Agilent Technologies U3401A Service Manual download pdf (Page 29)

Getting Started 1

U3401A User’s and Service Guide 11

The keypad at a glance

The operation for each key is shown on Table 1- 2. Pressing a key changes

the current key operation, illuminates the related symbol on the display

and emits a beep.

Figure 1-7 Keypad

Table 1 - 2 Keypad functions

Key Description

System related operation

Press to power-on or power-off the U3401A multimeter.

Press to select Shift.

Press to return the multimeter to front panel operation when it is

in remote state.

Press to step through the Setup menu. See “Using the Setup

Menu” on page 43 for more information.

Press to enable the secondary display.

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 116 117

Agilent U3401A 1
4 1/2 Digit Dual Display 1
Multimeter 1
Safety Symbols 3
Regulatory Markings 4
General Safety Information 5
Environmental Conditions 7
2002/96/EC 8
In This Guide 10
Contents 11
3 Application Tutorial 12
4 Performance Test 12
5 Disassembly and Repair 12
List of Figures 15
Frequency 53 16
List of Tables 17
Getting Started 19
Original packaging 21
Stacking the U3401A 23
Adjusting the Handle 24
Product at a Glance 25
The front panel at a glance 26
The display at a glance 27
1Getting Started 28
The keypad at a glance 29
The terminals at a glance 32
Getting Started 1 33
The rear panel at a glance 34
Making measurements 35
AC voltage 36
DC Voltage 37
• Measurement ranges: 39
Test current 41
Test c ur r e n t 43
Selecting a Range 44
Table 1 - 4 Range scale value 45
Operations and Features 47
Operating Math Functions 48
Procedure 1 49
Procedure 50
Refresh Hold 55
OL or open state 56
Percentage (%) 57
Using the Secondary Display 59
2 Operations and Features 60
Using the Setup Menu 61
Trigger Mode 63
Application Tutorial 65
Measure Resistance 70
Measure True RMS AC + DC 71
Performance Test 73
Calibration Overview 74
Recommended Test Equipment 75
Test Considerations 76
DC Voltage Verification Test 77
DC Current Verification Test 78
Performance Test 4 79
Resistance Verification Test 80
Diode Verification Test 81
Frequency Verification Test 81
AC Voltage Verification Test 82
AC Current Verification Test 83
4Performance Test 84
Disassembly and Repair 85
Operating Checklist 86
Types of Service Available 87
Repackaging for Shipment 88
Cleaning 88
Type of fuse Part number 90
0.63 mA, 500 V fuse 2110-1432 90
Mechanical Disassembly 91
Front Panel Removal 93
Front Panel Disassembly 96
Replaceable Parts 97
DC Specifications 100
AC Specifications 101
True RMS AC Current 102
Frequency 103
Decibel (dB) Calculation 104
Display update rate 105
Measurement Specifications 105
Reading rates 112
General Characteristics 113
Accuracy Specifications 116
Agilent Technologies 117

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Agilent Technologies U3401A Service Manual Page 29

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