EMTEST CWS 500N1.3 Instruction Manual

Continuous Wave Simulator
Type CWS 500
CWS 500N1.3 10 kHz to 400 MHz
CWS 500N1.4 100 kHz to 300 MHz
IEC 61000-4-6 / EN 61000-4-6
The CWS 500N1.3 and CWS 500N1.4 are compact
single box test equipment for testing conducted RF
immunity per IEC 61000-4-6 Ed.3 and Ed.4 and
related standards. with a frequency range between
10 kHz to 400 MHz. Apart from the 1 kHz 80 % AM
signal, the generator also generates a 2 Hz 80 % AM
signal to test medical appliances and a 1 Hz PM
signal with 50 % duty cycle required to test safety
equipment like fire alarms.
IEC 61000-4-6
EN 61000-4-6
Version:
1.01 / 02.03.2016
the benchmark for emc
Replaces:
1.00 / 19.02.2014
Filename:
UserManual-CWS500N1.x-E V1.01.doc
Printdate:
02.03.16
Manual
for operation

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 2 / 47
EM TEST (Switzerland) GmbH
Sternenhofstrasse 15
4153 Reinach BL1
Switzerland
Phone : [phone]
Fax : [phone]
URL : http://www.emtest.com
Copyright © 2016 EM TEST (Switzerland) GmbH All right reserved.
Information in earlier versions. Specifications
subject to change

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 3 / 47
Contents
1. Model Overview.........................................................................................................................................5
2. Safety .........................................................................................................................................................6
2.1. Safety Aspects ..........................................................................................................................................6
2.2.Safety when testing conductive immunity as per IEC 61000-4-6 .............................................................7
3. Unpacking and first installation ..............................................................................................................8
3.1. Unpacking .................................................................................................................................................8
3.2. Part Identifications and Functions.............................................................................................................9
4. Operating Functions...............................................................................................................................11
4.1. Front View...............................................................................................................................................11
4.2. Rear View................................................................................................................................................12
5. Manual Operation....................................................................................................................................14
5.1. Basic Operations.....................................................................................................................................14
5.1.1. Parameter definition for the following menus..........................................................................................15
5.1.2. Modulation...............................................................................................................................................15
5.2. Quickstart................................................................................................................................................16
5.3. User Test Routines..................................................................................................................................17
5.3.1. Voltage Sweep........................................................................................................................................17
5.3.2. Frequency Sweep ...................................................................................................................................17
5.3.3. Dwell Time Sweep...................................................................................................................................18
5.4. Standard Test Routines according to IEC 61000-4-6.............................................................................18
5.5. Calibration and Saturation test Menu......................................................................................................19
5.5.1. Calibration ...............................................................................................................................................20
5.5.2. Saturation check......................................................................................................................................22
5.6. Service ....................................................................................................................................................23
5.6.1. Setup.......................................................................................................................................................24
5.7. Remote display........................................................................................................................................25
6. Starting Operation ..................................................................................................................................26
6.1. Generator Function Check......................................................................................................................26
6.2. Function Check PM 1000........................................................................................................................27
6.3. Calibration and Test setup Overview......................................................................................................29
6.3.1. CDN.........................................................................................................................................................29
6.3.2. EM-Clamp / BCI Clamp...........................................................................................................................31
7. Calibration ...............................................................................................................................................33
7.1. General Information ................................................................................................................................33
7.1.1. 150Ωto 50Ωadaptor...............................................................................................................................33
7.2. Calibration Setup with CDN ....................................................................................................................34
7.3. Calibration Setup with EM Clamp ...........................................................................................................35
7.4. Calibration Setup for Bulk Current Injection Clamp (BCI).......................................................................35
8. Setup........................................................................................................................................................36
8.1. Test Setup with CDN’s ............................................................................................................................36
8.2. Test Setup with injection clamps (EM and BCI)......................................................................................37
9. Test Equipment CWS 500N1.x...............................................................................................................38
9.1. Design of CWS 500N1.3 series ..............................................................................................................38
9.2. Design of CWS 500N1.4 series ..............................................................................................................39
9.3. Control Unit .............................................................................................................................................39
9.4. Generator Unit.........................................................................................................................................39
9.5. RF Power Unit.........................................................................................................................................39
9.6. Fail 1 & 2 Input........................................................................................................................................40
9.7. 6dB Attenuator ........................................................................................................................................41
9.8. CDN Coupling/ Decoupling Network.......................................................................................................41
10. Technical Data.........................................................................................................................................42

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 4 / 47
11. Maintenance............................................................................................................................................44
11.1. General....................................................................................................................................................44
11.2. Calibration and Verification.....................................................................................................................44
11.2.1. Factory calibration...................................................................................................................................44
11.2.2. Guideline to determine the calibration period of EM Test instrumentation.............................................44
11.2.3. Calibration of Accessories made by passive components only:.............................................................44
11.2.4. Periodically In-house verification.............................................................................................................44
12. Delivery Groups......................................................................................................................................45
12.1. Basic equipment......................................................................................................................................45
12.2. Options....................................................................................................................................................45
13. Appendix..................................................................................................................................................46
13.1. Declaration CE- Conformity ....................................................................................................................46
13.2. Block Diagram.........................................................................................................................................47

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 5 / 47
1.
Model Overview
This Manual describes the continuous frequency generator models:
- CWS 500N1.3 Generator with frequency range from10 kHz to 400 MHZ and
- CWS 500N1.4 Generator with frequency range from100 kHz to 300 MHZ

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 6 / 47
2.
Safety
2.1.
Safety Aspects
Tests performed with RF-disturbances, induced by radio-frequency fields, are immunity tests on electronic
equipment. Therefore, it is the responsibility of the user to avoid critical failures and risks to the environment and
the operators.
Long power supply lines to the EUT may radiate energy. It is the responsibility of the user to determine whether
it is allows conducting immunity tests in a given location. The CWS 500N1.x are RF generators and therefore
connected cables can radiate and have interferences into the environment. It is in the responsibility of the user
that sensible areas will not disturbing by the RF tests.
The RF voltages on the center pin of the RF output connector can be hazardous. The RF output connector has
to connect to a load before applying AC power to the CWS 500N1.x. Do not touch the center pin of the RF
output connector or accessories, connected to it. Switch the equipment to the “Test OFF” position before
disconnecting or connecting the load to the RF output connector.
During this RF test, the interference power can be 80W or more. Therefore, the test should perform in a
shielded room to prevent interference with other equipment in the vicinity. Also, see the information included in
the declaration of conformity for the CE mark.
For the test setup, national and international safety regulations must observed.
Individuals with pacemakers must not allow participating in the testing procedure.
WARNING
Before using the CWS 500 N1.3 / N1.4 read the following manuals carefully :
- Safety requirements manual
- Manual for operation CWS 500N1.x generator

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 7 / 47
2.2.
Safety when testing conductive immunity as per IEC 61000-4-6
For a test setup as per IEC 61000-4-6, the following safety aspects have to consider strictly:
WARNING
For this test setup, no ground fault relays can be installing at the
working area.
Reason:
The Coupling Decoupling Networks have built in filter capacitors to PE. The ground current to PE therefore is
much higher and the fault current relays will be continuously switching off the power supply source.
The same problem is in a setup for measuring conductivity. In this case the specified LISN is causing the above
described ground fault current.
Special Information for operating the CWS 500N1.x:
1. The intake and outlet for the cooling system must not cover. Free air circulation is required for proper
function of the CWS 500N1.x. Blockage of the cooling air system may result in damage to the RF amplifier
or intermittent shut down of the equipment.
2. All panels have to install. They are important components of the cooling system. Never perform tests with a
partially or completely open generator.
3. Before a test or a calibration may performed, the generator must be operating for warm up
- CWS 500N1.3 for at least 15 minutes and
- CWS 500N1.4 for at least 30 minutes.
After this time the CWS 500N1.x output is stable
4. High voltage components are only be exposing when remove the three cover panels (unscrewed). To
service the inside the generator, the power supply must turned off and the power cord must remove before
opening the equipment.
5. Some CDN’s are design for higher and hazardous voltages. It is necessary to remove the power cord from
the input connection of the CDN’s before opening the housing.
6. Only trained and qualified service technicians are allow to perform service and repair the instruments.
Please contact an EM TEST service center or your local sales partner for repairing or servicing the units.

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 8 / 47
3.
Unpacking and first installation
3.1.
Unpacking
EM TEST tests the instrument before shipment and pack carefully on a transport palette. Each box is marked
with a detailed list of the contents.
Before activating the equipment, check if a damage
occurs during shipment. Check each container as well
as the generator itself. In case of physical damage,
contact an EM TEST representative before operating
the unit.
In case of a transportation damage do not throw away
any package material and contact immediately the
responsible forwarder and as well your local EM TEST
representative.
Fig 3.1 : example for shipping box
Checks after unpacking
1Connection bridge
2Bridge SG OUT –AMP IN
3Safety Circuit
4Voltage selector
5Main Switch
6Interface
Fig 3.2 : CWS 500N1.3 and CWS 500N1.4 rear side
Fig 3.3
1 Connection bridge
Connect the delivered N-connector bridge to the plug
COUPLER IN –AMP OUT
2 Bridge SG OUT –AMP IN
Check the RF bridge (SMA connectors) if the
connection is not damaged
3 Safety Circuit
Check the short circuit bridge for the safety circuit.
If required implement your own safety circuit.
(shielded cable required)
Fig 3.4
4 Voltage selector
Set the voltage selector to the correct voltage range.
Switch off the device before change the selector.
5 Main Switch
Switch on the device. After few seconds the display
will indicate the CWS 500N1.x model
6 Interface
Connect the USB or GPIB interface cable to the CWS
500N1.x for remote control. For software refer to the
sicd.control manual

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 9 / 47
3.2.
Part Identifications and Functions
Continuous Wave Simulator CWS 500N1.3 or CWS 500N1.4
Fig 3.5
Attenuator ATT6/80
6 dB / 80W
N/BNC connector
Fig 3.6
Attenuator 20 dB / 1W
Fig 3.7
Coupling / Decoupling Network
Types: (not complete list)
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 3.8
EM Clamp
Type EM 101
Fig 3.9
Bulk Current Injection Clamp BCI type F-120-9A
FCC-BCICF-4 Calibration Fixture for BCI clamp (jig)
Fig 3.10
Current Monitor Probe
Type F-33-2 1kHz –250MHz
Fig 3.11

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 10 / 47
Calibration
CWS-Cal Basic Calibration Kit
Transport Case
1x R100N 150to 50Adapter
1x BNC cable 0.5m
Cal adapter according to CDN ,
Fig 3.12
Calibration
CA EM Ed.4 Basic Calibration Kit
1 x Transport Case
2 x R100N1 150to 50Adapter
1 x BNC cable 0.5m, 1 x T-50, 1 x N L-adaptor plug/jack
4 x metal rod
1 x connector male-male metal rod
4 x plastic spacers (only for impedance measurement)
Fig 3.13
150to 50Adapter for calibration
R100N 150to 50Adapter 100 mm x 100 mm
R100N1 150to 50Adapter 150 mm x 150 mm
R100A 150to 50Adapter for Current Clamp CAL Fixture
Fig 3.14
T-50 Termination resistor
50 Ωtermination resistor
Fig 3.15
Bridge AMP OUT –COUPLER IN
N - connector bridge (part of the CWS 500N1.x delivery)
Fig 3.16
Bridge AMP IN –SG OUT
SMA - connector bridge (part of the CWS 500N1.x delivery)
Max. torque 100 Ncm
Fig 3.17
Bridge Safety Circuit
Short circuit bridge for safety circuit
Fig 3.18

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 11 / 47
4.
Operating Functions
4.1.
Front View
Fig 4.1
1"Test On"
2Function keys "F1..F7"
3Display
4Exit
5Cursor keys "" and ""
6Knob (Inc / Dec)
7Escape
8LED Monitor input
9LED RF Output
10 RF Output
11 Current Probe Input (Monitor)
12 LED Current Probe Input
1 Test On
By pressing the key "TEST ON", the test procedure can be started with the pre-selected parameters and
amplifier is turned ON.
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 Display
All functions and parameters are displayed (8 lines with max. 40 characters).
4 EXIT
The EXIT button resets the firmware to the main menu. This is only possible, if no test routine is running.
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. The increment value of the selected parameters in the lowest
line can also be selected with the cursor key.
6 Knob (Inc / Dec)
This knob increments or decrements test parameters with a numeric value or selects parameters from a
list.
7 ESC
The ESC button returns back to the previous level in the menu.
8 LED Current Probe Input
When current monitoring is active this LED on the front panel is illuminated.
9 LED RF Output
When the RF output is active this LED on the front panel is illuminated to indicate that a test signal is
applied to the test object.
10 RF-Output
At this output the RF power is available. The 6dB-attenuator is connected via coaxial cable. For conducting
tests together with CDN’s, EM clamps or current injection clamps, the generator must always be loaded
with a 6dB-attenuator as per IEC 61000-4-6 (see chapter Test Setup).
11 Current Probe Input
For tests with a coupling clamp where the EUT current has to be monitored, the current probe can be
connected to this input.
ATTENTION: Do not connect the RF output directly to this input otherwise the
CWS500 might damage.

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 12 / 47
4.2.
Rear View
Figure 4.2: Rear side CWS 500N1.3
1 Bridge AMP OUT –Coupler IN
2 Air output
3 Bridge SG OUT –AMP IN
4 Safety Circuit
5 Power On Switch and fuse
6Power selector 115V –230V
7IEEE Interface
8 USB Serial Interface
9 Remote Control Connector
10 Fail 1 Detection "Stop"
11 Fail 2 Detection "Pause"
1 Amp OUT / Coupler IN
Bridge for connect the amplifier output to the dual directional coupler.
2 Air output
Air output of the heated air of the CWS 500N1.x generator. For sufficient cooling time, take care that at
least a 20 cm free space is behind the Air output.
3 Amp In / SG Out
The internal signal generator can control an external amplifier. Disconnect the short circuit link for this
operation. Plug the external amplifier to the connector “SG OUT”.
6 115/230V Power selector
Input power selector for input voltage 115V –230V. Switch the unit off when change the voltage in another
position.
5 Power On Switch
The switch and the main fuses are part of this box. (230V / 3.15AT or 115V / 6.3AT)
4 Safety Circuit
Only when the Safety Circuit is closed, the test can started. Opening the Safety Circuit during a test will
interrupt the RF amplifier power and stop the test.
8 USB Interface
USB interface “USB B” connector for remote control the CWS 500N1.x generator. The internal RS 232
interface is converting to USB standard. Therefore, the user must set the same Baud rate in the device and
control software.
Using the USB interface the user can have emc problems during tests our experiences says, that usually
the computer USB port is disturbed by interference’s. Therefore, use a high quality USB cable (USB 2.0
standard).
7 IEEE 488 Parallel Interface
IEEE 488 interface with IEEE connector.

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 13 / 47
Figure 4.3: Rear side CWS 500N1.4
1 Bridge AMP OUT –Coupler IN
2 Air output
3 Bridge SG OUT –AMP IN
4 Safety Circuit
5 Power On Switch and fuse
6Power selector 115V –230V
7IEEE Interface
8 USB Serial Interface
9 Remote Control Connector
10 Fail 1 Detection "Stop"
11 Fail 2 Detection "Pause"
9 CN Remote Control Connector
Not used.
10 FAIL 1 Fail Detection (TEST STOP)
The BNC input FAIL 1 is for failure detection on the EUT. If the input is set to ground (chassis), the
CWS 500N1.x generator stops the actual test routine and terminates the test. It is not possible to continue
the test routine.
A complete restart of the routine will be necessary. The message "FAIL 1" indicated on the LCD-Display as
well as in the icd.control software.
11 FAIL 2 Fail Detection
The BNC input FAIL 2 is for failure detection on the EUT. If the input is set to ground (chassis), a failure
event detects, and the test continues normally. After 10 FAIL 2 events the program will stop and the
message „FAIL 2 : 10” indicates on the LCD-Display as well as in the icd.control software.
Minimum event time for FAIL 1 and FAIL 2
The minimum time duration for a fail event must be >100 ms. After a fail event a pause of minimum 100 ms
is required before the next Fail appears.
Fig 4.4

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 14 / 47
5.
Manual Operation
5.1.
Basic Operations
The simulator operates by an easy menu control system. Seven
function keys are available to select parameters and functions. All
functions are indicated on the display.
Fig 5.1
The selected parameter is blinking and can be changed by turning the knob (incr./ decrease.).
 : Select the digit to change with the cursor ( ).
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.
Fig 5.2
Start-up display
CWS 500N1.3
Continuous Wave Simulator
RF 9 kHz –1 GHz
V 8.50 SWN: 001234
Generator Model
Frequency Ranges
The version number and the software number SWN used for tracing purposes. The report and calibration
certificates list these numbers. Even the software report generator lists these numbers.
Page 1 (Main Menu)
MAIN MENU
F1 : Test Routines
F2 : Calibration and Saturation Test
F3 : Freestyle mode 9kHz –1 GHz
F7 : Service
F1
F2
F3
F4
F5
F6
F7
F1 Test Routines
The firmware includes the test routines for IEC 61000-4-6 standard.
F2 Calibration and Saturation Test
This menu includes calibration routines for the test. The amplifier saturation-check routine with 5.1dB higher
level, than calibrated, completes the Ed. 4 requirement. The functions are the same as selecting Cal within a
test routine.
F3 Freestyle Mode 9 kHz –1 GHz
This menu operates the internal signal generator manually. For frequencies from 400 MHz up to 1 GHz (N1.3),
or 9 kHz-100 kHz and 300 MHz –1 GHz ( N4.x), external amplifier is used.
F7 Service
Select and displays the setup.

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 15 / 47
Page 2 (Test Routines)
TEST ROUTINES
F1 : Quickstart
F2 : User test routines
F3 : Standard test
F1
F2
F3
F4
F5
F6
F7
F1 Quickstart
Menu offers easy and fast operation, with individual parameter settings.
F2 User Test Routines
The user saves and recalls individual specific test routines. He can select standard routines or special functions
such as automatic change of voltage or frequency during a test routine.
F3 Standard test
The user can call up the standard routines as per IEC 61000-4-6 level 1 - 3 and start them immediately.
The CWS 500N1.x delivers preprogrammed values of the actual standard IEC 61000-4-6 / EN 61000-4-6.
5.1.1.
Parameter definition for the following menus
V
Voltage level Uo [V] The open- circuit test level (e.m.f.) of the unmodulated disturbing signal.
Mod
Modulation of the disturbing signal (OFF, 2Hz, 400Hz, 1000Hz, pulsed)
f
Output frequency of the disturbing signal [ MHz ]
td
Dwell time for the applied disturbing signal. 0.0s, 0.3s...9999.9s ( pulsed 3s...9999.9s )
tr
Rest time where no disturbing signal is applied.
CAL
Calibration files of the applied CDN (F1...F5). The CWS 500N1.x is capable to store the calibration
data in five internal memory files.
CP
Calibration file of the current probe. Download the file with the ICD software.
5.1.2.
Modulation
Figure 6.3 shows an example of different
modulation settings of CWS 500N1.x.
The 80% modulation is selectable with a
frequency of 2Hz, 400Hz, 1000Hz.
Fig 5.3 : Unmodulated 80% AM Pulse modulation

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 16 / 47
5.2.
Quickstart
Easy and very fast operation of all standard functions of the equipment.
Page 3 (Show Parameters) Page 4 (Change)
Quickstart
Quickstart
V = 10,0V Mod = 1kHz
f = 5.0MHz Cal = F1
CP = F-33-2
V Mod f Cal CP
START CHANGE CAL
10 ON 10.0 F1 F-51
F1
F2
F3
F4
F5
F6
F7
F1
F2
F3
F4
F5
F6
F7
Press START to begin testing.
Press CHANGE and the change the actual parameters. Selecting a parameter to change will display the range.
Press CAL for calibrate the system.
The test begins by pressing START. The blinking parameter can be changed with the knob inc./dec.
Use the cursor keys (

) to select other parameters. By pressing STOP the test will be stopped and on the
last line of the display it will be indicated that the test has been stopped.
Test Break
STARTCHANGE CONT. CAL
F1
F2
F3
F4
F5
F6
F7
Pressing any of the function keys will display the functions START, CHANGE, CONTINUE, SAVE * or CAL.
Selecting another function than CONTINUE will definitely stop the test routine. Pressing START restarts the test
from the beginning.
While the test procedure is in progress the settings of CAL and CP cannot be changed.
* CONT and SAVE are not available in the Menu Quick Start.

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 17 / 47
5.3.
User Test Routines
The user can change, save and recall own specific test routines based on IEC 61000-4-6. All special functions
and routines are stored in this part of the user menu.
Page 3 (Selection of the function) Page 4 (Select store)
USER TEST ROUTINES
VOLTAGE - SWEEP
F1 : Voltage-Sweep
F1 : Store F1
F2 : Frequency-Sweep
F2 : Store F2
F3 : Dwell-Time-Sweep
F1
F2
F3
F4
F5
F6
F7
F1
F2
F3
F4
F5
F6
F7
Each of these special functions can offer two test routines, which can be stored.
After selecting, one of the stored test files the test parameters shows in the display.
The user has to define the memory. The software will ask whether to overwrite the existing procedure or not.
5.3.1.
Voltage Sweep
Change the test level from V1 to V2. After the dwell time td and the pause time tr changes the test level by V
until reaching the set value for V2.It is not necessary that V1 is smaller than V2.
After selecting one of the stored test files, the test parameters show on the display.
Page 5 (Show Parameters)
VOLTAGE - SWEEP Store F1
V1 = 1.0 V V2 = 10.0V
V = 1.0 V Mod = 1kHz
f = 10.0 MHz td = 2.0s
tr = 1.0 s Cal= F2
CP = F-51
START CHANGE SAVE CAL
F1
F2
F3
F4
F5
F6
F7
Fig 5.4
All functions and limitations are the same as those of Quick Start. The function SAVE will store the new
parameters of a test file.
5.3.2.
Frequency Sweep
Changes the test frequency from frequency f1 to f2. After the dwell time td and the pause time tr, changes the
test frequency by

f until reaching the set value for f2. The step size

f is being either a fixed frequency value or
a percentage of the preceding frequency value.
After selecting, one of the stored test files the display shows the test parameters.
Page 5 (Show Parameters)
FREQUENCY –SWEEP Store F1
V = 10.0 V Mod = 1 kHz
f1 = 0.15MHz f2 = 80.0MHz
f = 10.0 % td = 2.0s
tr = 1.0 s Cal = F2
CP = F-51
START CHANGE SAVE CAL
F1
F2
F3
F4
F5
F6
F7
Fig 5.5
All functions and limitations are the same as those of Quick Start. The function SAVE will store the new
parameter of a test file.

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 18 / 47
5.3.3.
Dwell Time Sweep
The dwell time changes from td1 to td2. After the dwell time td and the pause time tr, the dwell time is changed
by td until the set value for td2 is reached.
Page 5 (Show Parameters)
DWELL TIME SWEEP Store F1
V = 10.0 V Mod = 1 kHz
f1 = 0.15MHz td1 = 1.0 s
td2 = 5.0 s td = 1.0 s
tr = 1.0 s Cal = F2
CP = F-51
START CHANGE SAVE CAL
F1
F2
F3
F4
F5
F6
F7
Fig 5.6
After selecting, one of the stored test files the display shows the test parameters.
All functions and limitations are the same as those of Quick Start. The function SAVE will store the new
parameter of a test file.
5.4.
Standard Test Routines according to IEC 61000-4-6
The display shows a list of different test levels. The CWS 500N1.x offers preprogrammed values of the actual
standards IEC 61000-4-6 / EN 61000-4-6.
Page3 (Standard Test Levels) Page 4 (Show Parameters)
STANDARD TEST
Standard test routine Level 3
V = 10.0 V Mod = 1 kHz
F1 : Level 1 1.0V
f1 =0.150 MHz f2 = 80.0 MHz
F2 : Level 2 3.0V
f =1.0 % td = 1.0 s
F3 : Level 3 10.0V
Cal =F2
F4 : Level X - Level Y
START CHANGE SAVE CAL
F1
F2
F3
F4
F5
F6
F7
F1
F2
F3
F4
F5
F6
F7
With the function keys, selects the desired Level.
The functions START, CHANGE and CAL are the same as those of Quick Start. The function key CHANGE can
only handle the dwell time, frequency step, calibration file and the current probe file (the frequency step size can
be either a fixed frequency value or a percentage of the preceding frequency value). All other parameters are
according to the standard.
If the standard changes in the future, the fixed parameters are adjustable under Service / Change Standard
Parameters.
The function key F4 selects a procedure that starts at test Level X and stops at test Level Y (X

Y).
With the help of the Level X –Level Y test routine,
special requirements, e.g. those according to the
Generic Standard IEC 61000-6-2, tests easily.
Simply change the frequency and the voltage under
Service/Change Standard within the Main Menu for each
Level. By starting the program Level X –Level Y with
X=1 and Y=3 the Generic Standard IEC 61000-6-2 can
be tested automatically.
Fig 5.7: Test procedure according to IEC 61000-6-2

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 19 / 47
5.5.
Calibration and Saturation test Menu
After selecting CAL in any of the internal programs of the CWS 500N1.x or selecting the “Calibration and
Saturation Test” in the main menu, the display will show the calibration stores.
Structure of the calibration Menu
MAIN MENU
F1 : Test Routines
F2 : Calibration and Saturation Test
F3 : Freestyle mode 9kHz – 1 GHz
F7 : Service
Calibration and Amplifier Saturation-Test
F1 : Calibration
F2 : Amplifier Saturation Test
Calibration
Which Calibration Stroe should
be overwritten?
F1 : Calibration Store F1 valid
F2 : Calibration Store F2 valid
F3 : Calibration Store F3 valid
F4 : Calibration Store F4 valid
F5 : Calibration Store F5 valid
Calibration
Calibration Store F1 .. F5
will be overwritten
Start
Kalibration
Calibration Store F1 … F5
Calibration in Progress
Fail1 Kalibration stopped; Fail2 Calibration interrupted;
Calibration finished; Kalibration out of range; Calibration
interrupted
Break f=xxx KHz
Amplifier Saturation-Test
U = 10.0 V
Cal = F1
START AENDERN
Amplifier Saturation-Test
U = 10.0 V Calibration Store F1
Amplifier Saturation-Test running
Fail1 Saturation-Test stopped; Fail2 Saturation-Test
stopped; Amplifier Saturation -Test finidhed; Amplifier
Saturation-Test interrupted; Amplifier Saturation-Test Fail
Break fwd = x.xx V; f=xxx KHz
Calibration / Amplifier Saturation-Test
…
Pass / Fail
F2
F2
F1
...
F5
F1
F1
F1 /
Test End
F1 /
Test End
Amplifier Saturation-Test
No valid calibration found
Please start first a calibration
OK
Amplifier Saturation-Test
U Cal
10 F1
F1 F2
F1
ESC
EXIT
MAIN MENU
Return to last menu

EM TEST (Switzerland) GmbH CWS500 N1.3 / N1.4
User manual V 1.01 20 / 47
Main Menu Calibration and Saturation
Calibration and Saturation Test
F1 : Calibration
F2 : Amplifier Saturation Test
F1
F2
F3
F4
F5
F6
F7
5.5.1.
Calibration
Menu Calibration Calibration Procedure
Calibration
Calibration
Which calibration - store should
be overwritten?
Calibration - Store F2
F1 : Calibration Store F1 valid
Will be overwritten
F2 : Calibration Store F2 valid
F3 : Calibration Store F3 valid
F4 : Calibration Store F4 valid
F5 : Calibration Store F5 invalid
Start
F1
F2
F3
F4
F5
F6
F7
F1
F2
F3
F4
F5
F6
F7
After selecting one of the calibration stores the user may start the calibration. The firmware will ask whether to
overwrite the existing calibration store or not.
A new CAL routine will overwrite the selected store F1 / F5. The operator has to confirm that he wants to
overwrite the existing data.
Calibration
Calibration Store F2
Calibration in Progress
Break f = 000.100 MHz
F1
F2
F3
F4
F5
F6
F7
During the calibration the display shows the actual calibration frequency
By pressing BREAK, the calibration will be stopped and the firmware will restore the calibration data from the
previous calibration.
If the CWS 500N1.x is unable to complete the calibration procedure (out of range, calibration setup incorrect or
incomplete, etc.) the firmware will restore the calibration data from the previous calibration.
Typical calibration data files are stored in the software icd.control