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INTRODUCTION Page 3
CYBERAMP 380, COPYRIGHT MARCH 2002, AXON INSTRUMENTS, INC.
In many recording situations, sound is helpful in determining the quality of the recording. Typical
situations include EMG conduction velocity experiments and extracellular spike activity
measurements. To this end, the CyberAmp 380 is furnished with a versatile audio monitor that
samples the signal activity on any of its eight channels or an external input. Two audio modes are
provided: Tone and Click. "Tone" is most suitable for listening to DC levels and slowly changing
signals. "Click" is most suitable for listening to AC activity. Because the audio monitor is an output
device that does not affect the data recorded by the data acquisition system, the controls for this
section of the instrument are manually operated. Thus, the operator can scan the channels, change the
volume or switch off the monitor without affecting the data acquisition process.
The control interface between the host computer and the CyberAmp does not carry the analog data,
but rather carries control instructions to the CyberAmp and status information to the computer. This
connection makes use of the extremely convenient RS-232 serial interface. With this well known
interface, it is easy to connect the CyberAmp to any host computer and its data acquisition system.
To further ease the interface task, the intelligent RS-232 circuitry in the CyberAmp auto matically
conforms to the baud rate of the host computer. There are no complicated switches or jumpers to set --
the CyberAmp simply works at the existing speed and parity of the RS-232 port of the host computer.
For greater convenience, the CyberAmp can be used with data acquisition software that contain
routines to control the CyberAmp. For example, most data acquisition software from Axon
Instruments (pCLAMP, AxoScope) is available with built-in CyberAmp support.
To deal with PC software that does not include CyberAmp support, the CD that accompanies the
CyberAmp provides several possible solutions. First is the Cyber Control for Windows program.
Next a PC-compatible program called CMD300 (short for "Command 300") enables every feature of
the CyberAmp to be set from the DOS command prompt. To use CMD300, shell to DOS from the
data acquisition program, invoke CMD300 with the command line parameters that change the
CyberAmp settings, then return to the data acquisition program. Another solution is the PC-
compatible program QUICK300 that presents the most commonly used features in a convenient
spreadsheet. Also, is a set of C and QuickBASIC language subroutines are included for use by
programmers wishing to add direct support of the CyberAmp into their data acquisition programs.
These software support libraries are not copyrighted, and can be used by owners of the CyberAmp
380 or by third-party vendors of data acquisition software.
Macintosh users should use the CyberControl program included on the CyberAmp software CD.
The basic operation of the CyberAmp 380 is fairly simple. However, the new user should at least read
the Functional Description chapter and the Transducers and Probes chapter to understand the
capabilities of the instrument.
A new CyberAmp 380 should be tested as described in the Functional Checkout chapter (page 11) to
verify that the instrument arrived safely.
- CyberAmp 380 1
- Declaration of Conformity 3
- IMPORTANT INFORMATION 5
- RENSEIGNMENTS IMPORTANTS 6
- WICHTIGE INFORMATIONEN 7
- INFORMACION IMPORTANTE 8
- Explanation of symbols 9
- Explication des symboles 9
- Explicación de símbolos 9
- SÉCURITÉ 10
- SICHERHEITS 10
- HINWEISE 10
- SEGURIDAD 10
- COPYRIGHT 11
- VERIFICATION 11
- TABLE OF CONTENTS 13
- INTRODUCTION 19
- Page 2 INTRODUCTION 20
- INTRODUCTION Page 3 21
- FUNCTIONAL DESCRIPTION 23
- General Features 26
- FUNCTIONAL CHECKOUT 29
- TYPICAL CONFIGURATIONS 33
- Supply Voltage 37
- Changing the Fuse 37
- Grounding and Hum 38
- Power-Supply Glitches 39
- Input Coupling 39
- Expansion 40
- Low-Pass Filter 41
- Amplitude Characteristics 42
- Sampling Rate 43
- 10-90% Rise Time 43
- AC Coupling and Autozeroing 44
- 3 dB frequency of 44
- Time Constant 46
- 100 1.6 46
- Saturation 47
- Notch Filter 48
- Overload Detection 49
- Audio Monitor 50
- External Input 51
- Electrode Test 52
- Strain Gauges 55
- Active Probes 56
- Common-Mode Rejection Ratio 57
- Troubleshooting 59
- TRANSDUCERS 61
- Page 44 TRANSDUCERS 62
- TRANSDUCERS Page 45 63
- EMG, EEG, ECG Recording 64
- Nerve Cuffs 65
- Metal Microelectrodes 65
- Page 48 TRANSDUCERS 66
- Pressure 67
- Acceleration 67
- Self Heating 68
- Isolation 68
- Insulation Techniques 68
- AI 400 SERIES SmartProbes 69
- Transducer Adapter 71
- Input Connector Color Scheme 72
- Recommended Input Coupling 73
- Connector 74
- Example Circuits 75
- Basic Thermistor Circuit 76
- Amplifier Probes 78
- Current Probes 79
- Photodiode Amplifier 79
- Linear Potentiometers 80
- Rotary Potentiometers 80
- Panel Switch 81
- Foot Switch 81
- CMD300 CONTROL SOFTWARE 83
- Command-Line Mode 85
- Interactive Mode 85
- Command-File Mode 86
- Command Reference 87
- CMD300 OVERLOAD 91
- CMD300 REPEAT OVERLOAD 94
- QUICK300 CONTROL SOFTWARE 97
- Command Line Options 100
- CyberControl SOFTWARE 101
- Starting CyberControl 102
- Overload Handling 105
- Keyboard Commands 105
- Communications Settings 107
- PC Menus 108
- Macintosh Menus 109
- PROGRAMMER'S GUIDE 112
- Libraries and Example Code 114
- > end of response 116
- AT3F5 24000 118
- 2 4 6 8 10 ... 28000 30000 118
- AT8R06000 121
- D5=-1234500 124
- Implementation Notes 125
- Support Routine Details 125
- Example Programs 129
- SPECIFICATIONS 135
- Page 118 SPECIFICATIONS 136
- Offset range: ±10 V 137
- Page 120 SPECIFICATIONS 138
- SPECIFICATIONS Page 121 139
- Page 122 SPECIFICATIONS 140
- REFERENCES 141
- ADJUSTMENT PROCEDURES 143
- Other Adjustments 144
- CIRCUIT DIAGRAMS Page 127 145
- SERIAL COMMUNICATIONS CABLES 147
- LIST OF FIGURES AND TABLES 149
- WARRANTY 151
- WARNING 153
- INDEX Page 137 155
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