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Additional Generator Controls 1250 Frequency Response Analyzer

9-6 AMK/1250/2

Figure 9.5 - Amplitude Compression flow diagram.

Table of Contents

Default Chapter3
- Declaration of Conformity3
- Table of Contents6
Chapter 1 General Information14
- Introduction15
- Basic Measuring Set-Up15
- The Instrument Essentials16
- Additional Facilities17
- 1250 Variants19
- Options20
  - CWB / 1260_Op / Issue 921
Chapter 2 Installation23
- Safety24
- General Safety Precautions24
  - Electromagnetic Compatibility25
- Connecting the Ac Mains26
  - Safety Precautions: Earthing26
  - Procedure26
- Accessories27
- Rack Mounting27
Chapter 3 Switching on and Initialising38
- Switch on38
- Initialising39
- Resetting40
Chapter 4 Making Measurements: the Generator42
- Simple Measurements42
- Setting the Generator42
- Checking Generator Settings: Using the Status Displays44
Stopping the Generator45
- Generator Stop @ Key46
- Applications of the Stop @ Key46
- Generator Overload Protection47
- Starting the Generator45
Chapter 5 Making Measurements: the Analyzers49
- Introduction49
- Setting the [ANALYZER COMMON] Menu49
- Setting Individual Analyzers53
- Measurement Start54
- Stopping the Analyzer; Stop and Break Keys55
- Changing Menus During Recycle55
- Measurement Start Point55
  - Implementation of Delay55
  - Amk/1250/355
Chapter 6 The Sweep Facility57
- Introduction57
- Logarithmic Sweep57
- Linear Sweep57
- Setting up a Logarithmic or Linear Sweep58
- Executing the Sweep58
- Automatic Sweep Time58
Stopping and Re-Starting the Sweep59
- Commands Which Produce "Sweep Idle" or "Hold" Status60
- End of Sweep Conditions59
- Further Sweeps59
- Stopping and Re-Staring the Sweep59
  - Introduction59
  - Commands Which Produce "Sweep Stop" Status59
- Changing Parameters in MID-Sweep60
- Harmonic Sweep60
- Chfr/1250/261
Chapter 7 The Display Menu and Mini Status63
- Introduction63
- Sources64
- Co-Ordinates64
- Mini Status Display65
  - Chfr/1250/265
Chapter 8 Menu Summary66
- Introduction71
Chapter 9 Additional Generator Controls71
- The Variable Key71
- Amplitude Compression74
Chapter 10 Facilities for more Complex Measurements79
- The Function Key79
- Data Flow Schematic85
Chapter 11 Additional Displayed Information87
- The Status Key87
- Introduction87
- Error Codes94
  - Introduction94
  - Error Codes: Summary94
- Error Codes: Details96
- The Data Output Key101
Chapter 12 Recording, Learning and Storing Facilities 12.1 the Data Output Key102
- Serial Poll106
- Terminator and Separator106
The File107
- Introduction107
- Maximum File Size107
- Selecting File Size107
- Starting a File108
- Reading from the File108
Learnt Programs109
- Introduction109
- Learning a Program: from the Front Panel109
- Learning a Program: from an External Device110
- Executing a Program111
- Editing a Program: from the Front Panel111
- Editing a Program: from an External Device112
- Copying a Program112
- Program Pause/Continue Key113
- Example Programs113
- Error Messages Displayed During Program Running113
Y Plotter114
- Introduction114
- Setting up a Plot: Non-Plotter Menus114
- The [PLOTTER COMMON] Menu115
- The [PLOTTER X-AXIS] and [PLOTTER Y-AXIS] Menus116
- The [PLOTTER SCALING] Menu117
- Performing a Plot118
- Bode and Nyquist Plots119
- Adjusting the Plotting Field to Suit Preprinted Chart Paper120
- Pen Selection with Two Pen Plotters121
- Plotting Data from the File121
Chapter 13 The RS423 and GPIB Ports. Remote Control122
Introduction122
- GPIB Capacity Code122
Connections125
RS423 Baud Rate125
RS423 Input Command Terminator Character; RS423 Character Frame125
GPIB Switches126
- Address Switches127
- Input Command Terminator Character Switches127
- Talk Only Switch127
- GPIB Switch Example127
REMOTE/LOCAL Facility128
- Local Lock-Out129
1250 Command Codes130
- Introduction130
- Command Code Format130
- Generator Commands131
- Synchroniser Commands131
- Amplitude Compression Commands132
- Auxiliary Generator Commands132
- Analyzer Commands132
- Sweep Commands133
- Display Commands133
Command Codes130
- GPIB Controller: Language Used in Program Examples140
- Command Query140
- Measurement Output Selection141
  - Via RS423 Port141
  - Via GPIB Interface141
- Measurement Output Rate142
  - Via RS423 Port142
  - Via GPIB Interface142
- Measurement Output Format142
- Serial Poll/Parallel Poll146
- Learnt Programs. External Storing and Reloading148
  - RS423 Port, Device Control Characters148
  - Procedure for Storing a Learnt Program Externally, Via Rs423 Port149
- Via GPIB Port149
- Via RS423 Port149
- Reloading a Learnt Program to 1250 Via GPIB150
  - Example of Controller Program for Transferring Learnt Program150
- File Output151
- GPIB Plotting152
  - Operating Sequence for Gpib Plotter, Using Acontroller153
- Combinations of RS423 and GPIB Devices153
Chapter 14 Break, Self Test, Time Display and Power Fail154
- The Break Key155
- Self Test155
- Time Display157
Power Fail158
Chapter 15 Options160
Synchroniser Unit 12501160
- Introduction160
- Description160
- Installation160
- Connecting up160
- Modes of Operation161
- The Synchroniser Menu163
- Procedure for Establishing the Sync. Locked State166
- Synchroniser Status167
- Measuring Harmonics: Use of Order Analysis169
Modulator/Demodulator Unit 12502170
- Introduction170
- Installation170
- Connections170
- Setting up170
Analog Plotter Interface 12503171
- Introduction171
- Installation171
- Preset Controls172
- Setting up and Performing a Plot172
- Introduction173
- Description173
- Installation173
- Setting up174
Chapter 16 The 1251 Multichannel Analyzer System176
Introduction176
Description176
System Configuration176
- 1250-1251 Interface Bus176
- IEEE 488 Interface Bus176
Connecting up178
- Safety: Connecting the Ac Mains178
- Connecting up the 1250-1251 Interface Bus178
1251 Unit Identification Switches179
- Analyzer Channel Numbering179
Manual Operation of the System179
- Introduction179
- Manual Setting up of the 1251 System179
- Setting up the 1251 Analyzers180
- Displaying and Plotting Data from the 1251 Analyzers180
Remote Operation of the System181
- Introduction181
- GPIB Capability Code181
- Setting up the GPIB Configure Menu182
- Data Transfer Speeds182
- GPIB Output Buffers182
- GPIB Addresses183
- ASCII Format183
- Dump Mode Format184
1251 Multichannel Analyzer Specification185

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