNC cable 0.5m

Cal adapter according to CDN ,

Fig 2.16

Adapter

R100N 150to 50Adapter

R100A 150to 50Adapter for Current Clamp CAL Fixture

EM Test CWS500 N2

User manual V 3.00 7 / 38

Operating Functions

3.1.

Front View

Fig 3.1

1. Display

2. Function keys "F1..F7"

3. "Test On"

4. Knob (Inc / Dec)

5. Cursor keys "" and ""

6. Exit

7. Escape

8. RF Output

9. LED RF Output Monitor

10. Current Probe Input (Monitor)

11 LED Current Probe Input

1 Display

All functions and parameters are displayed (8 lines with max. 40 characters).

2 Function Keys "F1 .. F7"

Parameters and functions displayed in the lowest line and functions displayed with ” F “, can be selected

with the related function key.

3 Test On

By pressing the key "TEST ON", the RF signal will be released and the test procedure can be started.

4 Knob (Inc / Dec)

This knob increments or decrements parameters with a numeric value or selects parameters from a list.

5 Cursor Key

Parameters and functions can be changed during the test. The selection of these parameters is done with

the cursor, moving it to the left or to the right.

6 EXIT

The EXIT button resets the firmware to the main menu. This is only possible, if no test routine is running.

7 ESC

The ESC button returns back to the previous level in the menu.

8 RF-Output

At this output the RF power is available. The 3dB-attenuator is connected, if available, via coaxial cable.

For conducted tests together with CDN’s, EM clamps or current injection clamps, it may be suggested to

load the simulator with a matched 50 ohm load. In case the above mentioned coupling device may not

represent such matched load, then it is recommended to add a 3dB attenuator in between.

9 LED RF Output Monitor

When the RF output is active this LED on the front panel is illuminated to indicate that a test signal is

generated.

10 Current Probe Input

For tests with a current injection clamp where the EUT current has to be measured and/or monitored, the

current probe can be connected to this input.

ATTENTION: Do not connect the RF output directly to this input otherwise it will be damaged.

11 LED Current Probe Input

When current monitoring is active this LED on the front panel is illuminated.

EM Test CWS500 N2

User manual V 3.00 8 / 38

3.2.

Rear view CWS 500N2

Fig 3.3

1 Connection Ext. Amplifier RETURN

2 Pre coupler insert loop

3 SG out

4 Power On Switch

5 Power selector 115V –230V

6 USB Interface

7 IEEE Interface

8 Remote Control Connector

9 Fail 1 Detection "Stop"

10 Fail 2 Detection "Pause"

11 Pre Amp Insert Loop

1 Connector External Amplifier (EXT AMP Return )

Input signal from an external amplifier. ( max. power 200W)

2 Pre Coupler insert loop

Output and return connection for the external device like a filter or TEM cell

3 SG Out

Output to an external amplifier for control an amplifier >100W .

4 Power On Switch

The switch and the main fuses are part of this box. (230V / 3.15AT or 115V / 6.3AT)

5 Power selector

Input power selector for input voltage 115V –230V.

6 USB interface

USB interface “USB B” connector. For datatransfer a USB interface is available. The internal RS 232

interface is converted to USB standard. Therefore the user must set the same Baudrate in the device and

control software.

Using the USB interface the user can have emc problems during burst tests Our experiences says, that

usually the computer USB port is disturbed by interference’s. Therefore a high quality USB cable ( USB 2.0

standard) must be used.

7 Parallel Interface IEEE

IEEE 488 interface with IEEE connector.

8 Remote Control Connector

not used.

9 Fail Detection FAIL 1 (TEST STOP)

The BNC input FAIL 1 can be used for failure detection on the EUT. If the input is set to ground (chassis),

the CWS 500N2 generator will be stopped and finish the test routine. It is not possible to continue the test.

A complete restart of the routine will be necessary. The message "FAIL 1" is indicated in the icd.control

software.

EM Test CWS500 N2

User manual V 3.00 9 / 38

Fig 3.3

1 Connection Ext. Amplifier RETURN

2 Pre coupler insert loop

3 SG out

4 Power On Switch

5 Power selector 115V –230V

6 USB Interface

7 IEEE Interface

8 Remote Control Connector

9 Fail 1 Detection "Stop"

10 Fail 2 Detection "Pause"

11 Pre Amp Insert Loop

10 Fail Detection FAIL 2

The BNC input FAIL 2 can be used for failure detection on the EUT. If the input is set to ground (chassis),

the failure will be detected and the test continues normally. After a FAIL 2 events the test routine will stop

and the message ”FAIL 2“ will appear in the host screen ( icd.control software).

11 Pre Amp Insert Loop

Output and return connection for the external device like an external Amplifier.

EM Test CWS500 N2

User manual V 3.00 10 / 38

Front Panel Operation

4.1.

Basic Operations

The simulator CWS 500 N2 is operated by an easy menu control system.

Seven function keys are available to select parameters and functions. All

functions are indicated on the display; max. 8 lines and 40 characters.

The selected parameter is blinking and can be changed by turning the knob (incr./decr.).

 : The digit to be changed can be selected with the cursor ( ).

- Setted values are direct indicated on the screen.

- Status on the bottom lines shows thedesired status after pressing the function

key.

ESC : ESC will take you back to the previous level in the menu and set the displayed

values. The latest settings are stored automatically and will be recalled when the

menu is selected again.

EXIT : The firmware will reset to the main screen.

Start-up display

EM TEST

C W S 5 0 0N2

RF 9kHz –1 GHz

V 3.21a03 SWN: 002234

Generator Model

Frequency Range

The version number and the software number SWN are used for tracing purposes. These numbers are listed in

the test reports and calibration certificates. These numbers are also listed within the test reports generated by

the software report generator.

Page 1 (Main Menu)

MAIN MENU

F1 : Quickstart

F7 : Service

F1 Quickstart

Manual operation by entering the attenuation, frequency and modulation

F7 Service

Setup can be selected and displayed

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