Keithley 197 Portable Multimeter Manuals

Manuals and User Guides for Keithley 197 Portable Multimeter. We have 2 Keithley 197 Portable Multimeter manuals available for free PDF download: Instruction Manual, Instructions Manual

Keithley 197 Instruction Manual (75 pages)

Autoranging Microvolt DMM

Brand: Keithley | Category: Multimeter | Size: 9 MB

Table of Contents
4
Introduction
10
- Features
  10
Safety Symbols and Terms
10
Section 1-General Information
10
Warranty Information
10
- Manualaddenda
  10
Initial Operation
11
Specifications
11
- Unpacking and Inspection
  11
Using the Model 197 Manual
11
Accessories
12
- Section 2-Bench Operation
  13
High Energy Circuit Safety Precautions
13
Introduction
13
Preparation for Use
13
- Linepower
  13
- Batterypackpower
  14
- Battery Charging
  14
Front Panel Familiarization
14
- Display
  14
- Front Panel Controls
  15
- Input Terminals
  15
- Current Fuse Replace
  15
Basic Bench Measurements
16
- Powerup
  17
- Relative Mode
  17
Errormessages
16
Operating Conditions
16
- Environmental Conditions
  16
- Maximum Allowable Inputs
  16
- Warmup
  16
Model 197 Maximum Allowable Inputs
17
- Ent
  18
- TRMS AC Voltage Measurements
  18
DC Voltage Measurements
18
- Microvolt Measurement Considerations
  19
TRMS AC Voltage Measurements
19
- Resistance Measurements
  20
- Current Measurements (DC or TRMS AC)
  21
Four Terminal Resistance Measurement
21
Four Terminal Zeroing
21
- AC Plus DC Measurements
  22
- Db Measurements
  22
Two Terminal Resistance Measurement
21
Current Measurements between 2
22
Current Measurements up to 2000Ma
22
- Db Measurements Considerations and Applicatio
  24
Levels for Other Reference Impedances
24
- MIN/MAX and 100 Point Data Logger Operatio
  25
- Diode Test
  25
TRMS Considerations
25
- AC Voltage Offset
  26
- TRMS Measurement Comparison
  26
- Crestfactor
  26
- Extended Frequency Response
  26
Comparison of Average and TRMS Meter Readings
28
- Section 3- Performance Verification
  29
Initial Conditions
29
Recommended Test Equipment
29
Verification Procedure
29
- DC Voltage Accuracy Check
  30
- AC Voltage Accuracy Check
  30
Connections for ACV Verification
30
- Resistance Accuracy Check
  31
Connections for DCV Verification
30
Limits for DC Voltage Verification
30
Limits for AC Voltage Verification
31
Limits for Resistance Verification
31
- DC Current Accuracy Check
  32
Limits for DC Current Verification
32
- AC Current Accuracy Check
  33
Connections for DC Current Verification (2000Ma to 20A)
33
Connections for DC Current Verification (200Pa to 2000Ma)
33
Limits for AC Current Verification
34
- Section 4-Theory of Operation
  35
Analog Circuitry
35
- Multiplexer
  35
- Input Buffer Amplifier
  35
Introduction
35
Overall Functional Description
35
JFET Multiplexer
37
Simplified Schematic of the Input Buffer Amplifier
37
Input Configuration During 2- and 4-Terminal Resistance Measurements
38
- AC Converter
  39
Resistance Measurement Simplified Circuit
39
- Pia
  40
- Display Board
  40
Digital Calibration
40
Model 1978 Battery Option
41
- Section 5-Maintenance
  42
Battery Pack (Model 1978) Installation
42
Introduction
42
Top Cover Removal/Installation
42
Fuse Replacement
43
- Line Fuse Replacement
  43
- Current Fuse Replacement
  43
Line Voltage Selection
43
Model 197 Miscellaneous Parts
44
Front Panel Calibration
45
- Recommended Calibration Equipment
  45
- Environmental Conditions
  45
- DC Voltage Calibration
  46
- AC Voltage Calibration
  46
- Frequency Compensation
  46
DC Voltage Calibration Configuration
46
AC Voltage Calibration Configuration
47
- Resistance Calibration
  48
- Calibration Storage
  48
Troubleshooting
49
A / D Converter and Display
50
- Signal Conditioning
  50
Segment Identification
50
Model 197 Troubleshooting Mode
52
Special Handling of Static Sensitive Devices
52
A / D Converter
54
- Section 6-Replaceable Parts
  55
Model 197 Static Sensitive Devices
54
Introduction
55
Ordering Information
55
- Factory Service
  55
- Schematic Diagrams and Component Location Drawings
  55
Replaceable Parts
55

Keithley 197 Instructions Manual (40 pages)

Autoranging Microvolt DMM

Brand: Keithley | Category: Measuring Instruments | Size: 1 MB

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