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Multiplexer
7014
Keithley 7014 Manuals
Manuals and User Guides for Keithley 7014. We have
1
Keithley 7014 manual available for free PDF download: Manual
Keithley 7014 Manual (106 pages)
39-Channel Thermocouple/ General Purpose Multiplexer Card
Brand:
Keithley
| Category:
Multiplexer
| Size: 4 MB
Table of Contents
Table of Contents
9
General Information
15
Introduction
15
Features
15
Warranty Information
16
Manual Addenda
16
Safety Symbols and Terms
16
Specifications
16
Unpacking and Inspection
16
Inspection for Damage
16
Shipping Contents
16
Instruction Manual
17
Repacking for Shipment
17
Optional Accessories
17
Multiplexing Basics
19
Introduction
19
Thermocouple Measurements
19
Definitions
19
Theory
19
Measurement Procedure
20
Measuring Example
20
Basic Multiplexer Configurations
21
Multiplexer Bank-To-Bank Jumpers
22
Backplane Jumpers
24
Typical Multiplexer Switching Schemes
25
Thermocouple Switching
25
Single-Ended Switching
26
Differential Switching
26
Sensing
27
SMU Connections
27
Multiplexer Expansion
28
Two-Card Switching Systems
28
Mainframe Multiplexer Expansion
29
Card Connections & Installation
31
Introduction
31
Handling Precautions
31
Connections
31
Bank-To-Bank Jumpers
32
Backplane Jumpers
34
Screw Terminal Connector Card
34
Typical Connection Schemes
36
3.4.1 Single Card System
36
Two-Card System
39
Two-Mainframe System
39
Model 7014 Installation and Removal
42
Operation
45
Introduction
45
Power Limits
45
Mainframe Control of Multiplexer Card
45
4.3.1 Channel Assignments
45
Front Panel Control
47
IEEE-488 Bus Operation
48
Multiplexer Switching Examples
49
Resistor Testing
49
Transistor Testing
54
Resistor Temperature Coefficient Testing
56
Measurement Considerations
57
Thermocouple Measurement Error Sources
57
Path Isolation
58
Magnetic Fields
59
Radio Frequency Interference
59
Ground Loops
59
Keeping Connectors Clean
60
AC Frequency Response
60
Service Information
61
Introduction
61
Handling and Cleaning Precautions
61
Performance Verification
61
Environmental Conditions
62
Recommended Equipment
62
Reference Junction Test
63
Channel Resistance Tests
65
Offset Current Tests
66
Contact Potential Tests
68
Calibration
75
Calibration with Thermistor Probe
76
Calibration with Thermocouple Wire
77
Special Handling
79
Of Static-Sensitive Devices
79
Block Diagram
79
ID Data Cncults
80
Relay Control
81
Reference Junction
81
Power-On Safeguard
81
Troubleshooting
81
Troubleshooting Equipment
81
Troubleshooting Access
81
Troubleshooting Procedure
83
Replaceable Parts
85
Introduction
85
Parts Lists
85
Ordering Information
85
Factory Service
85
Component Layouts and Schematic Diagrams
85
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