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Putting into Operation

R&S

RT-ZC20

User Manual 1409.7814.02 ─ 01

Fig. 3-9: RTM Channel1 Probe Menu for RT-ZC20

3.3

Demagnetizing and Zero Adjustment

Risk of circuit damage

●

Do not demagnetize while the R&S

RT-ZC20 is clamping a conductor to

be measured. Demagnetizing causes current to flow into the conductor,
which may damage parts in the circuit to be measured.

●

Check that the conductor being measured is not clamped when supplying
power to the R&S

RT-ZC20. When power is turned on, a demagnetizing

waveform is initially applied to the output. This is intentional in the design,
and not a fault.

1. With the waveform measuring instrument input at ground, adjust the trace to the

zero position.

2. Connect the R&S

RT-ZC20 current probe and configure the oscilloscope as

3. Make sure that there is no conductor in the sensor aperture.

Demagnetizing and Zero Adjustment

Содержание 1409.7789.02

Страница 1: ...R S RT ZC20 Current Probe User Manual User Manual 9Ü 2 1409 7814 02 01 Test Measurement ...

Страница 2: ... 29 0 Fax 49 89 41 29 12 164 E mail info rohde schwarz com Internet http www rohde schwarz com Printed in Germany 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 The following abbreviations are used in this manual R S RT ZC20 is abbreviated as R S RT ZC20 and R S RT ZA13 is abbreviated...

Страница 3: ... 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 in some cases a basic knowledge of English It is therefore essential that only skilled an...

Страница 4: ...ndicates an imminently hazardous situation which if not avoided will result in death or serious injury Indicates a potentially hazardous situation which if not avoided could result in death or serious injury Indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury Indicates the possibility of incorrect operation which can result in damage to the pro...

Страница 5: ...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 AC 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 product...

Страница 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 that no overvoltage such as that caused by a bolt of lightning can reach the product Otherwise the person operating the product will be exposed to the danger of an electric shock 15 Any object that i...

Страница 7: ...ts are given warning labels that are standardized according to their laser class Lasers can cause biological harm due to the properties of their radiation and due to their extremely concentrated electromagnetic power If a laser product e g a CD DVD drive is integrated into a Rohde Schwarz product absolutely no other settings or functions may be used as described in the product documentation The ob...

Страница 8: ... list in order to ensure the safety of the product 7 Cells and batteries must be recycled and kept separate from residual waste Rechargeable batteries and normal batteries that contain lead mercury or cadmium are hazardous waste Observe the national regulations regarding waste disposal and recycling Transport 1 The product may be very heavy Therefore the product must be handled with care In some c...

Страница 9: ...e Schwarz website Instrucciones de seguridad elementales Es imprescindible leer y cumplir las siguientes instrucciones e informaciones de seguridad El principio del grupo de empresas Rohde Schwarz consiste en tener nuestros productos siempre al día con los estándares de seguridad y de ofrecer a nuestros clientes el máximo grado de seguridad Nuestros productos y todos los equipos adicionales son si...

Страница 10: ...eguridad antes de usar el producto y respetarlas durante el uso del producto Deberán tenerse en cuenta todas las demás informaciones de seguridad como p ej las referentes a la protección de personas que encontrarán en el capítulo correspondiente de la documentación del producto y que también son de obligado cumplimiento En las presentes informaciones de seguridad se recogen todos los objetos que d...

Страница 11: ...ucto se emplea de forma sinónima el término CUIDADO Las palabras de señal corresponden a la definición habitual para aplicaciones civiles en el área económica europea Pueden existir definiciones diferentes a esta definición en otras áreas económicas o en aplicaciones militares Por eso se deberá tener en cuenta que las palabras de señal aquí descritas sean utilizadas siempre solamente en combinació...

Страница 12: ... la tensión preseleccionada en el producto coincida con la de la red de alimentación eléctrica Si es necesario modificar el ajuste de tensión también se deberán cambiar en caso dado los fusibles correspondientes del producto 2 Los productos de la clase de protección I con alimentación móvil y enchufe individual solamente podrán enchufarse a tomas de corriente con contacto de seguridad y con conduc...

Страница 13: ...r efectuadas por un electricista especializado 13 En el caso de dispositivos fijos que no estén provistos de fusibles interruptor automático ni otros mecanismos de seguridad similares el circuito de alimentación debe estar protegido de modo que todas las personas que puedan acceder al producto así como el producto mismo estén a salvo de posibles daños 14 Todo producto debe estar protegido contra s...

Страница 14: ...las personas con marcapasos pueden correr peligro a causa de la radiación electromagnética El empresario operador tiene la obligación de evaluar y señalizar las áreas de trabajo en las que exista un riesgo elevado de exposición a radiaciones 6 Tenga en cuenta que en caso de incendio pueden desprenderse del producto sustancias tóxicas gases líquidos etc que pueden generar daños a la salud Por eso e...

Страница 15: ...les conductores No deben extraerse las celdas o baterías de sus embalajes originales hasta el momento en que vayan a utilizarse 4 Las celdas o baterías no deben someterse a impactos mecánicos fuertes indebidos 5 En caso de falta de estanqueidad de una celda el líquido vertido no debe entrar en contacto con la piel ni los ojos Si se produce contacto lavar con agua abundante la zona afectada y avisa...

Страница 16: ...ación para los fabricantes dentro de la UE Para desechar el producto de manera respetuosa con el medio ambiente diríjase a su servicio de atención al cliente de Rohde Schwarz 3 Si se trabaja de manera mecánica y o térmica cualquier producto o componente más allá del funcionamiento previsto pueden liberarse sustancias peligrosas polvos con contenido de metales pesados como p ej plomo berilio o níqu...

Страница 17: ...ge of electronic components the operational site must be protected against electrostatic discharge ESD Wrist strap with cord Ground connection of operational site Heel strap Floor mat The following two methods of ESD protection may be used together or separately Wrist strap with cord to ground connection Conductive floor mat and heel strap combination ...

Страница 18: ...n los componentes electrónicos el área de trabajo tiene que estar protegido contra descargas electroestáticas ESD elec trostatic discharge Muñequera con cordón Conexión a tierra del área de trabajo Talonera Estera Los siguientes dos métodos de protección ESD pueden ser usados jun tos o separados Muñequera con cordón para conexión a tierra Combinación de estera antiestática y talonera ...

Страница 19: ...rument 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 that you will get the right information Europe Africa Middle East Phone 49 89 4129 12345 customersupport rohde schwarz com North America Phone 1 888 TEST RSA 1 888 837 8772 customer support rsa rohde...

Страница 20: ... Description of the Probe 13 3 Putting into Operation 16 3 1 Preparing the Measurement 16 3 2 Connecting the Probe to R S Oscilloscopes 17 3 2 1 Connecting to R S RTO 17 3 2 2 Connecting to R S RTM 19 3 3 Demagnetizing and Zero Adjustment 21 3 4 Connecting the Probe to the DUT 22 4 Maintenance and Service 26 4 1 Service Strategy 26 4 2 Returning the Probe for Servicing 26 4 3 Cleaning 27 4 4 Calib...

Страница 21: ......

Страница 22: ...urement categories Overvoltage catego ries To ensure safe operation of measurement devices IEC 61010 establishes safety standards for various electrical environments categorized as CAT I to CAT IV and called measurement categories These are defined as follows CAT I Secondary electrical circuits connected to an electrical outlet through a transformer or similar device CAT II Primary electrical circ...

Страница 23: ...ing a measurement device in an environment designated with a higher numbered category than that for which the device is rated could result in a severe accident and must be carefully avoided Never use a CAT I measuring device in CAT II III or IV environments The measurement categories comply with the Overvoltage Categories of the IEC60664 Standards 1 2 Precautions Follow these precautions to ensure...

Страница 24: ...ing to 1 Measurement Category I 2 Basic Insulation Requirements for Working Voltages of 300 V 3 Pollution Degree 2 For safeties sake never use this sensor on bare conductors The core and shield case are not insulated Be careful to avoid damaging the insulation surface while taking meas urements This device is made for use with the R S RT ZA13 probe power supply It is possible to use a power supply...

Страница 25: ...d other terminals of the measuring instrument make sure that the voltage input to the measurement ter minal does not exceed the Separated Extra Low Voltage Earthed SELV E Read and observe all warnings and precautions relating to electrical safety for the measuring instrument being connected to the probe Refer to the following standards IEC 61010 1 IEC 61010 031 IEC 61010 2 032 Be sure to observe a...

Страница 26: ...ard Do not allow the device to get wet and do not take measurements with wet hands This may cause an electric shock To avoid electric shock when measuring live lines wear appropriate protective gear such as insulated rubber gloves boots and a safety helmet Precautions ...

Страница 27: ...ding a molded component a ferrite core and a Hall effect element It may be damaged if subjected to sudden changes in ambient temperature or mechanical strain or shock and therefore great care should be exercised in handling it The mating surfaces of the sensor head are precision and should be treated with care If these surfaces are scratched performance may be impaired Measurements are degraded by...

Страница 28: ...conductors could be exposed if the insulation melts Strong electromagnetic fields Correct measurement may be impossible in the presence of strong magnetic fields such as near transformers and high current conductors or in the pres ence of strong electromagnetic fields such as near radio transmitters Precautions ...

Страница 29: ...oid self heating during excessive input Unique thin film Hall effect element 2 3 Inspecting the Contents Inspect the package for damage Keep a damaged package and the cushioning material until the contents have been checked for completeness and the instrument has been tested If the packaging material shows any signs of stress notify the carrier as well as your Rohde Schwarz service center Keep the...

Страница 30: ...essories are delivered with the probe User manual Carrying case 2 4 Description of the Probe External view 1 Opening lever 2 Sensor head 3 Demagnetizing switch DEMAG 4 Zero adjustment dial ZERO ADJ 5 Coarse adjustment trimmer 6 Output connector 7 Power plug Description of the Probe ...

Страница 31: ... by switching the power on and off or by an excessive input Always carry out demagnetizing before measure ment The demagnetizing process takes about one second During demagnetizing a demagnetizing waveform is present at the output Zero adjustment dial ZERO ADJ Use the zero adjustment dial to correct for the effect of a voltage offset or temper ature drift When beginning measurement after demagneti...

Страница 32: ...409 7814 02 01 Power plug Connect the plug to the R S RT ZA13 probe power supply receptacle to supply power to the sensor Shock hazard To avoid electric shock do not touch the portion beyond the protective barrier during use Description of the Probe ...

Страница 33: ...rnally Use a high impedance input of the measuring instrument With an input impedance of 50 Ω accurate measurement is not possible If using BNC banana plug adapters or similar to connect to input terminals other than BNC connectors make sure the polarity is correct Turn the collar until it clicks and check that it is locked securely 1 Have the R S RT ZA13 probe power supply and an oscilloscope or ...

Страница 34: ...lloscope refer to chapter 3 2 Connecting the Probe to R S Oscilloscopes on page 17 7 When disconnecting the output connector be sure to release the lock before pulling off the connector Forcibly pulling the connector without releasing the lock or pulling on the cable can damage the terminator 3 2 Connecting the Probe to R S Oscilloscopes The connection procedure is described for channel 1 If the c...

Страница 35: ...2 01 Fig 3 1 Front panel of R S RTO1024 Fig 3 2 Oscilloscope inputs 2 On the Vertical menu select Probe Setup Fig 3 3 Access to Probe Setup 3 Under Probe detection select the Manual tab Select the Predefined probe RT ZC20 Connecting the Probe to R S Oscilloscopes ...

Страница 36: ...forR S RT ZC20 3 2 2 Connecting to R S RTM 1 Connect the output connector of the R S RT ZC20 to one of the BNC input connectors of the oscilloscope e g to CH1 input Turn the collar until it clicks and check that it is locked securely Fig 3 5 Front panel of RTM Connecting the Probe to R S Oscilloscopes ...

Страница 37: ...ront panel press the CH1 key 3 On the first page of the Channels menu set Coupling DC Termination 1 MΩ Press More Fig 3 7 RTM Channel1 menu 1st page 4 Press Probe on the second page of the Channels menu Fig 3 8 RTM Channel1 menu 2nd page 5 In the Probe menu set Unit Ampere Gain 100 mV A Connecting the Probe to R S Oscilloscopes ...

Страница 38: ...ed Check that the conductor being measured is not clamped when supplying power to the R S RT ZC20 When power is turned on a demagnetizing waveform is initially applied to the output This is intentional in the design and not a fault 1 With the waveform measuring instrument input at ground adjust the trace to the zero position 2 Connect the R S RT ZC20 current probe and configure the oscilloscope as...

Страница 39: ...tment by the zero adjustment dial Risk of instrument damage When opening the sensor head of the probe be sure to operate with the opening lever If an upper core is forced to open when the sensor head is locked the open close mechanism can be damaged 3 4 Connecting the Probe to the DUT 1 Check that the system is safe and that the preparations described in the pre ceding sections have been carried o...

Страница 40: ...ck that the sensor head is properly closed If the sensor head is not properly closed accurate measurement is not possible The current consumption of clamp on probes depends on the current to be measured Confirm that the total current consumption of the probes does not exceed the rated output current of the R S RT ZA13 probe power supply Fig 3 10 Current consumption vs current to be measured typica...

Страница 41: ...he rated continuous maximum current continuous input for an extended period of time may result in acti vation of the safety circuit to prevent damage resulting from heating of the sensor At high ambient temperatures the built in safety circuit may activate at current input levels below the rated continuous maximum current Continuous input of current exceeding the rated maximum or repeated activati...

Страница 42: ...ent temperature Under certain circumstances oscillation may occur while the power supply is on This does not indicate a malfunction Oscillation can be stopped and operation restored to normal by opening and closing the sensor head Depending on the measured current frequency some sound may be pro duced by resonance It has no effect on measurements At high frequencies common mode noise may affect me...

Страница 43: ...rz service center for diagnosis and exchange You can return the R S RT ZC20 current probe for calibration The service per sonnel will then perform the required tests and readjust the probe if necessary 4 2 Returning the Probe for Servicing Use the original packaging to return the R S RT ZC20 current probe to your Rohde Schwarz service center If you cannot use the original packaging consider the fo...

Страница 44: ...e caused by cleaning agents Cleaning agents contain substances that may damage the instrument for example solvent may damage the labeling or plastic parts Never use cleaning agents such as solvents thinners acetone etc acids bases or other substances 4 4 Calibration Interval The recommended calibration interval is two years For servicing send the probe to your nearest Rohde Schwarz service center ...

Страница 45: ...0 28 User Manual 1409 7814 02 01 5 R S RT ZA13 Probe Power Supply This unit is a special purpose power supply for the R S RT ZC10 and R S RT ZC20 current probes You can connect up to four current probes to the power supply Front view Rear view ...

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