Información del equipo:

LeCroy 9420 Osciloscopio
Fabricante:
LeCroy
Modelo: 9420
Fecha: 1992
Categoría: Los instrumentos de medición
Grupo: Osciloscopio
Descripción: Digital Oscilloscope
Información:
                                    INTRODUCTION	

The LeCroy 9420 is a wide bandwidth digital oscilloscope
suited to a variety of engineering design and test
applications. It is used to capture, analyze, display and
archive electrical waveforms in fields such as analog and
digital engineering, automated test and measurement,
telecommunication and electronics research.

9420 ARCHITECTURE	

The 9420 features two 1.00 mega sample/second 8-bit Flash
ADC systems, two 5OK non-volatile memories for waveform
acquisition and storage, and an additional four 50K memories
for waveform processing and temporary storage. High-speed
internal data transfer and processing are performed using a
multi-processor system. The central processor is a powerful
Motorola 68020 microprocessor which performs computations
and controls the oscilloscope’s operation.

All front-panel knobs and buttons are constantly monitored
by the internal processor, and front-panel setups are
rapidly reconfigured via the unit’s internal 16-bit bus.
Data are quickly processed according to the selected
frontpanel setups, and are transferred to the display memory
for direct waveform display or stored in the 9420’s
reference memories.

The 68020 controls the unit’s GFIB (IEEE-488) remote control
port, as well as the RS-232-C port which is used to directly
interface the 9420 to a digital plotter, printer, remote
terminal or other slow-speed device.

ADCs AND MEMORIES 

Each of the 9420’s two identical input channels is equipped
with a 00 megasample/second, 8—bit ADC and a 50 kiloword
acquisition memory (see Figure 4). This dual ADC
architecture ensures absolute amplitude and phase
correlation, maximum ADC performance for both single- and
dual-channel acquisition modes, large record lengths and
excellent time resolution.

The 9420’s two 5OK acquisition memories simplify transient
capture by providing very long waveform records that capture
waveforms even when trigger timing or signal speed is
uncertain. In addition, a special expansion facility
magnifies waveforms by up to 1000 times the selected
time-base speed.

The 9420 oscilloscope is capable of acquiring and storing
repetitive signals at a Random Interleaved Sampling (RIS)
rate of 10 giga-samples/second. RIS is a high-precision,
digitizing technique that enables measurement of repetitive
signals to a bandwidth of 350 MHz with an effective sampling
interval of 100 psec and measurement resolution of 5 psec.
The 9420 assures precision measurements over its entire
range of operation.

TRIGGER	

The 9420’s digitally-controlled trigger system offers an
extensive range of trigger capabilities. Front-panel and
menu controls let the user choose the appropriate trigger
function for the signal. 
In the standard trigger mode the 9420’s front-panel controls
are used to select and set parameters such as pre- and
post-trigger recording, sequence and roll modes, in addition
to the Auto, Normal and Single (Hold) modes. The trigger
source can be line, external or either of the two inputs.
The coupling is selected from HF, AC, LF REJect, HF REJect
and DC and the slope from positive and negative.
The SMART trigger facility provides a complete range of
sophisticated and versatile trigger features. The following
trigger classes and operational modes are available:

AUTOMATIC CALIBRATION	
The 9420 has an automatic calibration facility that ensures
overall vertical accuracy of db 2% of full scale and a
time-base interpolator accuracy of db 20 psec RMS for the
unit’s crystal-controlled time base.
The time base is calibrated each time the 94205s time-base
control is adjusted to a new Time/div setting; vertical gain
and offset calibration take place each time the front-panel
fixed gain control for either Chan 1 or Chan 2 is adjusted
to a new Volts/div setting. Both channels are also
calibrated each time the Bandwidth Limit button is pressed.
In addition, the 9420 performs periodic calibration to
ensure the long term stability at a particular setting.

DISPLAY

The 9420’s large 12.5 X 17.5 cm (5 X 7 inches) screen
displays waveforms with high resolution and serves as an
interactive, user-friendly interface via a set of
pushbuttons located immediately to the left and right of the
CRT. The oscilloscope displays up to four waveforms, while
simultaneously reporting the parameters controlling signal
acquisition. In addition, the screen presents internal
status and measurement results, as well as operational,
measurement, and waveform analysis menus.
A hard copy of the 9420’s screen is available via the unit’s
front-panel screen dump button. Plotting is done in parallel
with normal oscilloscope operation.


Estos manuales están disponibles para el equipo anterior:

Tipo de manual: Manual del usuario LeCroy-7130-Manual-Page-1-Picture
Páginas: 232
Tamaño: 6.48 Mbytes (6799000 Bytes)
Idioma Inglés
Revisión:
Manual-/ número de identificación:
Fecha: mayo 1992
Calidad: Documento Scaned, todo legible.
Fecha de carga:
MD5: 335e13855632cef6e3b213aae283e172
Descargas: 547 desde 13 septiembre 2015
Información:
REMOTE CONTROL MANUAL

1 General Information
Initial Inspection 1
Warranty 1
Product Assistance 1
Maintenance Agreements 1
Document Discrepancies 2
Service Procedure 2
Return Procedure 2
2 About Remote Control
GPIB Implementation Standard 3
Program Messages 3
Commands and Queries 4
Local and Remote State 5
Program Message Form 5
Command/Query Form 6
Response Message Form 9
3 GPIB Operation
GPIB Structure 11
Interface Capabilities 11
Addressing 12
GPIB Signals 12
IEEE 488.1 Standard Messages 13
Programming GPIB Transfers 15
Programming Service Requests 19
Instrument Polls 21
Driving a Hard-copy Device 25
4 RS-232-C Operation
Introduction 29
RS-232-C Pin Assignments 29
RS-232-C Configuration 30
Commands Simulating GPIB Commands 33
5 System Commands
Organization 35
Command Summary 35
Command Execution 37
Command Notation 37
6 Waveform Structure
Introduction 179
Logical Data Blocks of a Waveform 179
Inspect? Command 180
Waveform? Command 182
Waveform Command 187
More Control of Waveform Queries 188
High-speed Waveform Transfer 188
7 Status Registers
Overview of Status and Service Request Reporting 191
Status Byte Register (STB) 193
Standard Event Status Register (ESR) 194
Standard Event Status Enable Register (ESE) 195
Service Request Enable Register (SRE) 195
Parallel Poll Enable Register (PRE) 195
Internal State Change Status Register (INR) 195
Internal State Change Enable Register (INE) 196
Command Error Status Register (CMR) 196
Device Dependent Error Status Register (DDR) 196
Execution Error Status Register (EXR) 196
User Request Status Register (URR) 196
Appendix A
Example 1: Use of the Interactive GPIB Program ’IBIC’
Example 2: GPIB Program for IBM PC (High-level Function
Calls) Example 3: GPIB Program for IBM PC (Low-level
Function Calls)
Appendix B
The Waveform Template
LeCroy-7130-Manual-Page-1-Picture


Tipo de manual: Manual del usuario LeCroy-10857-Manual-Page-1-Picture
Páginas: 216
Tamaño: 7.64 Mbytes (8015294 Bytes)
Idioma Inglés
Revisión:
Manual-/ número de identificación:
Fecha: 01 enero 1989
Calidad: Documento Scaned, todo legible.
Fecha de carga:
MD5: 2c8e6e16c6aac25cfcbb1f35a66c3ae7
Descargas: 2 desde 14 julio 2018
Uploaded by: irat
Información:
1	General Information

Initial Inspection	1

Warranty	1

Product Assistance	1

Maintenance Agreements	1

Documentation Discrepancies	2

Service Procedure	2

Return Procedure	2

2	9420 Product Description

Introduction	3

9420 Architecture	3

ADCs and Memories	4

Trigger	4

Automatic Calibration	5

Display	5

Manual/Remote Control	6

Specifications	6

3	9450 Product Description

Introduction	13

9450 Architecture	13

ADCs and Memories	14

Trigger	14

Automatic Calibration	15

Display	15

Manual/Remote Control	16

Specifications	16

4	Installation

Safety Information	23

Operating Voltage	23

Power On	23

5	Display Layout

Real Time Clock Field (I)	26

Menu Field (II)	26

Icon Field (III)	26

Trigger Delay Field (IV)	26

Time and Frequency Field (V)	26

Abridged Trigger Configuration Field (VI)	26

Abridged Front-panel Status Field (VII)	27

Displayed Trace Field (VIII)	27

Message Field (IX)	28

Trigger Level Indicator Fields (X)	28

6	Manual Operation

Vertical Controls	29

9420 Time-base Controls	32

9450 Time-base Controls	35

Probes	37

Bandwidth Limit	37

Trigger controls (Standard)	37

Displaying Traces	44

Display Control and Expansion	45

Standard Waveform Processing	49

Screen Adjustments	51

Cursors	51

Pulse Parameters	5 6

Remote Control and Interruption	63

Automatic Setup	63

Menu Field (II) Controls	63

Panel Status Menu	64

Memory Status Menu	66

Saving and Recall of Front-Panel Setups	72

Auxiliary Setups (6)	75

X Versus Y Display	82

Store Menu	85

Special Modes	86

7	The SMART Trigger

Introduction	89

Applications	89

Manipulating the SMART Trigger	97

Single-Source Trigger Modes	100

Multi-Source Trigger Modes	111

8	The Rear Panel

Mains Voltage Selection (60)	127

Fuse Protection	127

Power Switch (59)	127

Accessory Power Connectors (66)	127

GPIB and RS-232-C Port Selection (63)	128

RS-232-C Connector (61)	128

Accessory Control (62)	129

BNC Connectors	129

External CK Input	129

Sampling CK Output	129

Trigger Out	129

Trigger Veto	129

Reset (64)	130

9	Getting Started

Waveform Acquisition	131

Saving and Recalling Front-Panel Setups	144

Storing and Recalling Waveforms	145

Waveform Expansion	146

Waveform Processing	153

10	Getting More From Your 9420/50

Rapid Response of the Front-panel Controls	157

Accurate Amplitude Measurements	157

Accurate Time Measurements	158

Auto-Calibration	161

11	Waveform Processing Option (WP01)

Processing Capabilities	163

Summed Average	164

Continuous average	166 k

Arithmetic	168

Extrema	169

Functions	171

Enhanced Resolution	172

12 FFT Option (WP02)

Fourier Transform	185

FFT Power Average	188

Processing Facilities	189

Cursors	189

F FT Interruption (Abort)	189

F FT Algorithms	190

Examples of FFT Processing	193

FFT Glosssary	196

Error Messages	200

References	201
LeCroy-10857-Manual-Page-1-Picture


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