Agilent Technologies DC140 Guía de usuario descargar pdf (Pagina 103)

Measurement Tutorial 3

34450A Users Guide 83

Considering the internal resistance and external lead

resistance total is 0.0125 ohm. If applying a 1 A DC current,

an error of (0.0125 ohm x 1 A) 0.0125 V or 12.5 mV will

occur. This error will be relative by range with the ADC

dynamic range of 1.2 V.

Figure 3-4 Example of measuring voltage and current in dual measure-

ment

The error in measurement will be significant when applying a higher

current.

34450A UG.book Page 83 Tuesday, July 23, 2013 2:43 PM

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Agilent 34450A 1
5½ Digit Multimeter 1
Safety Symbols 3
Regulatory Markings 4
General Safety Information 5
VI 34450A User’s Guide 6
Environmental Conditions 7
2002/96/EC 8
Additional Notices 9
In This Guide… 11
XII 34450A User’s Guide 12
Contents 13
XIV 34450A User’s Guide 14
34450A User’s Guide XV 15
XVI 34450A User’s Guide 16
34450A User’s Guide XVII 17
XVIII 34450A User’s Guide 18
Figures 18
34450A User’s Guide XIX 19
XX 34450A User’s Guide 20
Getting Started Tutorial 21
The Front Panel at a Glance 22
The display at a glance 23
Single display screen 23
Dual display screen 23
4 34450A User’s Guide 24
1 Getting Started Tutorial 24
Getting Started Tutorial 1 25
34450A User’s Guide 5 25
The Keypad at a Glance 26
34450A User’s Guide 7 27
Feature Upgrades 29
The Rear Panel at a Glance 30
Making Measurements 31
Digit masking 32
(HI terminal) 33
14 34450A User’s Guide 34
Measuring resistance 35
16 34450A User’s Guide 36
34450A User’s Guide 17 37
18 34450A User’s Guide 38
34450A User’s Guide 19 39
Testing continuity 40
Checking diodes 41
Measuring temperature 42
Measuring capacitance 43
Selecting a Range 44
Remote Operation 45
Serial interface 46
GPIB IEEE-488 (Optional) 47
Code compatibility mode 48
SCPI commands 48
30 34450A User’s Guide 50
Functions and Features 51
Math Operations 52
Null measurement 53
– Offset 54
Hold measurement 55
Limit measurement 56
Accessing math menu 57
Editing single statistics 58
Editing all statistics 59
Editing dB measurement 60
Editing dBm measurement 61
9 Offset Value 62
Editing values 63
The Dual Display 64
Using the dual display 65
Using the Utility Menu 67
2 Functions and Features 68
48 34450A User’s Guide 68
Functions and Features 2 69
34450A User’s Guide 49 69
RS232 utility sub-menu 71
52 34450A User’s Guide 72
GPIB Utility Sub-Menu 73
Reading error messages 74
The beeper 75
Reset/Power-On State 78
34450A User’s Guide 59 79
Triggering the Multimeter 80
Software (Bus) Triggering 81
External Trigger 82
Tri gger Out 82
Manual Trigger 83
Data Logging 85
34450A User’s Guide 67 87
Viewing the log info 89
Viewing the log list 90
Viewing the log histogram 91
Viewing the log statistics 92
Measurement Tutorial 95
DC Measurement Considerations 96
Noise Rejection 97
Noise Caused by Ground Loops 98
Offset Compensation 105
EMF) - VEMF = I*R 106
True RMS AC Measurements 107
AC Filter 110
Frequency measurement errors 111
DC current measurements 112
Capacitance measurements 113
Temperature measurements 115
Loading Errors (AC volts) 116
Measurements Below Full Scale 116
Low- Level Measurement Errors 117
Pulse Measurement Error 118
Specifications 119
Test Considerations 120
DC Specifications 121
102 34450A User’s Guide 122
4 Specifications 122
AC Specifications 123
104 34450A User’s Guide 124
Specifications 4 125
34450A User’s Guide 105 125
Operating Specifications 126
34450A User’s Guide 107 127
108 34450A User’s Guide 128
34450A User’s Guide 109 129
110 34450A User’s Guide 130
34450A User’s Guide 111 131
General Characteristics 132
34450A User’s Guide 113 133
Accuracy specifications 135
DC voltage measurements 136
Agilent Technologies 137

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