Contents
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TABLE OF CONTENTS
Condensed Information
SAFETY
Guide to Operation
Front Panel
Calibration and Repair
Appendix A: Noise Sources and Cures
Appendix B: RS232
Appendix C: GPIB
Appendix D: Program Examples
LINE VOLTAGE SELECTION
LINE FUSE
LINE CORD
OPERATE WITH COVERS IN
PLACE
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General
Signal Channel
Reference Channel
Demodulator
Outputs & Interfaces
Front Panel Summary
Abridged Command List
Configuration Switches
Signal Inputs
Signal Filters
Sensitivity
Dynamic Reserve
Status
Diplay Select
Output
Expand
Offset
Time Constant
Noise
Reference and Trigger Level
Phase Controls
Power
Local and Remote
Defaults
AC Power
GPIB Connector
RS232 Connector
Signal Monitor Output
Preamp Connector
AMP CAL
VCO INPUT
VCO RANGE
FREQUENCY CAL
VCO
Communicating with the SR510
Command Syntax
Front Panel Status LED's
RS232 Echo and No Echo
Operation
Try-Outwith an ASCII Terminal
SR510 Command List
A {n}
auto offset
B {n}
bandpass
J {n1,n2,n3,n4}
end-of-record
K n
key press
L m {,n}
output
R {n}
input trigger
S {n}
T m {,n}
Status Byte
Errors
Reset
Trouble-ShootingInterface Problems
Common Hardware Problems include:
Common Software Problems include:
The SR510 with the RS232 Interface
Data Communications Equipment (DCE)
The SR510 with the GPIB
Interface
GPIB Capabilities
Serial Polls and Service Requests
GPIB with RS232 Echo Mode
The SR510 with BOTH Interfaces
The Lock-inTechnique
A Measurement Example
Understanding the Specifications
Shielding and Ground Loops
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SR510 Block Diagram
The Signal Channel
Reference Channel
Phase Sensitive Detector
DC Amplifier and System Gain
A Microprocessor Based Design
Introduction
Signal Amplifier
Current Amplifier
Bandpass Filter
Reference Oscillator
Demodulator and Low Pass Amplifier
Analog Output and Control
Expand
Front Panel
Microprocessor Control
RS232 Interface
GPIB Interface
Power Supplies
Internal Oscillator
Multiplier Adjustments
Replacing the Front-EndTransistors
Non-EssentialNoise Sources
Capacitive Coupling
Inductive Coupling
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CASE 1 - The Simplest Configuration
CASE 2 - RS232 with Control Lines
Baud Rate
Stop Bits
Parity
Final Tip
Voltage Levels
Bus Description
Appendix D:
Program Examples
Program Example 1:
IBM PC, Basic, via RS232
Program Example 2:
IBM PC, Microsoft Fortran v3.3, via RS232
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Program Example 3:
IBM PC, Microsoft C v3.0, via RS232
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Program Example 4: IBM PC,Microsoft Basic, via GPIB
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Program Example 5:
HP85 via GPIB
Documentation
Main Assembly PCB Parts List
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Internal Oscillator PCB Parts List
Miscellaneous Parts List
Front Panel Parts List