Extech Instruments 420 manuals

Extech instruments 420 Specifications (14 pages)

Brand: Extech-instruments | Category: Multimeters | Size: 0.78 MB |

English

Table of contents

COOL UNDER PRESSURE

3

QUIETER IS BETTER

4

LESS POWER USED IS BETTER

5

IN CONCLUSION

5

Test requirements

9

Running the test

10

Setting up the test

10

Measuring acoustics

11

Measuring power consumption

12

Extech instruments 420 User's Guide (15 pages)

Brand: Extech-instruments | Category: Multimeters | Size: 0.27 MB |

English

Table of contents

WARRANTY

2

Introduction

3

Safety Precautions

4

Specifications

6

Meter Description

10

Operation

11

)" position

12

input

13

Maintenance

15

Extech instruments 420 Specifications (109 pages)

Brand: Extech-instruments | Category: Multimeters | Size: 1.66 MB |

English

Table of contents

Model MS460 - 60MHz

1

Model MS420 - 20MHz

1

INTRODUCTION

2

TABLE OF CONTENTS

3

(REFER TO THE FIG. 1 BELOW)

5

SAFETY INFORMATION

6

GENERALSAFETYINFORMATION

7

INPUT CONNECTIONS

9

Figure 3

10

V5.1‐March2010

11

BASIC OSCILLOSCOPE FUNCTIONS

12

MENUDESCRIPTION

15

SELECTINGAC‐COUPLING

25

—CH Math Volts/Div

27

—CH M Zero

27

Refer to Figure 18

28

ABOUTTHISCHAPTER

29

SETTING THE CHANNEL COUPLING

30

Figure 20: AC Coupling

31

ETTING THE PROBE ATTENUATION

32

INVERT A WAVEFORM

33

SETTINGTHETRIGGERSYSTEM

35

TRIGGERINGCONTROL

36

VIDEO TRIGGERING

37

Function

38

Settings Description

38

ALTERNATE TRIGGER

40

Coupling

41

Set trigger sensitivity

41

Description

43

Glossary of Terms

44

ACQUISITIONMODE

45

DISPLAYSETTING

45

DISPLAY STYLE

46

PERSISTENCE

47

XY MODE

47

STORINGWAVEFORMS

49

Auto-calibration

51

Autoscale

55

HORI—VERT

56

CURSORMEASUREMENTS

60

—Cursor 2

62

—Cursor 1

62

— FFT dB level

66

Figure 41

69

Selecting an FFT Window

69

Fig 42 - Rectangle window

71

Fig 43 - Blackman window

71

Fig.45 - Hamming window

72

SYSTEMSTATUSMENU

74

System Status

74

MAINTIMEBASEMODE

75

PCDATATRANSMISSION

76

User'sGuide 

77

USING THE MULTIMETER

79

MEASURING RESISTANCE

81

MEASURING DIODE VOLTAGE

81

CONTINUITY TEST

83

Figure 4: Continuity Test

84

MEASURING CAPACITANCE

85

MEASURING DC VOLTAGE

85

MEASURING AC VOLTAGE

86

MEASURING DC CURRENT

87

MEASURING AC CURRENT

89

AKING A RELATIVE MEASUREMENT

92

APPENDICES

97

( T) measurement

98

+100ppm×reading+0.4ns)

98

±2V(5mV/div~200mV/div),

99

Measurement

100

MULTIMETER

101

10A ±3% ±3 digit 10mA

102

V4.0‐March2010

103

GENERAL SPECIFICATIONS

104

MAINTENANCE

105

STORAGE OF INSTRUMENT

105

Warranty(English)

108

Garantía(Español)

108

Garantie(Français)

109

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