SRS Labs SR850 manuals

Srs labs SR850 User Manual (290 pages)

Brand: Srs-labs | Category: Hardware | Size: 0.92 MB |

English

Table of contents

MODEL SR850

1

TABLE OF CONTENTS

3

Table of Contents

4

SR850 DSP LOCK-IN AMPLIFIER

7

SPECIFICATIONS

7

COMMAND LIST

9

SR850 DSP Lock-In Amplifier

10

STATUS BYTE DEFINITIONS

12

GETTING STARTED

13

YOUR FIRST MEASUREMENTS

13

Getting Started

14

THE BASIC LOCK-IN

15

The Basic Lock-in

16

DISPLAYS and TRACES

19

Displays and Traces

20

OUTPUTS, OFFSETS and EXPANDS

25

Outputs, Offsets and Expands

26

SCANS and SWEEPS

29

Scans and Sweeps

30

USING THE DISK DRIVE

35

The Disk Drive

36

AUX OUTPUTS and INPUTS

43

Aux Outputs and Inputs

44

TRACE MATH

47

Trace Math

48

SR850 BASICS

55

WHAT IS A LOCK-IN AMPLIFIER?

55

SR850 Basics

56

WHAT DOES A LOCK-IN MEASURE?

57

THE FUNCTIONAL SR850

59

REFERENCE CHANNEL

61

TIME CONSTANTS and DC GAIN

65

DC OUTPUTS and SCALING

67

DYNAMIC RESERVE

71

INPUT CONNECTIONS

75

EXTERNAL NOISE SOURCES

79

NOISE MEASUREMENTS

81

Front Panel

84

X = 9.7284 mV

87

Y =-1.2050 mV

87

Screen Display

100

SIGNAL IN

101

ADDITIONAL MENUS

102

ENTRY KEYS

102

[CURSOR]

103

[ACTIVE DISPLAY]

103

[PRINT] TO A DISK FILE

105

[PRINT] TO A PRINTER

105

REAR PANEL

107

REAR PANEL BNC CONNECTORS

108

AUX IN 1-4 (A/D Inputs)

108

AUX OUT 1-4 (D/A Outputs)

108

MONITOR OUT

108

Rear Panel

109

USING SRS PREAMPS

109

SR850 MENUS

111

SR850 Menus

112

DEFAULT SETTINGS

112

REFERENCE AND PHASE MENU

113

Reference and Phase Menu

114

INPUT AND FILTERS MENU

117

Input and Filters Menu

118

GAIN AND TIME CONSTANT MENU

119

Gain and Time Constant Menu

120

OUTPUT AND OFFSET MENU

125

Output and Offset Menu

126

TRACE AND SCAN MENU

127

Trace and Scan Menu

128

DISPLAY AND SCALE MENU

131

Display and Scale Menu

132

AUX OUTPUTS MENU

135

Aux Outputs Menu

136

CURSOR SETUP MENU

139

Cursor Setup Menu

140

EDIT MARK MENU

141

Edit Mark Menu

142

MATH MENU

143

Math Menu

144

DISK MENU

151

Disk Menu

152

SYSTEM SETUP MENU

159

System Setup Menu

160

REMOTE PROGRAMMING

177

Remote Programming

178

DETAILED COMMAND LIST

179

REFERENCE and PHASE COMMANDS

180

INPUT and FILTER COMMANDS

182

OUTPUT and OFFSET COMMANDS

185

TRACE and SCAN COMMANDS

186

DISPLAY and SCALE COMMANDS

187

CURSOR COMMANDS

189

MARK COMMANDS

190

AUX INPUT and OUTPUT COMMANDS

191

MATH COMMANDS

192

SETUP COMMANDS

195

PRINT and PLOT COMMANDS

197

DATA TRANSFER COMMANDS

199

INTERFACE COMMANDS

204

STATUS REPORTING COMMANDS

205

EXAMPLE PROGRAM 1

209

EXAMPLE PROGRAM 2

215

PERFORMANCE TESTS

219

Performance Tests

220

General Installation

220

1. Self Tests

223

2. DC Offset

225

3. Common Mode Rejection

227

Procedure

229

5. Amplitude Linearity

231

6. Frequency Accuracy

233

7. Phase Accuracy

235

9. DC Outputs and Inputs

239

10. Input Noise

241

SR850 SERVICE

247

SR850 Service

248

CIRCUIT DESCRIPTION

255

Circuit Description

256

CPU BOARD

257

POWER SUPPLY BOARD

259

DSP LOGIC BOARD

261

ANALOG INPUT BOARD

263

PARTS LIST

265

Parts List

266

SRS Labs devices