Hioki ST5540, Instruction Manual, Page: 3 / 326

Contents
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Contents
Measurement Flowchart................................. 1
Introduction..................................................... 2
Inspection ....................................................... 2
Checking the contents of the package ........... 2
Safety Notes................................................... 3
Usage Notes................................................... 5
Chapter 1 Overview 7
1.1 Instrument Overview .................. 7
1.2 Features ..................................... 8
1.3 What is Leakage Current? ....... 10
1.4 Leakage Current Measurement
Complying with Standards ....... 11
1.5 Types of Leakage Current ....... 12
1.6 Types of Leakage Current
Measurement ........................... 13
Chapter 2 Instrument Labels
and Screens 23
2.1 Instrument Labels and Functions
................................................. 24
2.2 Screen configuration outline .... 27
2.3 About the Touch Panel ............ 30
Chapter 3 Setting
Preparations 31
3.1 Power switch, breaker ON/OFF 31
3.2 Connecting the Power Cord 3..... 2

Connecting the instrument power cord ......32

Connecting the power cord of the
equipment under test ................................33

Making connections to terminals S10, S12
and S13 ....................................................35
3.3 Connecting equipment under
test to the instrument ............... 36

Connect the terminal ................................. 36
3.4 Turning Power On and OFF ..... 38

Turning Power On ..................................... 38

Turning Power Off ..................................... 40
3.5 Pre-Test Inspection .................. 41

Checking measurement frequency ............ 43

Connection/VA check screen .................... 44
Chapter 4 Settings 47
4.1 Selecting a Network ................. 48
4.2 Selecting the Grounding Class of
Equipment Under Test ............. 49

Registering an Equipment Name/
Control Number........................................ 50
4.3 Selecting a Measurement Mode
(opens the measurement screen)
.................................................. 51
4.4 Setting the Measurement Range
(Auto/Hold) ............................... 54
4.5 Setting the Filter ....................... 59
4.6 Setting the Allowable Value ..... 61

Turning lower limit values on and off for
specific leakage current measurements .. 63
4.7 Selecting the Type of Target
Current ..................................... 64
4.8 Changing the Measurement
Method (Auto/Manual) .............. 67

Setting automatic measurement items ...... 68

Setting the measurement delay
(delay time) .............................................. 70

Setting the measuring time ........................ 73
Chapter 5 Measurement
Preparations 75
5.1 Connecting the Test Lead ........ 75

Using L2200 Test Lead ............................. 77

Using the 9195 Enclosure Probe
(for measuring enclosure leakage current) 77
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ST5540A981-07