R&S ENV216 User manual

R&S®ENV216
Two Line V-Network
User Manual
User Manual
Version 04
5201669314
(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)
© 2020 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: [phone] - 0
Fax: [phone]
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 04 | 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 Instructions for LISNs
R&S®ENV216
3User Manual 5201.6693.14 ─ 04
1 Safety Instructions for LISNs
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 prod-
uct documentation nearby and offer it to other users.
Use the LISN only for its intended use and within its performance limits. Intended
use and limits are described in the product documentation such as the data
sheet, manuals and the safety instructions brochure. If you are unsure about the
appropriate use, contact Rohde & Schwarz customer service.
Line impedance stabilization networks (LISNs) are designed according to CISPR
16-1-2 (EN 55016-1-2) and do not meet the permissible limit for the leakage cur-
rent as defined in EN 61010-1. In addition, LISNs do not provide basic insulation,
rated as measurement category II (protection class 1). Therefore, only electrically
skilled people may connect, set up and use LISNs.
LISNs can thus 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 cir-
cuit.
●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.
These users also need sound knowledge of at least one of the languages in
which the user interfaces and the product documentation are available.
If any part of the LISN is damaged or broken, stop using the LISN. Never open
the casing of the LISN. Only service personnel authorized by Rohde & Schwarz
are allowed to repair the LISN. Contact Rohde & Schwarz customer service at
http://www.customersupport.rohde-schwarz.com.
Lifting and carrying the product
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 physi-
cal condition. Look up the weight in the data sheet. 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 manufac-
turer.

Safety Instructions for LISNs
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4User Manual 5201.6693.14 ─ 04
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 electri-
cally 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 con-
tamination can occur.
For more information on environmental conditions such as ambient temperature
and humidity, see the data sheet.
Setting up the instrument
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.
If the instrument has foldable feet, always fold the feet completely in or out to
ensure stability. 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 instrument, but not an extra load.
Observe the applicable national regulations and standards as part of the installa-
tion 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 casing caused
by high leakage currents. High leakage currents can cause electric shock, serious
personal injury or death if you touch the casing.
Ground cables must 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.

Safety Instructions for LISNs
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5User Manual 5201.6693.14 ─ 04
The ground connection must remain until the LISN has been disconnected from
the power source.
If the LISN has an auxiliary voltage: Secure the test setup with a second protec-
tive 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 must be connected to a
fixed installation used to supply energy-consuming equipment such as household
appliances and similar loads. Be aware that electrically powered products have
risks, such as electric shock, fire, personal injury or even death.
Keep to the protective measures given by VDE 0100-410 (IEC60634-4-41) while
working with the LISN.
Take the following measures for your safety:
●Use double-insulated connecting cables with characteristics suitable for the
application:
– Appropriate minimum cross-section.
– 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 requirements 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 LISN's power connector is fused correctly.
●Only use the power cable delivered with the product. It complies with country-
specific safety requirements.
●Only use intact cables and route them carefully so that they cannot be dam-
aged. 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.
●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.

Safety Instructions for LISNs
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6User Manual 5201.6693.14 ─ 04
●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 ventilation system leads to overheating and can cause a fire.
●If the LISN can be powered by an external power supply, make sure the power
supply complies 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.
Using accessories
Select accessories that are suitable for the instrument and the measurement task,
especially if they are not manufactured by Rohde & Schwarz.
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
at least two people 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
protects you against electric shock should an electric problem occur.

Preface
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7User Manual 5201.6693.14 ─ 04
2 Preface
2.1 Introduction
The R&S ENV216 compact 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
(50 μH and 250 μH) and conforms with the recommendations of VDE0876 and
CISPR 16-1-2 / 16-2-1.
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
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8User Manual 5201.6693.14 ─ 04
2.2 Korea Certification Class B
이 기기는 가정용(B급) 전자파 적합기기로서 주로 가정에서 사용하는 것을 목적으
로 하며, 모든 지역에서 사용할 수 있습니다.
2.3 Block Diagram
2.4 Unpacking and Checking
Remove the two protective hoods from the front and rear and inspect the device
carefully for any damage.
Unpacking and Checking

Preface
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9User Manual 5201.6693.14 ─ 04
If the device is damaged, you should notify the responsible freight carrier immedi-
ately and retain all items of packaging in order to support your complaint. The
original packaging 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
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10User Manual 5201.6693.14 ─ 04
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 34
Reference ground (2)
4-mm-jacks for connecting to the equipment under test. See also Chapter 4.6,
"Connecting the Equipment Under Test", on page 20.
Front Panel Tour

Instrument Tour
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11User Manual 5201.6693.14 ─ 04
L1 Phase Indicator (3)
Indicator showing the correct assignment of L1 and N to the measurement chan-
nels. LED "L1" lights up if the polarity of the mains plug is correct. See also Chap-
ter 4.3, "Connecting to Power", on page 16.
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 26.
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 26.
150 kHz HP (8)
With this toggle key a 150 kHz highpass filter can be switched into the measure-
ment 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 26
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 volt-
age 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 mea-
sured.
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".
Front Panel Tour

Instrument Tour
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12User Manual 5201.6693.14 ─ 04
CAUTION! When the protection diodes are turned off, ensure that the connected
measurement 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 25 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 Output" by 10 dB. The 10-dB-attenuator and a transient suppressor are
permanently inserted. 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.
3.2 Rear Panel Tour
Rear Panel Tour

Instrument Tour
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13User Manual 5201.6693.14 ─ 04
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 mea-
surement path "L1" or "N" and the "150 kHz HP" integral filter. See also Chap-
ter 5, "Remote Control", on page 26.
Protective ground connection (2)
The connection, a 6-mm-threaded bolt with butterfly 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
auxiliary 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
connecting a reference ground. A broad metal foil can be placed over it to create
a low-inductance connection with the test setup.
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 50 VDC. See also Chapter 4.4, "Operating on Non-Standardized Voltages",
on page 18.
Rear Panel Tour

Preparing for Use
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14User Manual 5201.6693.14 ─ 04
4 Preparing for Use
Before the R&S ENV216 is set up for operation, read the Safety Instructions care-
fully.
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 infor-
mation 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 opera-
tion 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.
Setting Up the R&S ENV216

Preparing for Use
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15User Manual 5201.6693.14 ─ 04
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 electri-
cal 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.
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
conductors to become disconnected. A further grounding conductor with ade-
quate diameter must be connected between a grounding conductor connection
for the measurement area and the grounding bolt (1) on the R&S ENV216.
Connecting to Protective Ground

Preparing for Use
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16User Manual 5201.6693.14 ─ 04
4.3 Connecting to Power
Connection to the mains power supply is provided by a permanently attached
mains cable.
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 "Connect-
ing to power" on page 5).
Connecting to Power

Preparing for Use
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17User Manual 5201.6693.14 ─ 04
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
Models", on page 34.
The plug on the mains cable can be adapted using a country-specific adapter.
Connecting to Power

Preparing for Use
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18User Manual 5201.6693.14 ─ 04
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.
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. 50 VDC) the R&S ENV216
control circuit is powered by an external power supply.
1. Make sure that the DC voltage does not exceed 50 VDC. Higher DC voltages
may damage the equipment.
2. DANGER! Risk of electric shock. Make sure that the external power supply
complies 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 cau-
ses 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
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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).
Connecting to Reference Ground

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20User Manual 5201.6693.14 ─ 04
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