Hioki 3145-20 Instruction Manual

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Instruction Manual

3145-20

NOISE HiLOGGER

Contains explanation and

instructions regarding the

3145-20 NOISE HiLOGGER’s

operating method and functions.

April 2013 Revised edition 5 3145A981-05 13-04H

Contents

Introduction.................................................................................1

Verifying Package Contents.......................................................2

Safety Information .................................. ... ... ..............................3

Operating Precautions................................................................5

Chapter 1 Overview__________________________ 7

1.1 Product Overview .........................................................7

1.2 Features ....................................................................... 8

1.3 Measuring Principle ......................................................9

1.3.1 Monitor Measuring and Logging Measuring ...........10

1.3.2 Merits of the Measurement Method of this 

Instrument ...............................................................1 1

1.4 Names and Functions of Parts ...................................12

1.5 Display Screen ...........................................................16

1.5.1 Screen Layout .........................................................16

1.5.2 Logging Screen .......................................................17

1.5.3 Monitor Screen .......................................................20

1.5.4 Icon Summary .........................................................22

1.5.5 Submenus ...............................................................24

Chapter 2 Measurement Preparations _____25

2.1 Attaching the Strap .....................................................26

2.2 Install the Ferrite Cores ..............................................27

2.3 Connecting the AC Adapter .......................................28

2.4 Supplying Power with the Battery Pack .....................29

2.4.1 Installing the Battery Pack ......................................29

2.4.2 Charging the Battery Pack ......................................30

2.4.3 Battery Pack Life .....................................................32

2.5 Connect the CLAMP ON NOISE SENSOR ................33

2.6 Turning the Power On and Off ...................................36

2.7 Using the PC Card .....................................................37

2.7.1 Inserting the PC card ..............................................37

2.7.2 PC Card Initialization ..............................................38

2.8 Pre-Operation Inspection ......... ..................................40

Index

Contents

Chapter 3 Measurement____________________ 41

3.1 The Measurement Process ....................................... 42

3.2 Check the Current Input (Monitor Measurement) ...... 43

3.3 Record Changes Over Time (Logging Measurement) 45

3.4 "O.F." Display and "U.F." Display .............................. 50

Chapter 4 Useful Functions ________________ 51

4.1 View the Latest Logging Measurement Value or 

Peak Value ................................................... ... ... ....... 52

4.2 Check Using a Bar Graph (Monitor Measurement) ... 52

4.3 View Past Waveforms (Scroll Function) .................... 53

4.3.1 Scrolling the Waveform ..........................................53

4.3.2 Auto Scrolling .........................................................54

4.4 A/B Cursor Measurement .......................................... 55

4.5 Using the Alarm Function .......................................... 56

4.5.1 Settings on the Logging Screen or the 

Monitor Screen. ......................................................56

4.5.2 Setting on the Set Up Screen .................................59

4.5.3 Take the Alarm Reference Value (Monitor Screen) 65

4.6 Adding Event Marks to Waveforms ........................... 66

4.6.1 How to Add an Event Mark .....................................66

4.6.2 Searching Event Marks ..........................................67

4.7 Highlighting a Specific Band ...................................... 68

4.8 Preventing Malfunctions (Key Lock) ........... .. ... ... .. ..... 69

4.9 Saving the Display Screen to PC Card  (Screen Capture) 70

Chapter 5  Setting the Measurement Conditions ______ 71

5.1 Inputting Comments ..................................... ... .......... 72

5.1.1 Comment Input Method Details ..............................73

5.2 Setting the Input Type ............................................... 74

5.3 Setting the Range ..... ............................... ... ............... 75

5.4 Setting the Recording Interval ................................... 76

5.5 Setting the Recording Time ....................................... 77

5.6 Setting the Waveform Color ...................................... 79

Chapter 6 Saving and Reading Data________81

6.1 Saving Data during Measurement ............ ... .. .............82

6.1.1 Select "3145 Form" .................................................82

6.1.2 Filenames ............................................................... 83

6.1.3 Save Mode ..............................................................84

6.1.4 Specify the File Save Target ...................................89

6.2 Planning to Save Text after Measurement .................90

6.3 Saving Data after Measurement .............................. ..91

6.4 Saving Settings Data ..................................................94

6.5 Reading Measurement and Settings Data .................97

6.6 File Operation .............................................................99

6.6.1 Moving between Folders .......................................100

6.6.2 Deleting Files and Folders ....................................101

6.6.3 Creating Folders ...................................................102

6.6.4 Changing File Names and Folder Names .............104

6.6.5 Changing the File Order .......................................105

6.7 Calculation Method for “3145 Form” Files ................106

6.8 Content Format for Text Format Files ......................107

Chapter 7 System Screen_________________ 109

iii

Contents

7.1 Env (Environment) Screen .................................... ...110

7.1.1 Start Key Receive Condition  (Malfunction Prevention) 110

7.1.2 Start Backup After Power Loss .............................111

7.1.3 Grid Type ..............................................................112

7.1.4 Time Format when Saving Text ............................11 3

7.1.5 External Trigger Input (Event Marker) ..................114

7.1.6 External Trigger Filter ...........................................115

7.1.7 Copy Key Function (Monitor) ................................116

7.1.8 Save Color ............................................................117

7.1.9 Backlight Saver .....................................................118

7.1.10Backlight Brightness .............................................119

7.1.11Screen Color Scheme ...........................................120

7.1.12Display Language .................................................121

7.2 Setting Screen ..........................................................122

7.2.1 Saving Settings .....................................................122

7.2.2 Loading Setting Conditions ...................................124

7.2.3 Deleting Setting Conditions ..................................125

7.2.4 Automatically Loading ...........................................126

Index

Contents

7.2.5 Auto Setup ............................................................126

7.3 Init (Initialization) Screen ......................................... 127

7.3.1 Setting the Clock ..................................................127

7.3.2 Erasing Logging Measurement Data ....................128

7.3.3 System Reset .......................................................129

7.3.4 Self-check .............................................................130

Chapter 8 Using the CD ___________________131

8.1 CD Contents ............................................................ 131

8.2 Installing the Software ............................................. 132

8.3 Running the Software ............ .................................. 133

8.4 Deleting the Application (Uninstall) ..................... .. ... 134

8.5 Opening the Instruction Manual (PDF Format) ........ 135

Chapter 9 Specifications __________________137

9.1 General Specifications ............................................. 137

9.2 Input Area Specifications .. .. ..................................... 140

9.3 Accuracy ........................ .......................... ................ 142

9.4 Function Specifications ............................ ................ 143

9.5 Application Software Specifications ......................... 146

Chapter 10 Maintenance and Service_____147

10.1 Troubleshooting ....................................................... 148

10.1.1Before Returning for Repair ..................................148

10.1.2System Reset .......................................................149

10.2 Warning Messages .................................................. 150

10.3 Cleaning .................................................................. 152

10.4 Replacing the Backup Battery ............... .. ... .. ... ... ..... 153

10.5 Removing the Battery Before Discarding the  Instrument 154

Appendix____________________________________ A1

Appendix 1 The Carrying Case ......................................................A1

Appendix 2 Trigger Terminals ........................................................A2

Appendix 2.1EXT TRIG Terminal .............................................A2

Appendix 2.2TRIG OUT Terminal .............................................A5

Appendix 3 Glossary of Terms.......................................................A7

Introduction

Thank you for purchasing the HIOKI "Model 3145-20 NOISE HiLOGGER." To obtain maximum performance from the instrument, please read this manual first, and keep it handy for future reference.

The following instruction manuals are included with the 3145-20 NOISE HiLOGGER. Refer to them as they pertain to your usage of the instrument.

Manuals Contents

Measurement Guide

Introduction

Read first.

Offers an introduction to the 314520's basic measuring method for first time users.

Instruction Manual

(this manual)

"DATA VIEWER for 3145"

Instruction Manual

"Communications"

Instruction Manual

"Communication  Commands"

Instruction Manual

Use the optional Clamp on Noise Sensor for measuring current. Read

uction manual included with the Clamp on Noise Sensor and fol-

the instr low all safety precautions.

User's License The "DATA VIEWER for 3145" software is included with the instrument.

is software requires a license agreement. Please use it only after

reading and accepting the license agreement at the back of the book.

Registered

Trademarks

Windows, Microsoft Excel, and MS-DOS are registered trademarks of Microsoft Corporation in the United States and/or other countries.

Contains explanation and instructions

rding the instrument's operating

rega method and functions.

Contents Contains information about PC soft-

ware which can analyze the measurement data recorded by the instrument.

Explains the communication functions which can be used via the LAN and RS-232C interfaces.

Explains the commands for remote control of the instrument via the LAN and RS-232C interfaces.

 Carrying case........................................1

 Strap......................................................1

 CD (Software, Instruction Manuals)

...................................................................1

 Instruction Manual (this manual)/

Measurement Guide ..................each one

• "DATA VIEWER for 3145"  Software and Instruction Manual

• "Communications”  Instruction Manual

• "Communication Commands"  Instruction Manual

 Model 3145-20 NOISE HiLOGGER ......1

Accessories



Model 9418-15 AC ADAPTER..............1

 Ferrite cores........................................ ..3

Verifying Package Contents

• When you receive the instrument, inspect it carefully to ensure that no damage occurred during shipping. In particular, check the accessories, panel switches, and connectors. If damage is evident, or if it fails to operate according to the specifications, contact your dealer or Hioki representative.

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

Please check to make sure that no items are missing from your package.

Options  Model 9754 CLAMP ON NOISE SENSOR

 Model 9418-15 AC ADAPTER  Model 9447 BATTERY PACK (7.2 V, 2400 mAh)  Model 9643 CHARGE STAND (For the 9447 BATTERY PACK)  Model 9612 RS-232C CABLE

(9-pin mini DIN to 9-pin Dsub, cross cable, for PC)

 Model 9721 RS-232C CABLE

(9-pin mini DIN to 9-pin Dsub, straight cable, for modem)

 Model 9726 PC CARD 128M  Model 9727 PC CARD 256M  Model 9728 PC CARD 512M  Model 9729 PC CARD 1G  Model 9642 LAN CABLE

Safety Information

Notation

Symbols

Safety

This instrument is designed to comply with IEC 61010 Safety Standards, and has been thoroughly te ment. However, mishandling during use death, as well as damage to the instrument. Using the instrument in a way not described in this manual may negate the provided safety features. Be certain that you understand the instruc the manual before use. We disclaim any responsibility for accidents or injuries not resulting directly from instrument defects.

This manual contains information and warnings essential for safe operation of the instrument and for maintaining it in safe operating condition.

using it, be sure to carefully read the following safety precautions.

Before

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

strument.

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

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

Indicates a grounding terminal. Indicates DC (Direct Current). Indicates the ON side of the power switch.

sted for safety prior to ship-

could result in injury or

tions and precautions in

Indicates the OFF side of the power switch.

The following symbols in this manual indicate the relative importance of

ns and warnings.

cautio

Indicates that incorrect operation presents an extreme haza

rd that could result in serious injury or death to the

user. Indicates that incorrect operation presents a significant

haza

rd that could result in serious injury or death to the

user. Indicates that incorrect operation presents a possibility of

injur

y to the user or damage to the instrument.

Indicates advisory items related to performance or correct oper

ation of the instrument.

Safety Information

Others

Indicates a prohibited action.



p

Indicates the location of reference information. Indicates quick references for operation and remedies for

oubleshooting.

tr Indicates that descriptive information is provided below.

Accuracy We define measurement tolerances in terms of rdg. (reading) valu e, with

the follo

wing meanings:

rdg. (reading or displayed value)

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

Measurement categories

To ensure safe operation of measurement instrument, IEC 61010 establishes safety standards for various electrical environments, categorized as CAT II to CAT IV, and called measurement categories.

CAT II

CAT III

CAT IV

Using a measurement instrument in an envi-

onment designated with a higher-numbered

r category than that for which the instrument is rated could result in a severe accident, and must be carefully avoided. Use of a measurement instrument that is not CAT-rated in CAT II to CAT IV measurement applications could result in a severe accident, and must be carefully avoided.

Primary electrical circuits in equipment connected to an AC electrical outlet by a power cord (portable tools, household appliances, etc.) CAT II covers directly measuring electrical outlet receptacles.

Primary electrical circuits of heavy equipment (fixed installations) connected directly to the distribution panel panel to outlets.

The circuit from the service drop to the service entrance, and to the power meter and primary overcurrent protection instrument (distribution panel).

, and feeders from the distribution

Installing the instrument

• Vents must not be obstructed.

• The instrument should be operated only with the bottom side downwards.

• Do not place on an unstable stand or on an incline.

10 cm or more

Ventilation holes

Operating Precautions

Follow these precautions to ensure safe operation and to obtain the full benefits of the various functions.

Preliminary checks

Before using the instrument the first time, verify that it operates normally to ensure that the n

o damage occurred during storage or shipping. If you find any damage, contact your

dealer or Hioki representative.

Before using the instrument, make sure that the insulation on the test leads is undamaged and that no bare conductors are improperly exposed. Using the instrument i cause an electric shock, so contact your dealer or Hioki representative for repair.

Installing the instrument

Operating temperature & humidity: 0 to 40°C (32 to 104°F), 80%RH or less (non-condensating) Operating temperature & humidity for guaranteed accuracy: 23

Avoid the following locations that could cause an accident or damage to the instrument.

n such conditions could

± 5°C (73 ± 9°F), 80%RH or less

Exposed to direct sunlight Exposed to high temperature

Exposed to liquids Exposed to high humidity or

condensation

Exposed to high levels of p

articulate dust

In the presence of corrosive or explosive gases

Exposed to strong electromagnetic fields Near electromagnetic radiators

Subject to vibration

Operating Precautions

Handling the instrument

To avoid electric shock, do not remove the instrument's case. The internal components of the instrument carry high voltages and may become very hot during operation.

To avoid damage to the instrument, protect it from physical shock when transporting and handling. Be especially careful to avoid physical shock from dropping.

To avoid problems with battery operation, remove the batteries from the instrument if it is to be stored for a long time.

Handling the CD

• Always hold the disc by the edges, so as not to make fingerprints on the disc or scratch the printing.

• Never touch the recorded side of the disc. Do not place the disc directly on anything hard.

• Do not wet the disc with volatile alcohol or water, as there is a possibility of the label printing disappearing.

• To write on the disc label surface, use a spirit-based felt pen. Do not use a ball-point pen or hard-tipped pen, because there is a danger of scratching the surface and corrupting the data. Do not use adhesive labels.

• Do not expose the disc directly to the sun's rays, or keep it in conditions of high temperature or humidity, as there is a danger of warping, with co

• To remove dirt, dust, or fingerprints from the disc, wipe with a dry cloth, or use a CD cleaner. Always wipe radially from the inside to the outside, and do no wipe with circular movements. Never use abrasives or solvent cleaners.

• Hioki shall not be held liable for any problems with a computer system tha

t arises from the use of this CD, or for any problem related to the

purchase of a Hioki product.

nsequent loss of data.

1.1 Product Overview

Communication lines

Electrical lines

Ground lines

Overview Chapter 1

1.1 Product Overview

The 3145-20 NOISE HiLOGGER is the ideal measuring instrument for measuring current on lines which can easily become channels for noise penetration, such as communication lines, electric power cords and ground lines which connect to electronic equipment. By clamping with the 9754 CLAMP ON NOISE SENSOR the 3145-20 detects noise without touching the sample. Therefore it can perform measurements on instruments in their normal operational state, without worry of communication malfunction due to probe contact, or electrical shock or electrical short circuit accidents from electrical lines. Furthermore, it can reliably detect sudden surges which may occur unexpectedly, such as thunder surges and open-close surges. With the use of the logging function, long term or cyclic noise level fluctuations can be understood. Recorded data is shown on the instrument's color LCD display as a chronological graph. Additionally, transferring data to a PC and checking the chronological graph can be done using

the "DATA VIEWER for 3145" software on the included CD. This can be useful for examining noise counter-measures after an occurance of noise interference.

Chapter 1 Overview

1.2 Features

Simple and safe measurements

With the use of the optional Clamp on Noise Sensor, noise can be measured on power cords, various communications lines, and ground lines without making contact or grounding.

Wide frequency range (5 kHz - 100 MHz)

The instrument is effective for detecting switching regulator noise, inverter noise, electrostatic discharge noise, and FM broadcast wave noise.

Surge detection

The instrument detects lightning surges, power-related switching surges, and electrostatic discharge noise.

Logging measurement function

Long-term and cyclic noise levels can be ascertained, and the times at which the noise and interference occured can be investigated.

Alarm function and event mark function

An alarm level for alarm output can be set, and event marking can be enacted at the time an event occurs.

Remote measuring with an HTTP server

Remote control of the instrument's settings, data acquisition and data display can be performed using a web-based browser such as IE.

A portable, dedicated noise measurement instrument intended for onsite use

The instrument supports two types of power sources, recharchable batteries designed for on-site use, and an AC adaptor power supply for long period observation and remote measuring. The recharchable battery can also be used as a backup in case of power failure.

-3dB

Q=fo/B=1

15kHz 70kHz 250kHz 1MHz 5MHz 20MHz 60MHz

-40dB/dec

Center frequency f

Attenuation property

Frequency

Band width B

Amplification

15kHz

70kHz

250kHz

1MHz

60MHz20MHz

5MHz

f0 = 15 kHz f

= 70 kHz

= 250 kHz

= 1 MHz

= 5 MHz

= 20 MHz

= 60 MHz

Sampling time

Measurement  values at each band

Measures and displays Peak to Peak values during sampling time at each PBF.

Peak to Peak value within sampling time

1.3 Measuring Princi ple

1.3 Measuring Principle

The instrument separates input noise waves into frequency bandwidths using a seven band-pass filter (7 frequency waves) and detects and displays peak values (Peak to Peak values) for each respective frequency range.

Chapter 1 Overview

The current input levels of each frequency are displayed as a bar graph and numbers. Noise measurement can be made easily in the tester interval.

With the logging measurement function the change over time of the noise level of each frequency band is recorded. When and at what frequency band noise penetrated can be easily ascertained. The time that the interference occured and the type of noise that occured at that time can be understood. The peak value within the manually set recording interval segment is saved in the internal memory and displayed in a chronological bar graph. The recording interval can be set between 1 second and 60 seconds.

Measurement data can be saved on PC card. Daily and weekly changes in the noise can be observed using the "DATA VIEWER for 3145" software on the included CD to conduct daily and weekly calculation displays of the recorded data.

1.3 Measuring Principle

1.3.1 Monitor Measuring and Logging Measuring

This instrument has two measuring modes, monitor and logging.

Monitor measurement

Logging measurement

1.3 Measuring Princi ple

Electrostatic discharge

Electric railway induction

Flourescent light

Motor for power

Arc-welding machine

Medium wave radio

Lightning surge

Switching

Neon sign

Elevator

The 3145-20 possible

measurement range

100M

10M

100k

10k

The cause of the noise

Frequency (Hz)

Cellular phone

Television

Personal wireless radio

Banned CB wireless radio

Amateur radio

FM broadcast

Short wave radio

Inverter

Electric power induction

1.3.2 Merits of the Measurement Method of this  Instrument

Simultaneous noise measurement of each frequency bandwidth from 10 kHz to 100 MHz.

Noise exists in a wide bandwidth and its frequency differs depending on its cause. With this instrument a wide bandwidth of noise can be checked all at once.

Peak-detection function for capturing surge events

Surge incidents of noise such as lightning surges and electrostatic discharge noise sometimes occur. Using the instrument's peak function, incidents of surge noise can be accurately captured.

Chapter 1 Overview

Display ( p. 16)

Front Panel

Key operations

1.4 Names and Functions of Parts

Key operations

Logging (time series graph)

Monitor (level meter)

Displays the waveforms on the full screen. Displays the latest value on the left side, and the waveforms on the right

side of the screen. Displays the peak value on the left side, and the waveforms on the right

side of the screen.

Displays the instantaneous values as a bar graph. Displays the instantaneous values on the left side, and a bar graph on the right side of the screen.

Displays the peak values as a bar graph. Displays the peak values on the left side, and the bar graph on the right side of the screen.

Key operations (continued)

Displays the Set up screen (the screen for setting the measurement conditions).

Saves an image of the display screen to a PC card. Takes the alarm reference value from the measurement value.

Displays the PC card screen. Performs loading and saving of measurement and other data.

Displays the settings contents summary. Turns off the settings contents display.

Cancels the item selected with the cursor.

Moves the cursor up, down, left and right.

Scrolls the waveform. Moves the A/B cursor.

Switches between waveform scroll and A/B cursor movement.

Highlights and displays a particular waveform during logging measurement.

Selects the band to highlight.

1.4 Names and Functions of Parts

Chapter 1 Overview

Sets the range. When the input category is current sensor: selects between 200 mA, 2 A and 20 A. When the input category is voltage: selects between 10 mV, 100 mV and  1 V. The possible measurement range differs depending on the selected range.

Sets the interval for taking data. Select 1s, 2s, 5s,10s, 20s, 30s or 60s to suit the object to be measured. Shortening the recording interval causes the maximum recording time to be decreased.

Sets the logging measurement time axis (horizontal axis). Select 2s, 5s, 10s, 20s, 30s, 1min, 2min, 5min, 10min, 20min, 30min, 1h, 2h, 5h,10h, 12h or 1d. The time axis indicates the time of 1 mass in the horizontal axis direction.

Commences logging measurement. Adds an event marker if pressed during measurement. (regarding the key LED display) Green light : Performing logging measurement; backlight OFF Flashing green light : Performing settings; backlight OFF Red light : Performing battery charge with the power turned off.

Press twice to stop logging measurement.

Eject button

Ejects the PC card.

PC card slot

10BASE-T Ethernet connection port

Connects with a 9642 LAN CABLE.

RS-232C port

Connects with the 9612 RS-232C CABLE (cross cable for PC use) or the 9721 RS-232C CABLE (straight cable for modem use).

è„ ñþ

Upper Panel

Lower Panel

AC adaptor input connector

Power switch (POWER)

Contrast adjustment control (CONTRAST)

EXT TRIG terminal  (external trigger)

Used for entering event markers during logging measurement. (

 p. A2)

TRIG OUT terminal (trigger output)

Outputs a signal during  warning. (

 p. A5)

GND terminal

Used in combination with the trigger terminals

1.4 Names and Functions of Parts

Right Panel

Input terminal

Connects with the Clamp on Noise Sensor.

Ventilation holes

Bottom Panel

Battery box

For installing the 9447 BATTERY PACK

1.4 Names and Functions of Parts

Chapter 1 Overview

Logging Screen

•Full

• Latest values

• Peak values (Full screen

shown right)

Set up  Screen

System Screen

•Env

• Setting

•Init

Monitor Screen

• Instantaneous values

• Peak values

(Instantaneous value shown right)

PC card Screen

Comm Screen

1.5 Display Screen

1.5.1 Screen Layout

Broadly classified, the instrument has the following 6 different display screen layouts.

Displays the waveforms on the full screen.

Displays the latest value on the left side, and the waveforms on the right side of the screen.

Displays the peak value on the left side, and the waveforms and date and time on the right side of the screen.

1.5 Display Screen

1.5.2 Logging Screen

The logging screen has three display types: full screen display, latest value display, and peak value display.

Chapter 1 Overview

Range Recording interval Time

Time axis

Toggle

Icon

Gauge

Time display

Band waveform

Event mark

A/B cursor values

Band marker

View

Icon

1.5 Display Screen

Logging screen

Icon Displays various aspects of the instrument's current state. ( p. 22)

Gauge The vertical axis of the graph (logarithmic display).

Toggle Press to toggle between the following functions:

Scroll: Scroll through the waveform using . Cursor A: Move cursor A using . Cursor B: Move cursor B using .

Range The measurement range. Use to set.

Recording

int

The recording interval for logging measurement.

erval

Use to set.

Marker

O.F. icon

1.5 Display Screen

Time Displays the current time. Set using the System Init screen.

Time axis The period of time for 1 mass in the time access direction. Use

to set.

Event mark A mark can be added by pressing during logging measurement.

Chapter 1 Overview

A/B cursor

values

Band marker Indicates which waveform band is being displayed.

Individual

ban

waveform

Time display The graph's horizontal axis (measurement time) display.

Alarm

aveform

Overflow

(O.F.)

The read value of the measurement value.

The measurement waveforms for each individual band.

Toggles between time, date and time, and data number for the current display e

play the display format changes each time is pressed.

If the alarm function is set and the measurement value exceeds the judgment value a marker appears at the bottom of the graph.

View The display position of the currently displayed waveform (the section of

wavefo Also displays the positions of the A cursor and B cursor.

If the measurement value exceeds the measurement range, a marker appears at the top of the graph. Also, the icon is displayed in the

upper left of the screen.

ach time the key is pressed. For example, during full screen dis-

rm being displayed relative to the full waveform).

Underflow

U.F.)

(

Underflow occurs when the measurement value is lower than the measurement range.

Displays the instantaneous values on the left side, and a bar graph on the right side of the screen.

Displays the peak value with its date and time on the left side, and a bar graph on the right side of the screen.

1.5 Display Screen

1.5.3 Monitor Screen

The monitor screen has two display types: instantaneous value display and peak value display.

Monitor screen

Range

Time

Icon

Peak

Alarm judgment value

Band display

Level bar

1.5 Display Screen

Chapter 1 Overview

Alarm judg-

Band display The frequency band display.

Icon Displays various aspects of the instrument's current state. ( p. 22)

Range The measurement range. Use to set.

Time Displays the current time. Set using the System Init screen.

ment value

Level bar The current input value.

The value at which an alarm is triggered at each band when using the alar

m function.

Peak The peak value at the time of the screen display.

Icon

1.5 Display Screen

1.5.4 Icon Summary

The following icons are displayed in the upper left of the logging and monitor screens.

(Logging screen shown above)

Icons Explanations

Indicates that the instrument cannot receive commands from the fr

ont panel keys (Key lock).

Simultaneously pressing / for 3 seconds or more will switch between Lock and Unlock.

Indicates that the System Env screen copy key is set to "Scree

n capture".

When is pressed the display screen is BMP saved to the PC card. Refer to "7.1.7 Copy Key Function (Monitor)" ( p. 116)

Indicates that the System Env screen copy key is set to "Alarm captur

e".

When is pressed the alarm reference value is taken. Refer to "7.1.7 Copy Key Function (Monitor)" ( p. 116)

Indicates that the instrument is in alarm state.

Indicates that the instrument is not in alarm state. Indicates the type of power source being used.

Refer to "2.6 Turning the Power On and Off" ( p. 36) Indicates that a PC card is set in the instrument. Indicates that the measurement value is an overflow value.

During the logging peak value screen or the monitor peak value scr

een the overflow display is retained.

Icon

1.5 Display Screen

The following icons are displayed in the lower left of the display screen. They indicate the save condition of the measurement data.

(Logging screen shown above)

Icons Explanations

Performing auto save (erase save).

Performing auto save (file full).

Chapter 1 Overview

Performing auto save (endless).

Text save is set. Auto save is not possible because there is not

ficient space on the PC card.

suf Text save is not possible because there is not suf-

ficient space on the PC card.

Recording time

Alarm function

Event mark  (logging screen)

Alarm judgment value

Submenu

Waveform color

(Logging screen shown here)

1.5 Display Screen

1.5.5 Submenus

From the logging display or the monitor display, press to display the submenu.

Measurement conditions can be set right on the screen. Press to close the submenu.

Changing the settings

1. Press the keys to move the blinking cursor to the position of the setting

to be changed, and press to open the selection window.

2. Use the up and down / keys to select the desired item in the selection

window, and press to set.

Measurement 

Charge the battery pack.

Connect the Clamp on Noise Sensor.

Install the battery pack.

Connect the AC adapter to the 3145-20.

Install the strap.

Install ferrite cores onto the AC adapter,

Clamp on Noise Sensor, and LAN cables.

( p. 26)

(

 p. 27)

(

 p. 28)

(

 p. 29)

(

 p. 30)

(

 p. 33)

Initialize the PC card.

Perform pre-measurement check.

Insert the PC card.

Turn on the power.

( p. 36)

(

 p. 37)

(

 p. 38)

(

 p. 40)

(At time of purchase)

Commence measurement.

( p. 41)

Preparations

The step-by-step preparations for measuring are as follows.

Chapter 2

Chapter 2 Measurement Preparations

Attachment Point

Front Panel

Stopper

Strap

Buckle

(1)

(2)

(3)

2.1 Attaching the Strap

Attach the Strap at attachment point of the instrument.

Attach both ends of the Strap securely to the instrument. If insecurely attached, the instrument may fall and be damaged when carrying.

1. Insert each end of the Strap through an attachment point on the instrument.

2. Thread the end of the Strap through the buckle.

3. Finally, slide the stopper over the end of the Strap.

(AC adapter shown here)

Install as close as possible to the pre-installed ferrite core.

Termination box

2.2 Install the Ferrite Cores

In order to prevent malfunctions due to external magnetic waves, install ferrite cores onto the AC adapter, Clamp on Noise Sensor, and LAN cables.

1. Wrap the output side of the cable two times around the ferrite core.

2. Close the ferrite core until it makes a clicking sound.

• In the case of the Clamp on Noise Sensor, install the ferrite core as close as possible to the termination box.

• In the case of the LAN cable, install the ferrite core as close as possible to the connector which connects to the 3145-20.

Chapter 2 Measurement Preparations

Lower Panel

AC Adapter

2.3 Connecting the AC Adapter

Connect the AC adapter to the 3145-20 and supply power to the instrument. The 3145-20 can receive power from two types of power sources: either AC adapter or battery pack. When both are supplied at the same time, the AC adapter is used. Please use the instrument with the battery pack always in place, as it is also a countermeasure in the case of power outage.

• Turn the instrument off before connecting the AC adapter to the instrument and to AC power.

• Use only the supplied Model 9418-15 AC ADAPTER. AC adapter input voltage range is 100 to 240 VAC (with 60 Hz. To avoid electrical hazards and damage to the instrument, do not apply voltage outside of this range.

• Data can be retained for about ten minutes after power is interrupted (when the Battery pack is not installed). Operation after power interruption depends on the setting for Resume Recording After Power Loss. Refer to "2.7.2 PC Card Initialization" ( p. 38) and "7.1.2 Start Backup After Power Loss" ( p. 111).

• This instrument will not run erratically under a momentary power outage lasting less than 40 ms. However, if a momentary outage of 40 ms or more occurs, the instrument turns off temporarily, so the power condition at the installation location should be considered beforehand. Therefore, consider the p tions at your installation site before installing the instrument.

±10% stability) at 50/

ower supply condi-

1. Make sure the instrument is OFF.

2. Connect the AC adapter to the instrument.

3. Plug the AC adapter into the power outlet.

Bottom Panel

Model 9447 BATTERY PACK

2.4 Supplying Power with the Battery Pack

By using battery power to run the 3145-20 NOISE HiLOGGER, it can be used even in places with no commercial power outlets. The 9447 BATTERY PACK is rated for approximately 1 hour of continuous use (backlight: bright; after approximately 2.5 hours charging the battery). When longer periods of continuous measurement are required, please prepare multiple battery packs. The 3145-20 can also receive power from its AC adapter. When both are supplied at the same time, the AC adapter is used. Please use the instrument with the battery pack always in place, as it is also a counter-measure in the case of power outage.

• To avoid electric shock, turn off the power switch and disconnect the cables before replacing the batteries.

• For battery operation, use only the HIOKI Model 9447 BATTERY PACK. We cannot accept responsibility for accidents or damage related to the use of any other batteries.

2.4.1 Installing the Battery Pack

At the time of purchase, the back side of the instrument is equipped with a battery box. Remove the battery box and install the 9447 BATTERY PACK.

Chapter 2 Measurement Preparations

1. Turn off the power switch.

2. Remove the battery compartment.

3. Insert the 9447 BATTERY PACK until it clicks.

The battery pack is subject to self-discharge. Be sure to charge the battery pack before initial use. (Please refer to the next page)

Lower Panel

AC Adapter

Charging

Charged

2.4 Supplying Power with the Battery Pack

2.4.2 Charging the Battery Pack

The battery pack may be charged in the 3145-20 itself, or in the optional 9643 CHARGE STAND.

Charging with the 3145-20 NOISE HiLOGGER

The 9447 BATTERY PACK can be charged whether the 3145-20's power switch is turned ON or OFF (both during and after measurement).

1. Install the battery pack and con-

nect the AC adapter.

2. Rapid charge of the battery pack

begins.

(When the power switch is OFF) The LED lights up red, and turns

off when rapid battery charge is completed.

(When the power switch is ON) The mark is displayed at the top of the screen, and the mark is disp lay ed

when rapid battery charge is completed.

3. It takes approximately 2.5 hours to

complete rapid charge.

Rapid charge alone provides approximately 70% of the battery life that full charge provides. After completion of rapid charge, supplementally charging for approximately 10 additional hours will bring the battery pack to full charge.

Supplemental charging continues even after the battery pack is fully charged to prevent the battery pack self discharging.

2.4 Supplying Power with the Battery Pack

Charge stand

Battery Pack

AC Adapter

Charging with the optional 9643 CHARGE STAND

1. Place the battery pack in the

charge stand.

2. Connect the AC adapter to the

charge stand.

The LED will blink red, and then continually remain lit as rapid charge commences.

3. Rapid charge is completed in

approximately 2 hours.

The green LED lights up, and supplemental charging begins.

• The ambient temperature should be between 0 and 40 °C when charg-

ing. If charging is done outside this temperature range, the battery

rial will degrade and the battery may not be able to be sufficiently

mate charged, or the battery life may be shortened.

• Do not use chargers made by other companies.

• If the battery pack expires and the instrument automatically shuts off, sure to turn off the power switch. If left as is with the power switch

be turned on for a long period of time, the battery pack may be in danger of overdischarging.

Chapter 2 Measurement Preparations

• The battery pack is subject to self-discharge. If stored or otherwise not

used

for a long time, the battery pack should be discharged and then recharged at least once every two months. Battery capacity may be degraded if stored for a long time without charging.

Low battery display

2.4 Supplying Power with the Battery Pack

2.4.3 Battery Pack Life

If the battery life is considerably short even with correct charging, replace the battery pack with a new one. As the battery pack charge is

depleted, the low battery mark will be displayed in the upper left of the logging screen or monitor screen. Alternatively, the following warning is displaye charge the battery pack.

d: "WARNING 620: Battery low.". In such cases, please

2.5 Connect the CLAMP ON NOISE SENSOR

Connect the Clamp on Noise Sensor to the terminals of the 3145-20, and clamp the line to be measured. Before using, read the instruction manual included with the Clamp on Noise Sensor and follow all safety precautions.

• To avoid electric shock, do not to uch th e po r tio n be yon d t he p rotective barrier during use.

• To avoid short circuits and potentially life-threatening hazards, never attach the clamp to a circuit that operates at more than 600 V (CAT II) / 300 V (CAT II ), or over bare conductors.

• To avoid electrical shock, be careful not to damage the insulation of the conductor being measured.

• To avoid electrical shock, follow the precautions below to ensure no dangerous voltage from the power of the instrument being connected to or its other measuring terminals (those not connected to this instrument) is impressed upon the 9754 CLAMP ON NOISE SENSOR. If dangerous voltage is impressed upon this instrument, dangerous voltage will be generated in its BNC connector and inner circuitry, presenting an extreme hazard. Only connect to instruments which are constructed with double insulation and use a protective earth. Confirm that basic insulation which meets the measurement category, working voltage and pollution degree of the circuit being tested, is used to isolate the other measurement terminals of the instrument being connected to. If you are not sure basic insulation is used between the terminals of the measurement instrument, do not input voltage which exceeds the Separated Extra-Low Voltage Earthed (SELV-E) level into the other terminals of the instrument. Observe all safety precautions of the instrument you are using. Refer to the following standards regarding the meanings of underlined terms. IEC 61010-1 IEC 61010-031 IEC 61010-2-032

Chapter 2 Measurement Preparations

To avoid electric shock when measuring live lines, wear appropriate protective gear, such as insul safety helmet.

ated rubber gloves, boots and a

Line up

(1)

(2)

Turn until it clicks

2.5 Connect the CLAMP ON NOISE SENSOR

To avoid damaging the instrument, do not apply current that exceeds the maximum continuous input range. * Maximum continuous input range:

This range is based on heat that is internally generated during sine wave

input at a prescribed frequency at room temperature. It varies according to the frequency of the measured current. (Use the 9754 CLAMP ON NOISE SENSOR at the highest effective value within the maximum continuous input range.) In addition to the maximum continuous input range, there is also the "maximum peak current value 15 Apeak"

product specification. This indicates an upper waveform

response limit of 15 Apeak.

• When disconnecting the BNC connector, be sure to release the lock before pulling off the connector. Forcibly pulling the connector without releasing the lock, or pulling on the cable, can damage the connector.

• To avoid damaging the instrument, always open the clamp by using the

slider.

Apart from the Clamp on Noise Sensor, near magnetic field probes or antennae may be connected in a similar fashion to the Clamp on Noise Sensor to check and record individual band levels. Please use near magnetic field probes or antennae which match the characteristics of the Clamp on Noise Sensor. The measurement range, frequency char acteristics and input impedance are as follows. Measurement range : 1 Vp-p to 0.15 mVp-p Frequency bandwidth : 5 kHz to 100 MHz (-3 dB bandwidth) Input impedance : 50 

1. Connect the BNC connector of the 9754 CLAMP ON NOISE SENSOR to the

input terminal of the instrument being connected to.

2.5 Connect the CLAMP ON NOISE SENSOR

Current

Current direction  indicator

Make sure that the current direction indicator arrow matches the direction of current flow on the conductor being measured. Make sure also that the conductor is clamped in the center of the clamp opening.

Communication lines

Electrical lines

Ground lines

2. Pull the slider on the sensor to open the clamp.

3. Clamp the conductor to be measured and close the clamp.

4. Press on the slider until it clicks to lock shut.

Press the sensor slider until the "UNLOCK" message disappears and "LOCK" is displayed, and confirm that the slider is firmly locked and the clamp securely closed.

5. When disconnecting the 9754 CLAMP ON NOISE SENSOR, pull the sensor

slider to open the clamp and remove the Clamp on Noise Sensor from the conductor being measured.

Chapter 2 Measurement Preparations

Marks Explanations

Operating with the AC adapter. Operating with the 9447 BATTERY

PACK. Battery capacity is low.

Charge the battery pack. Charging the battery pack

2.6 Turning the Power On and Off

Power On

1. Turns on ( ) the POWER switch.

2. Depending on the type and condition of the power supplied to the instrument,

one of the following messages appears on the display.

3. During initial use after purchasing, set the time using the System Init screen.

Refer to "7.3.1 Setting the Clock" ( p. 127).

Power Off

1. Turns off ( ) the power switch.

2. Remove the Clamp on Noise Sensor from the conductor being measured.

3. Remove the AC adaptor plug from its electrical outlet.

• After power is turned off, the last waveform data is retained for about 10 minutes.

• When power is turned on, the instrument restores the settings used immediately before power was turned off last (backup function).

2.7 Using the PC Card

Some PC Cards are susceptible to static electricity. Exercise care when using such products because static electricity could damage the PC Card or cause malfunction of the instrument.

2.7 Using the PC Card

2.7.1 Inserting the PC card

When saving logging measurement data or setting conditions to a PC card, insert the PC card into the slot at the top of the 3145-20.

Important

Use only PC Cards sold by Hioki. Compatibility and performance are not guaranteed for PC cards made by other manufacturers. You may be unable to read from or save data to such cards. Hioki options PC cards (includes adapter) Model 9726 PC CARD 128M, Model 9727 PC CARD 256M,  Model 9728 PC CARD 512M, Model 9729 PC CARD 1G

PC card insertion

1. Open the cover and insert the PC card with

the arrow facing up and in the direction of the PC card slot, as far as it will go.

Inserting a PC card upside down, backwards or in the wrong direction may damage the instrument

2. Before using a new PC Card, it must be ini-

tialized.

Chapter 2 Measurement Preparations

Removing the PC card

1. Press the eject button and pull out the PC

card.

2. Always close the cover when no PC Card

is installed.

2.7 Using the PC Card

2.7.2 PC Card Initialization

Initialize the PC card. All files on the PC card will be erased, and a system file resistant to power outage will be created.

When using a PC card with the instrument, be sure to format the card before its initial use using the instrument. When formatting in "FAT 16" using a PC (personal computer), please note that the Power Fault Protection function will be ineffective. Furthermore, do not use the "FAT 32

" format, as doing so will result in error. When recording for long durations, format the card before measurement, and make a backup copy of the resulting waveform files on your PC or ot mended that you re-format the card before measurement in order to ob

her storage media. When re-using a PC card, it is recom-

tain maximum performance.

1. Press to open the PC card screen.

2. Press / to choose [Format].

3. Press to open the initialize screen.

Selectable items

Explanations

Quick

The PC Card is not tested for bad sectors.

Entirely

The PC Card is tested for bad sectors, which are removed from use if possible. When using a brand new PC card for the first time, select

[Entirely].

2.7 Using the PC Card

4. Press to move the flashing cursor to [Method], and press to open the

contents.

Chapter 2 Measurement Preparations

5. Use the up and down / keys to select [Entirely], and press to set.

6. Press to move the blinking cursor to [Execute], and press to execute

initialization.

To cancel, move the blinking cursor to [Back] and press .

• If a PC card is formatted by the instrument, a /LOGGER/ directory will be created, and when you attempt to save a file into the root directory automatically it will be saved to this directory instead. When the saving operation begins, you will automatically be moved to the /LOGGER/ directory. 

• You cannot change the name of the /LOGGER/ directory or delete the

direct

ory.

Yes

Is the probe free from any torn insulation or  exposed metal?

Yes

Check complete

Model 9754 CLAMP ON NOISE SENSOR

Is the 3145-20 chassis completely free of  damage?

Discontinue use and contact the store where you bought the instrument, or your closest HIOKI dealer or business office.

Yes

Are the cables free of any torn insulation or exposed metal?

Yes

Does the "HIOKI" logo appear on the screen when the power is turned on?

Yes

Model 3145-20 NOISE HiLOGGER

Is the clamp free from any cracks or damage?

Is the logging screen or monitor screen  displayed after startup?

2.8 Pre-Operation Inspection

Before beginning measuring, check the following points.

Communication lines

Electrical lines

Ground lines

Monitor screen

Logging screen

Waveform display

Bar graph display

Measurement Chapter 3

• The maximum input voltage is 5 V peak. Attempting to measure voltage in excess of the maximum input could destroy the instrument and result in personal injury or death.

• The maximum rated voltage between input terminals and ground is 5 V. Attempting to measure voltages exceeding 5 V with respect to ground could damage the instrument and re sult in personal injury.

Clamp the Clamp on Noise Sensor to the place to be measured on the communication line, power line or ground line. With monitor display, the measured values of each band * are shown as a bar graph. With logging measurement, change of the measurem ent values over time can be displayed and this data saved to a PC card.

Chapter 3 Measurement

* Band: the frequency band of the measured waveform.

Begin measurement.

Complete measurement.

Set automatic save. ( p. 82)

Set the alarm function

( p. 56)

Perform monitor measurement.

Check the current input

Monitor measurement ( p. 43)

Set the time axis.

Record changes over time

Set the recording time.

( p. 77)

Set the recording interval.

Set the measurement range.

Display the logging screen.

Logging Measurement ( p. 45)

To initialize settings, refer to "7 .3. 3 Syste m Reset" (

 p. 129).

Pre-measurement preparations

( p. 25)

Set the alarm function. ( p. 56)

Set the measurement range.

Display the monitor screen.

Pre-measurement preparations

( p. 25)

Set the input type. ( p. 74)

3.1 The Measurement Process

The instantaneous values for each band are displayed on the left side of the screen, and the level meter is displayed on the right.

The peak values for each band are displayed on the left side of the screen, and the level meter is displayed on the right.

The peak value during monitor measurement is the peak value from the time of switching to monitor display until the present. When switching from the logging screen back to the monitor screen, the peak value will have been cleared. The peak value is also cleared by pressing

3.2 Check the Current Input (Monitor Measurement)

3.2 Check the Current Input  (Monitor Measurement)

The measurement values for each individual band (15kHz, 70kHz, 250kHz, 1MHz, 5MHz, 20MHz, 60MHz) can be checked on the screen. The data cannot be saved.

1. Make preparations for measurement referring to "Chapter 2 Measurement

Preparations" ( p. 25).

2. Set the input type to [Current ] or [Voltage] on the Set up screen. ( p. 74)

3. Press to display the instantaneous values.

Chapter 3 Measurement

4. Press to display the peak values.

Selectable ranges: 200mA, 2A, 20A As a general reference, select 200mA for

communications, 2A for power supply and 20A for lightning surge.

When checking using voltage levels, set the input type to "Voltage" on the Set up screen. (

 p. 74)

Set the range to 10mV, 100mV or 1V.

3.2 Check the Current Input (Monitor Measurement)

5. Press to select the range.

The noise measurement range differs depending on the current or voltage range selected. See the chart below.

Measurement object

Current (When using the 9754)

Voltage

Measurement range

20 A 2 A 200 mA 1 V 100 mV 10 mV

Measurable noise range 28 A

to 200 mA

P-P

2.8 A

P-P

280 mA

1.4 V

P-P

140 mV 14 mV

to 20 mA

P-P

to 20 mV

P-P

to 0.2 mV

P-P

to 2 mA

to 2 mV

P-P

"O.F." display

(Overflow display) If the measured value exceeds the upper value of the selected range, the numerical value on the left side of the screen will become "O.F."

"U.F." display

Increase the range in such a case. (Underflow display)

If the measured value is lower than the lower value of the selected range, the numerical value on the left side of the screen will become

"U.F." Decrease the range in such a case.

To sound an alarm when the measurement value exceeds the set value:

Set the alarm function. Refer to "4.5 Using the Alarm Function" ( p. 56).

Selectable ranges: 200 mA, 2 A, 20 A As a general reference, select 200mA for

communications, 2A for power supply and 20A for lightning surge.

When checking using voltage levels, set the input type to "Voltage" on the Set up screen. (

 p. 74)

Set the range to 10mV, 100mV or 1V.

3.3 Record Changes Over Time (Logging Measurement)

3.3 Record Changes Over Time  (Logging Measurement)

With logging measurement, the change over time of the measurement values at each band (15kHz, 70kHz, 250kHz, 1MHz, 5MHz, 20MHz and 60MHz) can be viewed.

1. Make preparations for measurement referring to "Chapter 2 Measurement

Preparations" ( p. 25).

2. Set the input type to [Current ] or [Voltage] on the Set up screen. ( p. 74)

3. Press to display the logging full screen, and to select the range.

Chapter 3 Measurement

• The noise measurement range differs depending on the current or voltage range selected. See the left chart.

• Upon starting a new logging session, previously logged and recorded data will be automatically deleted from the internal memory. Be sure to save any required measurement data to the PC Card before starting a new logging session.

Selectable ranges: 

1s, 2s, 5s, 10s, 20s, 30s, 60s

Selectable ranges: 

2s, 5s, 10s, 20s, 30s, 1min, 2min, 5min, 10min, 20min, 30min,  1h, 2h, 5h, 10h, 12h, 1d

3.3 Record Changes Over Time (Logging Measurement)

4. Press to select the recording interval.

5. Press to change the time axis.

The selectable range of the time axis differs depending on the recording

l setting. See the chart below.

interva

Recording  interval

10s

20s

30s

60s

The range, recording interval and time axis can also be set with the Set up scre p. 71).

The range and recording interval cannot be changed during logging measurement.

Possible time axis settings 2s, 5s, 10s, 20s, 30s, 1min, 2min, 5min, 10min, 20min,

30m

in, 1h, 2h, 5h, 10h, 12h, 1d

10s, 20s, 30s, 1min, 2min, 5min, 10min, 20min, 30min,  1h, 2h, 5h, 10h, 12h, 1d

20s, 30s, 1min, 2min, 5min, 10min, 20min, 30min, 1h, 2h, 5h, 10

h, 12h, 1d

1min, 2min, 5min, 10min, 20min, 30min, 1h, 2h, 5h, 10h, 12h, 1

2min, 5min, 10min, 20min, 30min, 1h, 2h, 5h, 10h, 12h, 1d

en. Refer to "Chapter 5 Setting the Measurement Conditions" (

Selectable items

Explanations

OFF Does not save data.

3145 Form

Auto saves in binary format readable by the instrument and the "DATA VIEWER for 3145" software on the included CD.

Text

Auto saves in text format readable by personal computer spreadsheet programs. (Cannot be read by the 3145-20)

3.3 Record Changes Over Time (Logging Measurement)

6. In order to save data to the PC card simultaneously while measuring, press

to open the Set up screen.

When using a new PC card for the first time, initialize the PC card.

7. Press to move the flashing cursor to [Auto Save] , and press to

open the selection window.

Chapter 3 Measurement

8. Use the up and down / keys to select [3145 Form], and press to

set.

Normally, the save mode is set to [Normal], [Full]. This setting saves a wave file for each measurement, then stops measurement when the PC card becomes full. To perform detailed settings, refer to "6.1.3 Save Mode" (

• By setting auto save to "Text", after completion of measurement the

• By setting auto save to OFF, data is saved in the 3145-20 internal

Setting the recording time:

Set the recording time to [Time] on the Set up screen. Refer to "5.5 Setting the Recording Time" ( p. 77).

To sound an alarm when the measurement value exceeds the set value:

Set the alarm function. Refer to "4.5 Using the Alarm Function" ( p. 56).

data which remains in internal memory is auto-saved.

emory (32MB). Please note that when the internal memory becomes

m full, old data is erased. Data in the internal memory can be saved to PC card following measurement. ( p. 91)

 p. 84).

( p. 90)

Logging latest value display

Logging peak value display

3.3 Record Changes Over Time (Logging Measurement)

9. Press to commence logging measurement.

If auto save mode is set to [Ref. Time], when starting measurement the "Sync fixed time“ message is displayed until the recording interval synchronizes to reference time.

10.Press to view the latest value. Press to view the peak value.

If "O.F." or "U.F." is displayed on the screen, then the measurement value is outside of the measurement range. Please change the range.

11.Press twice to stop logging measurement.

If the recording time has been specified and the recording ti me expires, then logging measurement automatically stops.

3.3 Record Changes Over Time (Logging Measurement)

• If the auto save setting is OFF in the Set up screen, when commencing a new measurement after a prior measurement the recorded data in the internal memory is erased. To retain the data, use the PC card screen to save it to PC card. Refer to "6.3 Saving Data af ter Me asure ment" ( p. 91).

• If power is interrupted before the first data refresh, no data is stored, and a file is created with zero bytes.

• When the recording period is set to [Cont] (Continuous) and automatic saving is set to [Text], the data remaining on the internal mem- ory will be saved automatically.

• During automatic saving, if an abnormality occurs on the PC Card while recording, one of the following messages appears near the bottom of the screen.

Messages Descriptions

No PC Card

PC Card has error

PC Card is full

Appears when no PC Card is installed in the PC Card slot.

Appears when a fault occurs on the PC Card, and when recording is not possible.

Appears when the available space on the PC Card reaches or falls below the specified amount. Be sure to stop measurement before replacing the PC card. If the PC card is removed during measurement the data may be damaged. This message does not appear when deleting and saving files.

Chapter 3 Measurement

3.4 "O.F." Display and "U.F." Display

If the measurement value for each frequency wave range is lower than the selected measurement range, "U.F." (Underflow) will be displayed. Alternatively, if the measurement value for each frequency wave range is higher than the selected measurement range, "O.F." (Overflow) will be displayed.

"O.F." (Overflow) display will also occur if the input value exceeds the measu

rement range. In the case of "O.F." display, change the range. If overflow occurs during logging measurement, the "O.F." marker will be displayed at the top of the graph display screen for the section where the

overflow occurred. Also, the icon is displayed in the upper left of the screen. The icon remains displayed during the logging peak value

or the monitor peak value screen.

screen

Useful Functions Chapter 4

The 3145-20 NOISE HiLOGGER has the following useful functions. Please make use of them as necessary.

Functions Logging Monitor

"4.1 View the Latest Logging Measurement Value or Peak Value" ( p. 52)

"4.2 Check Using a Bar Graph (Monitor Measurement)" ( p. 52)

"4.3 View Past Waveforms (Scroll Function)" ( p. 53)

"4.4 A/B Cursor Measurement" ( p. 55) Available --

"4.5 Using the Alarm Function" ( p. 56) Available Available

"4.6 Adding Event Marks to Waveforms" ( p.

66)

"4.7 Highlighting a Specific Band" ( p. 68) Available --

"4.8 Preventing Malfunctions (Key Lock)" ( p. 69)

"4.9 Saving the Display Screen to PC Card (Screen Capture)" ( p. 70)

Available --

-- Available

Available --

Available Available

Chapter 4 Useful Functions

Displays the latest value on the left side, and the waveforms on the right side of the screen.

Displays the peak value on the left side, and the waveforms on the right side of the screen.

Displays the instantaneous values on the left side, and a bar graph on the right side of the screen .

Displays the peak values on the left side, and the bar graph on the right side of the screen.

4.1 View the Latest Logging Measurement Value or Peak Value

4.1 View the Latest Logging Measurement V alue or Peak Value

4.2 Check Using a Bar Graph  (Monitor Measurement)

When saving a file there may be a delay before the graph is displayed. You can clear the peak value during monitor measurement by pressing

. When moving to the screen other than the monitor screen, the

peak value will be cleared.

4.3 View Past Waveforms (Scroll Function)

Scroll Left

Display

4.3 View Past Waveforms (Scroll Function)

Waveforms on the Logging screen can be scrolled horizontally.

4.3.1 Scrolling the Waveform

1. Press and switch the position to [SCRL].

Chapter 4 Useful Functions

2. Press to scroll the waveform.

Scroll the waveform fast. : or

Move to the head of the data stored in instrument memory. : and

Move back to the current waveform. : and

Instrument Memory

(Max. Recording Time)

Display

Erased data

Recording Data

Display

Instrument Memory

(Max. Recording Time)

4.3 View Past Waveforms (Scroll Function)

4.3.2 Auto Scrolling

Holding the for five seconds activates automatic waveform scrolling ("Auto

Scroll" is displayed). Press any key to cancel auto scrolling.

• During measurement auto scroll cannot be performed.

• The amount of time which can be saved (maximum recording time) in the instrument's internal memory differs depending on the recording interval setting, so please refer to "The relationship between recording interval and maximum recording time"( p. 78).

• When the recording time is when the instrument's internal memory capacity is exceeded. By scrolling the waveform past waveforms are displayed on the display screen, but take note that the data may not be saved in internal memory.

• When the recording time is

[Cont] (Continuous), old data is erased

[Time], old data is not overwritten.

The values read by the A cursor

Full record of internal memory

Displayed waveform

A Cursor position

B Cursor position

Alarm 0

Alarm 1: The alarm state occured

4.4 A/B Cursor Measurement

Measurement data at a particular position on a waveform can be read using the A-B cursors. The A-B cursor operations are available while measuring. For the values read by the A and B cursors, values outside the measur ement r ange are d isplayed as "O.F." or "U.F."

1. Press and switch the position to [CSR A] or [CSR B].

2. Press to move the cursor and read the measurement values.

Chapter 4 Useful Functions

(When the alarm function is ON)

(Logging screen shown here)

4.5 Using the Alarm Function

If the measurement values at each individual band exceed the alarm judgment values, the following actions are taken as notification.

• The alarm state notification icon is displayed on the screen.

• The alarm sound sounds

• A signal is output via the TRIG OUT terminal (LOW active)

• An email is sent to computer or cellular phone (only available during logging measurement) Refer to the "Communications" instruction manual on the included CD.

4.5.1 Settings on the Logging Screen or the Monitor Screen.

1. Press to display the submenu.

2. Press to move the blinking cursor to [Alarm], and press to open

the selection window.

3. Press / to select [ON], and press to set.

4. Press to move the blinking cursor to [Beep], and press to open the

selection window.

5. Press / to select the alarm sound as ON or OFF, then press to set.

6. Press / to select the band for which to set the alarm.

The band for setting the alarm

: The instrument is not in alarm state.

: The instrument is in alarm state.

The time period when the alarm state occurred.

4.5 Using the Alarm Function

7. Press to move the blinking cursor to the reference value position, and

press to set it to ON.

8. Press to move the blinking cursor to the value position, and press to

open the selection window.

9. Press / to select the reference value, and to set.

If the compensation setting is OFF, then the reference value will be tre ated as the judgment value. If the measured value exceeds the judgment value, the instrument en ters al arm state. To compensate the reference value to calculate the judgment value, refer to the next page to make the setting. To continue the state of alarm, set the alarm conti nue function to ON on the Set up screen. (

 p. 59)

Chapter 4 Useful Functions

10.When performing logging measurement, press to commence measure-

ment.  In the case of monitor measurement, press to display the monitor

screen.

• The alarm judgment takes place every recording interval during logging measurement, or every 100 ms during monitor measurement.

• During logging measurement, the alarm judgment takes place every recording interval even if the monitor screen is displayed.

Selectable items

Explanations

Judgment Value =  Reference Value x Gain + Offset

OFF

The reference value is the judgment value.

4.5 Using the Alarm Function

Set the compensation value

1. Press to move the blinking cursor to [Adj.], and press to open the

selection window.

2. Press / to select [ON], and press to set.

3. Press to move the blinking cursor to gain value, and press to

open the selection window.

4. Press / to select the gain value, and to set.

5. Press to move the blinking cursor to offset value, and press to

open the selection window.

6. Press / to select the offset value, and to set.

Selectable items

Explanations

Turns the alarm function ON.

OFF Turns the alarm function OFF.

4.5 Using the Alarm Function

4.5.2 Setting on the Set Up Screen

1. Press to open the Set up screen.

2. Press to move the blinking cursor to [Alarm], and press to open

the selection window.

Chapter 4 Useful Functions

3. Press / to select [ON], and press to set.

Selectable items

Explanations

If the measured value exceeds the alarm judgment value, the alarm state is continued.

OFF

The alarm state will not continue.

4.5 Using the Alarm Function

Set the time to continue the alarm

When alarm continue is set to ON, the alarm output continues even after one instance of exceeding the alarm judgment value. Alarm output is stopped by stopping measurement.

1. Press on the Set up screen to move the blinking cursor to [Hold], and

press to open the selection window.

2. Press / to select On or Off, and press to set.

To cancel, press .

Selectable items

Explanations

When the measurement value exceeds the alarm judgment value, the alarm sound sounds.

OFF

The alarm sound does not sound.

4.5 Using the Alarm Function

Set the alarm sound

If the alarm sound is set to ON, when the alarm judgment value is exceeded the alarm sound will be output from the instrument's internal speakers.

1. Press on the Set up screen to move the blinking cursor to [Beep], and

press to open the selection window.

Chapter 4 Useful Functions

2. Press / to select On or Off, and press to set.

To cancel, press .

• The alarm sound can be set via submenu from the logging screen or the monitor screen. The submenu is displayed by pressing .

• As the Set up screen cannot be displayed during logging measurement, please set using the submenu.

Input type Setting range

Current

28.0 A to 2.00 mA

Voltage

1.40 V to 100

V

4.5 Using the Alarm Function

Set the alarm reference value

This reference value is used as the alarm function judgment value. It will be used as is for the alarm judgment value if the compensation function is OFF. If the compensation function is ON, the compensated reference value will be the judgment value.

1. Press on the Set up screen to move the blinking cursor to the position

of the band for which to set the alarm.

2. Press to check.

3. Press to move the blinking cursor to reference value and press to

open the selection window.

4. Press / to select the reference value, and to set.

To cancel, press .

5. To set the alarm for other bands, repeat the above steps 1 through 4.

Alarm judgment will be performed only for the checked bands. Uncheck any bands for which alarm judgment is not desired.

Selectable items

Explanations

Judgment Value =  Reference Value x Gain + Offset

OFF

The reference value is the judgment value.

Setting range

×1 to ×100

4.5 Using the Alarm Function

Set the compensation value

To use the alarm reference value as the judgment value, set compensation to OFF. Alternatively, to calculate the judgment value by compensensating the reference value, turn compensation ON and set the gain and offset.

1. Press on the Set up screen to move the blinking cursor to [Adj.], and

press to open the selection window.

Chapter 4 Useful Functions

2. Press / to select On or Off, and press to set.

3. Press to move the blinking cursor to gain value, and press to

open the selection window.

For example, selecting "x 3" will make the judgment value equal to three times the reference value.

4. Press / to select the gain value, and to set.

Setting range

0.00 A to 28.0 A

4.5 Using the Alarm Function

5. Press to move the blinking cursor to offset value, and press to

open the selection window.

6. Press / to select the offset value, and to set.

To cancel, press .

(Monitor instantaneous screen shown here)

4.5 Using the Alarm Function

4.5.3 T ake the Alarm Reference Value  (Monitor Screen)

The monitor screen measurement value can be set to the alarm re ference value. If the input value exceeds the alarm judgment value, the instrument enters alarm state.

1. Check that the copy key function on the System Env screen is set to "Alarm

capture". ( p. 116)

2. Press to take the current measurement value as the reference value. 

Press to take the maximum value (peak bar value) as the reference value.

Chapter 4 Useful Functions

3. Press to display the confirmation message, then press to set.

If the input value exceeds the judgment value, the instrument enters alarm sta te.

Each event mark is given a number in the order by which it is marked.

EXT TRIG Terminal (External Trigger)

4.6 Adding Event Marks to Waveforms

By using the event mark function, an event mark can be added to any data during measurement (up to 100 marks maximum). Event marks can also be searched.

4.6.1 How to Add an Event Mark

1. Press to commence logging measurement.

2. Press to add an event mark at the desired moment.

Adding an event mark via external signal input

Event marks can be added by inputting an external signal into the EXT TRIG input on the lower face of the 3145-20. To do this, set the external trigger input on the System Env screen to "Event". Refer to "7.1.5 External Trigger Input (Event Marker)" ( p. 114) and "Appendix 2.1 EXT TRIG Terminal" ( p. A2).

4.6 Adding Event Marks to Waveforms

4.6.2 Searching Event Marks

Each event mark can be searched.

1. Press to display the submenu.

2. Press to move the blinking cursor to the event number, and press

to open the selection window.

3. Press / to select the event number, and to set.

Chapter 4 Useful Functions

4. Press to move the blinking cursor to [Jump], and to search for the

event number.

The highlight band The color of all bands other than the selected

band becomes gray.

4.7 Highlighting a Specific Band

In order to more easily view a specific band, all bands other than the selected one are displayed as gray.

1. Press to enter highlighting display.

2. Press / to select the band to be highlight.

3. Press again to return the display to normal.

• When displaying the A/B cursors, only the highlight band value will be displayed.

• This function is only valid when the screen color scheme is set to color 1 or 2.

Press simultaneously for approximately 3 seconds or more.

4.8 Preventing Malfunctions (Key Lock)

This feature disables input from all of the 3145-20's front panel keys. It prevents malfunctions during measurement.

1. Press and simultaneously for approximately 3 or more seconds to place

the instrument in key lock mode.

On the logging screen and the monitor screen, [KEY LOCK] is displayed in the upper left. 

Chapter 4 Useful Functions

On screens other than the logging screen and monitor screen , [KEY LOCK] is displayed at the bottom of the screen.

2. To cancel Key Lock, press and again for approximately 3 seconds or

more.

4.9 Saving the Display Screen to PC Card (Screen Capture)

The display screen can be saved to PC card.

1. Check that a PC card is inserted into the 3145-20.

2. Display the screen to be saved.

To save the monitor screen, set the copy key in the System Env screen to [Screen capture]. The initial setting is [Alarm capture]. (

 p. 116)

3. Press .

The display screen is saved to the PC card.

4. Press to check the saved file.

• The color for saving the screen (color or grayscale) can be changed on the System Env screen.

• The saved file cannot be read by the 3145-20.

Setting the Measurement 

Waveform color (

 p. 79)

Press this key to open the Set up screen.

Current range /Voltage range (

 p. 75)

Comment  (

 p. 72)

Input (

 p. 74)

Interval (

 p. 76)

Rec. Time (

 p. 77)

Clock (setting can be changed with the System Init screen)

On the logging screen or the monitor screen, pressing will display the

submenu for setting the measurement conditions.

Submenu

Alarm function (

 p. 56)

Auto Save (

 p. 82)

The following measurement conditions can be set with the Set up screen.

Conditions

Chapter 5

Chapter 5 Setting the Measurement Conditions

Comment input area

Character selection area

Explanation of shortcut keys

Comment input position

5.1 Inputting Comments

By inputting comments, they will be saved along with the logging measurement data onto the PC card. It can be useful to enter information such as the measurement location. Set the comments only as deemed necessary. Measurement will not be effected even if no comments are entered.

1. Press to open the Set up screen.

2. Press to move the blinking cursor to the comment input position.

3. Press to open the comment input window.

4. Press to move the cursor to the character to be input, and press to

select.

To erase a character, press . Refer to the following page for more a detailed explanation of the input method.

5. Once the comment is completely entered, press to move the blinking

cursor to [OK].

6. Press to confirm the comment.

To cancel, move the blinking cursor to [CANCEL] and press .

5.1.1 Comment Input Method Details

Comment input area

Move the cursor to the beginning: Move the cursor to the end:

Move the cursor one space to the left or right:

Character selection area

Move the cursor: Character input:

(1) (2)

(3)

(4)

(5) (6)

Comment input window

5.1 Inputting Comments

When the cursor is moved to (1) - (7) in the comment input window and is pressed, the following actions take place. Alternatively, the shortcut keys effect the same actions.

However these are only valid within the comment input window.

Action Description

(1) Write mode

(2) Delete Erases the character at the cursor.

(3) Backspace

(4) Move input position

(5) Cancel

(6) Confirm Confirms the comment input.

Can be toggled between [INS] and [OVER] (Overwrite).

Erases the character one space to the left of the cursor. When the cursor is at the first character, backspace acts the same as delet e.

Moves the input position to the right or le ft within the comment input window.

Returns to the Set up screen from the comment input window.

Shortcut key

Chapter 5 Setting the Measurement Conditions

Selectable items

Explanations

Current

Select when using the 9754 CLAMP ON NOISE SENSOR for measurement.

Voltage

Select when using products other than the 9754 CLAMP ON NOISE SENSOR for measurement.

5.2 Setting the Input Type

Depending on the type of object being measured, you can choose between [Current] and

[Voltage] (general purpose) input. Select [Voltage] for using general purpose input, such as

measuring radiant noise from antennae or measuring noise with a magnetic field probe.

1. Press to open the Set up screen.

2. Press to move the blinking cursor to [Input], and press to open

the selection window.

3. Press / to select the input type, and to set.

To cancel, press .

As a general rule, select 200mA for communications , 2A for power supply and 20A for lightning surge noise measurement.

Input type Selectable ranges

Current

20 A, 2 A, 200 mA

Voltage 1 V, 100 mV, 10 mV

5.3 Setting the Range

Set the current (or voltage) range. The possible measurement range differs depending on the selected range. Refer to "9.2 Input Area Specifications" ( p. 140) regarding the instrument's ran ge configuration and measurement range. If the input value exceeds the measurement value, "O.F." (Overflow) will be displayed. Alternatively, if the input value is too low for the measurement range, "U.F." (Underflow) will be displayed.

1. Press to open the Set up screen.

2. Press to move the blinking cursor to [Current Range] (Voltage Range),

and press to open the selection window.

Chapter 5 Setting the Measurement Conditions

3. Press / to select the range, and to set.

To cancel, press .

Recording interval 1s, 2s, 5s, 10s, 20s, 30s, 60s

5.4 Setting the Recording Interval

Sets the interval between each time data is taken. Please select a recording interval which suits the object being measured. Increasing the recording interval causes the maximum recording time to be increased. Regarding the maximum recording time, refer to "The relationship between recording interval and maximum recording time"( p. 78)."

1. Press to open the Set up screen.

2. Press to move the blinking cursor to [Interval], and press to open

the selection window.

3. Press / to select the recording interval, and to set.

To cancel, press .

Selectable items

Explanations

Time

The recording time can be set to any value.

Cont

Continuous measurement between the start of measure-

ment and pressing twice can be performed.

5.5 Setting the Recording Time

Sets the amount of time to record a single logging measurement. The recording time is limited based on the recording interval.

1. Press to open the Set up screen.

2. Press to move the blinking cursor to [Rec. Time], and press to

open the selection window.

Chapter 5 Setting the Measurement Conditions

3. Press / to select the recording time, and to set.

To cancel, press .

Selectable items

Explanations

Day

0 to 970

Hour 0 to 23

Minute 0 to 59

Second 0 to 59

5.5 Setting the Recording Time

4. If set to [Time], continue on to set the recording time. 

Press to move the blinking cursor to the time to be set, and press to open the selection window.

5. Press / to select the recording time, and to set.

To cancel, press .

• When "Continuous" is selected, the recording time setting will be ignored.

• When auto saving measurement data to PC card, if the measurement data exceeds the maximum recording time, please set to tinuous).

• If the measurement time exceeds the maximum recording time, the internal memory will be erased starting with the oldest data.

The relationship between recording interval and maximum recording time

Recording interval Maximum recording time (32 MB internal memory) 1s 16 days 4 hours 21 minutes 41 seconds 2s 32 days 8 hours 43 minutes 22 seconds 5s 80 days 21 hours 48 minutes 25 seconds 10s 161 days 19 hours 36 minutes 50 seconds 20s 323 days 15 hours 13 minutes 40 seconds 30s 485 days 10 hours 50 minutes 30 seconds 60s 970 days 21 hours 41 minutes 0 seconds

[Cont] (Con-

5.6 Setting the Waveform Color

Selectable colors Green, yellow, red, light blue, purple, blue

and white (For color display)

5.6 Setting the Waveform Color

Sets the waveform color for each band.

1. Press to open the Set up screen.

2. Press to move the blinking cursor to waveform, and press to open

the selection window.

Chapter 5 Setting the Measurement Conditions

3. Press / to select the waveform color, and to set.

To cancel, press .

5.6 Setting the Waveform Color

Saving and 

Yes

Save during

measurement?

Set auto save on the Set up screen to [3145 Form].

Format for saving?

Plan before

measurement to save?

Set auto save on the  Set up screen to [Text].

Save from the PC card screen  after measurement.

( p. 82)

(

 p. 90)

(

 p. 91)

Yes

3145-20 Format

Text Format

Reading Data

Logging measurement data and setting data can be saved to PC card to read by the 314520 NOISE HiLOGGER or by personal computer when needed.

• Insert the PC card beforehand. When using a newly purchased PC card for the fist time, be sure to initialize it.

• The instrument's PC card can be externally accessed via FTP, but do

ot access and manipulate the files simultaneously with FTP or the

n 3145-20 and via telnet. This may cause unwanted file operations to occur.

Chapter 6

( p. 38)

Saving measurement data

Chapter 6 Saving and Reading Data

Saving

formats

Setting data Data such as the range, recording time, and time axis data can be

3145 Form

Text

saved. As needed, the data can be loaded by the 3145-20 and measurement can repeatedly be performed under the same conditions. (File extension: HNS)

Auto saves in binary format readable by the instrument and the "DATA VIEWER fo r 3145" software on the included CD.

Auto saves in text format readable by personal computer spreadsheet programs. (Cannot be read by the 3145-20.)

Explanations

File

extension

HNW

CSV

Selectable items

Explanations

OFF

Does not save data.

3145 Form

Auto saves in binary format readable by the instrument and the "DATA VIEWER for 3145" software on the included CD.

Text

Auto saves in text format readable by personal computer spreadsheet programs. (Cannot be read by the 3145-20.)

6.1 Saving Data during Measurement

6.1.1 Select "3145 Form"

Set auto save on the Set up screen to [3145 Form] When measurement is commenced, the data is automatically saved to the PC card.

1. Press to open the Set up screen.

2. Press to move the blinking cursor to [Auto Save], and press to

open the selection window.

3. Press / to select [3145 Form], and press to set.

To cancel, press .

• The data save interval is one minute.

• Data saved in the “3145 Form” is readable by the 3145-20 and the "DATA VIEWER for 3145" software on the included CD.

• When using text format, save after measurement completion.

6.1 Saving Data during Measurement

6.1.2 Filenames

By inputting a filename, auto save files will be saved with that name.

1. Press on the Set up screen to move the blinking cursor to the filename

location.

2. Press to open the filename input window.

Chapter 6 Saving and Reading Data

3. Press to move the cursor to the character to be input, and press to

select.

Press to erase a character. Refer to "5.1 Inputting Comments" (

 p. 72) regarding the input method.

4. Af ter completing the filename input, press / to move the cursor to [OK].

5. Press to confirm the filename.

To cancel, move the blinking cursor to [CANCEL] and press .

• Continually saving multiple times adds successive numbers to the filenames. Example: 3145D, 3145D001, 3145D002, 3145D003...

• If a filename has not been entered, the filename will default to "NONAME". Example: NONAME, NONAME01, NONAME02, NONAME03...

• Filenames using all 8 characters will appear as follows. Example: ABCDEFGH, ABCDEFG1, ABCDEFG2, ABCDEFG3...

Selectable items

Explanations

Normal

Carrying out one measurement creates one file.

Interval

The file is created by dividing the data in a period of time (Partition length) from the starting measurement.

Ref. Time

Set the reference time in 24 hours and create a file by dividing the data in a period of time (Partition time) from the fixed reference time.

6.1 Saving Data during Measurement

6.1.3 Save Mode

Normally, the save mode is set to "Normal", "Full".

1. Press on the Set up screen to move the blinking cursor to [File], and

press to open the selection window.

2. Use the up and down / arrow keys to select the method of wave mea-

surement, and press to set.

Normally, select "Normal". When dividing a file per time and saving, select "Interval" or "Ref. Time".

Partition length

8:30

9:30

10:30

11:30

12:30

13:30

14:30

15:30

7:30

(Starting measurement)

Segmental time

7:30

8:00 (Reference time)

10:00

11:00

12:00

13:00

14:00

15:00

9:00

(Starting measurement)

Selectable items

Explanations

Full

If the PC card reaches full capacity, the save will be canceled.

Endless

If the PC card reaches full capacity, the earliest data in the recording file is overwritten. The latest data will be saved up to the file capacity.

Delete

At the beginning or in the midst of auto save if the available space on the PC card is not sufficient, then the oldest file in the folder currently being saved to will be erased. If it becomes impossible to erase files, the state will become the same as endless save.

6.1 Saving Data during Measurement

<Example> Wave file

When selecting "Interval" and the partition length is 1 hour

When selecting "Ref. Time", reference time 8:00 and the partition length is 1 hour

3. Press to move the blinking cursor to the side, and to open the selec-

tion window.

4. Press / to select the PC card saving method, and press to set.

[Full] is normally selected.

Chapter 6 Saving and Reading Data

Folder

The oldest data is overwritten with the new data, and measurement continues.

File being saved

Folder

The oldest file in the folder is erased. A new file is then created and the data is saved.

File being saved

(New)

6.1 Saving Data during Measurement

Behavior when the PC card reaches full capacity.

When [Endless] is selected

When [D

elete] is selected

The conditions for erase save are as follows.

• Only files in the same folder in which the auto save file is being saved are deleted.

• Files with the extension ".HNW" are recognized as waveform files. Even if a file with the ".HNW" extension is not a waveform file, it will be recognized as one and may be deleted.

• The age of a file is determined by the file's time stamp (when it was cre

ated).

• If there is only one or less recorded file in the folder, no file will be erased. If the size of the file to be erased is too large relative to the capacity of the PC card, it may not be able to be erased. As a general rule, a single file should take up less than 1/4 the capacity of the PC card.

• No more than 10,000 files may be referenced in a single folder. If that num

ber is exceeded, the oldest file may be erased.

• When saving in segments, the instrument acts the same as if normal non

-segmented auto save is executed multiple times. In other words, out of a set of segmented files created from a single measurement, the one created first will be erased.

6.1 Saving Data during Measurement

Selectable items

Explanations

Day 0 to 30

Hour 0 to 23

Minute 0 to 59

When selecting “Interval”

When selecting [Interval], the length of data to partition can be set.

1. Press to move the blinking cursor to [Length], and press to open

the selection window.

2. Press / to select the length of data to partition, and press to set.

To cancel, press .

Chapter 6 Saving and Reading Data

Selectable items 1 min, 2 min, 5 min, 10 min, 15 min, 

20 min, 30 min, 1 hour, 2 hour, 3 hour,  4 hour, 6 hour, 8 hour, 12 hour, 1 day

Selectable items

Explanations

Hour 0 to 23

Minute 0 to 59

6.1 Saving Data during Measurement

When selecting “Ref. time”

When selecting [Ref. Time], set the length of the data partition and the reference time.

1. Press to move the blinking cursor to [Time], and press to open

the selection window.

2. Press / to select the length of the data partition, and press to set.

3. Press to move the blinking cursor to [Ref. Time], and press to open

the selection window.

4. Press / to select the reference time, and press to set.

To cancel, press .

6.1 Saving Data during Measurement

6.1.4 Specify the File Save Target

The folder in which files are saved during auto save is set in the following manner.

1. Press to open the PC card screen.

2. Press / to select the folder to move to.

To move one folder up, select the ". ." folder.

3. Press to move to the folder. Each time the key is pressed, it toggles

between one level up and down.

4. Move to the logging screen and begin measurement.

The measurement data is auto saved to the set folder. If auto save is set to OFF, auto save will not be performed.

• If the root folder is selected and there is a /LOGGER/ folder, files will be saved in the /LOGGER/ folder. PC cards formatted with the 314520 contain a created /LOGGER/ folder. If there is no /LOGGER/ folder, files will be saved to the root folder.

• The root folder has an upper limit to the number of files which can be saved in it. When saving numerous files, please create new folders to save them in.

• When a folder has been moved to in the PC card screen, that folder becom

es the auto save destination.

Chapter 6 Saving and Reading Data

Selectable items

Explanations

OFF

Does not save data.

3145 Form

Auto saves in binary format readable by the instrument and the "DATA VIEWER for 3145" software on the included CD.

Text

Auto saves in text format readable by personal computer spreadsheet programs. (Cannot be read by the 3145-20.)

6.2 Planning to Save Text after Measurement

Set auto save to [Text] on the Set up screen. When measurement is completed, the data remaining in the instrument's internal memory (32 MB) will be automatically saved to the PC card. Data saved in the text format can be read by software such as personal computer spreadsheet programs. (It cannot be read by the 3145-20.)

1. Press to open the Set up screen.

2. Press to move the blinking cursor to [Auto Save], and press to

open the selection window.

3. Press / to select [Text], and press to set.

To cancel, press .

4. Set the file name. ( p. 83)

5. Upon completion of logging measurement, the data is saved in text format to

the PC card.

Saving takes a bit of time. Take note that pressing while saving will interrupt and cancel the save.

• When the recording time is set to [Cont], the data remaining in the instrument's internal memory is auto saved. When set to "Time", it cannot be set to greater than the internal memory.

• If there is not sufficient space on the PC card, it will not be saved.

• The data which remains in the instrument (32MB of internal memory capacity) differs depending on the recording interval setting. ( p. 78)

• During text format save, data at the time of a power outage is not saved.

• Files saved in text format are comparatively larger than those saved in “3145 Form”.

• Saving in “3145 Form” is recommended.

6.3 Saving Data after Measurement

Saves measurement data and settings data to the PC card. In order to save measurement data, it must be saved to the internal memory. (If measurement data is displayed on the logging screen, then the data exists in the internal memory.)

• Up to four settings data items can be stored in the 3145-20's internal memory. Refer to

• For saving data during measurement, refer to "6.1 Saving Data during Measurement" ( p. 82).

"7.2 Setting Screen" ( p. 122).

1. Press to open the PC card screen.

2. Press / to select the [Save] command.

3. Press to open the save screen.

Chapter 6 Saving and Reading Data

Selectable items

Explanations

3145 Form

Auto saves in binary format readable by the instrument and the "DATA VIEWER for 3145" software on the included CD.

Set The settings are saved.

Te xt (for

Spread-

sheet)

Auto saves in text format readable by personal computer spreadsheet programs. (Cannot be read by the 3145-20.)

Selectable items

Explanations

ALL

Saves data for all captured waveforms.

A-B

If only the A cursor is enabled, data from the cursor to the end of input is saved. If both A and B cursors are enabled, only data between the cursors is saved.

6.3 Saving Data after Measurement

4. Press to move the blinking cursor to [Type], and press to open the

selection window.

5. Press / to select either [3145 Form] or [Text] (for spreadsheet), and

press to set.

6. Set the file name. ( p. 83)

7. Press to move the blinking cursor to [Area], and press to open the

selection window.

8. Press / to select [ALL] or [A-B].

Display the A and B cursors on the logging screen and specify the saving range first.

Selectable items

Explanations

Auto

This mode saves files with the same name by automatically appending a number after the file name. If the last file was saved with a number appended, the next file is saved with the number incremented. <Example>

TEST0001, TEST0002 . . . . .

Overwrite

This mode saves files with the same name, overwriting the previous the same namefile.

6.3 Saving Data after Measurement

9. Press to move the blinking cursor to [Same Name], and press to

open the selection window.

10.Press / to select [Auto] or [Overwrite], and press to set.

11.Press to move the blinking cursor to [Execute] , and press to exe-

cute.

To cancel, move the blinking cursor to [Back] and press .

• When it is desired to view data which has been saved in [3145 Form] with a personal computer, the "DATA VIEWER for 3145" software can be used to easily view waveforms and convert the data to CSV file for analysis in spreadsheet software. Refer to the "DATA VIEWER for 3145" instruction manual on the included CD.

• Refer to "6.7 Calculation Method for “3145 Form” Files" ( p. 106) regarding the capacity of “3145 Form” files.

Chapter 6 Saving and Reading Data

Reference for calculating the approximate saving capacity in number of days

Recording interval PC card (Capacity af

ter initializing)

9726 PC CARD 128M (120.4 MB)

Use the above chart as a reference for calculating the approximate saving capacity in number of days for the 9727 PC CARD 256M, 9728 PC CARD 512M, and 9729 PC CARD 1G. However, the longest possible save time for a single measurement is 999 days, 23 hours, 59 minutes and 59 seconds.

1s 2s 5s 10s 20s 30s 60s

60 days 120 days 300 days 1.7 years 3.3 years 5 years 10 years

6.4 Saving Settings Data

Data such as the range, recording time, and time axis data can be saved. As needed, the data can be loaded by the 3145-20 and measurement can repeatedly be performed under the same conditions. (File extension: HNS) Up to four settings data items can also be saved in the instrument's internal memory. Refer to "7.2 Setting Screen" ( p. 122).

1. Press to open the PC card screen.

2. Press / to select the [Save] command.

3. Press to open the save screen.

Hioki 3145-20 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Introduction

Verifying Package Contents

Safety Information

Operating Precautions

1.1 Product Overview

Chapter 1 Overview

1.2 Features

1.3 Measuring Princi ple

1.3.1 Monitor Measuring and Logging Measuring

1.4 Names and Functions of Parts

1.5 Display Screen

1.5.1 Screen Layout

1.5.2 Logging Screen

1.5.3 Monitor Screen

1.5.4 Icon Summary

1.5.5 Submenus

Chapter 2 Measurement Preparations

2.1 Attaching the Strap

2.2 Install the Ferrite Cores

2.3 Connecting the AC Adapter

2.4 Supplying Power with the Battery Pack

2.4.1 Installing the Battery Pack

2.4.2 Charging the Battery Pack

2.4.3 Battery Pack Life

2.5 Connect the CLAMP ON NOISE SENSOR

2.6 Turning the Power On and Off

2.7 Using the PC Card

2.7.1 Inserting the PC card

2.7.2 PC Card Initialization

2.8 Pre-Operation Inspection

Chapter 3 Measurement

3.1 The Measurement Process

3.2 Check the Current Input (Monitor Measurement)

3.3 Record Changes Over Time (Logging Measurement)

3.4 "O.F." Display and "U.F." Display

4.1 View the Latest Logging Measurement Value or Peak Value

4.3 View Past Waveforms (Scroll Function)

4.3.1 Scrolling the Waveform

4.3.2 Auto Scrolling

4.4 A/B Cursor Measurement

4.5 Using the Alarm Function

4.5.1 Settings on the Logging Screen or the Monitor Screen.

4.5.2 Setting on the Set Up Screen

4.6 Adding Event Marks to Waveforms

4.6.1 How to Add an Event Mark

4.6.2 Searching Event Marks

4.7 Highlighting a Specific Band

4.8 Preventing Malfunctions (Key Lock)

4.9 Saving the Display Screen to PC Card (Screen Capture)

Chapter 5 Setting the Measurement Conditions

5.1 Inputting Comments

5.1.1 Comment Input Method Details

5.2 Setting the Input Type

5.3 Setting the Range

5.4 Setting the Recording Interval

5.5 Setting the Recording Time

5.6 Setting the Waveform Color

Chapter 6 Saving and Reading Data

6.1 Saving Data during Measurement

6.1.1 Select "3145 Form"

6.1.2 Filenames

6.1.3 Save Mode

6.1.4 Specify the File Save Target

6.2 Planning to Save Text after Measurement

6.3 Saving Data after Measurement

6.4 Saving Settings Data