Agilent Technologies U1242B Manual de Serviço descarregar pdf (Página 22)

8 U1241B/U1242B User’s and Service Guide

1Getting Started

The Input Terminal at a Glance

Figure 1-5 Input terminal of a U1242B handheld digital multimeter

Table 1-6 Terminal connections for different measuring functions

WARNING

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

Measurement

Functions

Input terminal Overload Protection

Voltage

COM

1000 V R.M.S.

Diode 1000 V R.M.S

Resistance < 0.3 A short circuit current

Capacitance

μA & mA μA mA COM 440 mA/1000 V 30 kA/fast-acting

fuse

A ACOM11 A/1000 V 30 kA/fast-acting

fuse

Te m p e r a t u r e +T1 –T1 1000 V R.M.S.

Temperature (for

U1242B only)

+T2 –T2 440 mA/1000 V 30 kA/fast-acting

fuse

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 84 85

Agilent U1241B and 1
Handheld Digital 1
Multimeters 1
Safety Symbols 3
Regulatory Markings 4
2002/96/EC 4
General Safety Information 5
Environment Conditions 7
In This Guide… 9
Contents 11
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
Testing Dio des 27
Measuring Capacitance 28
Measuring Temperature 28
(U1242B) 29
Using Switch Counter 30
MinMax Recording 32
Data Hold (Trigger Hold) 33
Refresh Hold 33
Null (Relative) 34
Data Logging (U1242B) 34
Manual Logging 35
Interval Logging 36
Reviewing Logged Data 37
Removing Logged Data 37
Checking Battery Capacity 38
Overload Alert 39
Input-A Warning Alert 39
Input-mA Warning Alert 39
2 Features and Functions 40
Agilent Technologies 41
Setting Configurations 42
Service and Maintenance 45
Battery Replacement 46
Fuse Replacement 47
Troubleshooting 49
4 Service and Maintenance 52
Calibration Overview 54
Adjustment is Recommended 55
Recommended Test Equipment 56
Basic Operating Test 57
Calibration Process 58
Test Considerations 59
Input Connections 60
Table 5-2 Verification Tests 61
Error from nominal 1 year 61
U1241B U1242B 61
position 10 A 10.000 A 63
function 10 A 10.000 A 63
T1 or T1T2 63
T2 function 63
Calibration Security 64
Selecting the Adjustment Mode 66
Entering Adjustment Values 66
Adjustment Considerations 67
Calibration Adjustments 69
Exiting Adjustment Mode 73
Calibration Count 74
Calibration Errors 74
DC Specifications 76
AC Specifications 77
Resistance Specifications 78
Temperature Specifications 79
Capacitance Specifications 80
Harmonic Ratio Specifications 80
Frequency Specifications 81
Operating Specifications 82
General Characteristics 83

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