Agilent Technologies U1242A Manual de Serviço descarregar pdf (Página 24)

10 U1241A/U1242A User’s and Service Guide

2 Features and Functions

Measuring Voltage

Measuring DC Voltage Measuring AC Voltage

Measuring Current (> 440 mA)

WARNING

Ensure that terminal connections are correct for that particular measurement before any

measurement. To avoid damaging the device, do not exceed the input limit.

Press to select

AC voltage measurement

mode.

(U1241A) or

(U1242A)

Press to select

AC current measurement

mode

Measuring DC current Measuring AC current

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 84 85

Agilent U1241A and 1
Handheld Digital 1
Multimeters 1
Safety Symbols 3
General Safety Information 4
Environment Conditions 6
Regulatory Markings 7
2002/96/EC 8
In This Guide… 9
Contents 11
4 Service and Maintenance 12
Getting Started 15
Introduction 16
The Front Panel at a Glance 18
Adjusting Tilt Stand 18
The Annunciator at a Glance 19
Analog Bar Graph 20
Getting Started 1 21
1Getting Started 22
Features and Functions 23
Measuring Voltage 24
Measuring Frequency 26
Forward bias 27
Measuring Capacitance 28
Measuring Temperature 28
Press at 29
T1T2 (U1242A) 29
Using Switch Counter 30
MINMAX Recording 32
Data Hold (Trigger Hold) 32
Refresh Hold 33
NULL (Relative) 33
Data Logging (U1242A) 34
Manual Logging 35
Interval Logging 35
Reviewing Logged Data 36
Removing Logged Data 36
Checking Battery Capacity 37
Overload Alert 38
Input-A Warning Alert 38
Input-mA Warning Alert 38
Agilent Technologies 39
Setting Configurations 40
Service and Maintenance 43
Battery Replacement 44
Fuse Replacement 45
Fuse 1 (440 mA/1000V) 46
Fuse 2 (11 A/1000 V) 46
Rotary Switch 46
Troubleshooting 47
Calibration Overview 50
Adjustment is Recommended 51
Recommended Test Equipment 52
Basic Operating Test 53
Calibration Process 54
Test Considerations 55
Input Connections 56
Error from nominal 1 year 57
U1241A U1242A 57
A position 10 A 10.000 A 59
A function 10 A 10.000 A 59
T1 or T1T2 59
T2 function 59
Calibration Security 60
Selecting the Adjustment Mode 62
Entering Adjustment Values 62
Adjustment Considerations 63
Calibration Adjustments 65
Exiting Adjustment Mode 69
Calibration Count 70
Calibration Errors 70
DC Specifications 72
AC Specifications 73
Resistance Specifications 74
Temperature Specifications 75
Capacitance Specifications 76
Harmonic Ratio Specifications 76
Frequency Specifications 78
Operating Specifications 79
General Characteristics 80

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