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Basic Safety Instructions 

1171.0000.42 - 08 

Page 3 

Operating states and operating positions 

The product may be operated only under the operating conditions and in the positions specified by the 
manufacturer, without the product's ventilation being obstructed. If the manufacturer's specifications are 
not observed, this can result in electric shock, fire and/or serious personal injury or death. Applicable local 
or national safety regulations and rules for the prevention of accidents must be observed in all work 
performed.  

1.  Unless otherwise specified, the following requirements apply to Rohde & Schwarz products:  

predefined operating position is always with the housing floor facing down, IP protection 2X, use only 
indoors, max. operating 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 

±

5 % to the nominal frequency, 

overvoltage category 2, pollution degree 2. 

2.  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). An installation 
that is not carried out as described in the product documentation could result in personal injury or 
even death. 

3.  Do not place the product on heat-generating devices such as radiators or fan heaters. The ambient 

temperature must not exceed the maximum temperature specified in the product documentation or in 
the data sheet. Product overheating can cause electric shock, fire and/or serious personal injury or 
even death. 

Electrical safety 

If the information on electrical safety is not observed either at all or to the extent necessary, electric shock, 
fire and/or serious personal injury or death may occur. 

 

1.  Prior to switching on the product, always ensure that the nominal voltage setting on the product 

matches the nominal voltage of the mains-supply network. If a different voltage is to be set, the power 
fuse of the product may have to be changed accordingly.  

2.  In the case of products of safety class I with movable power cord and connector, operation is 

permitted only on sockets with a protective conductor contact and protective conductor. 

3.  Intentionally breaking the protective conductor 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. 

4.  If there is no power switch for disconnecting the product from the mains, or if the power switch is not 

suitable for this purpose, use the plug of the connecting cable to disconnect the product from the 
mains. In such cases, always ensure that the power plug is easily reachable and accessible at all 
times. For example, if the power plug is the disconnecting device, the length of the connecting cable 
must not exceed 3 m. Functional or electronic switches are not suitable for providing disconnection 
from the AC supply network. If products without power switches are integrated into racks or systems, 
the disconnecting device must be provided at the system level. 

5.  Never use the product if the power cable is damaged. Check the power cables on a regular basis to 

ensure that they are 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, for example, tripping over the cable or suffering an electric shock.  

Summary of Contents for MDS-21

Page 1: ...PAD T M 3574 3259 03 01 00 CI 1 DE R S MDS 21 Absorbing Clamp User Manual User Manual Test Measurement 1142 8407 04 02...

Page 2: ...This document describes the R S MDS 21 absorbing clamp Material number 0194 0100 50...

Page 3: ...e 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...

Page 4: ...ation item 7 Signal words and their meaning The following signal words are used in the product documentation in order to warn the reader about risks and dangers Indicates a hazardous situation which i...

Page 5: ...afety is not observed either at all or to the extent necessary electric shock fire and or serious personal injury or death may occur 1 Prior to switching on the product always ensure that the nominal...

Page 6: ...t be fuse protected in such a way that anyone who has access to the product as well as the product itself is adequately protected from injury or damage 14 Use suitable overvoltage protection to ensure...

Page 7: ...masks and protective clothing must be worn 7 Laser products are given warning labels that are standardized according to their laser class Lasers can cause biological harm due to the properties of the...

Page 8: ...n permitted 5 If a cell develops a leak the fluid must not be allowed to come into contact with the skin or eyes If contact occurs wash the affected area with plenty of water and seek medical aid 6 Im...

Page 9: ...s substances or fuels can cause health problems and lead to environmental damage For additional information about environmental protection visit the Rohde Schwarz website Instrucciones de seguridad el...

Page 10: ...el uso del producto Deber n tenerse en cuenta todas las dem s informaciones de seguridad como p ej las referentes a la protecci n de personas que encontrar n en el cap tulo correspondiente de la docu...

Page 11: ...l producto se emplea de forma sin nima el t rmino CUIDADO Las palabras de se al corresponden a la definici n habitual para aplicaciones civiles en el rea econ mica europea Pueden existir definiciones...

Page 12: ...la tensi n preseleccionada en el producto coincida con la de la red de alimentaci n el ctrica Si es necesario modificar el ajuste de tensi n tambi n se deber n cambiar en caso dado los fusibles corre...

Page 13: ...efectuadas por un electricista especializado 13 En el caso de dispositivos fijos que no est n provistos de fusibles interruptor autom tico ni otros mecanismos de seguridad similares el circuito de ali...

Page 14: ...presario operador tiene la obligaci n de evaluar y se alizar las reas de trabajo en las que exista un riesgo elevado de exposici n a radiaciones 6 Tenga en cuenta que en caso de incendio pueden despre...

Page 15: ...r ni fuego Debe evitarse el almacenamiento a la luz directa del sol Las celdas y bater as deben mantenerse limpias y secas Limpiar las conexiones sucias con un pa o seco y limpio 3 Las celdas o bater...

Page 16: ...vos el ctricos usados no se deben desechar con los residuos dom sticos sin clasificar sino que deben ser recogidos por separado Rohde Schwarz GmbH Co KG ha elaborado un concepto de eliminaci n de resi...

Page 17: ...ument up to date and to be informed about new application notes related to your instrument please send an e mail to the Customer Support Center stating your instrument and your wish We will take care...

Page 18: ...wing Ring 7 3 Block Diagram 8 4 Preparing for Use 9 4 1 Unpacking the Device 9 4 2 Setting up the Device 9 4 3 Connecting the Measuring Receiver 9 4 4 6 dB Attenuator 9 4 5 Connecting the EUT 10 4 6 C...

Page 19: ...R S MDS 21 Contents User Manual 1142 8407 04 02 E 4...

Page 20: ...operation In the case of a fault there may be dangerously high voltage on the housing of the EUT or a flashover may occur when the test cable is touched The absorbing clamp is not protected against ov...

Page 21: ...n systems in line with CISPR 12 EN 55012 The absorbing clamp measurement method is described in clause 7 of the CISPR 16 2 2 basic standard The characteristics of the absorbing clamp itself are descri...

Page 22: ...eference for determining the location distance of the local maximum emission 2 1 3 Spacer The spacer is used to center test cables with a small diameter e g for calibration The maximum cable diameter...

Page 23: ...R S MDS 21 Block Diagram User Manual 1142 8407 04 02 E 8 3 Block Diagram Fig 2 Block diagram of the absorbing clamp...

Page 24: ...easily moved along the test cable The operating current along the test cable does not exceed the permitted limits The maximum permissible RF input power at the device s measuring receiver output is no...

Page 25: ...oint towards the EUT 4 6 Clamp Slide The clamp has ball bearing rollers rated for manual or automatic operation on clamp slides Fig 4 shows the dimensions of the clamp slide and the guiding track for...

Page 26: ...bsorbing clamp and the measuring receiver MDS absorbing clamps consist of a two part plastic case that can be opened Each part includes a set of ferrite ring core halves In the upper part the halves a...

Page 27: ...For measurements close the absorbing clamp with both eccentric catches The current transformer must point towards the EUT This side of the absorbing clamp is marked with EUT Move the absorbing clamp...

Page 28: ...r due to mechanical and electrical influences Accordingly the contacts should be regularly checked for bent corroded or broken pins or sockets Damaged contacts and parts must be replaced 6 1 Spare Par...

Page 29: ...eriod between calibration and delivery to the warehouse and since aging of absorbing clamps in the warehouse is negligible due to the lack of active components the interval up to the first recalibrati...

Page 30: ...Clamp factor 12 Clamp slide 10 Connection Equipment under test EUT 10 Measuring receiver 9 Device Setting up 9 Unpacking 9 Disturbance power measurement example 11 Equipment under test EUT 10 Front vi...

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