Rohde & Schwarz R&S RT-ZVC User Manual
Rohde & Schwarz R&S RT-ZVC User Manual

Rohde & Schwarz R&S RT-ZVC User Manual

Multichannel power probe

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®
R&S
RT-ZVC
Multichannel Power Probe
User Manual
(=JEW2)
1326213902
Version 04
C OM P A N Y R E S T R IC T E D

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Summary of Contents for Rohde & Schwarz R&S RT-ZVC

  • Page 1 ® C OM P A N Y R E S T R IC T E D R&S RT-ZVC Multichannel Power Probe User Manual (=JEW2) 1326213902 Version 04...
  • Page 2 ® This user manual describes the following R&S RT-ZVC models: ● R&S ® ® RT-ZVC04 2x4 voltage/current channels for R&S RTO2000/RTE (1326.0259.04 ) ● R&S ® ® RT-ZVC02 2x2 voltage/current channels for R&S RTO2000/RTE (1326.0259.02 ) ● R&S ® ® RT-ZVC04 2x4 voltage/current channels for R&S CMWrun (1326.0259.24 )
  • Page 3: Table Of Contents

    ® Contents R&S RT-ZVC Contents 1 Safety and regulatory information........5 1.1 Safety instructions................5 1.2 Labels on the product................8 1.3 Warning messages in the documentation.......... 8 2 Product description.............10 2.1 Prerequisites..................11 2.2 Key characteristics................11 2.3 Unpacking and checking..............13 2.4 Description of the probe..............
  • Page 4 ® Contents R&S RT-ZVC 4.2.1 Signal flow for oscilloscope operation...........31 4.2.2 Signal flow for R&S CMWrun operation (USB IF only)......31 4.2.3 Internal shunt operation................ 32 4.2.4 External shunt operation............... 33 4.2.5 Autoranging mode.................35 5 Maintenance and service............ 36 5.1 Cleaning....................36 5.2 Contacting customer support............36 5.3 Returning for servicing..............
  • Page 5: Safety And Regulatory Information

    ® Safety and regulatory information R&S RT-ZVC Safety instructions Safety and regulatory information The product documentation helps you to use the product safely and efficiently. Where do I find safety information? Safety information is part of the product documentation. It warns you of potential dangers and gives instructions on how to prevent personal injury or damage caused by dangerous situations.
  • Page 6 ® Safety and regulatory information R&S RT-ZVC Safety instructions you are unsure about the appropriate use, contact Rohde & Schwarz customer support. Using the product requires specialists or specially trained personnel. These users also need sound knowledge of at least one of the languages in which the user interfaces and the product documentation are available.
  • Page 7 ® Safety and regulatory information R&S RT-ZVC Safety instructions ● Before switching on the product, ensure that the voltage and frequency indica- ted on the product match the available power source. If the power adapter does not adjust automatically, set the correct value and check the rating of the fuse.
  • Page 8: Labels On The Product

    ® Safety and regulatory information R&S RT-ZVC Warning messages in the documentation ● Never cause any short circuits when measuring sources with high output cur- rents. ● Use only probes and accessories that comply with the measurement category (CAT) of your measurement task. If the product is rated for any measurement category, the permitted category is indicated on the product and in the specifi- cations document.
  • Page 9 ® Safety and regulatory information R&S RT-ZVC Warning messages in the documentation WARNING Potentially hazardous situation. Could result in death or serious injury if not avoi- ded. CAUTION Potentially hazardous situation. Could result in minor or moderate injury if not avoided.
  • Page 10: Product Description

    ® Product description R&S RT-ZVC Product description The R&S RT-ZVC is a multichannel power probe with integrated 2- or 4-channel amperemeter and 2- or 4-channel voltmeter. It provides parallel measurements of analog or digital, voltage/current signals with excellent 18-bit resolution. Integra- ted postprocessing logic calculates power and statistical results with high accu- racy.
  • Page 11: Prerequisites

    ® Product description R&S RT-ZVC Key characteristics Prerequisites ● Operation with oscilloscope You can use one of the following oscilloscopes with R&S RT-ZVC: – R&S RTP equipped with R&S RTP-B1E – R&S RTO6 equipped with R&S RTO6-B1E – R&S RTO2000 equipped with R&S RTO-B1E –...
  • Page 12 ® Product description R&S RT-ZVC Key characteristics Power Supply DC/DC To CMWrun (PC) Post- HDMI processing To Scope Connector Logic AC/DC Adapter Figure 2-1: Electrical scheme There are separate A/D converters for each channel that allow for parallel and fully synchronous data acquisition. The key characteristics of the probe are the following: Table 2-2: Technical data Voltmeter (V)
  • Page 13: Unpacking And Checking

    ® Product description R&S RT-ZVC Unpacking and checking Unpacking and checking Figure 2-2: Carrying case (model for R&S CMWrun) 1. Unpack the product carefully. 2. Retain the original packing material. Use it when transporting or shipping the product later. 3. Using the delivery notes, check the equipment for completeness. 4.
  • Page 14: Description Of The Probe

    ® Product description R&S RT-ZVC Description of the probe ● Ground clip (5) for connection to the DUT ● AC power adapter (6) (only for R&S CMWrun) ● PCB solder-in cables (7): – Blue and red round 1.02 mm, length 5 cm, one pair per each current chan- –...
  • Page 15: Probe Box

    ® Product description R&S RT-ZVC Description of the probe 2.4.1 Probe box The following section provides an overview of the control elements and sockets of the probe box and explains how to connect external devices. Figure 2-3: R&S RT-ZVC: upper, front, and rear view 1 = Status LEDs 2 = ID LEDs 3 = Channel LEDs...
  • Page 16 ® Product description R&S RT-ZVC Description of the probe During an overload at a current channel, the R&S RT-ZVC switches automati- cally to the next higher range. If also the 10 A range is exceeded, the ampere- meter switches to external shunt mode to protect the probe against permanent damage.
  • Page 17 ® Product description R&S RT-ZVC Description of the probe Amperemeter The current measurement is performed with a shunt-amperemeter, i.e. the current measurement is reduced to a measurement of a voltage drop on a resistor where the current is flowing through. It has digitally adjustable gain. There are three built-in shunts that can be switched in series to the circuit under test.
  • Page 18: Cables And Accessories

    ® Product description R&S RT-ZVC Description of the probe 2.4.2 Cables and accessories The R&S RT-ZVC delivery contains the following cables: ● Oscilloscope interface cable (only variants for oscilloscopes): blue flat Samtec Twinax cable ● USB 3.0 cable with AC power adapter (only variants for R&S CMWrun). USB cable connects the probe box and the R&S CMWrun controller PC.
  • Page 19: Optional Accessories

    ® Product description R&S RT-ZVC Optional accessories ded within R&S RT-ZA36, or Special OEM accessories for current sockets provided by the manufacturer as with standard shipping. Use the delivered shorting links to close unused measurement points at the DUT for current measurements. Optional accessories If the delivered accessories do not meet individual customer requirements, Rohde &...
  • Page 20 ® Product description R&S RT-ZVC Optional accessories Table 2-8: R&S RT-ZA35 Item Quantity Description Current lead basic AWG20 (L 100 cm) Extended cable set PCB (length 100 cm) for R&S RT- Voltage lead basic AWG28 (L 100 cm) Table 2-9: R&S RT-ZA36 Item Quantity Description...
  • Page 21: Putting Into Operation

    ® Putting into operation R&S RT-ZVC Handling the probe Putting into operation The following topics are covered in the next sections: ● Handling the probe..................21 ● Test setup with oscilloscope................22 ● Test setup with R&S CMWrun................. 23 ● Connecting the probe to the DUT..............
  • Page 22: Test Setup With Oscilloscope

    ® Putting into operation R&S RT-ZVC Test setup with oscilloscope Test setup with oscilloscope A basic test setup with an oscilloscope does not include an external power adapter or USB cable. The connection is realized via the delivered blue flat oscil- loscope interface cable.
  • Page 23: Test Setup With R&S Cmwrun

    ® Putting into operation R&S RT-ZVC Test setup with R&S CMWrun 3. Configure the active channels and the desired ranges at the oscilloscope using the ZVC multichannel probe dialog. The procedure depends on the instrument used. For detailed description, refer to the oscilloscope's user man- ual.
  • Page 24: Connecting The Probe To The Dut

    ® Putting into operation R&S RT-ZVC Connecting the probe to the DUT 3. Connect the probe box via USB cable to the R&S CMWrun controller PC. Use USB 3.0 port at your PC. The PC detects the probe as a USB device. 4.
  • Page 25 ® Putting into operation R&S RT-ZVC Connecting the probe to the DUT Figure 3-3: Test setup 1 = probe box 2 = ground connection 3 = current (I) and voltage (V) leads 1. Establish a common ground between DUT and probe to keep common volt- age within the common mode range of the amplifiers.
  • Page 26 ® Putting into operation R&S RT-ZVC Connecting the probe to the DUT To prepare the DUT for measurements, solder the delivered headers or PCB cables to the DUT to specify the measurement points. Headers The headers soldered to the DUT provide firm contact with the measurement point during the whole measurements.
  • Page 27 ® Putting into operation R&S RT-ZVC Connecting the probe to the DUT External shunt To reduce burden voltage, use the external shunt for the measurements of higher current drains. The figure shows the solder-in connec- tion of external shunt. Adapter PCB current cable to 2.54 mm To use the standard square headers also for current measurements, you can use adapter cables to 2.54 mm delivered within the option...
  • Page 28: Measurement Principles

    ® Measurement principles R&S RT-ZVC Signal integrity Measurement principles Signal integrity The R&S RT-ZVCmultichannel power probe transfers the voltage and current of the electrical signal tapped off the DUT to the postprocessing logic. With an ideal probe, the signal that is post-processed is identical to the input signal at the mea- surement point of the DUT.
  • Page 29: Electromagnetic Interference

    ® Measurement principles R&S RT-ZVC Signal integrity Figure 4-1: Ground connection 4.1.2 Electromagnetic interference Although shielded twisted-pair cables are used for the leads, the measurement is highly sensitive to electromagnetic interference effects near the sockets for PCB cables. Therefore, consider additional shielding methods, such as shield boxes for the DUT, to avoid interference.
  • Page 30 ® Measurement principles R&S RT-ZVC Signal integrity cific limit. This limitation is referred to as the operating voltage window (some manufacturers also use the term "common mode range" for the same parame- ter). If one of these ranges is exceeded, an unwanted signal clipping can occur. Figure 4-2: Voltage operating window The dynamic range between the positive and negative signal pins depends on the gain or attenuation.
  • Page 31: Probing Philosophy

    ® Measurement principles R&S RT-ZVC Probing philosophy Probing philosophy 4.2.1 Signal flow for oscilloscope operation After the measuring of the signal, the R&S RT-ZVC offers the following functions: ● Deskew: Each signal can be delayed by using the deskew function. ●...
  • Page 32: Internal Shunt Operation

    ® Measurement principles R&S RT-ZVC Probing philosophy current and voltage values are internally calculated for 5 MSa/s per channel. The high measurement resolution is suitable for high accuracy measurements of instantaneous values. In contrary, the R&S CMWrun focuses on the long-time battery-life measure- ments.
  • Page 33: External Shunt Operation

    ® Measurement principles R&S RT-ZVC Probing philosophy Figure 4-5: Scheme of the shunt-amperemeter with internal shunt 1 = R&S RT-ZVC probe, channel x 2 = selectable internal shunts 3 = switch for shunt selection 4 = fuse, 15 A (non-resettable) 5 = current leads - shielded twisted pair 6 = DUT 7 = DUT's power supply...
  • Page 34 ® Measurement principles R&S RT-ZVC Probing philosophy Figure 4-6: Scheme of the shunt-amperemeter with external shunt 1 = R&S RT-ZVC probe, channel x 4 = fuse, 15 A (non-resettable) 5 = current leads - shielded twisted pair 6 = DUT 7 = DUT's power supply 8 = external shunt to reduce burden voltage For higher current values, a significant burden voltage appears at the ampereme-...
  • Page 35: Autoranging Mode

    ® Measurement principles R&S RT-ZVC Probing philosophy 4.2.5 Autoranging mode For the multichannel power probe variants R&S RT-ZVC04A or R&S RT-ZVC02A, autoranging mode can be enabled on request either on internal or external shunts. Autoranging is performed by gain-switching according to the measured values, as illustrated in the following figure.
  • Page 36: Maintenance And Service

    ® Maintenance and service R&S RT-ZVC Contacting customer support Maintenance and service Like all Rohde & Schwarz products, Rohde & Schwarz probes and adapters are of high quality and require only minimum service and repair. However, if service or calibration is needed, contact your Rohde & Schwarz service center. Return a defective product to the Rohde &...
  • Page 37: Returning For Servicing

    ® Maintenance and service R&S RT-ZVC Calibration Interval Contact information Contact our customer support center at www.rohde-schwarz.com/support, or fol- low this QR code: Figure 5-1: QR code to the Rohde & Schwarz support page Returning for servicing Use the original packaging to return your R&S RT-ZVC to your Rohde & Schwarz- service center.
  • Page 38: Storage And Transport

    ® Maintenance and service R&S RT-ZVC Spare parts Storage and transport Protect the product against dust. Ensure that the environmental conditions, e.g. temperature range and climatic load, meet the values specified in the specifica- tions document. Store the product in a shock-resistant case, e.g. in the shipping case. Unless otherwise specified in the specifications document, the maximum trans- port altitude without pressure compensation is 4500 m above sea level.
  • Page 39 ® Maintenance and service R&S RT-ZVC Spare parts Probe spare parts Item Designation Part No. Recommended spare part AC/DC power supply 3625.3308.00 TWINAX cable 1316.0662.00 USB 3.0 cable A to micro B 1.5M SW 3625.2818.00 4 mm ground lead, black 1333.1786.02 RT-ZVC housing 1326.0265.00...
  • Page 40 ® Maintenance and service R&S RT-ZVC Spare parts Accessories spare parts Item Designation Part No. Recommended spare part Alligator clip 4 mm SW 3626.3576.00 Voltage lead basic 2XAWG28 1333.1863.02 Current lead basic 2XAWG24 1333.1840.02 PCB cable AWG20 L50 BL 1333.1834.03 PCB cable AWG20 L50 RD 1333.1834.02 Voltage PCB cable AWG26 L50 RD/BL...

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