Tektronix KEITHLEY 2182 Manuals

Manuals and User Guides for Tektronix KEITHLEY 2182. We have 1 Tektronix KEITHLEY 2182 manual available for free PDF download: Service Manual

Tektronix KEITHLEY 2182 Service Manual (89 pages)

Nanovoltmeter

Brand: Tektronix | Category: Measuring Instruments | Size: 5 MB

Safety Precautions
4
Table of Contents
6
In this Section
10
Welcome
10
Introduction
10
Introduction to this Manual
11
Extended Warranty
11
Contact Information
11
General Ratings
11
Performance Verification
12
Introduction
12
Verification Test Requirements
13
Environmental Conditions
13
Warmup Period
13
Line Power
13
Recommended Verification Equipment
14
Verification Reading Limits
14
Example Limits Calculation
15
Restoring Factory Defaults
15
Autocalibration (ACAL)
16
Performing the Verification Test Procedures
16
Test Considerations
17
Voltage Measurement Accuracy
17
Temperature Measurement Accuracy
20
Analog Output Accuracy
21
Calibration
23
Introduction
23
Environmental Conditions
24
Warmup Period
24
Line Power
24
Calibration Considerations
24
Calibration Cycle
25
Calibration Menu
25
Calibration Dates
25
Calibration Count
26
Calibration Temperature
26
Calibration Code
26
Front-Panel Code
26
Remote Calibration Unlock
27
Resetting the Calibration Code
27
Calibration Errors
27
Front-Panel Error Reporting
27
Remote Error Reporting
28
Aborting Calibration
28
Normal Calibration
28
Recommended Calibration Equipment
28
Front Panel Calibration
29
Preparing the 2182A for Calibration
29
Front Panel Short and Open Calibration
29
DC Volts Calibration
30
Setting Dates and Saving Calibration
32
Remote Calibration
32
Preparing the 2182A for Calibration
33
Short and Open Calibration
33
DC Volts Calibration
34
Programming Calibration Dates
35
Saving Calibration Constants
35
Locking out Calibration
35
Factory Calibration
36
Recommended Test Equipment
36
Remote Factory Calibration
36
Preparing the 2182A for Factory Calibration
37
Precalibration
37
Short and Open Calibration
38
DC Volts Calibration
39
Analog Output Calibration
40
Programming Calibration Dates
40
Saving Calibration Constants
41
Locking out Calibration
41
In this Section
42
Introduction
42
Line Fuse Replacement
42
Maintenance
42
Line Voltage Selection
44
Troubleshooting
45
Repair Considerations
46
Power-On Self-Test
46
Front-Panel Tests
46
KEY Test
47
DISP Test
47
Principles of Operation
48
Power Supply
48
Display Board
49
Microcontroller
50
Display
50
Key Matrix
50
Digital Circuitry
50
Microprocessor
50
Memory Circuits
51
RS-232 Interface
51
IEEE-488 Interface
51
Trigger Circuits
51
Analog Circuitry
52
Input Signal Conditioning
53
Multiplexer and Gain Amplifier
53
Troubleshooting
54
Display Board Checks
54
Power Supply Checks
55
Digital Circuit Checks
55
Analog Circuit Checks
56
Analog Signal Switching States
57
No Comm Link Error
58
Factory Service
58
In this Section
59
Handling and Cleaning
59
Handling PC Boards
59
Disassembly
59
Solder Repairs
60
Static-Sensitive Devices
60
Assembly Drawings
61
Disassembly
61
Case Cover Removal
61
Motherboard Removal
62
Front-Panel Disassembly
62
Main CPU Firmware Replacement
63
Changing Trigger Link Lines
64
Removing Power Components
65
Power Transformer Removal
65
Power Module Removal
65
Instrument Reassembly
66
Power Module Connections
66
Board Installation
66
Calibration Reference
72
Introduction
72
Command Summary
73
Default Calibration Constants and Tolerances
73
General Calibration Commands
75
Calibration:protected:code
75
Calibration:protected:count
76
Calibration:protected:lock
76
Calibration:protected:save
77
Calibration:protected:date
78
Calibration:protected:ndue
79
Calibration:protected:data
79
Calibration Step Commands
80
Calibrate:protected:DC:step<N
80
Precalibration Commands
81
Calibrate:protected:pcal:step<N
81
Calibrate:protected:pcal:data
82
Detecting Calibration Errors
82
Reading the Error Queue
82
Error Summary
83
Status Byte EAV (Error Available) Bit
83
Generating an SRQ on Error
84
Detecting Calibration Step Completion
84
Using the *OPC Command
84
Calibration Program
85
Computer Hardware Requirements
85
Software Requirements
85
Calibration Equipment
86
General Program Instructions
86
Calibration Program
87

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