Rohde Schwarz NGU User Manual
R&S®NGU
Source Measure Units
User Manual
(;ÝIO2)
1179253102
Version 02
This manual describes the following R&S®NGU models and options with firmware version 1.00 and higher:
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R&S®NGU201 2-QUADRANT SMU (3639.3763.02)
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R&S®NGU401 4-QUADRANT SMU (3639.3763.03)
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R&S®NGU-B105 IEEE-488 (GPIB) interface (3661.0763.02 )
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R&S®NGU-K103 Digital I/O ports (3662.9335.02 )
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R&S®NGU-K104 Digital voltmeter functionality (3663.0390.02 )
●
R&S®NGU-K106 Battery simulation (3663.0625.02 )
© 2020 Rohde & Schwarz GmbH & Co. KG
Mühldorfstr. 15, 81671 München, Germany
Phone: +49 89 41 29 - 0
Email: info@rohde-schwarz.com
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.
1179.2531.02 | Version 02 | R&S®NGU
Throughout this manual, products from Rohde & Schwarz are indicated without the ® symbol, e.g. R&S®NGU is indicated as
R&S NGU
1
Safety Instructions
Risk of injury and instrument damage
The instrument must be used in an appropriate manner to prevent
electric shock, fire,
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●
●
●
Keep the "Basic Safety Instructions" and the product documentation
Riesgo de lesiones y daños en el instrumento
El instrumento se debe usar de manera adecuada para p
descargas eléctricas, incendios, lesiones o daños materiales.
●
●
●
especificaciones técnicas pueden contener condiciones adicionales
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Instrucciones de seguridad
Sicherheitshinweise
Consignes de sécurité
personal injury or instrument damage.
Do not open the instrument casing.
Read and observe the "Basic Safety Instructions" delivered as
printed brochure with the instrument.
Read and observe the safety instructions in the following sections.
Note that the data sheet may specify additional operating conditions.
in a safe place and pass them on to the subsequent users.
No abrir la carcasa del instrumento.
Lea y cumpla las "Instrucciones de seguridad elementales"
suministradas con el instrumento como folleto impreso.
Lea y cumpla las instrucciones de seguridad incluidas en las
siguientes secciones. Se debe tener en cuenta que las
para su uso.
Guarde bien las instrucciones de seguridad elementales, así como
la documentación del producto, y entréguelas a usuarios
posteriores.
revenir
1171.1307.42 - 05
2
Gefahr von Verletzungen und Schäden am Gerät
Betreiben Sie das Gerät immer ordnungsgemäß, um elektrischen
Schlag, Brand, Verletzungen von Personen oder Geräteschäden zu
verhindern.
●
●
●
●
Risque de blessures et d'endommagement de l'appareil
L'ap
les électrocutions, incendies, dommages corporels et matériels.
●
●
●
suivantes. Il ne faut pas oublier que la fiche technique peut indiquer
●
Öffnen Sie das Gerätegehäuse nicht.
Lesen und beachten Sie die "Grundlegenden Sicherheitshinweise",
die als gedruckte Broschüre dem Gerät beiliegen.
Lesen und beachten Sie die Sicherheitshinweise in den folgenden
Abschnitten; möglicherweise enthält das Datenblatt weitere
Hinweise zu speziellen Betriebsbedingungen.
Bewahren Sie die "Grundlegenden Sicherheitshinweise" und die
Produktdokumentation gut auf und geben Sie diese an weitere
Benutzer des Produkts weiter.
pareil doit être utilisé conformément aux prescriptions afin d'éviter
N'ouvrez pas le boîtier de l'appareil.
Lisez et respectez les "consignes de sécurité fondamentales"
fournies avec l’appareil sous forme de brochure imprimée.
Lisez et respectez les instructions de sécurité dans les sections
des conditions d’exploitation supplémentaires.
Gardez les consignes de sécurité fondamentales et la
documentation produit dans un lieu sûr et transmettez ces
documents aux autres utilisateurs.
1171.1307.42 - 05
이 기기는 업무용(A급) 전자파
적합기기로서 판매자 또는
사용자는 이 점을 주의하시기
바라며, 가정외의 지역에서
사용하는 것을 목적으로 합니다.
1171.0200.78-01
R&S®NGU
Contents
Contents
1 Documentation Overview......................................................................9
1.1 Manuals..........................................................................................................................9
1.2 Data Sheet......................................................................................................................9
1.3 Release Notes, Open Source Acknowledgment...................................................... 10
2 Welcome to R&S NGU..........................................................................11
3 Important Notes....................................................................................12
3.1 Symbols....................................................................................................................... 12
3.2 Ambient Conditions.................................................................................................... 12
3.3 Measurement Categories........................................................................................... 13
3.4 Mains Voltage.............................................................................................................. 13
3.5 Limits............................................................................................................................14
4 Getting Started..................................................................................... 15
4.1 Putting into Operation................................................................................................ 15
4.1.1 Safety............................................................................................................................ 16
4.1.2 Intended Operation....................................................................................................... 17
4.1.3 Unpacking and Checking the Instrument...................................................................... 18
4.1.4 Setting Up the Instrument............................................................................................. 19
4.1.4.1 Bench Operation........................................................................................................... 19
4.1.4.2 Rack Mounting.............................................................................................................. 20
4.2 Instrument Tour........................................................................................................... 20
4.2.1 Overview of Controls.....................................................................................................20
4.2.1.1 Front Panel....................................................................................................................20
4.2.1.2 Rear Panel.................................................................................................................... 22
4.2.2 Switching On the Instrument......................................................................................... 24
4.3 Trying Out the Instrument.......................................................................................... 25
4.3.1 Setting the Output Voltage and Current........................................................................ 26
4.3.2 Activating the Channel Output...................................................................................... 26
4.4 Maintenance and Support.......................................................................................... 27
4.4.1 Maintenance..................................................................................................................27
4.4.2 Contacting Customer Support.......................................................................................28
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5.2.2.1 Settings Button..............................................................................................................34
5.2.2.2 Voltage and Current Inputs........................................................................................... 35
5.3.1.1 Home Key..................................................................................................................... 37
Contents
5 Operating Basics..................................................................................29
5.1 Display Overview........................................................................................................ 29
5.1.1 Status Bar Information.................................................................................................. 30
5.1.2 Channel Display Area................................................................................................... 32
5.2 Using the Touchscreen...............................................................................................33
5.2.1 Using Gestures............................................................................................................. 33
5.2.2 Accessing Functionality in the Home Window.............................................................. 34
5.2.3 Input Data......................................................................................................................36
5.3 Front Panel Keys.........................................................................................................37
5.3.1 Menu Controls...............................................................................................................37
5.3.1.2 Settings Key.................................................................................................................. 37
5.3.1.3 User Key....................................................................................................................... 40
5.3.2 Navigation Controls.......................................................................................................41
5.3.3 Output and Channel Controls........................................................................................41
5.4 Power Derating............................................................................................................41
5.5 Operation Modes.........................................................................................................42
5.5.1 Voltage and Current Priority Modes.............................................................................. 43
6 Instrument Functions.......................................................................... 45
6.1 Setting the Channels Voltage and Current............................................................... 45
6.2 Activating the Channel Output.................................................................................. 46
6.2.1 Set Constant Resistance...............................................................................................47
6.2.2 Fast Transient Response.............................................................................................. 48
6.2.3 Output........................................................................................................................... 49
6.2.3.1 Impedance.................................................................................................................... 49
6.2.3.2 Delay............................................................................................................................. 50
6.2.3.3 Trigger Events...............................................................................................................51
6.2.3.4 Output Mode................................................................................................................. 52
6.3 Current Priority Mode................................................................................................. 53
6.4 High Capacitance Mode..............................................................................................54
6.5 Ranges / Digital Voltmeter (DVM)...............................................................................55
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6.10.1 Arbitrary.........................................................................................................................71
6.10.2 Ramp.............................................................................................................................74
Contents
6.6 Modulation Input......................................................................................................... 58
6.7 Battery Simulator........................................................................................................ 59
6.8 Protection.................................................................................................................... 63
6.8.1 Overcurrent Protection (OCP).......................................................................................63
6.8.2 Overvoltage Protection (OVP).......................................................................................64
6.8.3 Overpower Protection (OPP)........................................................................................ 64
6.8.4 Safety Limits..................................................................................................................65
6.9 Trigger / Digital I/O...................................................................................................... 66
6.10 Advanced Features..................................................................................................... 71
6.11 User Key.......................................................................................................................75
6.12 Screenshot...................................................................................................................76
6.13 Data Logging............................................................................................................... 77
6.14 FastLog........................................................................................................................ 79
6.15 CSV Settings................................................................................................................80
6.16 Graphical View Window..............................................................................................82
6.17 File Manager................................................................................................................ 84
6.18 Store and Recall ......................................................................................................... 85
6.19 Interfaces..................................................................................................................... 87
6.19.1 Network Connection......................................................................................................88
6.19.1.1 LAN Connection............................................................................................................ 89
6.19.2 USB Connection............................................................................................................91
6.19.3 GPIB Address............................................................................................................... 92
6.20 General Instrument Settings...................................................................................... 93
6.20.1 Licenses Management.................................................................................................. 93
6.20.2 Appearance Settings.....................................................................................................94
6.20.3 Sound Settings..............................................................................................................95
6.20.4 Date and Time...............................................................................................................96
6.20.5 Device Information........................................................................................................ 96
6.20.6 Update Device...............................................................................................................97
6.21 Device Documentation............................................................................................... 98
7 Remote Control Commands................................................................99
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Contents
7.1 Common Setting Commands.....................................................................................99
7.2 System Settings Commands....................................................................................102
7.3 Display Commands...................................................................................................104
7.4 Trigger Commands................................................................................................... 105
7.5 Configuration Commands........................................................................................ 107
7.5.1 Safety Limit Setting..................................................................................................... 107
7.5.2 Voltage Setting.............................................................................................................111
7.5.3 Current Setting............................................................................................................ 115
7.5.4 Resistance Setting.......................................................................................................119
7.5.5 Combined Setting of Voltage and Current Setting...................................................... 120
7.5.6 Output Setting............................................................................................................. 121
7.5.7 Range/DVM Setting.................................................................................................... 127
7.5.8 Source Priority Mode Setting...................................................................................... 130
7.5.9 Modulation Input..........................................................................................................130
7.5.10 Power Line Cycle Setting............................................................................................ 131
7.5.11 OCP Setting................................................................................................................ 131
7.5.12 OVP Setting................................................................................................................ 137
7.5.13 OPP Setting................................................................................................................ 140
7.5.14 USB Class Setting.......................................................................................................143
7.6 Measurement Commands........................................................................................ 143
7.7 Advanced Operating Commands............................................................................ 149
7.7.1 Arbitrary.......................................................................................................................150
7.7.2 Ramp...........................................................................................................................155
7.7.3 Digital I/O.................................................................................................................... 156
7.7.4 Battery Simulation....................................................................................................... 159
7.8 Data and File Management Commands.................................................................. 165
7.9 Status Reporting Commands...................................................................................174
7.9.1 STATus:OPERation Registers.....................................................................................174
7.9.2 STATus:QUEStionable Registers................................................................................ 176
Annex.................................................................................................. 179
A Additional Basics on Remote Control..............................................179
A.1 Messages and Command Structure........................................................................ 179
A.1.1 Messages....................................................................................................................179
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Contents
A.1.2 SCPI Command Structure...........................................................................................180
A.2 Command Sequence and Synchronization............................................................ 184
A.2.1 Preventing Overlapping Execution..............................................................................185
A.3 Status Reporting System......................................................................................... 185
A.3.1 Structure of a SCPI Status Register............................................................................185
List of commands.............................................................................. 190
Index....................................................................................................195
7User Manual 1179.2531.02 ─ 02
R&S®NGU
Contents
8User Manual 1179.2531.02 ─ 02
R&S®NGU
Documentation Overview
Data Sheet
1 Documentation Overview
This section provides an overview of the R&S NGU user documentation.
1.1 Manuals
You find the documents on the R&S NGU product page at:
www.rohde-schwarz.com/manual/ngu
Getting Started
Introduces the R&S NGU source measure units and describes how to set up and start
working with the instrument. The printed document is delivered with the instrument.
User manual
Contains the description of all instrument modes and functions. It also provides an
introduction to remote control, a complete description of the remote control commands
with programming examples, and information on maintenance and instrument interfaces. Includes the contents of the getting started manual.
The online version of the user manual provides the complete contents for immediate
display on the internet.
Basic safety instructions
Contains safety instructions, operating conditions and further important information.
The printed document is delivered with the instrument.
Service manual
Describes the performance test for checking the rated specifications, module replacement and repair, firmware update, troubleshooting and fault elimination, and contains
mechanical drawings and spare part lists. The service manual is available for registered users on the global Rohde & Schwarz information system (GLORIS, https://
gloris.rohde-schwarz.com).
1.2 Data Sheet
The datasheet contains the technical specifications of the R&S NGU source measure
units. It also lists all options with their order numbers and accessories.
See www.rohde-schwarz.com/brochure-datasheet/ngu
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Documentation Overview
Release Notes, Open Source Acknowledgment
1.3 Release Notes, Open Source Acknowledgment
The release notes list new features, improvements and known issues of the current
firmware version, and describe the firmware installation. The open source acknowledgment document provides verbatim license texts of the used open source software. It
can also be read directly on the instrument.
See www.rohde-schwarz.com/firmware/ngu.
10User Manual 1179.2531.02 ─ 02
R&S®NGU
Welcome to R&S NGU
2 Welcome to R&S NGU
The single source measure units are based on a classical transformer concept with linear regulators. This concept allows the instrument to achieve highest accuracy and
lowest residual ripple.
Multi-purpose protection functions are available which you can set separately, such as
overcurrent protection (OCP), overvoltage protection (OVP) and overpower protection
(OPP). If such a limit is reached, the affected output is automatically turned off and an
indicator icon (
Additionally, the R&S NGU is protected with overtemperature protection (OTP). This
safety feature protects the R&S NGU from overheating. When the temperature in the
source measure unit exceeds the OTP limit, the output is automatically cut off.
The Arbitrary function allows a freely definable voltage and current sequences with a
timeframe as short as 100 µs. It allows varying the voltage or current during a test
sequence, for example to simulate different charging conditions of a battery. With
"Ramp" function, the R&S NGU provides the operating condition to ramp up the supply
voltage within a defined timeframe of 10 ms to 10 s.
, , ) blinks on the display.
All R&S NGU source measure units are equipped with a color TFT display (800 pixels
x 480 pixels) and enhanced with touch input capability. The R&S NGU can be remotely
controlled via USB, LAN (LXI) interface and optional GPIB option.
The digital I/O interface installed at the rear panel is activated with an option, it allows a
single trigger-in signal to control multi trigger-out signals on the source measure unit,
providing many possibilities to control outputs and associated devices in the event
when a trigger occurs.
The user manual contains description of the functionalities that the instrument provides. The latest version is available for download at the product homepage (http://
www.rohde-schwarz.com/product/ngu).
11User Manual 1179.2531.02 ─ 02
R&S®NGU
Important Notes
Ambient Conditions
3 Important Notes
3.1 Symbols
Caution, general danger zone
Ground
PE terminal
ON (supply voltage)
OFF (supply voltage)
Ground terminal
3.2 Ambient Conditions
The allowed operating temperature ranges from +5 °C to +40 °C (pollution category 2).
The maximum relative humidity (without condensation) is at 80 %.
During storage and transport, the temperature must be between -40 °C and +70 °C. In
case of condensation during transportation or storage, the instrument requires approximately two hours to dry and reach the appropriate temperature prior to operation. The
instrument is designed for use in a clean and dry indoor environment. Do not operate
with high dust and humidity levels, if danger of explosion exists or with aggressive
chemical agents.
Any operating position may be used; however adequate air circulation must be maintained. For continuous operation, a horizontal or inclined position (integrated stand) is
preferable.
Specifications with tolerance data apply after a warm-up period of at least 30 minutes
at a temperature of 23 °C (tolerance -3 °C / + 7 °C).
The heat produced inside the instrument is guided to the exterior via temperature-controlled fan. Each channel has multiple temperature sensors which check the heat generation in the instrument and control the fan speed.
It is necessary to ensure that there is sufficient space around the instrument sides for
heat exchange. If the temperature inside the instrument increases more than the
12User Manual 1179.2531.02 ─ 02
R&S®NGU
Important Notes
Mains Voltage
allowed limit, overtemperature protection is triggered and the affected outputs are
switched off automatically.
Air circulation
Do not obstruct the ventilation holes!
3.3 Measurement Categories
This instrument is designed for supplying power-on circuits that are only indirectly connected to the low voltage mains or not connected at all. The instrument is not intended
for measurements within the measurement categories II, III or IV; the maximum potential against earth generated by the user must not exceed 250 V peak in this application.
The following information refers solely to user safety. Other aspects, such as the maximum voltage, are described in the technical data and must also be observed.
The measurement categories refer to transients that are superimposed on the mains
voltage. Transients are short, very fast (steep) current and voltage variations which
may occur periodically and non-periodically. The level of potential transients increases
as the distance to the source of the low voltage installation decreases.
●
Measurement CAT IV: Measurements at the source of the low voltage installations
(e.g. meters)
●
Measurement CAT III: Measurements in building installations (e.g. power distribution installations, power switches, firmly installed sockets, firmly installed engines
etc.)
●
Measurement CAT II: Measurements on circuits electronically directly connected to
the mains (e.g. household appliances, power tools, etc.)
●
0 (instruments without measured measurement category): Other circuits that are
not connected directly to the mains
3.4 Mains Voltage
The instrument uses 50 Hz / 60 Hz mains voltages ranging from 100 VAC, 115 VAC or
230 VAC (tolerance ± 10 %). Mains voltage must be set correctly by removing the fuse
holder and rotating until the correct voltage appears through the window and reinstalling the fuse holder. The input line fuse is accessible externally. Power socket and fuse
holder form a single unit.
You need to first disconnect the power cord from the connector before you can safely
replace the fuse (as long as the fuse holder is undamaged). Next, the fuse holder must
be pried out using a screwdriver. The starting point is a slot next to the contacts. The
fuse can then be forced out of its mounting and must be replaced with an identical fuse
(see information about the fuse type on the rear panel). The fuse holder is inserted
13User Manual 1179.2531.02 ─ 02
R&S®NGU
Important Notes
Limits
against the spring pressure until it locks into place. The use of mended fuses or short
circuiting the fuse holder is prohibited. Resulting damages are not covered by the warranty.
Safe operation
If the instrument is not in use, it must be switched off at the mains switch for safety reasons.
3.5 Limits
The R&S NGU is equipped with a protective overload feature. The protective overload
feature prevents damage to the instrument and is intended to protect against a possible electrical shock. The maximum values for the instrument must not be exceeded.
The protection limits are listed on the front panel of the R&S NGU to ensure the safe
operation of the instrument.
These protection limits must be adhered to:
Specification Limits
Maximum output voltage 20.05 VDC
Maximum output current 8.01 A (<= 6 V)
3.01 A (> 6 V)
Maximum voltage against earth 250 V peak
Maximum counter-voltage (same polarity) 20 V
Maximum reverse voltage (opposite polarity) 0.5 V
-20 V
Maximum reverse current sink current 8.01 A
Power supply 100 VAC, 115 VAC or 230 VAC (tolerance ± 10 %)
Frequency 50 Hz / 60 Hz
Maximum power output 60 W (R&S NGU201, R&S NGU401)
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R&S®NGU
4 Getting Started
4.1 Putting into Operation
This chapter describes how to set up the R&S NGU source measure units for the first
time.
Risk of injury due to disregarding safety information
Observe the information on appropriate operating conditions provided in the data sheet
to prevent personal injury or damage to the instrument. Read and observe the basic
safety instructions provided with the instrument, in addition to the safety instructions in
the following sections. In particular:
●
Do not open the instrument casing.
Getting Started
Putting into Operation
Risk of instrument damage due to inappropriate operating conditions
Specific operating conditions are required to ensure accurate measurements and to
avoid damage to the instrument. Observe the information on appropriate operating
conditions provided in the basic safety instructions and the instrument's data sheet.
Instrument damage caused by electrostatic discharge
Electrostatic discharge (ESD) can damage the electronic components of the instrument
and the device under test (DUT). Electrostatic discharge is most likely to occur when
you connect or disconnect a DUT or test fixture to the instrument's test ports. To prevent electrostatic discharge, use a wrist strap and cord and connect yourself to the
ground, or use a conductive floor mat and heel strap combination.
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Getting Started
Putting into Operation
Risk of instrument damage during operation
An unsuitable operating site or test setup can cause damage to the instrument and the
connected devices. Ensure the following operating conditions before you switch on the
instrument:
●
The instrument is dry and shows no sign of condensation
●
The instrument is positioned as described in Chapter 4.1.4.1, "Bench Operation",
on page 19
●
The ambient temperature does not exceed the range specified in the data sheet
●
Signal levels at the input connectors are all within the specified ranges
●
Signal outputs are correctly connected and not overloaded
EMI impact on measurement results
Electromagnetic interference (EMI) may affect the measurement results.
To suppress generated electromagnetic interference (EMI):
●
Use suitable shielded cables of high quality. For example, use double-shielded RF
and LAN cables.
●
Always terminate open cable ends.
●
Note the EMC classification in the data sheet.
4.1.1 Safety
Recommendations on secure operation
The R&S NGU is designed to operate at local workplaces or in secured networks
(LAN). It should not be accessible from the internet, because of a potential security
risk, e.g. attackers could misuse or damage your device.
Please always install the latest firmware.
It is highly recommended that you work closely with your IT department or system
administrator to ensure compliance with your company policies when connecting devices to your company's network.
This instrument was built in compliance with DIN EN 61010-1, safety regulations for
electrical instruments, control units and Iaboratory equipment.
It has been tested and shipped from the plant in safe condition. It is also in compliance
with the regulations of the European standard EN 61010-1 and the international standard IEC 61010-1.
To maintain this condition and ensure safe operation, you must observe all instructions
and warnings given in this user manual. Casing, chassis and all measuring ports are
16User Manual 1179.2531.02 ─ 02
R&S®NGU
Getting Started
Putting into Operation
connected to a protective earth conductor. The instrument is designed in compliance
with the regulations of protection class I.
For safety reasons, the instrument may only be operated with authorized safety sockets. The power cable must be plugged in before signal circuits may be connected.
Never use the product if the power cable is damaged. Check regularly if the power
cables are in perfect condition. Choose suitable protective measures and installation
types to ensure that the power cable cannot be damaged and that no harm is caused
by tripping hazards or from electric shock, for instance.
Risk of electric shock
It is prohibited to disconnect the earthed protective connection inside or outside of the
instrument!
If it is assumed that a safe operation is no longer possible, the instrument must be shut
down and secured against any unintended operation.
Safe operation can no longer be assumed when:
●
Instrument shows visible damage
●
Instrument includes loose parts
●
Instrument no longer functions properly
– After an extended period of storage under unfavorable conditions (e.g. out-
doors or in damp rooms)
– After rough handling during transport (e.g. packaging that does not meet the
minimum requirements by post office, railway or forwarding agency)
Exceeding the low voltage protection
Use insulated wires and not bare wires for the terminal connection.
It is assumed that only qualified and trained personnel service the source measure
units and the connected loads.
Before 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.
4.1.2 Intended Operation
The instrument is intended only for use by personnel familiar with the potential risks of
measuring electrical quantities.
For safety reasons, the instrument may only be connected to properly installed wall
outlets. Separating the ground is prohibited.
The power cable must be inserted before signal circuits may be connected.
17User Manual 1179.2531.02 ─ 02
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Getting Started
Putting into Operation
Use only the power cable included in the delivery package. See "Delivery package"
on page 19.
Before each measurement, measuring cables must be inspected for damage and
replaced if necessary. Damaged or worn components can damage the instrument or
cause injury.
The instrument 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, and in some cases, death.
Applicable local or national safety regulations and rules for the prevention of accidents
must be observed in all work performed.
The instrument is designed for use in the following sectors: Industrial, residential, business and commercial areas and small businesses.
The instrument is designed for indoor use only. Before each measurement, you need
to verify at a known source if the instrument functions properly.
To disconnect from the mains, unplug the IEC socket on the back panel.
See Table 4-1 for the general data on the instrument specification.
Table 4-1: General data on instrument specification
General data
Mains nominal voltage AC 100 V / 115 V / 230 V (±10 %) 50 Hz to 60 Hz
Maximum power consumption 400 W
Mains fuses 2 x IEC T4.0H 250 V
Operating temperature range +5 °C to +40 °C
Storage temperature range -20 °C to +70 °C
Humidity noncondensing 5 % to 95 %
Display TFT 5" 800 pixels x 480 pixels WVGA Touch
Rack installation R&S HZN96 rack adapter 2U (P/N: 3638.7813.02)
Dimensions (W x H x D) 222 mm x 97 mm x 436 mm (8.74" x 3.82" x 17.17")
Weight R&S NGU201 7.1 kg (15.65 lb)
R&S NGU401 7.1 kg (15.65 lb)
4.1.3 Unpacking and Checking the Instrument
Unpack the R&S NGU source measure unit carefully and check the content of the
package.
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R&S®NGU
Getting Started
Putting into Operation
●
Check the equipment for completeness using the delivery note and package contents list for the various items.
●
Check the instrument for any damage and loose parts. If there is any damage,
immediately contact the carrier who delivered the instrument.
Packing material
Retain the original packing material. If the instrument needs to be transported or shipped later, you can use the material to protect the control elements and connectors.
Risk of damage during transportation and shipment
Insufficient protection against mechanical and electrostatic effects during transportation
and shipment can damage the instrument.
●
Always ensure that sufficient mechanical and electrostatic protections are provided
●
When shipping an instrument, the original packaging should be used. If you do not
have the original packaging, use sufficient padding to prevent the instrument from
moving around inside the box. Pack the instrument in antistatic wrap to protect it
from electrostatic charging
●
Secure the instrument to prevent any movement and other mechanical effects during transportation
Delivery package
The package contents contain the following items:
●
R&S NGU source measure unit
●
Four power cables
●
One printed Getting Started manual
●
One document folder containing a printed Basic Safety Instructions guide
4.1.4 Setting Up the Instrument
The R&S NGU is designed for benchtop and rackmount operation.
4.1.4.1 Bench Operation
On a benchtop, the R&S NGU source measure unit can either lie flat or stand on its
feet. As shown in Figure 4-1, feet on the bottom can be folded out to set the instrument
in an inclined position.
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4.1.4.2 Rack Mounting
Getting Started
Instrument Tour
Figure 4-1: Operating positions
Positioning of instrument
The instrument must be positioned in a manner that allows you to disconnect the unit
from the mains at any time and without restrictions.
The instrument can be installed in a 19" rack using the rack adapter R&S HZN96 (P/N
3638.7813.02). Proceed according to the installation instructions supplied with the rack
adapter.
Ambient temperature
Place the R&S NGU source measure unit in an area where the ambient temperature is
within +5 °C to +40 °C. The R&S NGU source measure unit is fan-cooled and must be
installed with sufficient space along the sides to ensure free flow of air.
4.2 Instrument Tour
This chapter provides an overview of all the controls available in the R&S NGU models
and steps to switch on the instrument for the first time.
● Overview of Controls...............................................................................................20
● Switching On the Instrument...................................................................................24
4.2.1 Overview of Controls
4.2.1.1 Front Panel
The front panel of the R&S NGU is shown in Figure 4-2. The function keys and navigation controls are located beside the display. The various connectors are located at the
right side of the display.
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Getting Started
Instrument Tour
Figure 4-2: Front panel of NGU201 model
1 = Display with touch screen
2 = Menu control keys
3 = Rotary knob and back key
4 = Output key
5 = Output terminals
6 = USB connector
7 = Power key
Display (1)
The display is a color TFT touch screen with measurement settings and functions provided in the channel display area. The status bar which provides at both device and
channel level shows the device operating mode and channel settings of the instrument.
For a detailed description on-screen layout, see Chapter 5.1, "Display Overview",
on page 29.
Menu control keys (2)
The menu control keys allow you to access the home window, device/channel menu
window and user button key in the instrument.
For a detailed description on menu control keys, see Chapter 5.3.1, "Menu Controls",
on page 37.
Rotary knob and back key (3)
The rotary knob and back key are used for menu navigation and value adjustment in
the instrument.
For a detailed description on rotary knob and back key, see section Chapter 5.3.2,
"Navigation Controls", on page 41.
Output key (4)
The output key allows you to enable or disable the output power.
Refer to datasheet for the channel voltage/current limits in the source and sink mode.
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Instrument Tour
Output terminals (5)
The R&S NGU is a single channel source measure unit and it comes with the following
models:
●
NGU201 model is a 2 quadrant source measure unit
●
NGU401 model is a 4 quadrant source measure unit
Both models are equipped with "Force (High)", 2 x "Force (Low)", "Sense (High)",
"Sense (Low)" and a ground terminal.
With a jumper connecting the ground terminal and the additional "Force (Low)" connector, the R&S NGU provides good ground connection which is essential when measuring very small voltages and currents.
USB connector (6)
The USB connector is a Type-A connector. You can connect a USB flash drive to this
connector to perform a firmware update, store logging data or screen shots.
Power key (7)
The [Power] key switches the instrument on and off.
4.2.1.2 Rear Panel
Figure 4-3 shows the rear panel of the R&S NGU with its connectors.
Figure 4-3: Rear panel of NGU201 model
8 = AC inlet with fuse holder and voltage selector
9 = Channel 1 rear panel connector. For NGU201, the last two pins are labeled as DVM+ and DVM- as an
option. For NGU401, the pins are labeled as MOD+ and MOD-.
10 = USB connector (Device)
11 = USB connector (Host)
12 = Ethernet (LAN) connector
13 = Cover for optional IEEE-488 (GPIB) Interface
14 = Digital I/O connector
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Instrument Tour
AC inlet with fuse holder and voltage selector (8)
Main supply cord
Do not use detachable mains supply cord with inadequate rating.
The power cable must be plugged in before signal circuits can be connected. Do not
use the product if the power cable is damaged. See Chapter 4.2.2, "Switching On the
Instrument", on page 24 for more information.
The built-in voltage selector selects the mains voltage between 100 V, 115 V and 230
V. All voltage settings are using the same fuse rating.
Channel connectors (9)
Output terminals
Either the output terminals at the front panel or those at the back panel can be used.
Using both terminals at the same time can cause instrument malfunction.
Digital voltmeter (DVM)
The DVM+ and DVM- pins on the channel connector are available only with NGU201
model equipped with option R&S NGU-K104 (P/N: 3663.0390.02 ).
Modulating signal (MOD)
The MOD+ and MOD- pins on the channel connector are available only with NGU401
model.
The channel connectors contain both output ("F+", "F-") and sense ("S+", "S-") connections.
USB connectors (11, 12)
The USB host connector (Type-A) can be used for mass storage devices like the USB
connector at the front panel.
The USB device connector is a Type-B connector for remote control operation.
Ethernet connector (13)
10/100 Ethernet port for remote control operation via the local area network.
For a detailed description on the connection setup, see Chapter 6.19.1.1, "LAN Con-
nection", on page 89.
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Option IEEE-488 (GPIB) interface (14)
An IEEE-488 (GPIB) interface can be ordered with option R&S NGU-B105 (P/N:
3661.0763.02). This interface is not user installable.
Digital I/O connector (15)
The Digital I/O option, R&S NGU-K103 (P/N: 3662.9335.02) must be installed for this
function to be available in the instrument.
Figure 4-4: Digital I/O connector (female socket front view)
Table 4-2: Digital I/O pin layout
Pin Signal Direction Pin Signal Direction
1 *Inhibit Ch1 IN 9 - -
2 Ext. Trigger Ch1 IN 10 - -
3 Digital In1 IN 11 Digital Output
4 Digital Output Out1 OUT 12 -- -
5 - 8 Gnd - 13 - 15 Gnd -
* The inhibit signals can be used to turn off the outputs by a digital hardware signal.
Table 4-3: Inhibit signals
Signal name Pin Descriptions
Inhibit Ch1 Pin 1 of Digital I/O con-
nector
4.2.2 Switching On the Instrument
Before switching on the instrument, check that all the instructions in the “Basic Safety
Instruction” brochure and safety measures in previous sections are observed. Also,
check if the value on the voltage selector corresponds to the mains voltage (100 V, 115
V or 230 V).
OUT
Fault
If the inhibit signal goes active, channel 1 output
is turned off.
The inhibit signal is low active (inverted logic).
Fuse rating
The R&S NGU uses the same fuse ratings for all mains voltages.
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Getting Started
Trying Out the Instrument
To change power fuse / mains voltage setting:
1. Peel off the yellow label sticker on the AC inlet.
2. Release the latch of the fuse holder which is located at both side of the socket and
pull it out.
3. Pull out the removable part of the fuse holder.
4. Turn this removable part until the correct voltage label (100, 115 or 230) is dis-
played in the window of the holder.
5. Return the fuse holder to its position in the panel.
To switch on instrument:
1. Connect the power cable to the AC power connector on the rear panel of the
R&S NGU.
2. Connect the power cable to the socket outlet.
3. Press [Power] key on the front panel.
The instrument performs a system check, boots the operating system, and starts
the R&S NGU firmware.
By default, all output channels are turned off when the instrument is switched on to
prevent connected loads from being damaged unintentionally.
During startup, the R&S NGU is loaded with the last saved instrument settings from
internal memory. See Chapter 6.18, "Store and Recall ", on page 85.
To switch off instrument:
1. Press [Power] key.
All current settings are saved to internal memory and the firmware shuts down.
2. Disconnect the AC power cable from the instrument.
4.3 Trying Out the Instrument
This chapter describes some basic functions that you can perform with the R&S NGU.
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Trying Out the Instrument
Source and sink current
The NGU201 is a 2 quadrant source measure unit whereas the NGU401 is a 4 quadrant source measure unit. Both models are able to source and sink current. When the
voltage across the output terminal exceeds the set voltage, current flows into the
instrument.
The default behavior "Auto" can be configured in output menu to set the output operating mode, see Chapter 6.2.3.4, "Output Mode", on page 52.
On the display, sink mode is in operation if negative current in shown for NGU201.
However, if both voltage and current are shown as opposite signs (e.g. negative voltage and positive current), it indicates that NGU401 is operated in the sink mode. See
also "CR mode" on page 27.
4.3.1 Setting the Output Voltage and Current
1. Press [Home] key.
The R&S NGU displays the home window.
2. Select voltage or current parameter in the home window.
The R&S NGU displays an on-screen keypad to set the value.
3. Enter the required value.
4. Confirm value with the unit key (V/mV or A/mA).
See "Source and sink current" on page 26 for more information on the operating
modes supported in different models.
4.3.2 Activating the Channel Output
The output voltages can be switched on or off regardless of the instrument's operating
mode.
To switch on or off channel output.
► Press [Output] key on the front panel.
The R&S NGU outputs the set voltage level on the output terminal.
Depending on the operating mode which the R&S NGU is operated in, the following
are observed:
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Getting Started
Maintenance and Support
CR mode
CR mode is available only with NGU201 model.
CR mode is a special case of sink mode in which the instrument behaves like a constant resistor. Only in this mode, the display font color in the home window turns cyan.
In "normal" sink mode, the colors are the same as in source mode: green if the current
flowing into the R&S NGU is below the set current and red if the current is limited to the
set value. The only visible indication of sink mode is the change of sign of the current
readout to "Minus".
Color illuminated on front panel keys and display
font color of voltage and current in home window
Green
Red
Cyan
Also, the operating symbol mode (CV, CC or CR) is displayed at the channel status
bar.
4.4 Maintenance and Support
4.4.1 Maintenance
Operating mode
Constant voltage mode (CV)
Constant current mode (CC)
Available only with NGU201 model
Constant resistance mode (CR)
Note: Instrument is operated in sink mode and
"Constant Resistance" is activated.
Regular maintenance improves the life span of the instrument, the following chapter
provides information on instrument maintenance.
Cleaning
Before cleaning the instrument, ensure that it has been switched off and the power
cable is disconnected.
Clean the outer case of the instrument at regular intervals, using a soft, lint-free dust
cloth.
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