Equipment information

LeCroy 9420 Oscilloscope
Model: 9420
Date: 1992
Category: Measurement instruments
Group: Oscilloscope
Description: Digital Oscilloscope

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.

These manuals are available for the above equipment:

Manual Type: User Manual LeCroy-10857-Manual-Page-1-Picture
Pages: 216
Size: 7.64 Mbytes (8015294 Bytes)
Language: english
Date: 01 January 1989
Quality: Scanned document, all readable.
Upload date:
MD5: 2c8e6e16c6aac25cfcbb1f35a66c3ae7
Downloads: 497 since 14 July 2018
Uploaded by: irat

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


Manual Type: User Manual LeCroy-7130-Manual-Page-1-Picture
Pages: 232
Size: 6.48 Mbytes (6799000 Bytes)
Language: english
Quality: Scanned document, all readable.
Upload date:
MD5: 335e13855632cef6e3b213aae283e172
Downloads: 1537 since 13 September 2015

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


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