Rohde&Schwarz R&S®ESH2-Z3 Manual Manual
Test and Measurement
Division
Manual
Passive Voltage Probe
R&S ESH2-Z3
299.7810.56
Attenuator
R&S ESH2Z31
827.6513.06
Printed in the Federal
Republic of Germany
1156.6124.32-01 1
Dear Customer,
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
R&S ESH2-Z3 Safety Instructions
Safety instructions on the use of Passive Voltage Probe ESH2-Z3
The International Electrotechnical Commission (IEC) for measuring instruments has replaced
the IEC348 standard by the more stringent IEC61010-1 standard. Due to this change, we see it
necessary to draw your attention again to the following safety-relevant information:
1. The new IEC61010-1 standard specifies overvoltages in four overvoltage classes according to the
ite of operation.
s
Please note that the passive voltage probe has been exclusively designed and tested for use in
power supply circuits of overvoltage class II only.
(Networks/circuits of overvoltage class II are normally all circuits following power distributors located
on floors or lines from main distributors which are more than 15 m away from the latter.)
2. Use the probe exclusively for measurements on networks fused with max. 16 A.
3. Passive Voltage Probe ESH2-Z3 includes the following safety measures:
- Y capacitor (breakdown voltage 2.7 kV)
- protective insulation of probe casing
- guard collar of probe to provide protection against accidental slipping of operator's hand
Prior to using the probe, check
- whether the protective insulation around the probe is intact
- whether the guard collar is rigidly fixed
- whether the Y capacitor is intact: by measuring the DC resistance between the probe tip and the
inner cable conductor to the test receiver; the DC resistance should be >1 M.
- whether the ground terminal is tightly screwed to the probe casing.
4. Make sure that the ground cable is always tightly screwed to the probe. Prior to connecting the
probe to the AC supply, make a connection between the ground cable and the ground which is
equivalent to a protective conductor connection. Another safety measure that can be taken to protect
the user is to connect the probe to a test receiver which itself is linked to protective earth.
5. We strongly recommend to use an isolating device to ensure that prior to connecting the probe to
the AC supply its power connector is free of voltage. This equally applies to disconnecting the probe
from the AC supply.
6. Only skilled and qualified personnel shall use this probe in networks with voltages constituting a
shock hazard.
1156.6124.32 SI E-1
R&S ESH2-Z3 Contents
Contents
Safety Instructions
Data Sheet
ertificate of Quality
C
EU Certificate of Conformity
List of R&S Representatives
1 Preparation for Use and Operating Instructions ..............................................................................5
Preparation for Use...........................................................................................................................5
Operating Instructions .....................................................................................................................5
2 Measurement .......................................................................................................................................6
Determining the Interference Source Impedance Zs ....................................................................6
Measuring and Evaluating the Interference Level .........................................................................6
Practical Effects of the EUT Source Impedance on the measurement results with the Pasive
Probe R&S ESH2-Z3 and R&S ESH2Z31.....................................................................................8
3 Required Measuring Equipment ........................................................................................................9
Recalibration .....................................................................................................................................9
4 Circuit Description ............................................................................................................................10
Electrical Function..........................................................................................................................10
Parts lists
Circuit diagram
Planes
1156.6124.32 3 E-1
Grouped Safety Messages
Make sure to read through and observe the following safety instructions!
All plants and locations of the Rohde & Schwarz group of companies make every effort to keep the safety
standard of our products up to date and to offer our customers the highest possible degree of safety. Our
products and the auxiliary equipment required for them are designed and tested in accordance with the
relevant safety standards. Compliance with these standards is continuously monitored by our quality
assurance system. The product described here has been designed and tested in accordance with the EC
Certificate of Conformity and has left the manufacturer’s plant in a condition fully complying with safety
standards. To maintain this condition and to ensure safe operation, observe all instructions and warnings
provided in this manual. If you have any questions regarding these safety instructions, the Rohde &
Schwarz group of companies will be happy to answer them.
Furthermore, it is your responsibility to use the product in an appropriate manner. This product is designed
for use solely in industrial and laboratory environments or, if expressly permitted, also in the field and must
not be used in any way that may cause personal injury or property damage. You are responsible if the
product is used for an intention other than its designated purpose or in disregard of the manufacturer's
instructions. The manufacturer shall assume no responsibility for such use of the product.
The product is used for its designated purpose if it is used in accordance with its product documentation
and within its performance limits (see data sheet, documentation, the following safety instructions). Using
the product requires technical skills and a basic knowledge of English. It is therefore essential that only
skilled and specialized staff or thoroughly trained personnel with the required skills be allowed to use the
product. If personal safety gear is required for using Rohde & Schwarz products, this will be indicated at
the appropriate place in the product documentation. Keep the basic safety instructions and the product
documentation in a safe place and pass them on to the subsequent users.
Symbols and safety labels
Observe
product
documentation
ON/OFF
indication for
Supply
voltage
Weight
units >18 kg
Standby
indication
Danger of
electric
shock
Warning!
Hot
surface
PE terminal Ground
Direct
current
(DC)
Alternating
current (AC)
Direct/alternating
current (DC/AC)
Device fully protected
by double/reinforced
Observing the safety instructions will help prevent personal injury or damage of any kind caused by
dangerous situations. Therefore, carefully read through and adhere to the following safety instructions
before putting the product into operation. It is also absolutely essential to observe the additional safety
instructions on personal safety that appear in relevant parts of the product documentation. In these safety
instructions, the word "product" refers to all merchandise sold and distributed by the Rohde & Schwarz
group of companies, including instruments, systems and all accessories.
Ground
terminal
insulation
Attention!
Electrostatic
sensitive devices
1171.0000.42-04.00 Sheet 1
Grouped Safety Messages
Tags and their meaning
DANGER DANGER indicates a hazardous situation which, if not avoided, will result in death or
serious injury.
WARNING WARNING indicates a hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION CAUTION indicates a hazardous situation which, if not avoided, may result in minor or
moderate injury.
NOTICE NOTICE indicates a property damage message.
In the product documentation, the word ATTENTION is used synonymously.
These tags are in accordance with the standard definition for civil applications in the European Economic
Area. Definitions that deviate from the standard definition may also exist in other economic areas or
military applications. It is therefore essential to make sure that the tags described here are always used
only in connection with the related product documentation and the related product. The use of tags in
connection with unrelated products or documentation can result in misinterpretation and thus contribute to
personal injury or material damage.
Basic safety instructions
1. The product may be operated only under the
operating conditions and in the positions
specified by the manufacturer. Its ventilation
must not be obstructed during operation.
Unless otherwise specified, the following
requirements apply to Rohde & Schwarz
products:
prescribed operating position is always with
the housing floor facing down, IP protection
2X, pollution severity 2, overvoltage category
2, use only in enclosed spaces, max.
operation altitude 2000 m above sea level,
max. transport altitude 4500 m above sea
level.
A tolerance of ±10% shall apply to the
nominal voltage and of ±5% to the nominal
frequency.
2. Applicable local or national safety
regulations and rules for the prevention of
accidents must be observed in all work
performed. The product may be opened only
by authorized, specially trained personnel.
Prior to performing any work on the product
or opening the product, the product must be
disconnected from the supply network. Any
adjustments, replacements of parts,
maintenance or repair must be carried out
only by technical personnel authorized by
Rohde & Schwarz. Only original parts may
be used for replacing parts relevant to safety
(e.g. power switches, power transformers,
fuses). A safety test must always be
performed after parts relevant to safety have
been replaced (visual inspection, PE
conductor test, insulation resistance
measurement, leakage current
measurement, functional test).
3. As with all industrially manufactured goods,
the use of substances that induce an allergic
reaction (allergens, e.g. nickel) such as
aluminum cannot be generally excluded. If
you develop an allergic reaction (such as a
skin rash, frequent sneezing, red eyes or
respiratory difficulties), consult a physician
immediately to determine the cause.
4. If products/components are mechanically
and/or thermically processed in a manner
that goes beyond their intended use,
hazardous substances (heavy-metal dust
such as lead, beryllium, nickel) may be
released. For this reason, the product may
only be disassembled, e.g. for disposal
purposes, by specially trained personnel.
Improper disassembly may be hazardous to
your health. National waste disposal
regulations must be observed.
1171.0000.42-04.00 Sheet 2
Grouped Safety Messages
5. If handling the product yields hazardous
substances or fuels that must be disposed of
in a special way, e.g. coolants or engine oils
that must be replenished regularly, the safety
instructions of the manufacturer of the
hazardous substances or fuels and the
applicable regional waste disposal
regulations must be observed. Also observe
the relevant safety instructions in the product
documentation.
6. Depending on the function, certain products
such as RF radio equipment can produce an
elevated level of electromagnetic radiation.
Considering that unborn life requires
increased protection, pregnant women
should be protected by appropriate
measures. Persons with pacemakers may
also be endangered by electromagnetic
radiation. The employer/operator is required
to assess workplaces where there is a
special risk of exposure to radiation and, if
necessary, take measures to avert the
danger.
7. Operating the products requires special
training and intense concentration. Make
certain that persons who use the products
are physically, mentally and emotionally fit
enough to handle operating the products;
otherwise injuries or material damage may
occur. It is the responsibility of the employer
to select suitable personnel for operating the
products.
8. Prior to switching on the product, it must be
ensured that the nominal voltage setting on
the product matches the nominal voltage of
the AC supply network. If a different voltage
is to be set, the power fuse of the product
may have to be changed accordingly.
9. In the case of products of safety class I with
movable power cord and connector,
operation is permitted only on sockets with
earthing contact and protective earth
connection.
10. Intentionally breaking the protective earth
connection either in the feed line or in the
product itself is not permitted. Doing so can
result in the danger of an electric shock from
the product. If extension cords or connector
strips are implemented, they must be
checked on a regular basis to ensure that
they are safe to use.
11. If the product has no power switch for
disconnection from the AC supply, the plug
of the connecting cable is regarded as the
disconnecting device. In such cases, it must
be ensured that the power plug is easily
reachable and accessible at all times
(corresponding to the length of connecting
cable, approx. 2 m). Functional or electronic
switches are not suitable for providing
disconnection from the AC supply. If
products without power switches are
integrated in racks or systems, a
disconnecting device must be provided at
the system level.
12. Never use the product if the power cable is
damaged. Check the power cable on a
regular basis to ensure that it is in proper
operating condition. By taking appropriate
safety measures and carefully laying the
power cable, ensure that the cable cannot be
damaged and that no one can be hurt by e.g.
tripping over the cable or suffering an electric
shock.
13. The product may be operated only from
TN/TT supply networks fused with max. 16 A
(higher fuse only after consulting with the
Rohde & Schwarz group of companies).
14. Do not insert the plug into sockets that are
dusty or dirty. Insert the plug firmly and all
the way into the socket. Otherwise, this can
result in sparks, fire and/or injuries.
15. Do not overload any sockets, extension
cords or connector strips; doing so can
cause fire or electric shocks.
16. For measurements in circuits with voltages
V
> 30 V, suitable measures (e.g.
rms
appropriate measuring equipment, fusing,
current limiting, electrical separation,
insulation) should be taken to avoid any
hazards.
17. Ensure that the connections with information
technology equipment comply with IEC
950/EN 60950.
18. Unless expressly permitted, never remove
the cover or any part of the housing while the
product is in operation. Doing so will expose
circuits and components and can lead to
injuries, fire or damage to the product.
19. If a product is to be permanently installed,
the connection between the PE terminal on
site and the product's PE conductor must be
made first before any other connection is
made. The product may be installed and
connected only by a license electrician.
1171.0000.42-04.00 Sheet 3
Grouped Safety Messages
20. For permanently installed equipment without
built-in fuses, circuit breakers or similar
protective devices, the supply circuit must be
fused in such a way that suitable protection
is provided for users and products.
21. Do not insert any objects into the openings in
the housing that are not designed for this
purpose. Never pour any liquids onto or into
the housing. This can cause short circuits
inside the product and/or electric shocks, fire
or injuries.
22. Use suitable overvoltage protection to
ensure that no overvoltage (such as that
caused by a thunderstorm) can reach the
product. Otherwise the operating personnel
will be endangered by electric shocks.
23. Rohde & Schwarz products are not protected
against penetration of liquids, unless
otherwise specified (see also safety
instruction 1.). If this is not taken into
account, there exists the danger of electric
shock for the user or damage to the product,
which can also lead to personal injury.
24. Never use the product under conditions in
which condensation has formed or can form
in or on the product, e.g. if the product was
moved from a cold to a warm environment.
25. Do not close any slots or openings on the
product, since they are necessary for
ventilation and prevent the product from
overheating. Do not place the product on soft
surfaces such as sofas or rugs or inside a
closed housing, unless this is well ventilated.
26. Do not place the product on heat-generating
devices such as radiators or fan heaters.
The temperature of the environment must
not exceed the maximum temperature
specified in the data sheet.
27. Batteries and storage batteries must not be
exposed to high temperatures or fire. Keep
batteries and storage batteries away from
children. Do not short-circuit batteries and
storage batteries.
If batteries or storage batteries are
improperly replaced, this can cause an
explosion (warning: lithium cells). Replace
the battery or storage battery only with the
matching Rohde & Schwarz type (see spare
parts list). Batteries and storage batteries
must be recycled and kept separate from
residual waste. Batteries and storage
batteries that contain lead, mercury or
cadmium are hazardous waste. Observe the
national regulations regarding waste
disposal and recycling.
28. Please be aware that in the event of a fire,
toxic substances (gases, liquids etc.) that
may be hazardous to your health may
escape from the product.
29. The product can be very heavy. Be careful
when moving it to avoid back or other
physical injuries.
30. Do not place the product on surfaces,
vehicles, cabinets or tables that for reasons
of weight or stability are unsuitable for this
purpose. Always follow the manufacturer's
installation instructions when installing the
product and fastening it to objects or
structures (e.g. walls and shelves).
31. Handles on the products are designed
exclusively for personnel to hold or carry the
product. It is therefore not permissible to use
handles for fastening the product to or on
means of transport such as cranes, fork lifts,
wagons, etc. The user is responsible for
securely fastening the products to or on the
means of transport and for observing the
safety regulations of the manufacturer of the
means of transport. Noncompliance can
result in personal injury or material damage.
32. If you use the product in a vehicle, it is the
sole responsibility of the driver to drive the
vehicle safely. Adequately secure the
product in the vehicle to prevent injuries or
other damage in the event of an accident.
Never use the product in a moving vehicle if
doing so could distract the driver of the
vehicle. The driver is always responsible for
the safety of the vehicle. The manufacturer
assumes no responsibility for accidents or
collisions.
33. If a laser product (e.g. a CD/DVD drive) is
integrated in a Rohde & Schwarz product, do
not use any other settings or functions than
those described in the product documentation. Otherwise this may be hazardous to
your health, since the laser beam can cause
irreversible damage to your eyes. Never try
to take such products apart, and never look
into the laser beam.
34. Prior to cleaning, disconnect the product
from the AC supply. Use a soft, non-linting
cloth to clean the product. Never use
chemical cleaning agents such as alcohol,
acetone or diluent for cellulose lacquers.
1171.0000.42-04.00 Sheet 4
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