Rohde & Schwarz ENV216 User manual

R&S®ENV216
Two Line V-Network
User Manual
5201669314
Version 05
(Â1Ðë>)

This document describes the following R&S®ENV216 models:
●R&S®ENV216 (3560.6550.11)
●R&S®ENV216 (3560.6550.12)
●R&S®ENV216 (3560.6550.13)
●R&S®ENV216 (3560.6550.14)
●R&S®ENV216 (3560.6550.15)
●R&S®ENV216 (3560.6550.16)
© 2022 Rohde & Schwarz GmbH & Co. KG
Muehldorfstr. 15, 81671 Muenchen, Germany
Phone: [phone] - 0
Email: [email protected]
Internet: www.rohde-schwarz.com
Subject to change – data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
5201.6693.14 | Version 05 | R&S®ENV216
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol , e.g. R&S®ENV216 is indicated as
R&S ENV216.

Safety and regulatory information
R&S®ENV216
3User Manual 5201.6693.14 ─ 05
1 Safety and regulatory information
The product documentation helps you use the product safely and efficiently. Follow the
instructions provided here and in the following chapters.
Intended use
The R&S ENV216 Two Line V-Network is used to measure the unsymmetric disturb-
ance voltage on AC mains and DC lines.
Its principal tasks are:
●To supply the equipment under test with mains voltage
●To provide a standardized load impedance
●Defined transmission of the noise voltage generated by the equipment under test
to the EMI test receiver
●Isolation of the test circuit from interference of the power source.
The R&S ENV216 Two Line V-Network is constructed using air-core inductances and
conforms with the requirements of CISPR 16-1-2 (EN 55016-1-2).
Target audience
Only connect, set up and use LISNs if you are an electrically skilled person. Electrically
skilled persons have the relevant education and experience to enable them to perceive
risks and to avoid hazards that electricity can cause. Follow the safety instructions pro-
vided in Chapter 1.1, "Safety instructions", on page 3 and the additional information
provided during setup or operation procedures.
Where do I find safety information?
Safety information is part of the product documentation. It warns you of potential dan-
gers and gives instructions on how to prevent personal injury or damage caused by
dangerous situations. Safety information is provided as follows:
●In Chapter 1.1, "Safety instructions", on page 3. The same information is provi-
ded in many languages as printed "Safety Instructions". The printed "Safety
Instructions" are delivered with the product.
●Throughout the documentation, safety instructions are provided when you need to
take care during setup or operation.
1.1 Safety instructions
Products from the Rohde & Schwarz group of companies are manufactured according
to the highest technical standards. To use the products safely, follow the instructions
provided here and in the product documentation. Keep the product documentation
nearby and offer it to other users.
Use the line impedance stabilization network (LISN) only for its intended use and within
its performance limits. Intended use and limits are described in the product documenta-
Safety instructions

Safety and regulatory information
R&S®ENV216
4User Manual 5201.6693.14 ─ 05
tion such as the data sheet, manuals and the printed safety instructions. If you are
unsure about the appropriate use, contact Rohde & Schwarz customer service.
LISNs are designed according to CISPR 16-1-2 (EN 55016-1-2) and do not meet the
permissible limit for the leakage current as defined in EN 61010-1. In addition, LISNs
do not provide basic insulation, rated as measurement category II (protection class 1).
Therefore, only connect, set up and use LISNs if you are an electrically skilled person.
Electrically skilled persons have the relevant education and experience to enable them
to perceive risks and to avoid hazards that electricity can cause.
These users also need sound knowledge of at least one of the languages in which the
user interfaces and the product documentation are available.
LISNs can pose hazardous and even life-threatening risks:
●Electrical shock because of a high leakage current and live parts if the LISN is not
grounded.
●Electrical shock because the LISN does not have a fuse in the measuring circuit.
●Burns and fire hazard caused by overheating of the housing. Overheating can
occur if the ventilation is insufficient or if the cables' cross-section is too small.
If any part of the LISN is damaged or broken, stop using the LISN. Never open the cas-
ing of the LISN. Only service personnel authorized by Rohde & Schwarz are allowed to
repair the LISN. Contact Rohde & Schwarz customer service at http://www.rohde-
schwarz.com/support.
Lifting and carrying the product
Look up the weight in the data sheet. If the product is heavy, you cannot move or carry
it on your own. A single person can only carry a maximum of 18 kg safely, depending
on age, gender and physical condition. To move the product safely, you can also use
lifting or transporting equipment such as lift trucks or forklifts. Follow the instructions
provided by the lifting or transporting equipment manufacturer.
Choosing the operating site
Only use the LISN indoors in rooms equipped with a protective earth connection (for
example EMC test rooms). The product casing is not waterproof and water that enters
the casing can electrically connect the casing with live parts. This can lead to electric
shock, serious personal injury or death if you touch the casing.
You can operate the product up to an altitude of 2000 m above sea level. The product
is suitable for pollution degree 2 environments where nonconductive contamination can
occur.
For more information on environmental conditions such as ambient temperature and
humidity, see the data sheet.
Setting up the product
Always place the LISN on a stable, flat and level surface with the bottom of the LISN
facing down. Make sure that the air supply is not obstructed from any side.
Place the LISN on a nonflammable base, for example, a metal plate, to prevent a fire if
the ventilation system fails or if it gets too hot.
Safety instructions

Safety and regulatory information
R&S®ENV216
5User Manual 5201.6693.14 ─ 05
If the LISN has foldable feet, always fold the feet completely in or out to ensure stabil-
ity. The feet can collapse if they are not folded out completely or if the LISN is moved
without lifting it. The foldable feet are designed to carry the weight of the LISN, but not
an extra load.
Observe the applicable national regulations and standards as part of the installation
process.
Protective ground connection
Always establish a protective ground connection before connecting the LISN to a
power source. A protective ground protects you from electrically live parts on the cas-
ing caused by high leakage currents. High leakage currents can cause electric shock,
serious personal injury or death if you touch the casing.
●Only use ground cables that have a sufficient cross-section that complies with
VDE 0100-540 part 5-54 (IEC 60364-5-54).
●Validate that the ground connection is safe.
●The ground connection must remain until you have disconnected the LISN from the
power source.
●If the LISN has an auxiliary voltage, secure the test setup with a second protective
ground. The second ground connection protects you from live parts if the ground
connection of the auxiliary cable fails.
Connecting to power
The product is an overvoltage category II product and has to be connected to a fixed
installation used to supply energy-consuming equipment such as household applian-
ces and similar loads. Electrically powered products have risks, such as electric shock,
fire, personal injury or even death.
Observe the protective measures given by VDE 0100-410 (IEC60364-4-41) while
working with the LISN.
Take the following measures for your safety:
●Use double-insulated connecting cables with an appropriate minimum cross-sec-
tion and an appropriate minimum voltage rating.
Select the cable based on the maximum power consumption of the device under
test, the fuse rating of the building installation and the cable length. When installing
the supplied cable sockets, observe the assembly instructions and the require-
ments of the manufacturer.
●By design, LISNs do not have a fuse in the measuring circuit. Therefore, you have
to make sure that the operating circuit between the power supply and the power
connector of the LISN is fused correctly.
●Only use the power cable delivered with the product. It complies with country-spe-
cific safety requirements.
●Only use intact cables and route them carefully so that they cannot be damaged.
Check the power cables regularly to ensure that they are undamaged. Also ensure
that nobody can trip over loose cables.
●Only connect the product to a power source with a maximum fuse protection
according to the datasheet.
Safety instructions

Safety and regulatory information
R&S®ENV216
6User Manual 5201.6693.14 ─ 05
●Ensure that you can disconnect the product from the power source at any time.
Pull the power plug to disconnect the product. The power plug must be easily
accessible. If the product is integrated into a system that does not meet these
requirements, provide an easily accessible circuit breaker at the system level.
●If the LISN has an auxiliary voltage: Before taking the LISN auxiliary voltage into
operation, ensure that the voltage and frequency indicated on the product match
the available power source. If the values do not match, contact Rohde & Schwarz
customer service.
If the ventilation system is powered by an auxiliary voltage, always connect the
auxiliary voltage before taking the LISN into operation. Operation without the venti-
lation system leads to overheating and can cause a fire.
●If the LISN can be powered by an external power supply, make sure that the power
supply complies with the requirements for reinforced/double insulation in accord-
ance with DIN/EN/IEC/UL/CSA 61010-1, DIN/EN/IEC/UL/CSA 60950-1 or
DIN/EN/IEC/UL/CSA 62368-1.
Using accessories
Select accessories that are suitable for the product and the measurement task, espe-
cially if they are from 3rd party manufacturers.
Measurement accessories, such as current clamps or artificial hands must comply with
the measurement category of your test setup.
Cleaning the product
Use a dry, lint-free cloth to clean the product. When cleaning, keep in mind that the
casing is not waterproof. Do not use liquid cleaning agents.
Meaning of safety labels
Safety labels on the product warn against potential hazards.
Potential hazard
Read the product documentation to avoid personal injury or product damage.
Heavy product
Be careful when lifting, moving or carrying the product. Carrying the product requires a suffi-
cient number of persons or transport equipment.
Electrical hazard
Indicates live parts. Risk of electric shock, fire, personal injury or even death.
Hot surface
Do not touch. Risk of skin burns. Risk of fire.
Protective conductor terminal
Connect this terminal to a grounded external conductor or to protective ground. This connec-
tion protects you against electric shock if an electric problem occurs.
Safety instructions

Safety and regulatory information
R&S®ENV216
7User Manual 5201.6693.14 ─ 05
Warning: laser beam
The product contains a laser.
Avoid exposure to direct or reflected laser beam.
1.2 Labels on the product
Labels on the casing inform about:
●Personal safety, see "Meaning of safety labels" on page 6
●Product and environment safety, see Table 1-1
Table 1-1: Labels regarding product and environment safety
Labeling in line with EN 50419 for disposal of electrical and electronic equipment after the prod-
uct has come to the end of its service life.
Grounding terminal (earth ground contact)
Chassis grounding terminal
1.3 Warning messages in the documentation
A warning message points out a risk or danger that you need to be aware of. The sig-
nal word indicates the severity of the safety hazard and how likely it will occur if you do
not follow the safety precautions.
DANGER
Imminently hazardous situation. Will result in death or serious injury if not avoided.
WARNING
Potentially hazardous situation. Could result in death or serious injury if not avoided.
CAUTION
Potentially hazardous situation. Could result in minor or moderate injury if not avoided.
NOTICE
Potential risks of damage. Could result in damage to the supported product or to other
property.
Warning messages in the documentation

Safety and regulatory information
R&S®ENV216
8User Manual 5201.6693.14 ─ 05
1.4 Korea certification class B
이 기기는 가정용(B급) 전자파 적합기기로서 주로 가정에서 사용하는 것을 목적으로 하
며, 모든 지역에서 사용할 수 있습니다.
Korea certification class B

Preface
R&S®ENV216
9User Manual 5201.6693.14 ─ 05
2 Preface
2.1 Introduction
The R&S ENV216 Two Line V-Network is used to measure noise voltage on mains-
dependent consumers.
Its principal tasks are:
●To supply the equipment under test with mains voltage
●To provide a standardized load impedance
●Defined transmission of the noise voltage generated by the equipment under test
to the EMI test receiver
●Isolation of the test circuit from interference of the power source.
The R&S ENV216 Two Line V-Network is constructed using air-core inductances and
conforms with the recommendations of CISPR 16-1-2 (EN 55016-1-2).
Other features of the equipment include:
●Artificial Hand
●10-dB-attenuator in the RF path
●Switchable 150-kHz-highpass filter
●Switchable Pulse voltage limiter at the measurement output
●Remote control port
●External power supply via plug-in power supply for tests on non-standardized AC
and DC voltages
The network may be operated manually or by remote control with TTL levels.
Introduction

Preface
R&S®ENV216
10User Manual 5201.6693.14 ─ 05
2.2 Block diagram
2.3 Unpacking and checking
Remove the two protective hoods from the front and rear and inspect the device care-
fully for any damage.
If the device is damaged, you should notify the responsible freight carrier immediately
and retain all items of packaging in order to support your complaint. The original pack-
aging is also useful for use when shipping or transporting at a later date. Keep at least
the two protective hoods for the front and rear to protect the R&S ENV216 against
damage to the control elements and connections.
Unpacking and checking

Instrument tour
R&S®ENV216
11User Manual 5201.6693.14 ─ 05
3 Instrument tour
3.1 Front panel tour
1 = EUT Socket
2 = Reference ground connectors (4-mm-jacks)
3 = L1 LED, phase indicator
4 = ON LED
5 = Remote LED
6 = N key
7 = L1 key
8 = 150 kHz highpass
9 = Limiter toggle
10 = Artificial hand connector
11 = RF output connector
EUT socket (1)
Socket for connecting the equipment under test.
For country-specific sockets, see Chapter A, "Country-specific Connector Models",
on page 30.
Reference ground (2)
4-mm-jacks for connecting to the equipment under test. See also Chapter 4.6, "Con-
necting the equipment under test", on page 19.
L1 phase indicator (3)
Indicator showing the correct assignment of L1 and N to the measurement channels.
LED "L1" lights up if the polarity of the mains plug is correct. See also Chapter 4.3,
"Connecting to power", on page 16.
Front panel tour

Instrument tour
R&S®ENV216
12User Manual 5201.6693.14 ─ 05
ON LED (4)
This LED shows that the R&S ENV216 is powered up.
Remote LED (5)
This LED shows that a remote control function is active. See also Chapter 5, "Remote
control", on page 24.
This LED goes off automatically when all remote control functions are inactive or the
port is not occupied.
L1, N (6), (7)
The measurement path is selected manually using the "L1" and "N" keys. When either
key is pressed, it releases the other. They are both locked when the "Remote" LED is
lit. The associated LEDs always indicate the active path, even when this has been
selected using the remote control. See also Chapter 5, "Remote control", on page 24.
150 kHz HP (8)
With this toggle key, a 150 kHz highpass filter can be switched into the measurement
path. This enables interference voltages in the low-frequency range, e.g. from switch-
mode power supplies, to be suppressed. The associated LED lights up when the filter
is active. This key is locked when the "Remote" LED is lit. See also Chapter 5,
"Remote control", on page 24
Limiter (9)
With this toggle key "Limiter" the internal protection diodes at the measurement output
"RF Output" can be turned off. The protection diodes act as an input voltage limiter
(transient limiter) attached before the "RF Output" output to protect measurement
equipment from high positive and negative voltage spikes (>6 V). By turning off the
protection diodes higher interference voltages can be measured.
The "Limiter ON" LED lights up when the protection diodes are active.
The default setting, e.g. after switching on, is "ON".
The limiter function is only locally switchable by the toggle key "Limiter".
CAUTION! When the protection diodes are turned off, ensure that the connected mea-
surement devices cannot be damaged by high voltage spikes.
Artificial hand connector (10)
The "Artificial Hand" enables the effects of the human hand to be simulated. Metal
housing parts of the equipment under test that are usually touched with the hand can
be connected to this jack. The hand simulation consists of connection in series of a
510-Ω-resistor and a 220-pF-capacitor. The jack is a 4-mm-terminal clamp. See also
Chapter 4.9, "Sample measurement", on page 22 for more information.
RF output connector (11)
The "RF Output" socket is the RFI voltage measurement output for connecting the test
receiver. The RFI voltage spectrum of the selected path is attenuated at the "RF Out-
put" by 10 dB. The 10-dB-attenuator and a transient suppressor are permanently inser-
ted. A 150-kHz-highpass filter can also be switched into the path either manually or by
remote control. The socket is an "N" type.
The output impedance is 50 Ω.
Front panel tour

Instrument tour
R&S®ENV216
13User Manual 5201.6693.14 ─ 05
3.2 Rear panel tour
1 = Remote control connector
2 = Protective grounding bolt
3 = Mains connection cable
4 = Reference ground rail
5 = External power supply socket
Remote control connector (1)
Remote control port. This connection is used to enable remote control of measurement
path "L1" or "N" and the "150 kHz HP" integral filter. See also Chapter 5, "Remote con-
trol", on page 24.
Protective ground connection (2)
The connection, a 6-mm-threaded bolt with nut is used only for protective grounding. It
is not suitable for use as a reference ground.
Mains connection cable (3)
The mains connection cable is primarily used to supply power to the equipment under
test.
When voltages under about 90 VAC are connected, and for all DC voltages, the auxili-
ary voltage for the ENV control circuit must be supplied externally by the plug-in power
supply included with the device.
Reference ground rail (4)
The ground rail that is included on the side of the device is used exclusively for con-
necting a reference ground. A broad metal foil can be placed over it to create a low-
inductance connection with the test setup.
Rear panel tour

Instrument tour
R&S®ENV216
14User Manual 5201.6693.14 ─ 05
External power supply socket (5)
Connection for the plug-in power supply. The control circuitry of the R&S ENV216 is
powered via the "External Power Supply" socket, if the R&S ENV216 is to be used to
conduct measurements of AC voltages below 90 VAC or on DC voltages up to 28
VDC. See also Chapter 4.4, "Operating on non-standardized voltages", on page 18.
Rear panel tour

Preparing for use
R&S®ENV216
15User Manual 5201.6693.14 ─ 05
4 Preparing for use
Before the R&S ENV216 is set up for operation, read the Safety Instructions carefully.
4.1 Setting up the R&S ENV216
Putting the R&S ENV216 into operation
Execute the following steps in the order as described. Additional important information
is provided in separate chapters that are linked within each step.
1. Place the R&S ENV216 on a non-flammable surface (e.g. metal plate, marble
slab).
2. Remove all surrounding items that could obstruct the ventilation openings of the
R&S ENV216.
3. Establish an auxiliary protective ground connection of the R&S ENV216 that is
independent from the mains supply.
4. Check if the voltage of the mains supply corresponds to the specified operation
range of the R&S ENV216. Otherwise an external power supply can be necessary.
5. DANGER! Risk of electric shock. Before you connect the V-network to the power
source, you have to connect the R&S ENV216 to a protective ground terminal. An
unearthed R&S ENV216 is live. Touching a live electrical device causes serious
personal injury, or even death.
The protective ground connection must remain until you have disconnected the V-
network from the power supply.
Connect the R&S ENV216 to the mains supply.
6. Connect the equipment under test to the R&S ENV216.
7. Connect the test receiver to the R&S ENV216.
Establish a reference ground connection for RF noise voltage measurement.
8. Run the measurement.
Taking the R&S ENV216 out of operation
Execute the following steps in the order as described:
1. DANGER! Risk of electric shock. Always disconnect the R&S ENV216 from the
power source before disconnecting it from anything else, especially the protective
ground. An unearthed R&S ENV216 is live. Touching a live electrical device causes
serious personal injury, or even death.
The protective ground connection must remain until you have disconnected the V-
network from the power supply.
Disconnect the R&S ENV216 from the mains supply.
Setting up the R&S ENV216

Preparing for use
R&S®ENV216
16User Manual 5201.6693.14 ─ 05
2. Disconnect the auxiliary protective ground connection of the R&S ENV216.
4.2 Connecting to protective ground
Before the R&S ENV216 is put into operation, the network must be connected to an
additional conductor that is compliant with VDE0100.
Users must be aware that it is possible for socket connections and grounding conduc-
tors to become disconnected. A further grounding conductor with adequate diameter
must be connected between a grounding conductor connection for the measurement
area and the grounding bolt (1) on the R&S ENV216.
4.3 Connecting to power
Connection to the mains power supply is provided by a permanently attached mains
cable.
Connecting to power

Preparing for use
R&S®ENV216
17User Manual 5201.6693.14 ─ 05
The device is not equipped with an ON / OFF switch. Instead, the device plug of the
connecting cable serves for disconnection from the AC supply (see "Connecting to
power" on page 5).
1. DANGER! Risk of electric shock. Before you connect the V-network to the power
source, you have to connect the R&S ENV216 to a protective ground terminal. An
unearthed R&S ENV216 is live. Touching a live electrical device causes serious
personal injury, or even death.
The protective ground connection must remain until you have disconnected the V-
network from the power supply.
Connect the R&S ENV216 to the mains power supply.
2. If the phase connection is made correctly, LED L1 (1) must light up.
If it does not:
● For mains plugs with symmetrical grounding connection (e.g. Schuko plugs)
the plug's polarity must be reversed.
● For mains plugs with asymmetrical grounding connection, phase L1 and neutral
N must be swapped by reconnecting.
● For country-specific sockets, see Chapter A, "Country-specific Connector Mod-
els", on page 30.
The plug on the mains cable can be adapted using a country-specific adapter.
However, it must be ensured that the adapter has a power rating of at least 16 A.
Assembly must be carried out exclusively by qualified technicians.
Connecting to power

Preparing for use
R&S®ENV216
18User Manual 5201.6693.14 ─ 05
4.4 Operating on non-standardized voltages
For measurement tasks on voltages that are outside the normal mains voltage ranges
(e.g. <90 VAC) and operation on DC (max. 28 VDC) the R&S ENV216 control circuit is
powered by an external power supply.
1. Make sure that the DC voltage does not exceed 28 VDC. Higher DC voltages may
damage the equipment.
2. DANGER! Risk of electric shock. Make sure that the external power supply com-
plies with the requirements for reinforced/double insulation in accordance with
DIN/EN/IEC/UL/CSA 61010-1, DIN/EN/IEC/UL/CSA 60950-1 or
DIN/EN/IEC/UL/CSA 62368-1. An external power supply without reinforced/double
insulation is live in case of failure. Touching a live electrical device causes serious
personal injury, or even death.
Connect the external power supply to the "EXT. POWER SUPPLY" socket (1).
The input is reverse voltage protected.
Operating on non-standardized voltages

Preparing for use
R&S®ENV216
19User Manual 5201.6693.14 ─ 05
4.5 Connecting to reference ground
The network is connected to the PE grounding connection for the mains power supply
through the mains cable, but this is not adequate for use as a reference ground in HF
noise voltage measurement.
The reference ground used can be attached flat to the grounding rail (2) on the side of
the device by a broad sheet metal with three metric M4 screws (1).
1= Metric M4 screw
2 = Grounding rail
In order to prevent RF interference emitted by the mains grounding conductor from
reaching the reference mass, the grounding conductor and the reference mass are
decoupled by a PE-choke. This choke should not be bridged by the EMI test receiver,
which is also connected to the measurement reference ground. Therefore, either an
isolated or a battery-powered receiver must be used, or a PE choke must also be
placed on the PE connection of the receiver.
4.6 Connecting the equipment under test
The equipment under test is connected via the socket (1) on the front of the
R&S ENV216. Constant current must not exceed 16 A. For ambient temperatures
>35°C, external air ventilation is recommended.
The RFI voltage measurement plane is located on the front panel of the R&S ENV216.
The impedance gradient of connections N and L1 of the socket is measured against
the reference ground connectors (4-mm-jacks) to the left and right (2) of the socket (1).
Connecting the equipment under test

Preparing for use
R&S®ENV216
20User Manual 5201.6693.14 ─ 05
4.7 Connecting the test receiver
The test receiver is connected to the N connector RF OUTPUT (1) by a 50-Ω-coaxial
cable.
Connecting the test receiver