1290-DReamwood Avenue Sunnyvale, CA 94089 U.S.A
MODEL SR530
LOCK-INAMPLIFIER
Copyright 1997, Stanford Research Systems, Inc
Page
SR530 Block Diagram
Table of Contents
Command List
Condensed Information
Appendix A Noise Sources and Cures
Circuit Description
Calibration and Repair
Appendix B RS232
LINE FUSE
FURNISHED ACCESSORIES
LINE VOLTAGE SELECTION
LINE CORD
Page
General
SR530 Specification Summary
Signal Channel
Reference Channel
Demodulator
Outputs & Interfaces
Front Panel Summary
Phase Controls
Abridged Command List
SW2 RS232 Mode Switches
Configuration Switches
SW1 GPIB Mode Switches
Status Byte Definition
SR510 Guide to Operation Front Panel
Signal Inputs
Signal Filters
Sensitivity
Display Select
Dynamic Reserve
Status
Channel 1 Display
Rel Channel
R Output
Output Channel
Offset Channel
Channel 2 Display
Expand Channel
X RCOSØ Output
Ø Output
Rel Channel
Auto Phase
Output Channel
Offset Channel
Trigger Level
Y RSINØ Output
Reference Input
Expand Channel
Reference Display
Phase Controls
Reference Mode
Time Constant
Defaults
Power
Local and Remote
RS232 Connector
AC Power
GPIB Connector
Signal Monitor Output
There are four ways to set the frequency
Communicating with the SR530
Command Syntax
SR530 Guide to Programming
Front Panel Status LEDs
RS232 Echo and No Echo Operation
Try-Outwith an ASCII Terminal
AX AY AR AP
SR530 Command List
E m ,n
L m ,n
J n1,n2,n3,n4
OX n ,v OY n ,v OR n ,v
T m ,n
Q1 Q2 QX QY
U m ,n
Status Byte
Errors
X n ,v
Common Hardware Problems include
Reset
Trouble-ShootingInterface Problems
Common Software Problems include
The SR530 with the GPIB Interface
Wait Command
The SR530 with the RS232 Interface
Data Communications Equipment DCE
GPIB with RS232 Echo Mode
Serial Polls and Service Requests
The SR530 with BOTH Interfaces
The Lock-inTechnique
A Measurement Example
Understanding the Specifications
Shielding and Ground Loops
Quasi-DifferentialConnection
Page
SR530 Block Diagram
Reference Channel
The Signal Channel
Phase Sensitive Detectors
DC Amplifiers and System Gain
Introduction
Signal Amplifier
Circuit Description
Current Amplifier
Reference Oscillator
Demodulator and Low Pass Amplifier
D/As
Analog Output and Control
A/Ds
Expand
GPIB Interface
Power Supplies
RS232 Interface
Internal Oscillator
Calibration and Repair
Multiplier Adjustments
Amplifier and Filter Adjustments
CMRR
Notch Filters
1Remove the AC power cord from the unit
Replacing the Front-EndTransistors
Appendix A Noise Sources and Cures
Non-EssentialNoise Sources
Capacitive Noise Coupling
Resistive Coupling
Baud Rate
CASE 1 - The Simplest Configuration
Appendix B Introduction to the RS232
CASE 2 - RS232 with Control Lines
Voltage Levels
Stop Bits
Parity
Final Tip
Appendix C Introduction to the GPIB
Bus Description
Appendix D Program Examples
Program Example IBM PC, Basic, via RS232
Program Example
IBM PC, Microsoft Fortran v3.3, via RS232
call
IBM PC, Microsoft C v3.0, via RS232
Program Example
txstr ″q2$″ /* read channel 2 output
120′
390′
40DISP ″CH1 = ″ 50OUTPUT 716 ″Q2″
Program Example HP85 via GPIB
10 x=0 20 OUTPUT 716 ″Q″ 30 ENTER
60 ENTER 716 70DISP ″CH2 = ″ 80X = X +
Documentation
SRS part#
SR530 COMPONENT PARTS LIST
Oscillator Board Parts List
VALUE
SRS part#
Main Board Parts List
SR530 COMPONENT PARTS LIST
VALUE
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
SRS part#
Front Panel Board Parts List
SR530 COMPONENT PARTS LIST
VALUE
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
SRS part#
Quad Board Parts List
SR530 COMPONENT PARTS LIST
VALUE
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
VALUE
SR530 COMPONENT PARTS LIST
SRS part#
DESCRIPTION
SRS part#
Miscellaneous Parts List
SR530 COMPONENT PARTS LIST
VALUE
SR530 COMPONENT PARTS LIST