Page 1 ST5540 ST5541 Instruction Manual LEAK CURRENT HiTESTER July 2016 Revised edition 7 ST5540A981-07 16-07H...
Page 3: Table Of Contents
Contents Contents  Measurement Flowchart......... 1 Connect the terminal ......... 36 Introduction............. 2 3.4 Turning Power On and OFF ..38 Inspection ............2  Turning Power On ........38  Checking the contents of the package ... 2 Turning Power Off ........40 Safety Notes...........
Page 4 (as required) ......108 (RS-232C,  Setting up and connecting a printer ..108 USB interface) 139 8.1 ST5540/ST5541 Remote Interface Chapter 7 Instrument System Overview (USB connection) ... 140 Settings 8.2 Connect and be sure to tighten the screws on the connector .. 141 ...
Page 5 Output Queue and Input Buffer ....151  10.9 Relay output for medical equipment Event Registers ........152 8.5 Initialization Items ....153 (only ST5540) ......264 8.6 Message Reference ....154 10.10 PC Interfaces ....... 265  10.11Printer ........265 Common Messages .........154 ...
Page 6 Contents Index...
Page 7: Measurement Flowchart
Measurement Flowchart Be sure to read "Usage Notes" (p. 5) before measuring. The flowchart does not show the detailed procedures but the rough workflow. Connect the power cord "Connecting the instrument power cord" (p. 32) "Connecting the power cord of the equipment under test" (p.
Page 8: Introduction
Introduction 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. Inspection When you receive the instrument, inspect it carefully to ensure that no damage occurred during shipping.
Page 9: Safety Notes
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.
Page 10 Other Symbols Indicates a prohibited action. Indicates the location of reference information. Indicates that descriptive information is provided below. (Example) For information on text in italics, refer to "Appendix1 Terminology" (p. A1). Leakage current Indicates descriptions relating to the RS-232C only. Indicates descriptions relating to the USB only.
Page 11: Usage Notes
If the instrument operates abnormally or displays an abnormal indication, turn off the power switch immediately, and contact your dealer or Hioki representative. Precautions before measurement • Before turning on the instrument, confirm that the voltage of the power source matches the voltage specification indicated on the instrument's power connector ([AC IN]).
Page 12 • Since a blown fuse cannot be repaired or replaced by the cus- tomer, contact your dealer or nearest Hioki sales office. Use the VA check function for power supply fuse and blown fuse check function for measurement circuit fuse to check for blown fuses.
Page 13: Chapter 1 Overview
1.1 Instrument Overview Chapter 1 Overview 1.1 Instrument Overview To ensure the safe use of electrical products, it is necessary to conduct electrical safety tests such as insulation resistance, withstand voltage, ground resistance, and leakage current. Complying with laws and standards regarding medical electrical equipment as well as non-medical elec- trical equipment, this instrument can be used to measure leakage current in all types of electrical prod- ucts from computers to medical equipment.
Page 14: Features
1.2 Features 1.2 Features Wide range of measurement networks in compliance with standards and laws To test electrical equipment for leakage current, it is necessary to use a measurement network that simu- lates the human body in compliance with applicable standards or laws. The instrument includes the 8 measurement networks below.
Page 15 1.2 Features Function for checking for blown fuses The insutrument allows you to check for unintended blown fuses in networks. Check for blown fuses before and after measurements to enable high-reliability measurements. Ease of operation All operations are performed using the touch panel. The display shows operable keys and the interactive system guides you through measurement procedures.
Page 16: What Is Leakage Current
1.3 What is Leakage Current? 1.3 What is Leakage Current? High voltage is present in an electrical appliance that uses a commercial power supply as its main power source. Touching such equipment may expose a person to an electrical shock when current passes through the body to ground.
Page 17: Leakage Current Measurement Complying With Standards
1.4 Leakage Current Measurement Complying with Standards 1.4 Leakage Current Measurement Complying with Standards Electrical safety standards and laws are enacted for electrical products according to fields of application. Each standard and law specifies a circuit network for simulating the human body, and prescribes network performance, as well as measuring locations, type (e.g., AC, DC) of current to be measured, allowable values, and other characteristics.
Page 18: Types Of Leakage Current
1.5 Types of Leakage Current 1.5 Types of Leakage Current Leakage current can largely be classified as shown in the table below. Refer- Types of Overview ence Leakage Current Page Earth leakage This refers to electric current that flows through a protective earth conductor to P.13 current the ground.
Page 19: Types Of Leakage Current Measurement
1.6 Types of Leakage Current Measurement 1.6 Types of Leakage Current Measurement Earth leakage current measurement Class-II equipment does not require the measurement of Earth leakage current since it has no protective earth conductor. Earth leakage current is measured by inserting a resistance equivalent to the human body in the protec- tive earth conductor.
Page 20 1.6 Types of Leakage Current Measurement Touch current measurement Class-I equipment does not require the measurement of enclosure leakage current since metal enclo- sures must be grounded for electrical protection. However, when the protective earth conductor becomes disconnected (single fault), the enclosure is no longer grounded for protection and must be measured. For Class-II equipment, all enclosures are ungrounded for electrical protection and must be tested.
Page 21 1.6 Types of Leakage Current Measurement Patient auxiliary current Patient auxiliary current is current that flows through an "applied part human body applied part" path. Regardless of the medical equipment class, type of applied parts, and signal input/output selection, all medical equipment with multiple applied parts must undergo this measurement.
Page 22 1.6 Types of Leakage Current Measurement Patient leakage current measurement (external voltage on a SIP/SOP)   This is electric current that flows through an "applied part human body ground" path. Measure medical instruments with a signal input/output section and applied parts other than F-type. Mea- sure assuming that medical equipment with a broken signal input/output section is connected.
Page 23 1.6 Types of Leakage Current Measurement Patient leakage current measurement (external voltage on a specific F-type applied part)  This is electric current that flows through an "applied part of malfunctioning medical equipment human  body F-type applied part" path. The measurement of this leakage current is required only for medical devices with an F-type applied part.
Page 24 1.6 Types of Leakage Current Measurement Patient leakage current measurement (external voltage on metal accessible part not protectively earthed) Additions to IEC 60601-1:2005 3rd Edition Patient leakage current is current that takes the following route: "metal accessible part not protectively ...
Page 25 1.6 Types of Leakage Current Measurement Total patient leakage current measurement Total patient leakage current is the total of all leakage current to or from patient connections of all the same type of applied parts (B-Type, BF-Type and CF-Type applied parts) simultaneously connected. When there are two or more patient connections that go to different functions and are not electrically con- nected together, the total patient leakage current for B-Type applied parts must be measured.
Page 26 1.6 Types of Leakage Current Measurement Protective conductor current measurement A protective conductor current measurement measures the electric current that flows through a protective earth conductor (grounding wire) during normal operating conditions. Like Earth leakage current, class II equipment does not have a protective earth wire and therefore does not require measurement of protective conductor current.
Page 27 1.6 Types of Leakage Current Measurement List of Leakage-Current Measurement Items Single- Normal Measurement fault (Description of fault) (Other conditions) condition condition Touch current Situation other than touch current Enclosure - Line (Enclosure - Line) is applicable 1. One wire in the power 1.
Page 28 1.6 Types of Leakage Current Measurement ST5540/ST5541 List of functions item ST5540 ST5541   Network A  Network B1 –  Network B2 –   Network C Network   Network D   Network E  ...
Page 29: Chapter 2 Instrument Labels
Instrument Labels Chapter 2 and Screens...
Page 30: Instrument Labels And Functions
1:1 volt- cover. age from terminal T3. Effective only when B1 or B2 (p. 37) network is selected. (only ST5540) 3. Terminal block (p. 75) Outputs voltage based on the power supplied to Input 110% of the rated voltage to [LINE IN] (p.
Page 31: 2.1 Instrument Labels And Functions
Used to connect the power cord provided. nect to E (earth) for [LINE IN]. Enables connection to earth during leakage current 2. Power source rating measurements. (only ST5540)  Marked with a black dot ( ) in the power line voltage (p.
Page 32: 2.1 Instrument Labels And Functions
2.1 Instrument Labels and Functions Side Panel 2. Stand 1. Handle Used to tilt the instrument. Used to carry the instrument. Take the following precautions to prevent electric shock accidents and damage to the instrument. • Use M3 screws to attach rack mount brackets after removing the feet. •...
Page 33: Screen Configuration Outline
2.2 Screen configuration outline 2.2 Screen configuration outline The following example shows screens that appear after selecting network A. (Screens for networks C to G look the same as the screen for network A only the network keys differ. Due to the larger number of measurement mode keys, selecting network B1 opens three initial screens and selecting B2 opens four initial screens.) Setting screen of...
Page 34 2.2 Screen configuration outline Shared measurement screen displays The following describes shared measurement screen displays. (Screen example : Earth leakage current measurement screen) Result of comparison between maximum value and Result of comparison between current measurement allowable value. value and allowable value. PASS Current measurement value is equal to or PASS...
Page 35 2.2 Screen configuration outline Key description Shared keys Clears the maximum value. Unless this key is pressed, the maximum value is not cleared even if measurement condi- tions are changed in the same measurement mode. Changing the measurement mode clears the maximum value. Displays the allowable value setting screen.
Page 36: About The Touch Panel
2.3 About the Touch Panel 2.3 About the Touch Panel The HiTESTER uses a touch panel for setting and changing all of the measurement conditions. Gently touch the black keys on the screen to make settings and selections. A key turns white and has a concave look when selected.
Page 37: Chapter 3 Setting
3.1 Power switch, breaker ON/OFF Setting Chapter 3 Preparations 3.1 Power switch, breaker ON/OFF Circuit breaker Power switch...
Page 38: Connecting The Power Cord 3
3.2 Connecting the Power Cord 3.2 Connecting the Power Cord Connecting the instrument power cord Before turning on the instrument, confirm that the voltage of the • power source matches the voltage specification indicated on the instrument's power connector ([AC IN]). (The voltage specification (100, 120, 220 or 240 V) ordered by the customer is marked with a black dot in the line voltage column on the rear panel.)
Page 39: Connecting The Power Cord Of The Equipment Under Test
3.2 Connecting the Power Cord Connecting the power cord of the equipment under test Preparation items : Power cord for equipment under test Isolation transformer (separately purchased) Confirm that the main power switch on the front panel of the main instrument and the circuit breaker are turned off.
Page 40 • The [LINE IN] and [AC IN] power supplies are isolated from each other. • Use the cable supplied with the ST5540 and ST5541 instruments to connect the equipment under test [LINE IN]. Do not connect any other electrical appli- ance to this inlet.
Page 41: Making Connections To Terminals S10, S12 And S13
3.2 Connecting the Power Cord Making connections to terminals S10, S12 and S13 Make sure that the connection to [LINE IN] is correct. Use the screws to secure the connection If the wrong connection has been made to [LINE IN], the E terminal may output the power supply voltage.
Page 42: Connecting Equipment Under Test To The Instrument
3.3 Connecting equipment under test to the instrument 3.3 Connecting equipment under test to the instrument The actual connection procedure will vary with the power supply of the equipment under test. A cord to connect the instrument and the equipment under test is not supplied. Use a power cord that suits the power supply of the equipment under test.
Page 43 3.3 Connecting equipment under test to the instrument Connecting wires to the terminal block Turn off the instrument and set the breaker to Off. Fit the right and left projecting por- "Turning Power Off" (p. 40) tions of the terminal block cover "3.1 Power switch, breaker ON/OFF"...
Page 44: Turning Power On And Off
3.4 Turning Power On and OFF 3.4 Turning Power On and OFF Turning Power On • Before turning on the instrument, confirm that the voltage of the power source matches the voltage specification indicated on the instrument's power connector ([AC IN]). (The voltage specification (100, 120, 220 or 240 V) ordered by the customer is marked with a black dot in the line voltage column on the rear panel.)
Page 45 3.4 Turning Power On and OFF Confirm that the circuit breaker is turned off. (If the instrument is turned on when the circuit breaker is On, the circuit breaker may be triggered.) Turn on the power switch (ON: ) on the front panel. The LCD shows the opening message.Then the wiring check screen appears.
Page 46: Turning Power Off
3.4 Turning Power On and OFF Turning Power Off Always turn off the power switch of equipment under test before turning off power of the instrument to avoid damaging the equipment under test. The instru- ment uses an internal relay for switching the power line to equipment under test and turning off the power switch of the instrument opens all lines and turns off the equipment under test.
Page 47: Pre-Test Inspection
3.5 Pre-Test Inspection Before using the instrument the first time, verify that it operates normally to ensure that no damage occurred during storage or shipping. If you find any damage, contact your dealer or Hioki representative. Pre-connection inspection Does any cable insulation appear damaged,...
Page 48 3.5 Pre-Test Inspection Fuse inspection (when using modes other than Earth leakage current and protective conductor current modes) The current detection circuit in the instrument contains a fuse. Should the fuse blow due to incorrect wiring or an over-current condition, the instrument may no longer be able to detect current. Before use, make sure that the fuse is not blown.
Page 49: Checking Measurement Frequency
3.5 Pre-Test Inspection Checking measurement frequency When network B2 is selected The frequency range setting of the instrument is 0.1 - 1 MHz allowing the user to select 0.1 Hz - 1 MHz or 15 Hz - 1 MHz. An 0.1 Hz - 1 MHz setting will slow down the response of internal circuits and increase measurement time.
Page 50 3.5 Pre-Test Inspection Connection/VA check screen Indicates the voltage of power supplied to [LINE IN]. Indicates the current consumption of the equipment under test. Indicates the power consumption. Measures voltage between the terminals of [LINE IN] to check the polarity. Indicates the voltages between phase L and terminal G and between phase N and terminal G on the termi- nal block.
Page 51 3.5 Pre-Test Inspection Check examples If the voltage check results in NG • Check the voltage of the power supply. • Check whether the circuit breaker is ON. • The internal fuse (power) may be blown. Check connections. The maximum allowed power supply voltage is 275 V. If the current check results in NG Reduce the current to 20 A or less.
Page 52 3.5 Pre-Test Inspection Polarity check results The wiring may not be configured for uninterrupted polarity switching. Check the wiring. • The grounding wire may be disconnected. • The power supply may be a floating power supply. • The power supply may be a single-phase, 3-wire power source.
Page 53: Chapter 4 Settings
Chapter 4 Settings The setup procedure differs with the measurement method (Manual/Automatic). Manual measurement : Perform the settings described from "4.1 Selecting a Network" (p. 48) to "4.8 Changing the Measurement Method (Auto/Manual)" (p. 67). Automatic measurement : Perform the settings described from "4.1 Selecting a Network" (p. 48) to "Setting the measuring time" (p. 73).
Page 54: Selecting A Network
4.1 Selecting a Network 4.1 Selecting a Network After the power switch of the HiTESTER is set to ON ( ), the initial screen appears. Press and then display the network select screen. Initial screen Press the to switch the network selection screen. Network select screen 2 Network select screen 1 After the desired network is selected, the initial screen appears.
Page 55: Selecting The Grounding Class Of Equipment Under Test
4.2 Selecting the Grounding Class of Equipment Under Test 4.2 Selecting the Grounding Class of Equipment Under Test Setting screen of equipment under test (when selecting network A, C, D, E, F or G) Initial screen Setting screen of equipment under test (when selecting network B1 or B2) On the initial screen, press the key to display the setting screen of the equip-...
Page 56: Registering An Equipment Name/Control Number
4.2 Selecting the Grounding Class of Equipment Under Test When the grounding class set for the equipment under test is changed, the con- dition settings on the measurement screen are initialized except for the allowable value factor. When the instrument is set to internally powered equipment, even if the breaker is turned On, the power supply to the equipment under test will be interrupted (grounding connection will also be interrupted).
Page 57: Selecting A Measurement Mode (Opens The Measurement Screen)
4.3 Selecting a Measurement Mode (opens the measurement screen) 4.3 Selecting a Measurement Mode (opens the measurement screen) After a measurement mode is selected on the initial screen, the measurement screen appears. • The number of measurement modes displayed on the screen varies depend- ing on the network and class settings selected.
Page 58 4.3 Selecting a Measurement Mode (opens the measurement screen) Selectable measurement modes When selecting network A Grounding class Internally powered Class-I equipment Class-ll equipment equipment Measurement mode Earth leakage current  – – Enclosure - Earth leakage current   ...
Page 59: 4.3 Selecting A Measurement Mode
4.3 Selecting a Measurement Mode (opens the measurement screen) When selecting network B1 Internally powered Grounding class Class-I equipment Class-ll equipment equipment Type Type Type Type Type Type Type Type Type Measurement mode applied part    Earth leakage current –...
Page 60: Setting The Measurement Range (Auto/Hold)
4.4 Setting the Measurement Range (Auto/Hold) 4.4 Setting the Measurement Range (Auto/Hold) Select auto range for automatic range selection. Selecting hold range allows the user to specify one of four ranges. When using the Hold range, if you cannot have the faintest idea about the current type and size, please measure it by "AC+DC"...
Page 61 4.4 Setting the Measurement Range (Auto/Hold) On the measurement screen, press to display the measurement range setting screen. Select a measurement range. Sets the current range to the Auto (automatic) range. Sets the current range to the Hold (fixed) range. Selecting the Hold range displays a set of range setting keys.
Page 62 4.4 Setting the Measurement Range (Auto/Hold) Range of indication depends on selected unit of indication. "7.1 Setting the Mode (To use the instrument as a voltmeter)" (p. 117) For details of accuracy guaranteed range: "10.4 Accuracy" (p. 258) "7.10 Setting Indication Unit" (p. 131) When selecting network A, B1, B2, C, E, or G (Measurement of AC, DC, or AC+DC) 500.0 A...
Page 63 4.4 Setting the Measurement Range (Auto/Hold) Ammeter mode/unit of indication : mA (HOLD) range of indication Sets the unit of current measurement to mA. "7.1 Setting the Mode (To use the instrument as a voltmeter)" (p. 117) For details of accuracy guaranteed range:"10.4 Accuracy" (p. 258) "7.10 Setting Indication Unit"...
Page 64 4.4 Setting the Measurement Range (Auto/Hold) About Peak Over "!" • When measuring Hold (fixed) range setting, if a por- tion of measuring current goes over the input allowable range for the circuit, "!" together with "FAIL" may be displayed on measuring screen.
Page 65: Setting The Filter
4.5 Setting the Filter 4.5 Setting the Filter (when selecting network A, B1, B2 or C) Turn the filter for the measurement network ON and OFF or change the setting of the filter. In manual measurement, the measurement value can be checked while switching the filter ON and OFF. When selecting network A , B1 or B2 The filter is switched ON and OFF.
Page 66 4.5 Setting the Filter When selecting network C On the measurement screen, press display the network filter setting screen. Change the setting of the filter for the network. Sets a network compatible with perception/reaction. Sets a network compatible with abandonment. Sets the body impedance network.
Page 67: Setting The Allowable Value
4.6 Setting the Allowable Value 4.6 Setting the Allowable Value Set the allowable value (upper-limit leakage current value) for the measurement value and maximum value. According to the status (normal condition, single-fault condition) of the equipment under test, two values can be set.
Page 68 4.6 Setting the Allowable Value On the measurement screen, press display the allowable value setting screen. Press to activate the allowable value setting condition for normal condition. Enter a numeric value by using numeric keys through , and To correct an input error, press the Clear ) key, then reenter the input.
Page 69: Turning Lower Limit Values On And Off For Specific Leakage Current Measurements
4.6 Setting the Allowable Value  • The allowable value setting range is from 5 A to 50 mA.  If a value less than 5 A is entered, the setting is automatically adjusted to "5  A." If a value greater than 50 mA is entered, the setting is automatically adjusted to "50 mA."...
Page 70: Selecting The Type Of Target Current
4.7 Selecting the Type of Target Current 4.7 Selecting the Type of Target Current On the measurement screen, press to display the target current setting screen. Select the type of target current. For AC measurement For DC measurement For AC + DC measurement For AC peak measurement Auxiliary current setting screen Press...
Page 71 4.7 Selecting the Type of Target Current Selectable target currents Network Measurement mode Earth leakage current AC+DC AC+DC AC+DC AC+DC ACPeak ACPeak ACPeak  Enclosure - Line leakage current AC+DC AC+DC AC+DC AC+DC  ACPeak ACPeak ACPeak Enclosure - Earth leakage current AC+DC AC+DC...
Page 72 4.7 Selecting the Type of Target Current Network Measurement mode  Patient leakage current  (external voltage on metal accessible part – – – AC+DC not protectively earthed)  Total patient leakage current – – –  (Patient connection - Earth) ...
Page 73: Changing The Measurement Method (Auto/Manual)
4.8 Changing the Measurement Method (Auto/Manual) 4.8 Changing the Measurement Method (Auto/Manual) (1) Manual measurement The measurement value can be checked while changing the target current, filter setting, power supply polarity, and equipment status. (2) Automatic measurement The power supply polarity and equipment status are automatically switched during measure- ment.
Page 74: Setting Automatic Measurement Items
4.8 Changing the Measurement Method (Auto/Manual) Setting automatic measurement items The selected network, class and measurement mode determine what measurement items will appear. Appendix2 "List of instrument status, other test condition and special test condition"(p.A4) On the automatic measurement setting screen, press to display the automatic measure- ment item setting screen.
Page 75 4.8 Changing the Measurement Method (Auto/Manual) Line phase in leakage current measurement between enclosure and line Shown when network A, C, D, E, F or G is selected. Conducts measurement with voltage of the L (live) side of power supplied to [LINE IN]. Conducts measurement with voltage of the N (neutral) side of power supplied to [LINE IN].
Page 76: Setting The Measurement Delay (Delay Time)
4.8 Changing the Measurement Method (Auto/Manual) Setting the measurement delay (delay time) On the automatic measurement screen, press to display the measurement delay time setting screen. Automatic measurement item setting screen Measurement delay time setting screen Increments the numeric value. Return to Automatic Decrements the numeric value.
Page 77 4.8 Changing the Measurement Method (Auto/Manual) (a): Setting the time for disconnecting one wire Use this function to set the time of disconnection of one wire after the previous measurement ends and before continuing with the next one when the next measurement is "disconnec- tion of one wire in power cord."...
Page 78 4.8 Changing the Measurement Method (Auto/Manual) (c): Setting the time to start measurements not involving polarity switching Use this function to set the time for the start of the next mea- surement under conditions other than (a) and (b). Set a delay for measurements that does not involve polarity switching.
Page 79: Setting The Measuring Time
4.8 Changing the Measurement Method (Auto/Manual) Setting the measuring time On the automatic measurement screen, press to display the measurement time setting screen. Set the measuring time. (1 sec. to 5 min. (in 1 sec. increments)) Automatic measurement item setting screen Measuring time setting screen Increments the numeric value.
Page 80 4.8 Changing the Measurement Method (Auto/Manual)
Page 81: Chapter 5 Measurement Preparations
5.1 Connecting the Test Lead Measurement Chapter 5 Preparations 5.1 Connecting the Test Lead When a measurement mode is selected, the measuring terminals (T1, T2, and T3) to be used for mea- surement are indicated at the top of the screen. Connect the test leads based on the indications displayed.
Page 82 5.1 Connecting the Test Lead When selecting network B1 Internally powered equip- Class-I equipment Class-II equipment ment Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF – – – Earth leakage current Normal Enclosure - Earth Fault/...
Page 83: Using L2200 Test Lead
5.1 Connecting the Test Lead Using L2200 Test Lead To avoid the risk of electric shock, do not touch the tips of test leads con- nected to terminals T1, T2, and T3. In some measurement modes, high voltage is output from the terminals. Do not touch any part of the test lead beyond the finger barrier...
Page 84: Using Alligator Clips
5.1 Connecting the Test Lead Using Alligator Clips (when using two or three test leads) Position the test lead on the enclosure or terminal of the equipment under test to measure leakage cur- rent. When using two or three lead wires, alligator clips may be used to ensure a secure connection. Detach the pin lead from the tip of each L2200 Test Lead and insert the included alligator clip.
Page 85: Chapter 6 Measurements
6.1 Making manual measurements Chapter 6 Measurements 6.1 Making manual measurements Free-run measurements start when measurement is set to "Manual" in the measurement screen. Measurement conditions can be changed during ongoing measurements. (Manual measurements cannot be made when an internal class is selected.) Pre-test inspection Perform a pre-test inspection.
Page 86 (When selecting network B1.) The "N" key indicates positive phase and "R" nega- tive phase. SW status (only network B2 on ST5540) Pressing in the manual measurement setting screen opens the switch setting screen. SW for connecting functional earth terminal and power supply system for measurement.
Page 87 6.1 Making manual measurements Changing measurement current The indication varies depending on the network, class setting, and measurement mode selected. Appendix2 "List of instrument status, other test condition and special test condition" (p. A4) On the measurement screen, press to display the auxiliary current setting screen.
Page 88: Making Automatic Measurements
6.2 Making automatic measurements 6.2 Making automatic measurements Power supply polarity and equipment status are automatically switched during measurements. The user can select the measurement items that should be switched and set the measurement time. Pre-test inspection Perform a pre-test inspection. "3.5 Pre-Test Inspection"...
Page 89: Measurement Examples
6.3 Measurement examples 6.3 Measurement examples Earth leakage current measurement Connect the instrument and the equipment under test. "3.3 Connecting equipment under test to the instrument" (p. 36) During manual measurements, measurement starts upon returning to the Earth leakage current measurement screen.
Page 90 6.3 Measurement examples Touch current measurement Enclosure - Earth measurement • Conduct leakage current measurement between enclosure and enclosure using two ungrounded locations on the enclosure. • The terminal block is not used for internally powered equipment, although power must be supplied to [LINE IN] by a grounded two-plug power cord. •...
Page 91 6.3 Measurement examples When network B1 or B2 (Other test condition, Special test condition) is selected and measurement conducted with 110% voltage application • Note that when is pressed in automatic measurement mode, the instru- ment generates high voltage without displayed on the screen.
Page 92 6.3 Measurement examples Enclosure - Enclosure measurement • Conduct leakage current measurement between enclosure and enclosure using two ungrounded locations on the enclosure. • The terminal block is not used for internally powered equipment. • When the protective grounding wire is disconnected (single fault), a protec- tively earthed enclosure is handled as a non-protectively earthed enclosure.
Page 93 6.3 Measurement examples When network B1 or B2 (Other test condition, Special test condition) is selected and measurement conducted with 110% voltage application • Note that when is pressed in automatic measurement mode, the instrument generates high voltage without displayed on the screen. •...
Page 94 6.3 Measurement examples Enclosure - Line measurement* only when selecting a network other than B1 or B2 • Note that when is pressed in automatic measurement mode, the instrument generates high voltage without displayed on the screen. • To avoid the risk of electric shock when a test lead is connected to the T2 terminal, do not touch the part of the test lead that is beyond the finger barrier.
Page 95 6.3 Measurement examples Application of leakage current measurement between enclosure and line An equipment under test generating a voltage that exceeds rated capacity cannot be connected to the outlet of the instrument (or the terminal block), but the T1 and T2 terminals can be used to measure touch current (enclosure - line).
Page 96: Patient Leakage Current Measurement* (Patient Connection - Earth)
6.3 Measurement examples Patient leakage current measurement (Patient connection - Earth) only when selecting a network B1 or B2 (B1 selected, patient leakage current I) Measuring the class-I equipment and class-II equipment Connect the instrument and the equipment under test. "3.3 Connecting equipment under test to the instrument"...
Page 97 6.3 Measurement examples Measuring the internally powered equipment 1 Press in the measurement screen and select under measured terminal. Connect test leads to terminals T1 and T2. Place the tip of test lead connected to the T1 ter- minal on the enclosure of the equipment under test.
Page 98 6.3 Measurement examples Measuring the internally powered equipment 2 Press in the measurement screen and select under measured terminal. Connect test leads to terminals T2. Position the tip of the test lead connected to termi- nal T2 on the applied part of the equipment under test.
Page 99: Patient Leakage Current Measurement* (External Voltage On A Sip/Sop)
6.3 Measurement examples Patient leakage current measurement (external voltage on a SIP/SOP) only when selecting network B1 or B2 and providing equipment with a Type B applied part (B1 selected, patient leakage current II) • Note that when is pressed in automatic measurement mode, the instrument generates high voltage without displayed on the screen.
Page 100 6.3 Measurement examples Connect the instrument and the equipment under test. "3.3 Connecting equipment under test to the instrument" (p. 36) Connect test leads to terminals T2 and T3. Position the tip of the test lead connected to terminal T2 on the applied part of the equipment under test.
Page 101: Patient Leakage Current Measurement* (External Voltage On A Specific F-Type Applied Part)
6.3 Measurement examples Patient leakage current measurement (external voltage on a specific F-type applied part) only when selecting network B and providing equipment with a Type BF or Type CF applied part (B1 selected, patient leakage current III) • Note that when is pressed in automatic measurement mode, the instrument generates high voltage without displayed on the screen.
Page 102 6.3 Measurement examples Connect the instrument and the equipment under test. "3.3 Connecting equipment under test to the instrument" (p. 36) Connect a test lead to terminal T2. Position the tip of the test lead on the applied part of the equipment under test. During manual measurement, is available upon return to the measurement screen.
Page 103: Patient Leakage Current Measurement* (External Voltage On Metal Accessible Part Not Protectively Earthed)
6.3 Measurement examples Patient leakage current measurement (external voltage on metal accessible part not protectively earthed) only when selecting a network B2 • Note that when is pressed in automatic measurement mode, the instrument generates high voltage without displayed on the screen. •...
Page 104 6.3 Measurement examples Connect the instrument and the equipment under test. "3.3 Connecting equipment under test to the instrument" (p. 36) Connect test leads to terminals T2 and T3. Position the tip of the test lead connected to terminal T2 on the applied part of the equipment under test.
Page 105 6.3 Measurement examples Patient auxiliary current measurement only when selecting a network B1 or B2 The terminal block is not used for internally powered equipment. Connect the instrument and the equipment under test. "3.3 Connecting equipment under test to the instrument" (p. 36) Connect test leads to terminals T1 and T2.
Page 106: Total Patient Leakage Current Measurement* (Patient Connection - Earth)
6.3 Measurement examples Total patient leakage current measurement (Patient connection - Earth) only when selecting a network B2 Measuring the class-I equipment and class-II equipment Connect the instrument and the equipment under test. "3.3 Connecting equipment under test to the instrument" (p. 36) Connect a test lead to terminal T2.
Page 107: Free Current Measurement (Enclosure - Enclosure)
6.3 Measurement examples Free current measurement (Enclosure - Enclosure) Use the selected network to select any current range (AC, DC, AC + DC, AC peak) and any measure- ment range (50 A, 500 A, 5 mA, 50 mA). • Conduct leakage current measurement between enclosure and enclosure using two ungrounded locations on the enclosure.
Page 108: Saving Measurement Data (As Required)
6.4 Saving Measurement Data (As required) 6.4 Saving Measurement Data (As required) Use the steps below to save measurement data (maximum values) in internal memory. When measurements end, saved data can be confirmed in the save data reference screen. "Checking Saved Measurement Data" (p. 104) Manual measurements On the measurement screen, press to dis-...
Page 109 6.4 Saving Measurement Data (As required) Automatic measurements When automatic measurements end, a list of measurement appears as shown on the screen. To save this data, enter a name and No. and press When a remote command is received (and remote status is engaged) during automatic mea- surement, the automatic measurement result screen does not appear.
Page 110: Checking Saved Measurement Data
6.4 Saving Measurement Data (As required) Checking Saved Measurement Data Press on the initial screen to display the system screen. Press to display the measurement data reference screen. This screen displays the measurement data saved by using the measurement screen. It also allows the deletion and printing of measurement data (when the optional 9442 PRINTER is con- nected).
Page 111: Selecting Saved Measurement Data
6.4 Saving Measurement Data (As required) Selecting Saved Measurement Data Press to switch the mode used for the data unit. On the sample screen, the mode changes in the fol- lowing order:    Earth Leak TC(En-En) PL(Pa-Ea) TPL(Pa-Ea). Press to return to the system screen.
Page 112: Saving Measurement Conditions (Panel Save Function) (As Required)
6.5 Saving Measurement Conditions (Panel Save Function) (as required) 6.5 Saving Measurement Conditions (Panel Save Function) (as required) Up to 30 panels of measurement condition data can be saved in internal memory. Saved measurement conditions can be read at a later date. See"7.2 Panel Load(Loading Saved Measurement Conditions)"...
Page 113 6.5 Saving Measurement Conditions (Panel Save Function) (as required) On the measurement screen, press to dis- play the screen for selecting the data to be saved. Press to display a screen for selecting panel numbers where measurement conditions are saved. Select a panel number for saving data.
Page 114: Printing Measurement Data (As Required)
Change the settings of the software dip switches (DIP SW) to use the 9442 for the ST5540 or ST5541. • The 9442 is shipped with the function settings for use with the Hioki 3166 Clamp on power HiT- ESTER. Before using, always change the settings of the DIP switches.
Page 115 6.6 Printing Measurement Data (as required) For switches one to eight of the DIP SW1, set the ON/OFF status as shown in the table below. To set to ON, press the ON LINE button once and to set to OFF, press the FEED button once. The setting is printed out after the ON LINE FEED...
Page 116 Connect the printer Connect the 9442 Printer to the RS-232C connector of the HiTESTER. Before connection, complete any necessary settings on both the printer(p. 108) and the ST5540 or ST5541(p. 134). To avoid electric shock, turn off the power to all devices before plugging or unplugging any cables or peripherals.
Page 117 6.6 Printing Measurement Data (as required) Printing Measurement data (maximum values) can be printed out. • The 9442 Printer (option) is required for printing measurement data. • The key is displayed during printing.To abort printing, press • Set the interface to "Printer" before printing. "7.12 Interface Setting (For Communication and Printing)"...
Page 118 6.6 Printing Measurement Data (as required) Print example Date Equipment name Control number Grounding class and applied part Network Measurement mode Filter Allowable value(Upper limit) Allowable value(Lower limit) Maximum value Judgement result Power supply polarity Equipment under test status Voltage applied status *Network B1 or B2 only Description of printed information Item...
Page 119 6.6 Printing Measurement Data (as required) Item Explanation Printed item Explanation Mode Measurement EARTH Earth leakage current mode ENCLOSURE1 Leakage current between enclosure and earth ENCLOSURE2 Leakage current between enclosure and enclosure ENCLOSURE3 Leakage current between enclosure and line PAUXILIARY Patient auxiliary current PATIENT1 Patient leakage current I...
Page 120 6.6 Printing Measurement Data (as required) Item Explanation Printed item Explanation  Lower Value Lower limit value 50.0 Lower allowable limit value*  Max Value Maximum value (259.9 – Judgement Judgement result PASS Equal to or less than the allowable value FAIL Greater than the allowable value Equal to or less than the Lower limit value.
Page 121: Chapter 7 Instrument System Settings
Instrument System Chapter 7 Settings...
Page 122: System Screen Configuration
System Screen Configuration System screen1 System screen2 Mode Setting 10. Polarity Change For setting the unit of measurement data and setting Enables the user to set power on polarity switching. the instrument for use as a voltmeter. (p. 126) (p. 117) 11.
Page 123: Setting The Mode (To Use The Instrument As A Voltmeter)
7.1 Setting the Mode (To use the instrument as a voltmeter) 7.1 Setting the Mode (To use the instrument as a voltmeter) Press on the initial screen to display the system screen. Press to display the mode setting screen. Select a mode. (The leakage current tester mode is the default setting.) Mode setting screen...
Page 124 7.1 Setting the Mode (To use the instrument as a voltmeter) When mode is selected • The maximum input voltage is DC 50 V/AC 50 Vrms. Attempting to mea- sure voltage in excess of the maximum input could destroy the instru- ment and result in personal injury or death.
Page 125 7.1 Setting the Mode (To use the instrument as a voltmeter) When mode is selected Connect the instrument and the equipment under test. "3.3 Connecting equipment under test to the instrument" (p. 36) Selecting protective conductor ammeter in the mode setting screen opens the protective conductor current measurement screen.
Page 126: Panel Load(Loading Saved Measurement Conditions)
7.2 Panel Load(Loading Saved Measurement Conditions) 7.2 Panel Load(Loading Saved Measure- ment Conditions) Measurement conditions saved by using the measurement screen can be loaded (read). The following lists the saved measurement conditions. Measurement items/target current mode/network/measurement range/filter setting/ allowable value (normal condition, fault condition)/fault condition setting/power supply polarity/ measurement class/applied part condition/equipment name/control number/measurement items for automatic measurement/measuring time/measurement delay time Press...
Page 127: Initializing The Instrument
7.3 Initializing the Instrument 7.3 Initializing the Instrument Press on the initial screen to display the system screen. Press to display the initialization screen. After an initialization condition is selected, a confirmation screen appears. Deletes all data including measurement conditions and measurement data. The date and time settings are not deleted.
Page 128 7.3 Initializing the Instrument When "Default condition" is selected Press to reset the system (Perform system reset.). The network select screen is displayed. Press to return to the initialization screen without executing system initialization. When "Initialization of all measurement data" is selected Press to delete all saved measurement data.
Page 129: Setting The Display Language
Select to determine whether or Contact your dealer or Hioki representative. not this check be performed every time the power is turned on. Press to return to the system screen.
Page 130: Self-Test
If the screen shows "RAM TEST NG!", the instrument is malfunctioning. Contact your dealer or Hioki representative. When is selected The screen shows 12 black keys. Press these keys one by one. When a key is pressed, it turns white. When all the keys are pressed one after another, display returns to the self- test screen.
Page 131 Press to activate the buzzer. Press to stop the buzzer. If the buzzer does not sound, the instrument requires repair. Contact your dealer or Hioki representative. Press to return to the self-test screen. When is selected DANGER lamp and the LCD backlight flash alternately.
Page 132: Power On Polarity Switching (To Keep Equipment Under Test On During Polarity Switching)
7.7 Power On Polarity Switching (to keep equipment under test on during polarity 7.7 Power On Polarity Switching (to keep equipment under test on during polarity switching) • When the power on polarity switching function is used, be sure not to connect the neutral wire on the secondary side of the isolation trans- former to ground.
Page 133: Setting Power On Polarity Switching
7.7 Power On Polarity Switching (to keep equipment under test on during polarity Setting Power On Polarity Switching Check that the isolation transformer is correctly connected. On the initial screen, press to display the system screen. Press and set power on polarity switching to On. To go directly to a leakage current test without performing relay check 2, press to continue to tests.
Page 134: Relay Check 2
7.7 Power On Polarity Switching (to keep equipment under test on during polarity Relay check 2 Do not connect the power cord to the terminal block on the rear panel. Since turning the relay On supplies power from front terminal block and the outlet, a power cord connection to the rear terminal block can cause electric shock.
Page 135: Auto Measure Setting (Set Instrument Status)
7.8 Auto Measure Setting (set instrument status) 7.8 Auto Measure Setting (set instrument status) When setting “Last Measurement State” When setting Auto Measure Setting is "Last Measurement State"(default), the instrument stores the final state (fault condition etc.). Example: If disconnection of one wire in the power cord is the final test item of the automatic measurement, no power is sup- plied to the device under test after the completion of an automatic measurement.
Page 136: Setting Lower Limit Values (Factor)
7.9 Setting Lower Limit Values (factor) 7.9 Setting Lower Limit Values (factor) Press on the initial screen to display the system screen. Press to display the beep sound setting screen. Enter a numeric value by using numeric keys through Measurement range Lower limit value: 5% to 99% To correct an input error, press the Clear ) key, then reenter the input.
Page 137: Setting Indication Unit
7.10 Setting Indication Unit 7.10 Setting Indication Unit In LC Meter mode, the unit of measurement data can be set. Leakage current standards specify current criteria in "mA." When "mA" is selected, measurement values in "A" are converted to "mA" values for easy judgement of test results. Select the unit of measurement data indication.
Page 138: Setting Date And Time
7.11 Setting Date and Time 7.11 Setting Date and Time Press on the initial screen to display the system screen. Press to display the date/time setting screen. Set the date and time. From left to right, the displayed setting keys are assigned to year, month, day, hours, and minutes. Press to return to the system screen.
Page 139: Interface Setting (For Communication And Printing)
7.12 Interface Setting (For Communication and Printing) 7.12 Interface Setting (For Communication and Printing) Press on the initial screen to display the system screen. Press to display the interface setting screen. Select an interface. Sets the interface connection destination to USB.
Page 140 7.12 Interface Setting (For Communication and Printing) When "RS-232C" is selected The communication condition is fixed. For details of the method of using the interface: "Chapter 8 Controlling the Instrument From a Computer (RS-232C, USB interface)" (p. 139) Press to return to the system screen. When "Printer"...
Page 141: Setting The Beep Sound
7.13 Setting the Beep Sound 7.13 Setting the Beep Sound Press on the initial screen to display the system screen. Press to display the beep sound setting screen. Enter beep sound settings. Press to return to the system screen. Setting beep sound for key entry Generates a beep sound when key entry is made.
Page 142: Setting The Backlight
7.14 Setting the Backlight 7.14 Setting the Backlight The backlight of the LCD panel on the front panel can be set to Constant ON or Auto OFF. When a PC is connected for measurement control and the instrument display is not used, the backlight is turned off to prolong the service life of LCD parts and save energy.
Page 143 7.14 Setting the Backlight When "Constant ON" is selected Press to return to the system screen. The backlight has been set to "Constant ON" by default. When "Auto OFF" is selected Set a desired time for the backlight auto OFF function. (1 to 30 min.
Page 144 7.14 Setting the Backlight...
Page 145: Chapter 8 Controlling The
Controlling the Instrument From a Computer (RS-232C, Chapter 8 USB interface) This chapter contains information relating to the RS-232C and USB interfaces, and uses the fol- lowing symbols to identify which information is relevant to each interface. Sections without these symbols pertain to both interfaces. RS-232C only USB only Before Use...
Page 146: St5540/St5541 Remote Interface Overview (Usb Connection)
8.1 ST5540/ST5541 Remote Interface Overview (USB connection) 8.1 ST5540/ST5541 Remote Interface Over- view (USB connection) Figure 1 shows a block diagram of the ST5540/ST5541 remote interface. Personal Computer (PC) ST5540/ST5541 Communication terminal software or application software Central processing unit (CPU)
Page 147: Connect And Be Sure To Tighten The Screws On The Connector
8.2 Connect and be sure to tighten the screws on the connector 8.2 Connect and be sure to tighten the screws on the connector • Always turn both devices OFF when connecting and disconnecting an interface connector. Otherwise, an electric shock accident may occur. •...
Page 148 8.2 Connect and be sure to tighten the screws on the connector When connecting the HiTESTER and PC/AT (DOS/V) Use a crossing cable comprising two D-sub 9Pin female connectors. Cross connection D-sub 9pin female D-sub 9pin female ST5540/ST5541 PC/AT Pin No. Pin No. Recommended cable: HIOKI 9637 RS-232C CABLE (1.8 m)
Page 149: Installation And Operation Procedures
Execute [Prolific_DriverInstaller.exe] on the supplied CD-ROM. Follow the instructions that appear on the screen to complete the installation. Turn on the ST5540/ST5541 and connect it to the computer using an optional USB cable. A COM port is automatically assigned to the USB port.
Page 150: Specifications Of Rs-232C
8.2 Connect and be sure to tighten the screws on the connector Specifications of RS-232C Transfer system Communication : Full duplex Synchronization : Start-stop synchronization Baud rate 9600 bps Data length 8 bits Parity None Stop bit 1 bit Message terminator Receiving data : CR+LF, CR (delimiter)
Page 151: Setting Communication Conditions On The Hitester
8.3 Setting Communication Conditions on the HiTESTER 8.3 Setting Communication Conditions on the HiTESTER Setup Procedure Refer to"7.12 Interface Setting (For Communication and Printing)" (p. 133) to perform [RS-232C] or [USB] setup. Display screen During communications, the instrument is in remote status and is avail- able to cancel remote status.
Page 152: Command Message Description
Messages are divided into program messages, which are sent to the HiT- ESTER from the PC, and response messages, which are sent to the PC from the HiTESTER. Program messages ST5540 or ST5541 Response messages The message system has the following hierarchy. Command messages...
Page 153 8.4 Command Message Description Command The names of commands for the HiTESTER are as far as possible mne- monic. Furthermore, all commands have a long form, and an abbreviated Syntax short form. In command references in this manual, the short form is written in upper case letters, and then this is continued in lower case letters so as to con- stitute the long form.
Page 154 8.4 Command Message Description Message The HiTESTER supports the following message terminators. Terminators • CR • CR+LF The following response message terminators can be selected depending on the interface setting. • CR and LF For details of the method of setting an interface : •...
Page 155 8.4 Command Message Description Data Formats The main instrument uses character string data and decimal numeric data, and the type used varies according to the command in question. (1) Character data Character string data must always begin with an alphabetic character, and the following characters can be either alphabetic characters or numerals.
Page 156 8.4 Command Message Description Abbreviation of When several compound commands have a common head portion, for example :CONFigure:CONDition :CONFigure:POLarity Compound then, when and only when writing them directly following on from one Commands another, this common portion ( :CONFigure: in this example) can be omitted from each command.
Page 157: Output Queue And Input Buffer
8.4 Command Message Description Output Queue and Input Buffer Output Queue Response messages accumulate in the output queue and are read out as data and cleared by the controller. The output queue is also cleared in the following circumstances : When the power is turned off and turned on again.
Page 158: Event Registers
8.4 Command Message Description Event Registers Standard event status register (SESR) The standard event status register is an 8-bit register. RS-232C can read this register to learn instrument status. The standard event status register is cleared in the following situations: When a command is received.
Page 159: Initialization Items
8.5 Initialization Items Event status registers specific to the HiTESTER (ESR0) An event status register has been provided to manage instrument events. The event status registers are each 8-bit registers. It is possible to determine the status of the instrument by reading these regis- ters.
Page 160: Message Reference
8.6 Message Reference Message Reference • Any typographical mistakes in the message will result in a command error. • Asterisk (*) indicates data applies only to ST5540. Common Messages Messages Explanation page Clears event registers and status byte registers (p. 163)
Page 161 8.6 Message Reference Network Messages Explanation Ref page Sets the network (p. 223) :NETWork Queries the network (p. 223) :NETWork? Measurement mode Messages Explanation Ref page Sets the measurement mode (p. 221) :MODE Queries the measurement mode (p. 221) :MODE? Measurement method Messages Explanation...
Page 162 8.6 Message Reference Messages Explanation Ref page Queries the allowable value (lower limit) On/Off (p. 186) :CONFigure :COMParator:LOWer? Sets the allowable value (p. 187) :CONFigure:COMPara- (lower limit: during AC measurements) On/Off. tor:LOWerAC Queries the allowable value (p. 187) :CONFigure:COMPara- (lower limit: during AC measurements) On/Off. tor:LOWerAC? Sets the allowable value (p.
Page 163 8.6 Message Reference Messages Explanation Ref page Other manual measurements : Queries the application of (p. 192) :CONFigure 110% of rated voltage :OTHer? Specific manual measurements : Sets the application of 110% (p. 197) :CONFigure of rated voltage :SPECial Specific manual measurements : Queries the application of (p.
Page 164 8.6 Message Reference Messages Explanation Ref page Stops automatic measurement (p. 224) :STOP Measurement data Messages Explanation Ref page Queries the measurement value (p. 210) :MEASure? Queries the maximum value after automatic (p. 211) :MEASure:AUTO? measurement Queries the maximum value (p.
Page 165 8.6 Message Reference Protective conductor ammeter mode Messages Explanation Ref page Sets the measurement current (p. 195) :CONFigure:PCC (protective conductor ammeter) Queries the measurement current (p. 195) :CONFigure (protective conductor ammeter) :PCC? Sets current range (protective conductor ammeter) :CONFig- (p. 195) ure:PCC:RANGe Queries current range (protective conductor ammeter) (p.
Page 166 8.6 Message Reference Messages Explanation Ref page Sets the date (p. 227) :SYSTem:DATE Queries the date (p. 227) :SYSTem:DATE? Queries the content of a panel (p. 229) :SYSTem:FILE? Sets the panel name (p. 234) :SYSTem:FILE:NAME Queries the panel name (p. 234) :SYSTem:FILE:NAME? Sets the frequency range (p.
Page 167 8.6 Message Reference Messages Explanation Ref page Queries the time (p. 241) :SYSTem:TIME? Sets the unit of current measurement (p. 242) :SYSTem:UNIT Queries the unit of current measurement (p. 242) :SYSTem:UNIT?
Page 168: Command Message Description
Describes important notes Note Use this command after executing the com- :MODE mand to activate the measurement mode. regarding use of the command. "Command" is displayed only when the note is related to command. Command, Query Response ST5540 or ST5541...
Page 169: Common Messages
No header is prefixed to the response message. Example Query *IDN? Response HIOKI,ST5540,0,V1.00 The equipment ID is "HIOKI, ST5540, 0, 1.00 (software version)." (The model name for ST5541 is ST5541.) Error If the response message exceeds the output queue size, a query error occurs.
Page 170 8.7 Command Message Description Restores the default settings (factor settings) Syntax Command *RST Function Command nitializes the instrument settings. The initial screen appears after initialization is completed. Same as specifying with HiTESTER initialization command :SYS- Tem:RESet Example Command *RST Initializes the instrument settings. Error Any data following a command results in a command error.
Page 171: Specific Commands
8.7 Command Message Description Specific commands Queries the automatic measurement completion Syntax Query :AMC? Response <numerical value> <numerical value> = 0/1 (NR1) 0: In automatic measurement 1: Automatic measurement completed Function Query Returns automatic measurement condition as a numeric value. Example Query :AMC?
Page 172 Measurement modes : Enclosure - Line leakage current Measurement method : Manual measurement When application line setting is an internal contact 3. When network B1 is selected (only ST5540) Measurement modes : Enclosure - Earth leakage current Enclosure - Enclosure current...
Page 173 8.7 Command Message Description Sets and queries the measurement method (automatic/manual) Syntax Command :CONFigure:AUTO <characters> Query :CONFigure:AUTO? Response <characters> <characters> = ON/OFF ON : Automatic OFF : Manual Function Command Sets the measurement method. When set to Auto, measurement can be started by any of the following: on the measurement screen 2.
Page 174 8.7 Command Message Description Queries the type and setting of automatic measurement Numerical value1 bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 Single-fault Single-fault Single-fault Single-fault condition condition condition condition Application Application Disconnec- Negative Positive...
Page 175 8.7 Command Message Description Queries the type and setting of automatic measurement Note :MODE • Use this command after executing the command to activate the mea- surement mode. • Depending on the equipment under test settings and measurement mode, the settable power supply polarity and the status of equipment under test vary.
Page 176 8.7 Command Message Description Numerical value2 Explanation Enclosure - Earth leakage current Leakage current Item Enclosure - Enclosure Earth leakage current between enclosure leakage current and line Free current (only network A) Other test condition bit0 :Application of 110% voltage(none) Other test condition bit1 :Application of 110%...
Page 177 8.7 Command Message Description When network C or G is selected Numerical value1 Explanation Touch current : Item Touch current : Enclosure - Earth Earth leakage current Enclosure - Line Touch current : Enclosure - Enclosure bit0 Normal condition Set at least one of bits 0 and 1 to 1.
Page 178 8.7 Command Message Description Numerical value2 Explanation Touch current : Item Touch current : Enclosure - Earth Earth leakage current Enclosure - Line Touch current : Enclosure - Enclosure Other test condition bit0 :Application of 110% voltage (none) Other test condition bit1 :Application of 110% voltage (Positive phase)
Page 179 8.7 Command Message Description When network B1 is selected Numerical value1 Explanation Enclosure - Earth Patient auxiliary Patient leakage leakage current Item Earth leakage current current II Enclosure - Enclosure current Patient leakage Patient leakage leakage current current I current III Free current bit0 Normal condition...
Page 180 8.7 Command Message Description Numerical value2 Explanation Enclosure - Earth Patient auxiliary Patient leakage Item Earth leak- leakage current current current II age current Enclosure - Enclosure Patient leakage Patient leakage leakage current current I current III Other test condition: bit0 Application of 110% voltage(none)
Page 181 8.7 Command Message Description When network B2 is selected Numerical value1 Explanation Item Normal least bit0 condition one of bits 0 and 1 to 1. Single-fault Equipment condition: other than Disconnec- bit1 class I tion of one Set at least one of bits 0 to 2 to 1. bit2 cannot be equipment wire in power set for class II equipment.
Page 182 8.7 Command Message Description Explanation Item bit7 Not used Set to 0. bit8 Set at least one of bits 8 and 9 to bit9 Application bit10 of line voltage L Application Set all bits to 0. Set all bits to 0. bit11 of line voltage N...
Page 183 8.7 Command Message Description Numerical value2 Explanation Item Other test condition bit0 :Application of 110% volt- age(none) Other test condition :Application of Set at least one Set at least one bit1 110% volt- of bits 0, 1 and of bits 1 and 2 Set all bits to 0.
Page 184 Enclosure - Earth leakage current, Enclosure - Enclosure current (Internally powered equipment): Sets the allowable value for fault condition to zero (+0.000E+00). • When network B1 is selected(only ST5540) Earth leakage current, Enclosure - Earth leakage current, Enclosure - Enclo- sure current, Free current: Sets one allowable value each for normal condition and single-fault condi- tion.
Page 185 Touch current:Enclosure - Earth, Touch current:Enclosure - Enclosure (Internally powered equipment): Sets the allowable value for fault condition to zero (+0.000E+00). • When network B2 is selected(only ST5540) Earth leakage current, Touch current:Enclosure - Earth, Touch current:Enclo- sure - Enclosure,...
Page 186 8.7 Command Message Description Sets and queries the allowable value(upper limit) Error An execution error occurs in the following cases : • When the measurement mode is not selected • If the set numeric value is not within the specified range(Command) •...
Page 187 8.7 Command Message Description Class I Class II Internally powered Leakage current Item Type Type Type Type Type Type Type Type Type mode Allowable value data for normal condition(upper limit) Earth Enclosure - leakage current Allowable value for fault condition(upper limit) Allowable value data for Set value Set value...
Page 188 8.7 Command Message Description Internally Class I Class II powered Leakage current mode Item Type Type Type Type Type Type Type Type Type Allowable value data for normal Set value condition(upper limit) Patient leakage Set value Set value current (SIP/SOP) Allowable value for fault zero condition(upper limit)
Page 189 8.7 Command Message Description Network C, G Internally Leakage current mode Item Class I Class II powered Allowable value data for normal condition(upper limit) Earth leakage current – Set value Allowable value for fault condition(upper limit) Allowable value data for normal Set value condition(upper limit) Touch current...
Page 190 8.7 Command Message Description Sets and queries the allowable value(upper limit) (when making AC measurements)(only ST5540) Syntax Command :CONFigure:COMParator:AC <numerical value 1>,<numerical value 2> :CONFigure:COMParator:AC? Query <numerical value 1>,<numerical value 2> Response <numerical value 1> = allowable value data (NR3) for normal condition (Upper limit, when AC is selected) <numerical value...
Page 191 8.7 Command Message Description Sets and queries the allowable value(upper limit) (when making DC measurements)(only ST5540) Syntax Command :CONFigure:COMParator:DC <numerical value 1>,<numerical value 2> :CONFigure:COMParator:DC? Query <numerical value 1>,<numerical value 2> Response <numerical value 1> = allowable value data (NR3) for normal condition (Upper limit, when DC is selected) <numerical value 2>...
Page 192 8.7 Command Message Description Sets and queries the allowable value (lower limit) On/Off Syntax Command :CONFigure:COMParator:LOWer <character value 1>,<character value 2> :CONFigure:COMParator:LOWer? Query <character value 1>,<character value 2> Response <character value 1> = OFF/ON OFF : Allowable value data for normal condition (lower limit)OFF ON : Allowable value data for normal condition (lower limit)ON <character value 2>= OFF/ON...
Page 193 8.7 Command Message Description Sets and queries the allowable value (lower limit) On/Off (when making AC measurements)(only ST5540) Syntax Command :CONFigure:COMParator:LOWerAC <character value 1>,<character value 2> :CONFigure:COMParator:LOWerAC? Query <character value 1>,<character value 2> Response <character value 1> = OFF/ON OFF : Allowable value data for normal condition (lower limit : AC mea-...
Page 194 8.7 Command Message Description Sets and queries the allowable value (lower limit) On/Off (when making DC measurements)(only ST5540) Syntax Command :CONFigure:COMParator:LOWerDC <character value 1>,<character value 2> :CONFigure:COMParator:LOWerDC? Query <character value 1>,<character value 2> Response <character value 1> = OFF/ON OFF : Allowable value data for normal condition (lower limit : DC mea-...
Page 195 8.7 Command Message Description Sets and queries the status of equipment under test in manual measurement Syntax Command :CONFigure:CONDition <characters> Query :CONFigure:CONDition? Response <characters> <characters> = NORMal/ EARTh/ POWersource/ NAPPly/ RAPPly/ LLINe/ NLINeNORMal: Normal condition EARTh : Single-fault condition (Disconnection of protective earth conductor) POWersource : Single-fault condition (Disconnection of one wire in power line) NAPPly...
Page 196 • When a mode other than "leakage current mode" is set • In automatic measurement(Command) • When network B1 or B2 is selected (only ST5540), the measurement current that can be set will differ depending on the leakage current. "Selectable target currents" (p. 65) •...
Page 197 = ON/ ON1_U2/ ON2_U3/ ON1_U1/ON2_U1/OFF When network A is selected : Single-frequency network : Multi-frequency network When network B1 or B2 is selected(only ST5540) : Network with a frequency characteristic : Network with 1 k non-inductive resistance only When network D is selected...
Page 198 • The unit is [s]. Fractions are rounded up when 0.5 or greater and rounded off when less than 0.5. Other manual measurements: Sets and queries the application of 110% of rated voltage(only ST5540) Syntax Command :CONFigure:OTHer <characters>...
Page 199 8.7 Command Message Description Other manual measurements: Sets and queries the application of 110% of rated voltage(only ST5540) Note • Use this command after executing the :MODE command to activate the mea- surement mode. :NETWork • Use this command after using the command to enter the B1 or B2 network.
Page 200 8.7 Command Message Description When network B2 is selected Internally powered equip- Class-I equipment Class-II equipment ment Other test condition (Other applied voltages) Applica- Applica- Applica- Applica- Applica- Applica- Applica- tion of tion of Applica- tion of tion of Applica- tion of tion of Measurement mode...
Page 201 8.7 Command Message Description Sets and queries the set measurement current (protective conductor ammeter) Syntax Command :CONFigure:PCC <characters> Query :CONFigure:PCC? Response <characters> <characters>= ACDC/AC/DC/ACPEAK ACDC : AC+DC(alternating current and direct current) AC : Alternating current DC : Direct current ACPEAK : ACPeak Function Command Sets protective conductor current.
Page 202 8.7 Command Message Description Sets and queries current range (protective conductor ammeter) Query :CONFigure:PCC:RANGe? :CONFIGURE:PCC:RANGE HOLD1 Response (Headers : ON) HOLD1 (Headers : OFF) The current range for protective conductor ammeter is set to the 50 mA range. Mode is set to something other than "protective conductor ammeter mode". Error Note Use this command after using the...
Page 203 • When a mode other than "leakage current mode" is set • In automatic measurement(Command) • When currency range is set to auto range and frequency range is set from 0.1 Specific manual measurement: Sets and queries the application of 110% of rated voltage(only ST5540) Syntax Command :CONFigure:SPECial <characters>...
Page 204 8.7 Command Message Description Specific manual measurement: Sets and queries the application of 110% of rated voltage(only ST5540) Example Command :CONFigure:AUTO OFF;:CONFigure:SPECial NAPPly Specific manual measurement: Sets the application of 110% of rated voltage as positive phase. Query :CONFigure:AUTO OFF;:CONFigure:SPECial?
Page 205 Free current – – – – – –  : Can be set, –: Cannot be set Sets and queries switches(only ST5540) Syntax Command :CONFigure:SWITch <characters> Query :CONFigure:SWITch? Response <character value 1>,<character value 2>,<character value 3> <character value 1>...
Page 206 8.7 Command Message Description Sets and queries switches(only ST5540) Error An execution error occurs in the following cases : • During automatic measurement • When a mode other than "leakage current mode" is set • When a Network other than "B1 or B2" is set •...
Page 207 8.7 Command Message Description When network B1 is selected Internally powered Class-I equipment Class-II equipment Switch equipment Measurement mode   Earth leakage current – – – – – – –     Enclosure - Earth leakage current –...
Page 208 8.7 Command Message Description Sets and queries the measurement terminal of the Patient leakage current (Patient Earth) and the total patient leakage current (Patient Earth) – – (only ST5540) Syntax Command :CONFigure:TERMinal <characters> Query :CONFigure:TERMinal? Response <characters> <characters> = T1T2/T2...
Page 209 8.7 Command Message Description Sets and queries the target voltage Example Command :CONFigure:VOLTage ACDC Sets the target voltage to AC+DC. Query :CONFigure:VOLTage? Response :CONFIGURE:VOLTAGE ACDC (Headers : ON) ACDC (Headers : OFF) The target voltage has been set to AC+DC. Error An execution error occurs when mode is set to something other than "voltmeter mode."...
Page 210 8.7 Command Message Description Sets and queries the wait time for switching operation in automatic measure- ment (delay c) Function Command Sets the wait time for switching operation in automatic measurement (delay c). Query Returns the wait time setting (delay c) for switching operation in automatic mea- surement as a numeric value.
Page 211 8.7 Command Message Description Sets and queries the wait time for switching operation in automatic measure- ment (delay a) Note • Use this command after executing the :MODE command to activate the mea- surement mode. • The unit is [s]. Fractions are rounded up when 0.5 or greater and rounded off when less than 0.5.
Page 212 8.7 Command Message Description Sets and queries the wait time for switching operation in automatic measure- ment (delay b1) Example Command :CONFigure:AUTO ON;:CONFigure:WTIMe:POLarity0 10 Sets the wait time (delay b1) for switching operation in automatic measurement to 10 seconds. Query :CONFigure:WTIMe:POLarity0? Response :CONFIGURE:WTIME:POLARITY0 1200...
Page 213 (not case-sensitive). The equipment name and control number need not be set except when mea- surement data is saved in memory. Sets and queries the applied part of equipment under test (Network B1, B2 only)(only ST5540) Syntax Command :EQUipment:TYPE <characters>...
Page 214 8.7 Command Message Description Sets and queries the applied part of equipment under test (Network B1, B2 only)(only ST5540) Error An execution error occurs in the following cases: • When network A, C, D, E, F or G is selected •...
Page 215 8.7 Command Message Description Sets and queries the application line for leakage current measurement between enclosure and line Syntax Command :LINE <characters> Query :LINE? Response <characters> <characters> = INT/ EXT INT : Uses internal contact. (internal contact and terminal T2) EXT : Uses external contact.
Page 216 8.7 Command Message Description Queries the measurement value Syntax Query :MEASure? Response <numerical value 1>,<numerical value 2> <numerical value 1> = Measurement value (NR3) <numerical value 2> = Judgement (NR1) 0: Equal to or less than the allowable value (PASS) 1: Greater than the allowable value(upper limit) (FAIL) 2: Smaller than the allowable value (lower limit) (LOW) 3: No judgment...
Page 217 8.7 Command Message Description Queries the maximum value after automatic measurement Syntax Query :MEASure:AUTO? Response <numerical value 1>,<numerical value 2>,<numerical value 3>,<numerical value 4>,<numerical value 5>,<numerical value 6>,<numerical value 7> <numerical value 1> = Maximum value(NR3) <numerical value 2> = Judgement(NR1) 0 : Equal to or less than the allowable value(PASS) 1 : Greater than the allowable value(upper lomit)(FAIL) 2 :Smaller than the allowable value (lower limit)(LOW)
Page 218 8.7 Command Message Description Queries the maximum value after automatic measurement Example Query :MEASure:AUTO? :MEASURE:AUTO +2.345E-03,0,0,0,0,0,0, Response +2.362E-03,0,1,0,0,0,0,+2.510E-03,0,0,2,0,0,0, +2.610E-03,1,1,2,0,0,0,+2.456E-03,0,0,1,0,0,0, +2.459E-03,0,1,1,0,0,0 (Headers : ON) +2.345E-03,0,0,0,0,0,0,+2.362E-03,0,1,0,0,0,0, +2.510E-03,0,0,2,0,0,0,+2.610E-03,1,1,2,0,0,0, +2.456E-03,0,0,1,0,0,0,+2.459E-03,0,1,1,0,0,0 (Headers: OFF) The example of response data is shown below: Maximum Power supply Target Judgement Equipment under test status value...
Page 219 8.7 Command Message Description Queries the maximum value Syntax Query :MEASure:MAXimum? Response <numerical value 1>,<numerical value 2>,<numerical value 3>,<numerical value 4>,<numerical value 5>,<numerical value 6>,<numerical value 7> <numerical value 1> = Maximum value (NR3) <numerical value 2> = Judgement (NR1) 0 : Equal to or less than the allowable value (PASS) 1 : Greater than the allowable value (upper limit)(FAIL) 2 : Smaller than the allowable value (lower limit)(LOW)
Page 220 8.7 Command Message Description Queries the maximum value Specific Power Other 110% Maximum Judge Target 110% volt- supply Equipment under test status voltage value ment current age applica- polarity application tion Negative Single-fault condition(Disconnec- 2.345 mA FAIL AC+DC none none phase tion of protective earth conductor) Error...
Page 221 8.7 Command Message Description Queries the voltage measurement value Note :SYSTem:MODE • Use this command after executing the command to set the instrument into voltmeter mode. • When [MEASure : VOLTage?] command is transmitted before the appropriate measurement range is selected in the Auto range, there is the case that the right measurement value is not received by PC.
Page 222 :Enclosure - Earth leakage current ENCLosure2 :Enclosure - Enclosure current ENCLosure3 :Enclosure - Line leakage current FREE :Free current (only network A) When network B1 is selected(only ST5540) EARTh :Earth leakage current ENCLosure1 :Enclosure - Earth leakage current ENCLosure2 :Enclosure - Enclosure current...
Page 223 8.7 Command Message Description Reads saved data Syntax Response <numerical value 1>,<numerical value 2>,<numerical value 3>, <numerical value 4>,<numerical value 5>,<numerical value 6>, <numerical value 7>,<numerical value 8> <numerical value 1> = Maximum value (NR3) <numerical value 2> = Judgement (NR1) 0 : Equal to or less than the allowable value (PASS) 1 : Greater than the allowable value (upper limit) (FAIL) 2 : Smaller than the allowable value (lower limit)(LOW)
Page 224 8.7 Command Message Description Reads saved data Syntax Response <numerical value 6> = Target current(NR1) 0 : AC+DC 1 : AC 2 : DC 3 : ACPeak <numerical value 7> =Other 110% voltage application 0 : Application of 110% voltage : none 1 : Application of 110% voltage : Positive phase 2 : Application of 110% voltage : Negative phase (0 for ST5541)
Page 225 8.7 Command Message Description Reads saved data Application of 110% of Specific Maxi- Power rated 110% Judge Equipment under Target supply Filter voltage voltage Switch ment test status current value polarity under applica- other tion conditions 2.345 PASS Positive Normal condition AC+DC None None...
Page 226 8.7 Command Message Description Saves the maximum value Syntax Command :MEMory:SAVE:MAXimum Function Command Saves the date, Equipment name, Control number, Grounding class, Applied part, network, measurement mode, Maximum value, test condition setting at maximum value acquisition, and judgement result of the present measurement in memory.
Page 227 8.7 Command Message Description Sets and queries the measurement mode Syntax Command :MODE <characters> Query :MODE? Response <characters> <characters>=OFF/EARTh/ENCLosure1(ENCL1)/ENCLosure2(ENCL2)/ ENCLosure3(ENCL3)/PATient1(PAT1)/PATient2(PAT2)/PATient3(PAT3)/PAUX- iliary/TOUCh1(TOUC1)/TOUCh2(TOUC2)/TOUCh3(TOUC3)/ PATientP2E(PATP2E)/PATientSIPSOP(PATSIPSOP)/PATientFTYPE(PAT- FTYPE)/PATientMP(PATMP)/TPATientP2E(TPATP2E)/TPATientSIPSOP(TPAT- SIPSOP)/TPATientFTYPE(TPATFTYPE)/TPATientMP(TPATMP)/FREE When network A, D, E, or F is selected : Mode not selected (Initial screen : command) (Initial screen, system screen : query) EARTh : Earth leakage current...
Page 228 8.7 Command Message Description Sets and queries the measurement mode When network B2 is selected : Mode not selected (Initial screen : command) (Initial screen, system screen: query) EARTh : Earth leakage current TOUCh1 : Touch current Enclosure - Earth TOUCh2 : Touch current Enclosure - Enclosure PAUXiliary...
Page 229 (Enclosure - Line) when the grounding class of equipment under test is internally powered equipment • When network B1 is selected (only ST5540) When Earth leakage current measurement mode is set for equipment under test whose grounding class is not Class I...
Page 230 8.7 Command Message Description Sets and queries the network Function Command Sets the network. Query Returns the network setting as alphabetic characters. Example Command :NETWork A Sets network A Query :NETWork? Response :NETWORK A (Headers : ON) (Headers: OFF) Network A has been set. Error An execution error occurs in the following cases: •...
Page 231 8.7 Command Message Description Sets and queries the backlight automatic OFF function Syntax Command :SYSTem:BACKlight <numerical value> Query :SYSTem:BACKlight? Response <numerical value> <numerical value> = 0 to 30 (NR1) : Constant ON 1 to 30 : Auto OFF(1 to 30 minute) Function Command Sets the backlight automatic OFF function.
Page 232 8.7 Command Message Description Sets and queries the beep sound (Key entry) Syntax Command :SYSTem:BEEPer:KEY <characters> Query :SYSTem:BEEPer:KEY? Response <characters> <characters> = ON/OFF ON : Generates a beep sound. OFF:Does not generate a beep sound. Function Command Sets the beep sound for notification of key entry. Query Returns the beep sound setting for notification of key entry.
Page 233 8.7 Command Message Description Sets and queries the beep sound (T3 output) Syntax Command :SYSTem:BEEPer:T3OUt <characters> Query :SYSTem:BEEPer:T3OUt? Response <characters> <characters> = ON/OFF ON: Generates a beep sound. OFF :Does not generate a beep sound. Function Command Sets the beep sound to be generated while 110% voltage is output from termi- nal 3.
Page 234 8.7 Command Message Description Sets and queries the date Function Command Sets the date in order of year, month, and day. Query Returns the date setting as a numeric value. Example Command :SYSTem:DATE 2010,7,31 Sets the date to 2010, July 31. Query :SYSTem:DATE? Response...
Page 235 : Earth leakage current : Touch current Enclosure - Earth : Touch current Enclosure - Enclosure : Touch current Enclosure - Line When network B1 is selected(only ST5540) : Earth leakage current : Enclosure - Earth leakage current : Enclosure - Enclosure current...
Page 236 When network C, D, E, F or G is selected 0 : AC+DC, 1 : AC, 2 : DC, 3 : ACpeak When network B2 is selected (only ST5540) 0 : AC+DC, 1 : AC, 2 : DC 3 : ACpeak (only Free current)
Page 237 8.7 Command Message Description Queries the content of a panel <numerical value 8> = Normal condition allowable value to use when making DC measurements(NR3)(unit : A) <numerical value 9> = Single fault condition allowable value to use when mak- ing DC measurements(NR3)(unit : A) <numerical value 10>...
Page 238 8.7 Command Message Description Queries the content of a panel <numerical value 18> = Switch 0 : S10=OFF, S12=OFF, S13=OFF 1 : S10=ON, S12=OFF, S13=OFF 2 : S10=OFF, S12=ON, S13=OFF 3 : S10=ON, S12=ON, S13=OFF 4 : S10=OFF, S12=OFF, S13=ON 5 : S10=ON, S12=OFF, S13=ON...
Page 239 8.7 Command Message Description Queries the content of a panel Function Query Returns the content of the panel of the specified number. Example Query :SYSTem:FILE? 1 Response :SYSTEM:FILE ABC,NO-111,CLA1,BF,B2,12,0,2,0,1, +100.0E-06,+500.0E-06,+10.00E-06,+50.00E-06, 0,0,1,0,1,1,2,0,1,0,0,0,0,0,0,0 (Headers: ON) ABC,NO-111,CLA1,BF,B2,12,0,2,0,1,+100.0E-06, +500.0E-06,+10.00E-06,+50.00E-06,0,0,1,0,1,1,2, 0,1,0,0,0,0,0,0,0 (Headers: OFF) The following settings have been made: <Equipment name>...
Page 240 8.7 Command Message Description Sets and queries the panel name Syntax Command :SYSTem:FILE:NAME <numerical value>,<characters> :SYSTem:FILE:NAME? Query <numerical value> <numerical value>=1 to 30(NR1) <characters> Response <characters>=panel name (Character data: 1 to 12 characters) Function Command Sets the panel name of the specified number. Returns the panel name setting of the specified number.
Page 241 8.7 Command Message Description Sets and queries the display language Syntax Command :SYSTem:LANGuage <characters> Query :SYSTem:LANGuage? Response <characters> <characters> = JAPanese/ ENGlish JAPanese : Japanese language ENGlish : English language Function Command Sets the display language. Query Returns the display language setting. Example Command :SYSTem:LANGuage JAPanese...
Page 242 8.7 Command Message Description Sets and queries all allowable values (lower limit) On/Off Function Command Sets the allowable value (lower limit) to On/Off. Returns all allowable value (lower limit) On/Off settings as alphabetic charac- Query ters. Example Command :SYSTem:LOWer ON Sets all allowable values (lower limit) On/Off to On.
Page 243 8.7 Command Message Description Sets and queries the mode Syntax Command :SYSTem:MODE <characters> Query :SYSTem:MODE? Response <characters> <characters> = LC/VOLT/PCC : Leakage current ammeter mode VOLT : Voltmeter mode : Protective conductor ammeter mode Function Command Sets the mode.Sets the mode. Query Returns the mode setting.
Page 244 8.7 Command Message Description Initializes the ST5540/ST5541 Syntax Command :SYSTem:RESet <characters> <characters> = ALL/ CONDition/ SAVEdata :Initializes the instrument to the default settings (factory settings). *RST Same as command CONDition :Initializes the instrument to the default settings except for saved measurement data.
Page 245 8.7 Command Message Description Sets and queries the fuse check (At power on) Syntax Command :SYSTem:TEST:FUSE:STARt <characters> Query :SYSTem:TEST:FUSE:STARt? <characters> Response <characters>=ON/OFF : Performs fuse check at power on. OFF : Does not perform fuse check at power on. Function Command Sets fuse check at power on.
Page 246 8.7 Command Message Description Sets and queries the relay check (At power on) Example Command :SYSTem:TEST:RELay:STARt ON Performs relay check at power on. Query :SYSTem:TEST:RELay:STARt? Response :SYSTEM:TEST:RELAY:START ON (Headers: ON) (Headers: OFF) Performs relay check at power on. Queries the VA check Syntax Query :SYSTem:TEST:VA?
Page 247 8.7 Command Message Description Sets and queries the VA check (At power on) Syntax Command :SYSTem:TEST:VA:STARt <characters> Query :SYSTem:TEST:VA:STARt? <characters> Response <characters>=ON/OFF : Performs VA check at power on. OFF : Does not perform VA check at power on. Function Command Sets VA check at power on.
Page 248 8.7 Command Message Description Sets and queries the unit of current measurement Syntax Command :SYSTem:UNIT <characters> Query :SYSTem:UNIT? Response <characters> <characters> = AUTO/HOLD AUTO : Automatic HOLD : mA, fixed Function Command Sets the unit of current measurement. Query Returns the unit of current measurement setting. Example Command :SYSTem: UNIT AUTO...
Page 249: To Transfer All Saved Data To A Computer
8.8 To Transfer All Saved Data to a Computer 8.8 To Transfer All Saved Data to a Com- puter :MEMory:NUMBer? Transmit to read the number of models (total number of data units). Transmit :MEMory:READ:IDENtity? <data unit number> to read the equipment name and control number of the specified data unit.
Page 250: Troubleshooting
8.9 Troubleshooting 8.9 Troubleshooting When the HiTESTER is malfunctioning, attempt checking and troubleshooting according to the instruc- tions shown below. Symptom Cause / Treatment RS-232C/ • Are the cables properly connected? stopped working completely. • Are all the devices powered on? •...
Page 251: Chapter 9 External Control
Chapter 9 External Control Make a connection to the EXT I/O connector to perform external control. EXT I/O terminal functions Input of start/stop signals Selection of panel number for data loading Output of measurement end signal Output of comparator judgement signal Others Connector type 57RE-40360-730B(D29)-FA (manufactured by DDK)
Page 252: Description Of Signals
9.1 Description of Signals 9.1 Description of Signals To prevent electrical hazards, observe the following cautions: • Turn off the instrument's power switch before connecting a cable to the terminal. Ensure secure connection to prevent the cable from discon- necting during operation and contacting a conductive part (e.g., chassis, test leads).
Page 253: Connecting To The Ext I/O Terminal
9.2 Connecting to the EXT I/O Terminal 9.2 Connecting to the EXT I/O Terminal Connect an EXT I/O cable connector before turning on the instrument's power switch. Connecting or disconnecting a cable connector after turning the instru- ment on may cause a fault. Follow the procedure described below when connecting an EXT I/O cable connector.
Page 254 9.2 Connecting to the EXT I/O Terminal Terminal Input/ Function name output INT.DCV Outputs the instrument's internal 5 VDC and GND. Output INT.GND EXT.DCV Terminal for power input from external equipment Input EXT.COM Allowed input voltage range: +5 to +24 VDC (Reserved) Do not use this terminal.
Page 255: Electrical Specifications
9.3 Electrical Specifications 9.3 Electrical Specifications Input signal specifications (Names of applicable signals : START, STOP, LOAD0 to LOAD4, KEYLOCK) Input signal Active Low input Maximum applied voltage Input voltage to EXT.DCV terminal High level Input voltage to EXT.DCV terminal, or open Low level 0.3 VDC or lower Output signal specifications...
Page 256: Internal Circuit Configuration
9.4 Internal Circuit Configuration 9.4 Internal Circuit Configuration • Insulating the signal wires prevents signal interference. Be sure to ground external equipment connected to the instrument. If protective earthing is not provided, insulation damage may result. • The maximum Low-level output current of the output photocoupler is 50 mA. If current higher than 50 mA is required, connect an external current amplifica- tion transistor circuit that operates on an external power supply.
Page 257: Timing Chart
9.5 Timing Chart 9.5 Timing Chart This is a timing chart for output signals during manual measurements. Description Time Pulse width of measured signal 55ms – Other than – Judgment result output time, display update ACpeak:550ms time ACpeak:600ms – • Free run measurements are made while in the leakage current measurement screen.
Page 258 9.5 Timing Chart The following shows the output signal timing chart for automatic measurement. The number of measurement items (n) varies depending on [number of polarity conditions] x [num- ber of equipment status] set with displayed on the automatic measurement setting screen. (Example) Polarity : Positive polarity ON, negative polarity ON..2...
Page 259: Panel Load Function At Ext I/O Start
9.5 Timing Chart Time Description Judgement result output time Until measurement completion of next mea- surement item Time from the completion of automatic 0 ms measurement to next measurement – start signal input Panel load function at EXT I/O start Saved measurement conditions can be read and measurement conducted according to the conditions read.
Page 260: Example Of Output Signal Connection
9.6 Example of Output Signal Connection 9.6 Example of Output Signal Connection When not using the INT.DCV, INT.GND, and EXT.DCV terminals [Relay] [LED lamp] Output Output 24 V max 24 V max EXT.COM EXT.COM 50 mA max 50 mA max When using a relay, be sure to install a diode for absorbing counter-electromo- tive force.
Page 261: Basic Functions
B1 Target current DC, AC, AC+DC, ACpeak 50 mA, 5 mA, 500 A, 50 A range Measurement (DC, AC, AC+DC ) range 75 mA, 10 mA, 1 mA, 500 A range (ACPeak ) Range switch AUTO(default), HOLD only ST5540...
Page 262: Auxiliary Measurement Functions
(a)Applied when positive phase (to input power supply voltage) (b)Applied when negative phase (to input power supply voltage) It is possible to automatically switch between (a) and (b) (automatic testing function) only ST5540 10.3 Measurement System Measurement Indication of a current value calculated based the measured drop in voltage...
Page 263 (b)0.1 Hz to 1 MHz CMRR 60 dB or more 60 dB or more 40 dB or more 40 dB or more (between terminals at 60 Hz at 10 kHz at 100 kHz at 1 MHz T1/T2 and chassis) only ST5540...
Page 264: Accuracy
10.4 Accuracy 10.4 Accuracy Current Measurement Section   Operating temperature and humidity for guaranteed accuracy : 23 5°C (73 41°F), 80% RH or lower (no dew condensation allowed) Temperature coefficient: 0.1 x basic accuracy x (T-23) weighted --- operating temperature T [°C] Warm-up time : 20 min.
Page 265: Network Section
100 kHz or lower –  ±1% 100 kHz or lower –  ±1% 1997 Hz±27 Hz – only ST5540 Accuracy (Deviation from theoretical value. Includes accuracy of internal voltmeter) Network Measured current AC, AC+DC ACpeak name/filter 50 mA, 5 mA, status ...
Page 266 10.4 Accuracy Accuracy (Deviation from theoretical value. Includes accuracy of internal voltmeter) Network Measured current AC, AC+DC ACpeak name/filter 50 mA, 5 mA, status   range 75 mA, 10 mA 1 mA, 500    0.1Hz < f < 10 kHz ±...
Page 267: Other Functions
(Default : 1 sec.) Setting range : 1 sec. to 30 min., in 1 sec. increments (When selecting network B1, 0 sec. to 30 min.) (when 0.1 Hz - 1 MHz is set ; equipped with pre-check function)* only ST5540...
Page 268 Selected from Class-I equipment, Class-II equipment, or internally powered class and applied part equipment equipment under (When selecting network B1 or B2, select the applied part from the Type B test applied part, Type BF applied part, or Type CF applied part) only ST5540...
Page 269: System-Related Functions
Allowable lower limit value Sets a lower limit value for all measurements. setting System reset (a) Returns instrument to its factory defaults (includes measurement data, setting conditions, etc.) (b) Clears all measurement data. (c) Clears all condition setting data including panels. only ST5540...
Page 270: User Interface
(INT.GND) Internal GND output (equivalent to chassis grounding) 10.9 Relay output for medical equipment (only ST5540) S10 : Relay between functional earth terminal and measurement power supply system ground Relay output S12 : Relay between patient connection and measurement power supply circuit ground...
Page 271: Pc Interfaces
Power supply polarity (Positive phase, Negative phase) Equipment status (Normal, Disconnected grounding wire, and so on) S10, 12, 13 test results* Information to be printed can be selected from the items above. All data is printed in English only ST5540...
Page 272: General Specifications
Only (b) can be (b)Measurement terminal section(T2 terminal)250 V F50mAL replaced (c)Measurement terminal section (relay PCB)250V F50mAL Size Approx. 320W x 110H x 253D mm (12.60”W x 4.33”H x 9.96”D) (excluding protruding sections) Weight Approx. 4.5 kg (158.7 oz.) only ST5540...
Page 273 9442 PRINTER 9443-01 AC ADAPTER (for printer / Japan ) 9443-02 AC ADAPTER (for printer / EU) 9444 CONNECTION CABLE (for printer, 9-pin to 9-pin, straight cable) 1196 RECORDING PAPER (for printer, 112 mm x 25 m, 10 rolls) only ST5540...
Page 274: Compliant Standards
10.13 Compliant standards 10.13Compliant standards Network A Electrical Appliance and Material Safety Ministerial ordinance establishing technical standards for electrical appliances Network B1 Medical electrical equipment Part 1 IEC 60601-1:1988 +A1:1993 +A2:1995 General requirements for safety Medical electrical equipment-Part1: JIS T 0601-1:1999 General requirements for basic safety and essential performace Network B2...
Page 275: Measurement Networks
10.14 Measurement Networks 10.14Measurement Networks Network A (for Electrical Appliance and Material Safety Law) Network A is a measurement network that complies with the Electrical Appliance and Material Safety Law. Network A complies with the following law : Ordinance Concerning Technical Requirements for Electrical Appliances and Materials Filter setting for single-frequency network (OFF) and multi-frequency network (ON)
Page 276: Network B1 (For Jis T 0601-1:1999)
10.14 Measurement Networks Network B1 (for JIS T 0601-1:1999) Network B1 is a measurement network for medical electrical equipment. Network B1 complies with the following standards : Medical electrical equipment - Part 1 : General requirements for safety (JIS T 0601-1:1999) ...
Page 277: Network B2 (For Iec 60601-1:2005 3Rd)
10.14 Measurement Networks Network B2 (for IEC 60601-1:2005 3rd) This network complies with IEC 60601-1:2005 3rd edition. The B2 measurement network complies with the following standard. Medical electrical equipment - Part 1 : General requirements for safety (IEC 60601-1:2005 3rd) General safety regulations for medical electrical equipment (JIS T 1001-92) Medical electrical equipment-Part1: General requirements for basic safety and essential performace...
Page 278: Network C (For Iec 60990)
10.14 Measurement Networks Network C (for IEC 60990) Network C is a measurement network that complies with IEC 60990. Network C complies with the following standards : Methods of measurement of touch current and protective conductor current (IEC 60990:1999) Filter setting for human body impedance network (OFF), network compatible with perception/reaction (ON1 (U1,U2)), and network compatible with abandon- ment (ON2 (U1,U3)) ...
Page 279 10.14 Measurement Networks Audio, video, and similar electronic apparatus - Safety requirements (IEC 60065:2001 +A1:2005) Safety of household and similar electrical appliances. - Part 1: General requirements (IEC60335-1:2010) Applicable UL standards (e.g.,UL 2231-1, UL-2231-2)There are many other applicable standards. Applicable standards Methods of measurement of touch current and protective conductor current IEC 60990:1999 Basic measurement element : 1.5 k...
Page 280: Network D (For Ul)
10.14 Measurement Networks Network D (for UL) Network D is a measurement network that complies with UL. Circuit Configuration  0.15 F 1.5 k Ｖ ± ± Network (1.5 k) with 1.5 k and 0.15 F When network D is selected, the instrument can also be used in compliance with the following standards on testing leakage current : There are many other applicable standards.
Page 281: Network E (General-Purpose 1)
10.14 Measurement Networks Network E (General-purpose 1) Network E is a general-purpose measurement network. The circuit configuration is as follows :   Ｖ ±   Network (1 k ) with 1 k This network can be used to perform leakage current tests in compliance with applicable standards.
Page 282: Network G (For Iec61010-1)
10.14 Measurement Networks Network G (for IEC61010-1) Network G is a measurement network that complies with IEC 61010-1. The G measurement network has the following circuit configuration.   ±  0.22 ±   ± Network (875 k) with 875  Applicable standards IEC 61010-1:2010 Safety requirements for electrical equipment used in measure-...
Page 283 10.14 Measurement Networks Protective conductor current network This is a network for measuring protective conductor current. Protective conductor current has the following circuit configuration.   ± Network (35 ) with 35  This network can be used to conduct leakage current tests in compliance with applicable standards.
Page 284 10.14 Measurement Networks...
Page 285: Chapter 11 Maintenance And Service
11.1 Cleaning and Storage Maintenance Chapter 11 and Service 11.1 Cleaning and Storage Cleaning To clean the instrument, wipe it gently with a soft cloth moistened with water or mild detergent. Never use solvents such as benzene, alcohol, acetone, ether, ketones, thinners or gasoline, as they can deform and discolor the case.
Page 286: Repair And Servicing
Therefore,before use,have the instrument recalibrated. Replaceable Parts and Operating Lifetimes Useful life depends on the operating environment and frequency of use. Operation cannot be guaranteed beyond the following periods. For replacement parts, contact your dealer or Hioki repre- sentative. Part...
Page 287 If abnormal operation occurs, check the following items. If the instrument continues to operate abnormally after taking the specified corrective action, the instrument may be malfunctioning. Turn off the instrument's power switch immediately, then contact your dealer or Hioki representative. Symptom Check item...
Page 288: Replacing Fuses
11.3 Replacing Fuses Stop using the instrument in the cases described below. Disconnect the power cord and test leads, then contact your dealer or Hioki representative. • When instrument damage can be confirmed. • When the instrument cannot be operated for measurement.
Page 289: Instrument Disposal
11.4 Instrument Disposal 11.4 Instrument Disposal The instrument contains a lithium battery for system memory backup. • To avoid electric shock, turn off the power switch and disconnect the power cord and test leads before removing the lithium battery. When disposing of this instrument, remove the lithium battery and dis- •...
Page 290 11.4 Instrument Disposal...
Page 291: Appendix A1
Appendix1 Terminology Appendix Appendix1 Terminology (excerpt from IEC 60601-1:2005 3rd) Equipment part TYPE B APPLIED APPLIED PART complying with the specified requirements of this stan- dard to provide protection against electric shock, particularly regarding PART allowable PATIENT LEAKAGE CURRENT and PATIENT AUXILIARY CURRENT.
Page 292 Appendix1 Terminology Equipment type (classification) MEDICAL ELECTRI- electrical equipment having an APPLIED PART or transferring energy CAL EQUIPMENT to or from the PATIENT or detecting such energy transfer to or from the (ME EQUIPMENT) PATIENT. term referring to electrical equipment in which protection against elec- tric shock does not rely on BASIC INSULATION only, but which CLASS I includes an additional safety precaution in that means are provided for...
Page 293 Appendix1 Terminology Others FUNCTIONAL EARTH terminal, directly connected to a circuit or to a screening part, that is TERMINAL intended to be earthed for functional purposes. condition in which all means provided for protection against HAZARDS NORMAL CONDITION are intact. SINGLE FAULT condition in which a single means for reducing a RISK is defective or a CONDITION...
Page 294: Other Test Condition And Special Test Condition
Appendix2 List of instrument status, other test condition and special test condition Appendix2 List of instrument status, other test condition and special test condition When network A, D, E or F is selected Class-I equipment Class-II equipment Internally powered equipment Equipment status Equipment status Equipment status...
Page 295 Appendix2 List of instrument status, other test condition and special test condition When network C or G is selected Class-I equipment Class-II equipment Internally powered equipment Equipment status Equipment status Equipment status Measurement Single-fault condition Single-fault condition Single-fault condition mode Normal Normal Normal...
Page 296 Appendix2 List of instrument status, other test condition and special test condition Internally Special test condition Application of 110% powered (Specific applied voltage) voltage:Negative phase equipment Application of 110% voltage:Positive phase Other test condition Application of 110% (Other applied voltages) voltage:Negative phase Application of 110% voltage:Positive phase...
Page 297: Appendix3List Of Default Settings
Appendix3 List of default settings Appendix3 List of default settings Default settings for each network when the software is initialized. Network A After selecting network, class and leakage current mode default setting Leakage current mode item Class I Class II Internally powered measurement manual...
Page 298 Appendix3 List of default settings default setting Leakage current mode item Class I Class II Internally powered measurement manual manual condition L side L side Selected line internal internal filter target current ACDC ACDC range AUTO AUTO Enclosure - Line allowable value : upper –...
Page 299 Appendix3 List of default settings Network B1 When network B1 is selected, measured AC+DC current does not appear on the screen. AC+DC is automatically selected internally. After selecting network, class, applied part and leakage current mode default setting Class I Class II Internally powered Leakage...
Page 300 Appendix3 List of default settings default setting Class I Class II Internally powered Leakage current item Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF mode measurement manual manual manual polarity positive phase positive phase –...
Page 301 Appendix3 List of default settings default setting Class I Class II Internally powered Leakage current item Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF mode Patient leak- measurement manual manual manual age current polarity...
Page 302 Appendix3 List of default settings default setting Class I Class II Internally powered Leakage current item Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF mode Patient aux- measurement manual manual manual iliary current polarity...
Page 303 Appendix3 List of default settings Network B2 When network B2 is selected, measured AC+DC current does not appear on the screen. AC+DC is automatically selected internally. After selecting network, class, applied part and leakage current mode default setting Class I Class II Internally powered Leakage...
Page 304 Appendix3 List of default settings default setting Class I Class II Internally powered Leakage item Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF current mode Touch cur- measurement manual manual manual rent (Enclo- polarity...
Page 305 Appendix3 List of default settings default setting Class I Class II Internally powered Leakage item Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF current mode Patient leak- measurement manual manual manual age current polarity...
Page 306 Appendix3 List of default settings default setting Class I Class II Internally powered Leakage item Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF current mode Patient leak- measurement manual manual manual age current polarity...
Page 307 Appendix3 List of default settings default setting Class I Class II Internally powered Leakage item Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF current mode Patient leak- measurement manual manual manual age current polarity...
Page 308 Appendix3 List of default settings default setting Class I Class II Internally powered Leakage item Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF current mode Patient leak- measurement manual manual manual age current polarity...
Page 309 Appendix3 List of default settings default setting Class I Class II Internally powered Leakage item Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF current mode Total patient measurement manual manual manual leakage cur- polarity...
Page 310 Appendix3 List of default settings default setting Class I Class II Internally powered Leakage item Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF current mode Total patient measurement manual manual manual leakage polarity...
Page 311 Appendix3 List of default settings default setting Class I Class II Internally powered Leakage item Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF current mode Total patient measurement manual manual manual leakage polarity...
Page 312 Appendix3 List of default settings default setting Class I Class II Internally powered Leakage item Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF current mode Patient auxil- measurement manual manual manual iary current polarity...
Page 313 Appendix3 List of default settings default setting Class I Class II Internally powered Leakage item Type B Type BF Type CF Type B Type BF Type CF Type B Type BF Type CF current mode Free current measurement manual manual manual polarity positive phase...
Page 314 Appendix3 List of default settings Network C After selecting network and leakage current mode default setting Leakage current mode item Class I Class II Internally powered measurement manual positive polarity phase equipment status normal filter target current ACDC range AUTO Earth leakage current –...
Page 315 Appendix3 List of default settings default setting Leakage current mode item Class I Class II Internally powered measurement manual manual condition L side L side Selected line internal internal filter ON1_U2 ON1_U2 target current ACDC ACDC range AUTO AUTO Touch current (Enclosure - Line) –...
Page 316 Appendix3 List of default settings Network D/E/F After selecting network, class, applied part and leakage current mode default setting Leakage current mode item Class I Class II Internally powered measurement manual polarity positive phase equipment status normal filter – target current ACDC range AUTO...
Page 317 Appendix3 List of default settings Network G After selecting network, class, applied part and leakage current mode default setting Leakage current mode item Class I Class II Internally powered measurement manual positive polarity phase equipment status normal filter target current ACDC Earth leakage current –...
Page 318 Appendix3 List of default settings default setting Leakage current mode item Class I Class II Internally powered Touch current (Enclosure - Line) measurement manual manual – condition L side L side Selected line internal internal filter target current ACDC ACDC range AUTO AUTO...
Page 319: Appendix4External Dimensions
Appendix4 External Dimensions Appendix4External Dimensions （） Unit: mm 320 ± 2 5 ± 1 270 ± 0.5...
Page 320 Appendix4 External Dimensions...
Page 321 Index Index Number 110% voltage application ......85, 87 Filter ............. 29, 59 110% voltage output terminal ......24 Free current measurement(Enclosure - Enclosure) ................101 9195 Enclosure Probe ........77 Frequency Range ..........116 Fuse ..............42 Fuse Check ........116, 123, 238 ...............64 Fuses ...........
Page 322 Index System ............. 159, 263 Negative phase ..........68, 80 Network ........48, 155, 259, 269 Target current ........29, 64, 190 nointerrupted performance check ....127 terminal ............... 36 Normal condition .......... 61, A3 Terminal block ..........24, 33 Time ..............

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St5541

Hioki ST5540 Instruction Manual

Chapter 1 Overview

Chapter 2 Instrument Labels

Chapter 3 Setting

Chapter 4 Settings

Chapter 5 Measurement Preparations

Chapter 6 Measurements

Chapter 7 Instrument System Settings

Chapter 8 Controlling the

USB Interface)

Chapter 9 External Control

Chapter 10 Specifications255

Chapter 11 Maintenance and Service

Appendix A1

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