Fluke 2620A Manuals

Manuals and User Guides for Fluke 2620A. We have 2 Fluke 2620A manuals available for free PDF download: Manual, User Manual

Fluke 2620A Manual

Fluke 2620A Manual (310 pages)

Brand: Fluke | Category: Measuring Instruments | Size: 3.23 MB

Table of Contents

Table of Contents

7
List of Figures

15
- Introduction
  19
- Introduction and Specifications
  19
- Operating Instructions
  19
- Options and Accessories
  19
- Organization of the Service Manual
  20
- Conventions
  21
- Specifications
  23
Theory of Operation (2620A/2625A)

49
- Digital Kernel
  51
- Functional Block Description
  51
- Introduction
  51
- Main PCA Circuitry
  51
- Power Supply
  51
- Overall Functional Block Diagram
  53
- A/D Converter PCA
  54
- Analog Measurement Processor
  54
- Analog-To-Digital (A/D) Converter
  54
- Digital Inputs and Outputs
  54
- Inguard Microcontroller Circuitry
  54
- Input Protection Circuitry
  54
- Input Signal Conditioning
  54
- Serial Communication (Guard Crossing)
  54
- Channel Selection Circuitry
  55
- Channel Terminals
  55
- Detailed Circuit Description
  55
- Display PCA
  55
- IEEE-488 Option (-05)
  55
- Input Connector Assembly
  55
- Main PCA
  55
- Memory PCA (2625A Only)
  55
- Open Thermocouple Check Circuitry
  55
- Reference Junction Temperature
  55
- Power Supply Circuit Description
  56
- Digital Kernel
  58
- Digital I/O
  62
- Digital and Alarm Output Drivers
  63
- Digital Input Buffers
  63
- Digital Input Threshold
  63
- Digital Input Threshold 2-1
  63
- A/D Converter PCA
  64
- Analog Measurement Processor
  64
- External Trigger Input Circuits
  64
- Totalizer Input
  64
- Input Protection
  65
- Analog Simplified Schematic Diagram
  66
- Input Signal Conditioning
  68
- Ohms Simplified Schematic
  71
- AC Buffer Simplified Schematic
  72
- Passive and Active Filters
  73
- A/D Converter
  74
- A/D Converter Simplified Schematic
  74
- Channel Selection Circuitry
  75
- Inguard Microcontroller Circuitry
  75
- Input Connector PCA
  76
- Open Thermocouple Check
  76
- Display PCA
  77
- Front Panel Switches
  77
- Main PCA Connector
  77
- Beeper Drive Circuit
  78
- Display
  78
- Watchdog Timer and Reset Circuit
  78
- Command Byte Transfer Waveforms
  79
- Display Controller
  79
- Grid Control Signal Timing
  80
- Address Decoding
  81
- Grid-Anode Timing Relationships
  81
- Main PCA Connector
  81
- Memory PCA (2625A Only)
  81
- Page Register
  81
- Byte Counter
  82
- IEEE-488 Interface (Option -05)
  82
- Nonvolatile Memory
  82
A Theory of Operation (2635A)

83
- Theory of Operation (2635A)
  83
- 1. Introduction
  85
- 2. Functional Block Description
  85
- 3. Main PCA Circuitry
  85
- 4. Power Supply
  85
- 5. Digital Kernel
  85
- 10. Input Protection Circuitry
  88
- 11. Input Signal Conditioning
  88
- 12. Analog-To-Digital (A/D) Converter
  88
- 13. Inguard Microcontroller Circuitry
  88
- 6. Serial Communication (Guard Crossing)
  88
- 7. Digital Inputs and Outputs
  88
- 8. A/D Converter PCA
  88
- 9. Analog Measurement Processor
  88
- 14. Channel Selection Circuitry
  89
- 15. Open Thermocouple Check Circuitry
  89
- 17. 20 Channel Terminals
  89
- 18. Reference Junction Temperature
  89
- 21. Detailed Circuit Description
  89
- Display PCA
  89
- Input Connector Assembly
  89
- Main PCA
  89
- Memory Card Interface PCA
  89
- 23. Power Supply Circuit Description
  90
- 31. Digital Kernel
  92
- Digital I
  99
- 42. Digital I
  101
- 43. Digital Input Threshold
  101
- 44. Digital Input Buffers
  101
- 45. Digital and Alarm Output Drivers
  101
- 46. Totalizer Input
  101
- 47. External Trigger Input Circuits
  102
- 49. Analog Measurement Processor
  102
- A/D Converter PCA
  102
- Analog Measurement Processor
  102
- External Trigger Input Circuits
  102
- Input Signal Conditioning
  102
- Totalizer Input
  102
- 50. Input Protection
  106
- 51. Input Signal Conditioning
  107
- 57. Passive and Active Filters
  112
- 58. A/D Converter
  112
- A/D Converter
  112
- Passive and Active Filters
  112
- 59. Inguard Microcontroller Circuitry
  114
- 60. Channel Selection Circuitry
  114
- 61. Open Thermocouple Check
  114
- Channel Selection Circuitry
  114
- Inguard Microcontroller Circuitry
  114
- Open Thermocouple Check
  114
- 64. Main PCA Connector
  115
- Display PCA
  115
- Input Connector PCA
  115
- Main PCA Connector
  115
- 65. Front Panel Switches
  116
- 66. Display
  116
- 67. Beeper Drive Circuit
  116
- Beeper Drive Circuit
  116
- Display
  116
- Front Panel Switches
  116
- 68. Watchdog Timer and Reset Circuit
  117
- 69. Display Controller
  117
- 70. Memory Card Interface PCA
  119
- Memory Card Interface PCA
  119
- 71. Main PCA Connector
  120
- 72. Microprocessor Interface
  120
- 73. Memory Card Controller
  120
- Main PCA Connector
  120
- Microprocessor Interface
  120
- 74. PCMCIA Memory Card Connector
  121
General Maintenance

125
- General Maintenance
  127
- Introduction
  127
- Power Requirements
  127
- Required Equipment
  127
- Static Safe Handling
  127
- Warranty Repairs and Shipping
  127
- Cleaning
  128
- Servicing Surface-Mount Assemblies
  128
- Disassembly Procedures
  129
- Line Fuse Replacement
  129
- Replacing the Line Fuse
  129
- Remove Handle and Mounting Brackets
  130
- Remove the Display PCA
  130
- Remove the Front Panel Assembly
  130
- Remove the Instrument Case
  130
- Removing the Case
  131
- Removing the Handle and Handle Mounting Brackets
  132
- 2620A and 2625A Assembly Details
  133
- 2635A Assembly Details
  134
- Remove the IEEE-488 Option (2620A Only)
  135
- Remove the Memory Card I/F PCA (2635A Only)
  135
- Remove the Memory PCA (2625A Only)
  135
- Remove the A/D Converter PCA
  136
- Remove the Main PCA
  136
- Assembly Procedures
  137
- Disconnect Miscellaneous Chassis Components
  137
- Install Miscellaneous Chassis Components
  137
- Install the A/D Converter PCA
  137
- Install the IEEE-488 Option (2620A Only)
  138
- Install the Main PCA
  138
- Install the Memory PCA (2625A Only)
  138
- Assemble the Front Panel Assembly
  139
- Install the Front Panel Assembly
  139
- Install the Handle and Mounting Brackets
  139
- Install the Instrument Case
  139
- Install the Memory Card I/F PCA (2635A Only)
  139
Performance Testing and Calibration

141
- Introduction
  143
- Required Equipment
  143
- Accuracy Verification Test
  144
- Channel Integrity Test
  144
- Performance Tests
  144
- Thermocouple Measurement Range Accuracy Test
  146
- 4-Terminal Resistance Test
  147
- Input Module
  148
- Thermocouple Temperature Accuracy Test
  148
- Open Thermocouple Response Test
  151
- RTD Temperature Accuracy Test
  151
- RTD Temperature Accuracy Test (Using Decade Resistance Source)
  151
- RTD Temperature Accuracy Test (Using DIN/IEC 751)
  151
- RTD Temperature Accuracy Test (Using DIN/IEC 751)
  152
- Digital Input/Output Verification Tests
  153
- Digital Output Test
  153
- Digital Input Test
  154
- Totalizer Test
  154
- Totalizer Sensitivity Test
  155
- Dedicated Alarm Output Test
  156
- Dedicated Alarms Test
  157
- Calibration
  158
- External Trigger Input Test
  158
- External Trigger Test
  158
- Using Hydra Starter Calibration Software
  159
- Setup Procedure Using Starter
  160
- Using Hydra Starter Calibration Software
  160
- Calibration Procedure Using Starter
  161
- Calibration Procedure Using a Terminal
  162
- Setup Procedure Using a Terminal
  162
- Using a Terminal
  162
- Reference Junction Calibration
  164
- Concluding Calibration
  165
- Updating 2635A Data Bucket Embedded Instrument Firmware
  167
- Using the PC Compatible Firmware Loader Software
  168
- Default Instrument Firmware Download Procedure
  169
- Setup Procedure for Firmware Download
  169
- Using LD2635 Firmware Loader Directly
  169
- Using LD2635 Firmware Loader Directly
  170
Diagnostic Testing and Troubleshooting (2620A/2625A)

171
- Introduction
  173
- Servicing Surface-Mount Assemblies
  173
- Error Codes
  174
- General Troubleshooting Procedures
  176
- Test Point Locator, Main PCA (A1)
  177
- 5-Volt Switching Supply
  178
- Power Fail Detection
  178
- Power Supply Troubleshooting
  178
- Raw DC Supply
  178
- 5-Volt Switching Supply
  179
- Inverter
  179
- Inverter FET Drive Signals
  181
- Analog Troubleshooting
  182
- Test Points, A/D Converter PCA (A3, A3U9)
  185
- AC Volts Troubleshooting
  187
- DC Volts Troubleshooting
  187
- Integrator Output
  187
- Ohms Troubleshooting
  188
- Digital Kernel Troubleshooting
  189
- Microprocessor Timing
  190
- Digital and Alarm Output Troubleshooting
  191
- Digital Input Troubleshooting
  191
- Totalizer Troubleshooting
  191
- Test Points, Display PCA (A2)
  192
- Display Assembly Troubleshooting
  193
- Display Controller to Microprocessor Signals
  193
- Display Test Pattern #1
  193
- Variations in the Display
  195
- Calibration Failures
  196
- Calibration-Related Components
  196
- Introduction
  196
- Replacing the EEPROM (A1U1)
  198
- Retrieving Calibration Constants
  198
- IEEE-488 Interface PCA (A5) Troubleshooting
  199
- Memory PCA (A6) Troubleshooting
  199
- Power-Up Problems
  199
A Diagnostic Testing and Troubleshooting (2635A)

201
- 1. Introduction
  203
- Introduction
  203
- Servicing Surface-Mount Assemblies
  203
- Error Codes
  204
- 3. Error Codes
  205
- General Troubleshooting Procedures
  206
- 4. General Troubleshooting Procedures
  207
- 5-Volt Switching Supply
  208
- Power Fail Detection
  208
- Power Supply Troubleshooting
  208
- Raw DC Supply
  208
- Diagnostic Testing and Troubleshooting (2635A)
  209
- Inverter
  209
- 10. Analog Troubleshooting
  211
- 5. Test Points, A/D Converter PCA (A3U9) (2635A)
  215
- DC Volts Troubleshooting
  216
- AC Volts Troubleshooting
  217
- Ohms Troubleshooting
  217
- 14. Digital Kernel Troubleshooting
  218
- 14. Digital Kernel Troubleshooting
  219
- 15. Digital and Alarm Output Troubleshooting
  221
- 16. Digital Input Troubleshooting
  221
- 17. Totalizer Troubleshooting
  223
- 18. Display Assembly Troubleshooting
  223
- 18. Display Assembly Troubleshooting
  225
- Display Test Pattern #2
  225
- 19. Variations in the Display
  226
- 20. Calibration Failures
  227
- Calibration-Related Components
  227
- Introduction
  227
- Replacing the Flash Memory (A1U14 and A1U16)
  229
- Retrieving Calibration Constants
  229
- 25. Memory Card I/F PCA (A6) Troubleshooting
  230
- Failure to Detect Memory Card I/F PCA
  230
- Power-Up Problems
  230
- Failure to Detect Insertion of Memory Card
  231
- Failure to Illuminate the Battery Led
  231
- Failure to Power Card / Illuminate the Busy Led
  231
- Failure to Write to Memory Card
  232
- Write/Read Memory Card Test (Destructive)
  232
- List of Replaceable Parts
  235
- How to Obtain Parts
  237
- Introduction
  237
- Manual Status Information
  237
- Newer Instruments
  238
- Service Centers
  238
- 2620A/2625A Final Assembly
  239
- 2635A Final Assembly
  245
- 2620A/2625A A1 Main PCA
  254
- 2635A A1 Main PCA
  255
- 2625A A6 Memory PCA
  268
- 2635A A6 Memory Card I/F PCA
  271
Ieee-488 Option -05

273
- Functional Block Description
  275
- IEEE-488 PCA Detailed Circuit Description (2620A Only)
  275
- Introduction
  275
- Theory of Operation
  275
- IEEE-488 Controller
  276
- Main PCA Connector
  276
- General Maintenance
  277
- IEEE-488 Transceivers/Connector
  277
- Removing the IEEE-488 Option
  277
- Installing the IEEE-488 Option
  279
- Performance Testing
  279
- Communication Problems
  280
- Failure to Enter Remote
  280
- Failure to Handshake on IEEE-488 Bus
  280
- Failure to Select IEEE-488 Option
  280
- Power-Up Problems
  280
- Troubleshooting
  280
- Failure to Generate a Service Request (SRQ)
  281
- Failure to Generate an End or Identify (EOI)
  281
- Failure to Receive Multiple Character Commands
  281
- Failure to Transmit Query Responses
  281
- List of Replaceable Parts
  281
- Schematic Diagram
  281
- Figure Title Page
  283
- A1 Main PCA (2620A/2625A)
  285
- Schematic Diagrams
  285
- Interconnect Diagram
  286
- A1 Main PCA (2635A)
  290
- A2 Display PCA
  296
- A2 Display PCA
  297
- A3 A/D Converter PCA
  298
- A3 A/D Converter PCA
  299
- A4 Analog Input PCA
  302
- A4 Analog Input PCA
  303
- A6 Memory PCA (2625A)
  306
- A6 Memory Card I/F PCA (2635A)
  308

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Fluke 2620A User Manual

Fluke 2620A User Manual (197 pages)

Hydra Series II Data Acquisition Unit, Hydra Series II Data Logger

Brand: Fluke | Category: Measuring Instruments | Size: 0.92 MB

Table of Contents

Table of Contents
3
Getting Started
13
Introduction

19
- The Hydra Series II Data Acquisition Unit
  21
- The Hydra Series II Data Logger
  21
- Options and Accessories
  21
  - Applications Software
    21
  - IEEE-488 Interface Assembly
    21
  - Connector Set (2620A-100)
    21
- Hydra Features
  22
  - Accessories
    23
  - Where to Go from here
    23
Overview

25
- Introduction
  27
- Setting up the Instrument
  27
Chapter 2

27
- Unpacking and Inspecting the Instrument
  27
- Adjusting the Handle
  27
- Adjusting Handle
  27
  - Line Power
    28
  - Front/Rear Panel Features
    28
- Front Panel
  29
  - Left Display
    30
  - Right Display
    30
- Annunciators
  30
- Display Annunciators
  31
- Rear View
  32
  - Input Channels
    33
  - Operating Modes
    33
  - Turning the Instrument on
    33
  - Front Panel Display
    34
  - Reading the Display
    34
    
    Left Display
    34
    
    Right Display
    34
    
    Specific Annunciators
    34
  - Front Panel Buttons
    35
    
    Selecting a Channel
    35
    
    Using the Buttons
    35
- Front Panel Pushbuttons
  35
  - Setting up a Channel
    36
  - Setting Alarm Limits and MX+B Scaling Values
    38
    
    Alarm Limits
    38
    
    MX+B Scaling
    39
  - Setting the Scan Interval
    39
  - Using the Monitor Function
    40
  - Using the Scan Function
    40
  - Reviewing Channel Data
    40
  - Viewing the Totalizer Count
    41
  - Using External DC Power
    41
- Review Array
  41
  - Using the Rack Mount Kit
    42
Operating the Instrument from the Front Panel

43
Chapter 3

45
- Introduction
  45
- Operating Modes
  45
- Configuration Mode
  45
- Configuration Reset Settings
  47
- DC Voltage, AC Voltage
  48
- Resistance
  49
- Frequency
  49
- Thermocouple Temperature
  50
  - Setting Alarms
    51
    
    Alarm Limits
    51
- RTD Temperature
  51
  - Alarm Indications
    52
- Alarm Selection
  52
  - Resetting Alarm Conditions
    53
  - Using the Digital I/O Lines
    53
  - MX+B Scaling
    54
- Initial Alarm Assignments, Digital I/O Lines 4 through 7
  54
  - Instrument Configuration
    56
    
    Entering and Changing Numeric Values
    56
- MX+B Selection
  56
  - Selecting Scan Interval
    57
  - Selecting the Measurement Rate
    57
  - Triggering
    58
  - External Triggering
    58
  - Changing the Temperature Unit
    58
- Measurement Rate Selection
  58
- Trigger Type Selection
  58
  - Setting Date and Time of Day
    59
  - Measurement Connections
    59
- Date/Time Selection
  59
  - DC Volts, AC Volts, Frequency, and Thermocouples
    60
- Input Module Connections
  61
  - Resistance and RTD
    62
- Thermocouple Ranges
  62
- Terminal and 4-Terminal Connections
  63
  - Totalizing
    64
    
    Connections
    64
    
    General
    64
  - Review Array
    64
  - List Button Functions
    65
- Review Array
  65
- List Button Operation
  66
  - Autoprint
    67
  - Memory Storage
    67
  - Front Panel Lock out Conditions
    68
    
    Front Panel Monitor Only Function
    68
    
    Front Panel Review Only Function
    68
- Autoprint/Memory Storage Selection
  68
- Clearing Memory Storage
  68
  - Computer Interface-Initiated Lockouts
    69
  - REM Annunciator
    69
  - Calibration
    69
- REM Annunciation
  69
Using the Computer Interface

71
- Introduction
  73
Chapter 4

73
Additional Considerations

117
Chapter 5

119
- Introduction
  119
- Measurement Rate
  119
- Advanced Trigger Mechanisms
  119
- External Trigger Timing
  121
- T and 4T-Connections
  123
  - True RMS Measurements
    124
    
    Effects of Internal Noise in AC Measurements
    124
- Ohms Test Voltage
  124
  - Waveform Comparison (True RMS Vs Average Responding)
    124
  - Making Mixed Measurements
    125
- Comparison of Common Waveforms
  126
  - Using Shielded Wiring
    127
    
    Alternate Suggestions
    127
    
    General Rule
    127
    
    Isolated and Shielded Sensor Configuration
    127
    
    Non-Isolated Sensor Configuration
    127
    
    In more Detail
    128
Maintenance

129
Chapter 6

131
- Introduction
  131
- Cleaning
  131
- Line Fuse
  131
- Self-Test Diagnostics and Error Codes
  131
- Performance Tests
  132
- Replacing the Line Fuse
  132
- Power-Up Error Codes
  133
- Recommended Test Equipment
  134
  - Accuracy Verification Test
    135
  - Channel Integrity Test
    135
- Performance Tests (Voltage, Resistance, and Frequency)
  136
- Terminal Connections to 5700A
  140
  - Open Thermocouple Response Test
    141
- Performance Tests for Thermocouple Temperature Function (IPTS-68/ITS-90)
  141
- Terminal Connections to Decade Resistance Box
  141
  - RTD Temperature Accuracy Test
    142
    
    Performance Tests for RTD Temperature Function (Resistance) (DIN/IEC 751 Amendment 1) (IPTS-68)
    142
    
    RTD Temperature Accuracy Test (Using Decade Resistance Source)
    142
    
    Digital Input/Output Verification Tests
    143
    
    Performance Tests for RTD Temperature Function (DIN/IEC 751 Amendment 1 IPTS-68)
    143
    
    RTD Temperature Accuracy Test (Using DIN/IEC 751)
    143
    
    Digital Input Test
    144
    
    Digital Output Test
    144
    
    Totalizer Test
    145
- Digital Input Values
  145
  - Totalizer Sensitivity Test
    146
  - Dedicated Alarm Output Test
    147
- Dedicated Alarms Output Test
  148
  - External Trigger Input Test
    149
  - Calibration
    149
  - External Trigger Test
    149
  - Variations in the Display
    150
  - Service
    150
Appendices

151
- A Specifications
  153
Appendix

153
- Specifications
  153
- Digital Inputs
  164
- ASCII & IEEE-488 Bus Codes
  169
- B ASCII & IEEE-488 Bus Codes
  169
- C IEEE-488.2 Devise Documentation Requirements
  171
- IEEE-488.2 Devise Documentation Requirements
  171
- Implementation of Ieee Standard
  171
- D Making Mixed Measurements
  177
- Making Mixed Measurements
  177
- Binary Upload of Logged Data (LOG_BIN?) (2625A Only
  181
- E Binary Upload of Logged Data (LOG_BIN?) (2625A Only
  181
- E-1. ASCII String Decoding
  182
- E-1. Floating Point Format
  184
- E-2. Floating Point Conversion
  185
- E-3. Example
  186
  - RS-232 Cabling
    187
    
    F RS-232 Cabling
    187
    
    F-1. Summary of RS-232 Connections
    188
    
    F-2. Hydra (DB-9) to PC (DB-9) RS-232 Connection (Generic)
    189
    
    F-3. Hydra (DB-9) to PC (DB-25) RS-232 Connection
    190
    
    F-4. Hydra (DB-9) to Modem (DB-25) RS-232 Connection
    191
    
    F-5. Hydra (DB-9) to Printer (DB-25) RS-232 Connection
    192
    
    F-6. RS-232 DB9 and DB-25 Connectors
    193

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