GW Instek GDM-8245 Manuals

Manuals and User Guides for GW Instek GDM-8245. We have 5 GW Instek GDM-8245 manuals available for free PDF download: Service Manual, User Manual, Short Instruction, Short Instructions

GW Instek GDM-8245 Service Manual (100 pages)

Brand: GW Instek | Category: Multimeter | Size: 3 MB

Table of Contents
3
Safety Requirements
6
Safety Symbols and Terms
6
Precautions before Use
7
Declaration of Conformity
10
Introduction
11
Features
11
Package Contents
11
Standard Items
11
Specifications
12
DC Voltage
12
True Rms Ac, Ac+DC Voltage
13
Frequency Measurement at ACV Range
14
DC Current
14
True Rms Ac or Ac+DC Current
14
Frequency Measurement at Aca Range
15
Resistance
15
Capacitance
15
Diode Check
16
Continuity Beeper
16
Environmental
16
General
16
Input Overload Protection
17
Front/Rear Panel
18
Calibration Log
19
Verification Log
23
Block Diagram
31
Trouble Shooting
39
Power-On Test
40
Power Supply Checks
40
Display Board Checks
41
Digital Circuitry Checks
42
Key Matrix Checks
43
Digital Circuitry Checks
43
Calibration
49
Preparation
50
List of Equipment
51
Component Position (Servicing)
52
Entering the Calibration Mode
53
Voltage Verification
54
LED Verification
55
Power Supply Current Verification
55
ACV, ACA, DCA, Ω Short Calibration
56
Frequency Response Calibration
56
Frequency Response Adjustment
58
Capacitance Calibration (Open)
60
Resistance Calibration
60
DCV Calibration
61
Diode Calibration
63
DCA Calibration
64
ACA Calibration
65
Capacitance Calibration
66
Exit Calibration Mode
67
Verification
68
Resistance Verification (Short)
69
Resistance Verification
69
Diode Verification
70
Capacitance Verification (Open)
70
Capacitance Verification
71
DCA Verification (Short)
71
DCA Verification
72
ACA Verification
73
ACV Verification (Short)
74
ACV Verification (Part 1)
74
AC+DC Verification
75
ACV Verification (Part 2)
75
DCV Verification (Short)
76
DCV Verification (Part 1)
76
DCV Verification (Dbm)
77
DCV Verification (Part 2)
77
Beeper Test
78
Frequency Measurement Verification
78
Changing the AC Mains / Fuse
80
Replace Input Current Fuse
82
Replaceable Parts and Disassembly
83
External View
84
Disassembly
85
Disassembly Equipment
85
Outer Casing
86
Main PCB and Front/Rear/Bottom Panel Removal
87
Front Panel PCB Removal
88
GDM-8245 Mechanical Parts List
89
Front Panel
89
Top and Bottom Case
90
PCB Parts
90
Rear Panel and Handle
91
Others
91
Circuit Diagrams and Component Parts List
92
Circuit Diagram 1 (GDM-8245)
93
Circuit Diagram 2 (GDM-8245)
94
Circuit Diagram 3 (GDM-8245)
95
Circuit Layout (GDM-8245)
96
GDM-8245 Component Parts List
97

GW Instek GDM-8245 User Manual (56 pages)

Brand: GW Instek | Category: Multimeter | Size: 0 MB

Table of Contents

3
- Safety Instructions
  5
  - Safety Symbols
    5
  - Safety Guidelines
    6
Etting Started

10
- Getting Started
  11
  - GDM-8245 Characteristics
    11
  - Front Panel Overview
    12
    
    Measurement Keys (Upper Row)
    13
    
    Measurement Keys (Lower Row)
    14
  - Rear Panel Overview
    16
  - Set up
    17
    
    Setup
    17
    
    Tilt Stand
    17
    
    Power up
    18
Asic Measurement

20
- Basic Measurement
  20
  - Basic Measurement Overview
    21
    
    Overview Basic Measurement Overview
    21
  - AC/ AC MV/DC/ DC MV/Ac+DC Voltage Measurement
    22
    
    Voltage AC/ AC MV/DC/ DC MV/Ac+DC Voltage Measurement
    22
    
    Select Voltage Range
    24
    
    Voltage Conversion Table
    25
    
    Crest Factor Table
    27
  - DC/ DC 20A / AC/AC 20A/AC+DC Current Measurement
    28
    
    Measurement
    28
    
    Select Current Range
    30
  - Resistance Measurement
    31
    
    Resistance Resistance Measurement
    31
    
    Select Resistance Range
    32
  - Diode Test
    33
    
    Diode Diode Test
    33
  - Continuity Test
    34
    
    Continuity Continuity Test
    34
  - Capacitance Measurement
    35
    
    Capacitance Capacitance Measurement
    35
  - Calibration Button
    36
    
    Calibration Calibration Button
    36
Dvanced Measurement

37
- Advanced Measurement
  
  37
  - Advanced Measurement Overview
    38
    
    Overview Advanced Measurement Overview
    38
  - Dbm Measurement
    39
    
    Dbm Dbm Measurement
    39
    
    Measure Dbm
    39
  - Max/Min Measurement
    40
    
    Max/Min Max/Min Measurement
    40
  - Relative Value Measurement
    41
    
    Relative Relative Value Measurement
    41
  - Hold Measurement
    42
    
    Hold Hold Measurement
    42
  - Ac+Hz Measurement
    43
    
    Ac+Hz
    43
- Faq
  
  44
- Appendix
  
  45
  - Fuse Replacement
    46

GW Instek GDM-8245 User Manual (15 pages)

DUAL DISPLAY DIGITAL MULTIMETER

Brand: GW Instek | Category: Multimeter | Size: 0 MB

GW Instek GDM-8245 Short Instructions (9 pages)

Table Multimeter

Brand: GW Instek | Category: Multimeter | Size: 0 MB

GW Instek GDM-8245 Short Instruction (9 pages)

Table Multimeter

Brand: GW Instek | Category: Multimeter | Size: 0 MB

GW Instek Categories

Power Supply Test Equipment Measuring Instruments Multimeter Inverter

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GW Instek GDM-8245 Service Manual (100 pages)

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GW Instek GDM-8245 User Manual (56 pages)

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Asic Measurement

Dvanced Measurement

Advanced Measurement

Faq

Appendix

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GW Instek GDM-8245 Short Instructions (9 pages)

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