Hioki ST5540 Bedienungsanleitung

Instruction Manual

ST5541

LEAK CURRENT HiTESTER

ST5540

July 2016 Revised edition 7

ST5540A981-07 16-07H

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

ST5540A981-07

Contents

Using Alligator Clips (when using two

or three test leads) .................................................78

Chapter 6 Measurements 79

6.1 Making manual measurements 79

6.2 Making automatic measurements

................................................. 82

6.3 Measurement examples ...........83

Earth leakage current measurement ......... 83

Touch current measurement ..................... 84

Patient leakage current measurement*

(Patient connection - Earth) ..................... 90

Patient leakage current measurement*

(external voltage on a SIP/SOP).............. 93

Patient leakage current measurement*

(external voltage on a specific F-type

applied part) ............................................. 95

Patient leakage current measurement*

(external voltage on metal accessible part

not protectively earthed) .......................... 97

Patient auxiliary current measurement* .... 99

Total patient leakage current measurement*

(Patient connection - Earth)................... 100

Free current measurement

(Enclosure - Enclosure) ......................... 101

6.4 Saving Measurement Data

(As required).......................... 102

Checking Saved Measurement Data ....... 104

Displaying Saved Measurement Data ..... 104

Selecting Saved Measurement Data ...... 105

Deleting Saved Data ............................... 105

6.5 Saving Measurement Conditions

(Panel Save Function)

(as required) ..........................106

6.6 Printing Measurement Data

(as required) ..........................108

Setting up and connecting a printer ......... 108

Chapter 7 Instrument System

Settings 115

System Screen Configuration .................. 116

7.1 Setting the Mode (To use the

instrument as a voltmeter) .....117

7.2 Panel Load(Loading Saved

Measurement Conditions)...... 120

7.3 Initializing the Instrument .......121

7.4 Setting the Display Language 123

7.5 Checking Fuses(During Earth

leakage current and protective

conductor current measurements)

................................................123

7.6 Self-Test .................................124

7.7 Power On Polarity Switching

(to keep equipment under test

on during polarity switching) .. 126

Connect the isolation transformer............ 126

Setting Power On Polarity Switching .......127

Relay check 2 .......................................... 128

7.8 Auto Measure Setting

(set instrument status) ........... 129

7.9 Setting Lower Limit Values (factor)

............................................... 130

7.10 Setting Indication Unit ............131

7.11 Setting Date and Time ...........132

7.12 Interface Setting

(For Communication and Printing)

................................................133

7.13 Setting the Beep Sound .........135

7.14 Setting the Backlight.............. 136

Chapter 8 Controlling the

Instrument From a

Computer

(RS-232C,

USB interface) 139

8.1 ST5540/ST5541 Remote Interface

Overview (USB connection) ...140

8.2 Connect and be sure to tighten

the screws on the connector.. 141

Installation and operation procedures .....143

Specifications of RS-232C....................... 144

Specifications of USB .............................. 144

Contents

iii

8.3 Setting Communication

Conditions on the HiTESTER 145

8.4 Command Message Description

................................................146

Message Format ......................................146

Output Queue and Input Buffer ................151

Event Registers ........................................152

8.5 Initialization Items ..................153

8.6 Message Reference ...............154

Common Messages .................................154

Messages Specific to the HiTESTER....... 154

8.7 Command Message Description

............................................... 162

Common Messages .................................163

Specific commands ..................................165

8.8 To Transfer All Saved Data to

a Computer ............................243

8.9 Troubleshooting .....................244

Chapter 9 External Control

245

9.1 Description of Signals............ 246

9.2 Connecting to the EXT I/O

Terminal................................. 247

9.3 Electrical Specifications .........249

9.4 Internal Circuit Configuration .250

9.5 Timing Chart ..........................251

Panel load function at EXT I/O start .........253

9.6 Example of Output Signal

Connection .............................254

Chapter 10 Specifications255

10.1 Basic Functions...................... 255

10.2 Auxiliary measurement functions*

............................................... 256

10.3 Measurement System ............256

10.4 Accuracy ................................258

Current Measurement Section .................258

Network Section ...................................... 259

10.5 Other Functions ......................261

10.6 System-related Functions ......263

10.7 User interface .........................264

10.8 EXT I/O ..................................264

10.9 Relay output for medical equipment

(only ST5540) .........................264

10.10 PC Interfaces....................... 265

10.11Printer ...................................265

10.12General Specifications ..........266

10.13Compliant standards............. 268

10.14Measurement Networks ........269

Network A (for Electrical Appliance

and Material Safety Law) ....................... 269

Network B1 (for JIS T 0601-1:1999) ........ 270

Network B2 (for IEC 60601-1:2005 3rd) .. 271

Network C (for IEC 60990) ...................... 272

Network D (for UL) .................................. 274

Network E (General-purpose 1) .............. 275

Network F (General-purpose 2) ............... 275

Network G (for IEC61010-1) .................... 276

Chapter 11 Maintenance

and Service 279

11.1 Cleaning and Storage ............279

11.2 Repair and Servicing...............280

11.3 Replacing Fuses ....................282

11.4 Instrument Disposal ...............283

Appendix A1

Appendix1Terminology.................... A1

Appendix2List of instrument status,

other test condition and special

test condition......................... A4

Appendix3List of default settings..... A7

Appendix4External Dimensions..... A29

Appendix

Index

Contents

Index i

Be sure to read "Usage Notes" (p. 5) before measuring.

The flowchart does not show the detailed procedures but the rough workflow.

Measurement Flowchart

See "6.5 Saving Measurement Conditions (Panel Save Function) (as required)" (p. 106)

See "6.4 Saving Measurement Data (As required)" (p. 102)

See "3.5 Pre-Test Inspection" (p. 41)

See "Chapter 6 Measurements" (p. 79)

Manual : Free-run measurement

(Measurement conditions can be changed during ongoing measurements)

Automatic : Set measurement conditions and measuring time to perform automatic measurements.

See "6.6 Printing Measurement Data (as required)" (p. 108)

See "Connecting the power cord of the equipment under test"

(p. 33)

See "Connecting the instrument power cord" (p. 32)

See "5.1 Connecting the Test Lead" (p. 75)

See "3.1 Power switch, breaker ON/OFF" (p. 31)

See "3.4 Turning Power On and OFF" (p. 38)

See "3.1 Power switch, breaker ON/OFF" (p. 31)

See "3.4 Turning Power On and OFF" (p. 38)

Connect the power cord

Connect test leads

Pre-Operation Inspection

Measurements

After automatic measurement ends

See "Chapter 4 Settings" (p. 47)

Settings depend on measurement method (Manual or Automatic)

Manual measurement : Perform settings from (p. 48) to (p. 67)

Automatic measurement : Perform settings from (p. 48) to (p. 73)

Turn on the circuit breaker

Settings

Connecting equipment under test to the instrument

See "3.3 Connecting equipment under test to the instrument"

(p. 36)

Turn on the power switch of the HiTESTER

The actual connection procedure will vary with the power supply

of the equipment under test.

Disconnect test leads and equipment under test

Turn off breakers and instrument power

Thank you for purchasing the HIOKI Model "ST5540/ST5541 Leak Current HiTester". To obtain maximum

performance from the instrument, please read this manual first, and keep it handy for future reference.

When you receive the instrument, inspect it carefully to ensure that no damage occurred during shipping.

In particular, check the accessories and connectors. If damage is evident, or if it fails to operate according

to the specifications, contact your dealer or Hioki representative.

Introduction

Inspection

• Before using the instrument, make sure that the insulation on the test leads is

undamaged and that no bare conductors are improperly exposed. Using the

Model L2200 Test Lead in such conditions could cause an electric shock, so con-

tact your dealer or Hioki representative for replacements.

• Before using the instrument, make sure that the insulation on the power cords is

undamaged and that no bare conductors are improperly exposed. Using the

instrument in such conditions could cause an electric shock, so contact your

dealer or Hioki representative for replacements.

• Use the original packing materials when transporting the instrument, if possible.

Checking the contents of the package

"ST5540/ST5541 Leak Current HiTester".........1

Power cord (for main instrument)..................... 1

Power cord for equipment under test............... 2

(for [LINE IN])

Enclosure Probe............................................... 1

Spare fuse for main instrument........................ 1

(250 V F50 mAL)

L2200 Test Lead...........................................1set

(1 red, 1 black)

Test lead(red)................................................... 1

(only ST5540)

Instruction manual............................................ 1

CD-ROM .......................................................... 1

Confirm that these contents are provided.

This manual contains information and warnings essential for safe operation of the instrument and for

maintaining it in safe operating condition. Before using it, be sure to carefully read the following safety

precautions.

The following symbols in this manual indicate the relative importance of cautions and warnings.

Safety Notes

This instrument is designed to comply with IEC 61010 Safety Standards,

and has been thoroughly tested for safety prior to shipment. However, mis-

handling during use could result in injury or death, as well as damage to

the instrument. Using the instrument in a way not described in this manual

may negate the provided safety features.

Be certain that you understand the instructions and precautions in the

manual before use. We disclaim any responsibility for accidents or injuries

not resulting directly from instrument defects.

Safety Symbols

In the manual, the symbol indicates particularly important information that the user should read before

using the instrument.

The symbol printed on the instrument indicates that the user should refer to a corresponding topic in the

manual (marked with the symbol) before using the relevant function.

Indicates a fuse.

Indicates a grounding terminal.

Indicates AC (Alternating Current).

Indicates the ON side of the power switch.

Indicates the OFF side of the power switch.

Indicates that the product conforms to regulations set out by the EC Directive.

WEEE marking:

This symbol indicates that the electrical and electronic appliance is put on the EU market after August 13,

2005, and producers of the Member States are required to display it on the appliance under Article 11.2 of

Directive 2002/96/EC (WEEE).

Indicates that incorrect operation presents an extreme hazard that could result in serious injury or death

to the user.

Indicates that incorrect operation presents a significant hazard that could result in serious injury or death

to the user.

Indicates that incorrect operation presents a possibility of injury to the user or damage to the instrument.

Indicates advisory items related to performance or correct operation of the instrument.

Accuracy

We define measurement tolerances in terms of f.s. (full scale), rdg. (reading) and dgt. (digit) values, with

the following meanings:

This instrument complies with CAT II (300 V) safety requirements.

To ensure safe operation of measurement instruments, IEC 61010 establishes safety standards for vari-

ous electrical environments, categorized as CAT II to CAT IV, and called measurement categories.

Using a measurement instrument in an environment designated with a higher-numbered category than

that for which the instrument is rated could result in a severe accident, and must be carefully avoided.

Use of a measurement instrument that is not CAT-rated in CAT II to CAT IV measurement applications

could result in a severe accident, and must be carefully avoided.

Other Symbols

Indicates a prohibited action.

See Indicates the location of reference information.

*Indicates that descriptive information is provided below.

(Example)

Leakage current For information on text in italics, refer to "Appendix1 Terminology" (p. A1).

Indicates descriptions relating to the RS-232C only.

Indicates descriptions relating to the USB only.

USB

f.s. (maximum display

value): The maximum displayable value. This is usually the name of the currently selected range.

rdg. (reading or

displayed value): The value currently being measured and indicated on the measuring instrument.

dgt. (resolution): The smallest displayable unit on a digital measuring instrument , i.e., the input value that

causes the digital display to show a "1" as the least-significant digit.

Measurement categories

CAT II : Primary electrical circuits in equipment connected to an AC electrical outlet by a power cord (portable tools,

household appliances, etc.)

CAT II covers directly measuring electrical outlet receptacles.

CAT III : Prima ry electrical circuits o f heavy equipment (fixed installations) connected directly to the distribution panel,

and feeders from the distribution panel to outlets.

CAT IV : The circuit from the service drop to the service entrance, and to the power meter and primary overcurrent pro-

tection device (distribution panel).

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