Fluke 8842a manuali

Fluke 8842a Manuale Utente (269 pagine)

Marchio: Fluke | Categoria: no | Dimensione: 13.23 MB |

Inglese

Indice

Instruction Manual

1

Table of Contents

3

List of Tables

9

List of Figures

11

Contents

13

Chapter 1

15

1-1. INTRODUCTION

16

1-3. OPTIONS AND ACCESSORIES

16

1-4. SPECIFICATIONS

17

SPECIFICATIONS

19

Operating Instructions

26

2-1. INTRODUCTION

27

2-2. INSTALLATION

27

2-5. Adjusting the Handle

28

2-6. Rack Mounting Kits

28

2-7. OPERATING FEATURES

29

OPERATING FEATURES

30

Function

31

2-10. Display Features

33

2-11. Error Messages

33

2-12. Overrange Indication

35

2-13. Diagnostic Self-Tests

35

2-14. Ranging

35

2-15. AUTORANGE

35

2-16. MANUAL RANGE

36

2-17. Triggering

36

2-19. EXTERNAL TRIGGER MODE

36

2-24. MAKING MEASUREMENTS

38

2-29. Offset Measurements

39

2-30. EXTERNAL CLEANING

40

Remote Programming

42

3-1. INTRODUCTION

44

3-2. CAPABILITIES

44

3-3. BUS SET-UP PROCEDURE

44

3-5. A NOTE ABOUT EXAMPLES

47

B1 Offset On

48

PUT COMMAND FORMAT

49

N <value> P0

49

3-7. Bn (Offset Commands)

50

3-9. Dn (Display Commands)

50

3-10. Fn (Function Commands)

51

3-11. Get Commands

51

gain calibration

52

3-13. G1 (Get SRQ Mask)

53

DEVICE-DEPENDENT COMMAND SET

54

3-17. G5 (Get IAB Status)

55

3-18. G6 (Get YW Status)

55

3-19. G7 (Get Error Status)

55

3-22. Put Commands

56

3-24. P1 (Put SRQ Mask)

57

3-27. Rn (Range Commands)

58

3-32. Yn (Suffix Commands)

60

3-33. Z0 (Self-Test Command)

60

3-36. INPUT SYNTAX

61

3-37. Definitions

62

3-38. Input Processing

62

200 PRINT @3, "F4"

64

300 INPUT @3, A

64

200 INPUT @3, A

65

300 PRINT @3, "F4"

65

200 INPUT @3, A

65

3-42. Types of Output Data

66

3-44. MEASUREMENT DATA

66

3-45. OVERRANGE INDICATION

67

3-46. ERROR MESSAGES

67

3-47. Status Data

67

3-48. Output Priority

67

3-49. SERVICE REQUESTS

68

3-51. The SRQ Mask

69

3-52. INTERFACE MESSAGES

70

3-56. TALK-ONLY MODE

71

3-57. REMOTE CALIBRATION

72

3-58. TIMING CONSIDERATIONS

72

3-59. IMMEDIATE MODE COMMANDS

72

3-60. EXAMPLE PROGRAMS

73

EXAMPLE PROGRAMS

74

(interface clear)

91

4-1. INTRODUCTION

93

4-2. DC VOLTAGE MEASUREMENT

93

DC VOLTAGE MEASUREMENT

94

4-5. RESISTANCE MEASUREMENT

95

4-8. 4-Wire Ohms

96

4-10. TESTING DIODES

98

4-13. DC CURRENT MEASUREMENT

99

Measurement Tutorial

100

REDUCING THERMAL VOLTAGES

100

4-16. True RMS Measurement

101

4-17. Waveform Comparison

101

4-18. Crest Factor

103

4-21. Bandwidth

104

4-22. Zero-Input VAC Error

104

MEASUREMENTS

106

Theory of Operation

108

5-1. INTRODUCTION

110

5-4. DC SCALING

111

DC SCALING

112

5-5. VDC Scaling

113

5-6. VDC Protection

114

5-7. mA DC Scaling

114

5-8. Analog Filter

114

5-9. TRACK/HOLD CIRCUIT

115

TRACK/HOLD CIRCUIT

116

5-10. Track Configuration

117

5-11. Settling Configuration

118

5-12. Hold Configuration

118

5-15. OHMS CURRENT SOURCE

119

5-16. OHMS PROTECTION

120

5-17. OHMS FUNCTIONS

120

5-20. A/D CONVERTER

122

5-21. Timing/Data Control

124

5-22. Precision DAC

124

5-25. DISPLAY

125

5-26. KEYBOARD

126

5-27. DIGITAL CONTROLLER

126

5-28. In-Guard Microcomputer

128

5-31. Calibration Correction

130

5-35. GUARD CROSSING

131

5-36. POWER SUPPLY

132

5-38. Out-Guard Microcomputer

133

5-39. Guard Crossing

133

5-41. Signal Conditioning

134

5-44. VAC Scaling

134

5-45. mA AC Scaling

135

A Message From

136

PORTIONS REPRINTED

137

Maintenance

138

6-1. INTRODUCTION

140

6-2. PERFORMANCE TEST

141

local control

142

PERFORMANCE TEST

144

6-6. Resistance Test

145

2 = 4 ½ digit counts

146

6-9. CALIBRATION

147

6-11. INITIAL PROCEDURE

148

• Autoranging

149

CALIBRATION

150

6-18. VERIFYING CALIBRATION

154

6-20. TOLERANCE CHECK

155

6-23. Remote Calibration

157

6-24. TIMING CONSIDERATIONS

160

6-25. REMOTE ERASURE

161

6-27. DISASSEMBLY PROCEDURE

162

6-28. Case Removal

163

DISASSEMBLY PROCEDURE

164

6-31. Main PCA Removal

167

6-33. REASSEMBLY PROCEDURE

169

REASSEMBLY PROCEDURE

170

05 Only)

173

6-36. TROUBLESHOOTING

173

TROUBLESHOOTING

174

6-38. Diagnostic Self-Tests

178

6-39. Self-Test Descriptions

179

6-48. DISPLAY SYSTEM

185

6-59. ANALOG CONTROL SIGNALS

188

00000 11111 000000 000000 0 1

191

6-69. SERVICE POSITION

201

6-70. DIAGNOSTIC PROGRAM

201

6-72. SERVICE POSITION

203

6-73. MAJOR PROBLEMS

204

6-74. MORE OBSCURE PROBLEMS

206

6-76. INTERNAL CLEANING

207

INTERNAL CLEANING

208

List of Replaceable Parts

210

7-1. INTRODUCTION

212

7-2. HOW TO OBTAIN PARTS

212

7-4. NEWER INSTRUMENTS

213

7-5. SERVICE CENTERS

213

SERVICE CENTERS

214

Options and Accessories

230

8-1. INTRODUCTION

232

8-2. ACCESSORIES

233

8-10. Current Shunt (80J-10)

234

Option –05 IEEE-488 Interface

236

805-3. EXTERNAL CONTROLS

238

805-4. INSTALLATION

238

805-1. INTRODUCTION

238

805-2. CAPABILITIES

238

805-6. MAINTENANCE

239

LIST OF REPLACEABLE PARTS

240

Option –09 True RMS AC

244

809-1. INTRODUCTION

246

809-2. INSTALLATION

246

809-3. OPERATING INSTRUCTIONS

247

809-4. MAINTENANCE

247

Schematic Diagrams

252

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