R&S RT-Z1M Manuale utente
R&S®RT‑Z1M
High-impedance buffer amplifier
Manual
1801314202
Version 05
(B1OZ2)
This manual describes the usage of the R&S RT-Z1M high-impedance buffer amplifier (1337.9200.02).
© 2023 Rohde & Schwarz GmbH & Co. KG
Muehldorfstr. 15, 81671 Muenchen, Germany
Phone: +49 89 41 29 - 0
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.
1801.3142.02 | Version 05 | R&S®RT‑Z1M
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol, e.g. R&S®RT-Z1M is indicated as
R&S RT-Z1M.
Contents
R&S®RT‑Z1M
3Manual 1801.3142.02 ─ 05
Contents
1 Safety information..................................................................................5
2 Product description............................................................................... 7
2.1 Key features and key characteristics..........................................................................7
2.2 Unpacking the product................................................................................................. 7
2.2.1 Inspecting the contents................................................................................................... 8
2.3 Description of the buffer amplifier.............................................................................. 8
2.3.1 Buffer amplifier box......................................................................................................... 9
2.3.2 Probe interface................................................................................................................9
2.3.3 Dimensions of buffer amplifier and probe......................................................................10
2.4 Accessories................................................................................................................. 10
2.4.1 Supplied accessories.................................................................................................... 10
2.4.2 Service accessories...................................................................................................... 10
3 Putting into operation..........................................................................11
3.1 Connecting the buffer amplifier to the oscilloscope............................................... 11
3.2 Identification of buffer amplifier and probe..............................................................12
3.3 Connecting the buffer amplifier to the DUT..............................................................12
3.4 Disconnecting the buffer amplifier from the DUT.................................................... 12
3.5 Using the buffer amplifier...........................................................................................13
3.5.1 Offset compensation..................................................................................................... 13
3.5.2 AC/DC switching........................................................................................................... 13
3.5.3 Analog bandwidth..........................................................................................................14
3.5.4 Self-alignment............................................................................................................... 14
3.5.5 R&S ProbeMeter........................................................................................................... 14
4 Typical characteristics.........................................................................15
4.1 Bandwidth....................................................................................................................15
4.2 Step response............................................................................................................. 15
5 Maintenance and service.....................................................................17
5.1 Cleaning....................................................................................................................... 17
5.2 Contacting customer support....................................................................................17
5.3 Returning for servicing...............................................................................................18
Contents
R&S®RT‑Z1M
4Manual 1801.3142.02 ─ 05
5.4 Calibration interval......................................................................................................18
5.5 Storage and transport.................................................................................................18
5.6 Disposal....................................................................................................................... 18
6 Functional test......................................................................................20
Safety information
R&S®RT‑Z1M
5Manual 1801.3142.02 ─ 05
1 Safety information
The product documentation helps you use the product safely and efficiently. Follow the
instructions provided here and in the following chapters.
Intended use
The R&S RT‑Z1M high-impedance buffer amplifier is designed for measurements on
circuits that are only indirectly connected to the mains or not connected at all. It is not
rated for any measurement category.
The product is intended for the development, production and verification of electronic
components and devices in industrial, administrative, and laboratory environments.
Use the product only for its designated purpose. Observe the operating conditions and
performance limits stated in the data sheet.
The buffer amplifier is designed for usage with oscilloscopes that have a
Rohde & Schwarz probe interface. Supported Rohde & Schwarz oscilloscopes are lis-
ted in the product's data sheet.
Where do I find safety information?
Safety information is part of the product documentation. It warns you of potential dan-
gers and gives instructions on how to prevent personal injury or damage caused by
dangerous situations.
●Printed "Safety Instructions for Oscilloscopes and Accessories" in many languages
is delivered with your Rohde & Schwarz oscilloscope and probes.
●The documentation of the oscilloscope and measurement equipment provides
safety instructions when you need to take care during setup or operation.
Operating site
Only use the product indoors, and keep it dry. The product casing is not waterproof.
You can operate the product up to the altitude specified in the data sheet. The lowest
specified altitude for a product of the measurement setup defines the altitude for the
complete setup.
The product is suitable for pollution degree 2 environments where nonconductive con-
tamination can occur. For more information on environmental conditions such as ambi-
ent temperature and humidity, see the data sheet.
Electrical safety
Take the following measures for your safety:
●The buffer amplifier and the measurement instrument must be grounded. Ground-
ing is typically ensured through the grounding of the measurement instrument to
which the buffer amplifier is connected.
●Always connect the buffer amplifier to the oscilloscope first before connecting a
probe to the buffer amplifier and to the circuit under test.
Safety information
R&S®RT‑Z1M
6Manual 1801.3142.02 ─ 05
●Do not apply voltages higher than the maximum rated voltage, see the imprint on
the buffer amplifier.
●When using the buffer amplifier in combination with a passive probe that can mea-
sure voltages higher than the maximum rated input voltage of the buffer amplifier
(e.g. R&S RT-ZP10): Observe the maximum rated voltage of the probe.
●Never open the casing of the buffer amplifier. If any part of the measurement equip-
ment is damaged or broken, stop using it.
Product integrity
The R&S RT‑Z1M can withstand a moderate amount of physical and electrical stress.
To avoid damage, treat the buffer amplifier with care:
●Do not exceed the specified voltage limits.
●Connect the R&S RT‑Z1M only to an instrument with Rohde & Schwarz probe
interface. Never connect it to a usual BNC jack. Although the 7 mm coaxial con-
nector looks like a standard BNC connector, it is constructed differently and does
not fit to the standard BNC jack. The interface of the R&S RT‑Z1M can withstand a
higher frequency limit.
●Prevent the buffer amplifier from receiving mechanical shock.
●Do not spill liquids on the buffer amplifier.
●Store the buffer amplifier in a shock-resistant case, e.g. in the foam-lined shipping
case.
Product description
R&S®RT‑Z1M
7Manual 1801.3142.02 ─ 05
2 Product description
2.1 Key features and key characteristics
The R&S RT‑Z1M high-impedance buffer amplifier is an accessory for oscilloscopes
that have only inputs with 50 Ω input impedance. It allows you to connect measure-
ment equipment requiring a 1 MΩ load impedance to such oscilloscopes.
The R&S RT‑Z1M is equipped with the Rohde & Schwarz probe interface to be con-
nected to Rohde & Schwarz oscilloscopes that are compatible with this interface. How-
ever, oscilloscopes that already support a 1 MΩ input impedance do not support the
buffer amplifier.
The Rohde & Schwarz probe interface at the buffer amplifier input allows you to con-
nect various probes, e.g. passive probes, current probes, and active probes with
Rohde & Schwarz probe interface.
The R&S RT‑Z1M provides an integrated R&S ProbeMeter, which is used for probes
without an own R&S ProbeMeter. Usually, these probes are passive probes.
Table 2-1: Key features and key characteristics
Parameter R&S RT‑Z1M
Max. Bandwidth
Lowpass1:
Lowpass2:
DC - 500 MHz
DC - 200 MHz
DC - 20 MHz
Operating voltage window ±60 V (buffer amplifier alone)
Maximum input voltage 60 V DC
42 V AC Peak
Offset range Up to ±60 V depending on vertical scale
Input resistance 1 MΩ
Input capacitance 12 pF
AC coupling Cutoff frequency: 7 Hz
R&S ProbeMeter, dynamic range ±60 V
R&S ProbeMeter, measurement error < 0.1 %
R&S probe interface +5 V USB power; 0.5 A current limited
+12 high-power supply; 1 A current limited
2.2 Unpacking the product
The following items are included in the delivery:
●R&S RT‑Z1M high-impedance buffer amplifier
Unpacking the product
Product description
R&S®RT‑Z1M
8Manual 1801.3142.02 ─ 05
●User manual of the R&S RT‑Z1M
●R&S RT-ZP10 10:1 passive probe
●User manual of the R&S RT-ZP10
●Accessories for R&S RT-ZP10 (delivery contents is listed in the user manual of the
probe)
●R&S RT‑Z1M data sheet
●"Basic Safety Instructions" brochure
●Calibration certificate
●Documented calibration values (if ordered)
2.2.1 Inspecting the contents
1. Unpack the product carefully.
2. Retain the original packing material. Use it when transporting or shipping the prod-
uct later.
3. Using the delivery notes, check the equipment for completeness.
4. Check the equipment for damage.
If the delivery is incomplete or equipment is damaged, contact Rohde & Schwarz.
A description of the supplied probe accessories is listed in the user manual of R&S RT-
ZP10 passive probe.
2.3 Description of the buffer amplifier
Figure 2-1: R&S
RT
‑
Z1M high-impedance buffer amplifier with R&S
RT-ZP10 passive probe
Description of the buffer amplifier
Product description
R&S®RT‑Z1M
9Manual 1801.3142.02 ─ 05
1 = Buffer amplifier box
2 = R&S probe interface to connect an active probe to the buffer amplifier, and a contact ring to connect a
passive probe
3 = R&S probe interface to connect the buffer amplifier to an oscilloscope
4 = Release knob
5 = R&S RT-ZP10 passive probe
2.3.1 Buffer amplifier box
The buffer amplifier box contains active circuitry to attenuate, amplify or filter the
incoming signal and pass it to the 50 Ω input of the oscilloscope. There are no controls
or indicators on the buffer amplifier box.
2.3.2 Probe interface
The R&S RT‑Z1M is designed for connection to the Rohde & Schwarz probe interface
of the oscilloscope. The interface provides also a USB interface and supply voltages
(+5 V USB, +12 V high power). It transmits analog signals and digital data simultane-
ously.
The output of the R&S RT‑Z1M is connected to the oscilloscope. It consists of male
precision 7 mm (276 mil) coaxial connector and six pogo pins to ensure a thorough
connection.
Probes are connected to the input of the R&S RT‑Z1M. The Rohde & Schwarz probe
interface at the input provides the power supply and USB interface to recognize and
support active probes. It has also a contact ring to recognize a passive probe by its
readout pin. In any case, the probe is recognized automatically by the oscilloscope.
Figure 2-2: Output interface of the buffer amplifier
1 = Rohde & Schwarz probe interface with 7 mm (276 mil) coaxial connector and six pogo pins
2 = Release knob
Description of the buffer amplifier
Product description
R&S®RT‑Z1M
10Manual 1801.3142.02 ─ 05
2.3.3 Dimensions of buffer amplifier and probe
The R&S RT‑Z1M high-impedance buffer amplifier and the R&S RT-ZP10 passive
probe have the following dimensions (all values in mm):
Figure 2-3: Dimensions of the R&S
RT
‑
Z1M high-impedance buffer amplifier with R&S
RT-ZP10
2.4 Accessories
2.4.1 Supplied accessories
Table 2-2 lists the accessories supplied with the R&S RT‑Z1M high-impedance buffer
amplifier. To order additional probes from Rohde & Schwarz, use the order number
provided in the table.
Table 2-2: Supplied accessories
Item Quantity Description Order number
R&S RT-ZP10 with probe accessories 1 10:1 passive probe 1409.7550.00
2.4.2 Service accessories
To order accessories for servicing the probe, contact your Rohde & Schwarz service
center. The following accessories are available:
Table 2-3: Service accessories
Item Description
R&S RT-ZK1 The service kit is used to calibrate the buffer amplifier, to
do performance tests, and for servicing. The service kit
includes all adapters and accessories to connect the buffer
amplifier to the required measuring instruments.
R&S RT‑Z1M Service Manual The service manual contains a detailed description of the
performance test to verify the specifications, and other
important service procedures.
Accessories
Indice
Altri manuali R&S Amplificatore
