Page 1
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
User Manual
Model 381395
5MHz Dual Channel
True RMS Oscilloscope Datalogger
Visit us at www.TestEquipmentDepot.com
Back to the Extech 381395 Product Page
FUNC
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
i
Page 2
Table of Contents
1. GENERAL INFORMATION 1-1
1.1. FEATURE OVERVIEW 1-1
1.1.1. Universal SCOPE Mode 1-1
1.1.2. DATA Logger 1-1
1.1.3. Digital Multi-Meter 1-2
1.1.4. Frequency Counter 1-2
1.1.5. General 1-2
1.2. WARRANTY INFORMATION 1-3
1.3. PRECAUTIONS 1-3
1.4. MAINTENANCE 1-3
1.5. SAFETY INFORMATION: READ FIRST 1-4
1.6. SYMBOLS AND TERMS 1-4
1.7. UNPACKING THE INSTRUMENT 1-5
1.7.1. Standard 1-5
1.7.2. Options 1-5
2. PRODUCT DESCRIPTION 2-1
2.1. THE INPUT TERMINAL AREA 2-2
2.1.1. Caution (
2.1.2. Warnin g (
2.1.3. 600V MAX
2.1.4. The METER provides 4 input jacks 2-2
2.2. THE KEYS AREA 2-3
2.2.1. Turning power on and off (
2.2.2. AUTO key (
2.2.3. TRIGger key (
2.2.4. Function key (
2.2.5. Command menu keys (
2.2.6. Four arrow keys (
2.2.7. Display back light (
2.2.8. Hold key (
2.3. THE DISPLAY AREA 2-7
2.3.1. Special in di cator 2-7
2.3.2. DISPLAY depends on selected function 2-8
2.3.3. The Command Menu 2-15
) 2-2
) 2-2
2-2
) 2-3
) 2-3
) 2-3
) 2-4
) 2-4
) 2-5
) 2-6
) 2-6
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THE USB INTERFACE AND POWER INPUT TERMINAL 2-16
2.4.
2.4.1. USB INTERFACE 2-16
2.4.2. Power Adaptor Input Terminal 2-16
3. USING THE SCOPE 3-1
3.1. POWERING THE METER 3-1
3.2. DISPLAY BACKLIGHT 3-1
3.3. SELECTING “GENERAL SCOPE” IN THE MENU 3-1
3.4. SELECTING ITEMS IN SCOPE SETUP MENU 3-2
3.4.1. Set Frequency measurement for CHA 3-2
3.5. CHANGING THE GRAPHIC REPRESENTATION 3-3
3.5.1. Changing the vertical division 3-3
3.5.2. Changing the Horizontal division (Time Base) 3-3
3.5.3. Positioning the Waveform of CH A on the Screen 3-4
3.5.4. Positioning the Waveform of CH B on the Screen 3-4
3.5.5. Positioning the Trigger Point Indicator on the Screen 3-4
3.6. ACQUIRING THE WAVEFOR M 3-5
3.6.1. Recording slow signals over a Long Period of Time. 3-5
3.6.2. Selecting AC-Coupling for INPUT A 3-5
3.7. TRIGGERING ON A WAVEFORM 3-6
3.7.1. Setting Trigger mode (Tmode) 3-6
3.7.2. Setting AUTO Trigger Level 3-7
3.7.3. Setting Normal Trigger mode 3-8
3.7.4. Setting Trigger Slope 3-8
3.7.5. Changing the Trigger level Indicator 3-8
3.7.6. Making a single acquisition 3-9
3.8. STORING AND RECALLING SCREENS 3-9
3.8.1. Storing Screen 3-9
3.8.2. Recalling Screen 3-10
4. USING THE DATA LOGGER 4-1
4.1. SELECTING ITEMS IN DATA LOGGER SETUP MENU 4-1
4.1.1. Changing the Sampling Type 4-1
4.1.2. Changing the Sampling interval Time 4-2
4.1.3. Changing the Start/Stop Address 4-2
4.2. DATA LOGGER 4-3
4.2.1. Changing the Measurement Function & Range 4-4
4.3. RECALL DATA 4-4
5. USING THE DIGITAL MULTIMETER 5-1
5.1. THE DIGITAL MULTIMETER DISPLAY MODE 5-1
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5.1.1. RECORD MODE 5-1
5.1.2. RELATIVE MODE 5-1
5.1.3. COMPARE MODE 5-2
5.1.4. TREND PLOT 5-2
5.2. MEASUREMENT PROCEDURES 5-3
5.2.1. DC V 5-3
5.2.2. AC V 5-4
5.2.3. Resistance 5-5
5.2.4. Continuity 5-5
5.2.5. Frequency 5-6
5.2.6. RPM 5-6
5.2.7. Pulse Width 5-7
5.2.8. Duty 5-7
6. SYSTEM SETUP 6-1
6.1. CONFIGURE THE AUDIBLE BEEPER 6-1
6.2. AUTO POWER OFF 6-1
6.3. SET THE BAUD RATE (BPS) 6-1
6.4. CHANGE THE CURRENT DATE AND TIME 6-2
6.4.1. Setting the time 6-2
6.4.2. Setting the date Error!
Bookmark not defined.
7. SPECIFICATIONS 7-1
7.1. GENERAL SPECIFICATIONS 7-1
7.2. TECHNICAL SPECIFICATIONS 7-2
7.2.1. General Oscilloscope Function Specs. 7-2
7.2.2. Data Logger Function Specs. 7-3
7.2.3. Digital Multimeter Function Specs. 7-3
8. REMOTE PC INTERFACE 8-1
8.1. USB HID DEVICE INSTALLATION 8-1
8.1.1. System Requirements 8-1
8.1.2. Operating System 8-1
8.2. PC USB PORT CONNECTION 8-1
8.2.1. HID Device 8-1
8.3. INSTALLING WINDOWS APPLICATION SOFTWARE 8-2
8.4. RUNNING THE APPLICATION SOFTWARE 8-3
8.4.1. Oscilloscope Mode 8-3
8.4.2. DMM & Data Logger Mode 8-4
8.4.3. Display Mode for DMM & Data Logger Mode 8-5
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9. MAINTAINING THE METER 9-1
9.1. SECTION OVERVIEW
ERROR! BOOKMARK NOT DEFINED.
9.2. STATIC SAFE HANDLING 9-1
9.3. CLEANING THE METER 9-1
9.4. STORING THE METER 9-2
9.5. CALIBRATION 9-2
9.6. REPLACING AND DISPOSING OF THE LI-ION BATTERY 9-2
9.6.1. Replacing the battery pack 9-3
10. APPENDICES 10-1
10.1. TROUBLESHOOTING GUIDE 10-1
10.2. LCD STATUS INDICATION BY FUNCTION 10-2
10.2.1. Function Menu & General Scope Mode 10-2
10.2.2. Data Logger Mode 10-2
10.2.3. Multimeter / Record Mode 10-2
10.2.4. Multimeter / Relative Mode 10-3
10.2.5. Multimeter / Compare Mode 10-3
10.2.6. Multimeter / Trend Plot Mode 10-3
10.2.7. System Setup Mode 10-4
10.2.8. Trigger Setup Mode 10-4
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1. General Information
1. General Information
This section contains general Meter information. The bulleted list below outlines the section.
z Feature Overview
z Warranty Information
z Safety Information
z Symbols and Terms
z Specifications
z Unpacking the Test Tool Kit
1.1. Feature Overview
The Model 381395 is a handheld, battery-operated Oscilloscope, True RMS Data Logger
and Digital Multimeter designed and tested according to IEC Publication 1010-1 (EN 61010-
1:1993, Over voltage Category II)
This instrument features:
1.1.1. Universal SCOPE Mode
z Dual Channel with Auto Calibration
z Sampling Time
Single CH mode: 50 MS/s, Dual CH mode: 25 MS/s
z DC to 5MHz Oscilloscope bandwidth
z 16 shot waveform and setup memories
z Automatic Triggering
z Automatic setting for horizontal and vertical divisions
z Roll and Single shot modes
z Excellent internal noise reduction
z Real time Updates
1.1.2. DATA Logger
z Logger Memory: 17,000 Data Points
z Logs the following signal types: DCV, ACV, OHM, BZ, Hz, RPM, P/width, Duty
z Prints programmed intervals in Hours/Minutes/Seconds
z Appends incoming data to existing data
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1. General Information
z Sampling Rate: 0.25S/s
z Sampling intervals from 1 second to 9,999 seconds
z Sampling Mode: Peak and Sampling Time
z Built-in Real Time Clock (RTC)
z Start / Stop address setting
z Data is retained when battery is low or has been removed
1.1.3. Digital Multi-Meter
z Large 10,000 count LCD and fast 101 segment analog Bar Graph display
z Programmable Function mode: Multi display measurements
Record (Max, Min, Avg), Relative (Ref, Err), Compare (GO-NOGO) mode and Trend plot
z Real Time for MAX or MIN, elapsed time for AVG
z Meter automatically selects best range instantly (Fast Auto range)
z Data hold and run mode
z RPM, Duty cycle and Pulse width measurement
z True RMS digital Multi-meter
z Max. Voltage between Input and Ground: DC or AC 600Vrms
z 600V Overload Protection
1.1.4. Frequency Counter
z Frequency Range: 0 to 10MHz
z Accuracy: ±(0.05%+5)
1.1.5. General
z Easy to Operate
z Backlit display with Low battery indication
z USB PC interface for viewing and saving measurements and waveform data
z Auto power off (can be disabled)
z Display resolution: 132 x 128 pixels
z Designed to comply with safety standards: UL3111 and CSA C22.2 No.1010-1
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Model 381395 Version 1.0 January 2008
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1. General Information
1.2. Warranty Information
EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in parts and
workmanship for one year from date of shi pment (a six mo nth limite d warranty app lies to sensors and
cables). If it should become necessary to return the instrument for service during or beyond the
warranty period, contact the Customer Service Department at (781) 890-7440 ext. 210 for
authorization or visit our website www.extech.com
(RA) number must be issued before any product is ret urned to Extech. The sender is responsible fo r
shipping charges, freight, ins ur anc e and p ro per packagi ng t o pr event da mag e in transit. This warranty
does not apply to defects resulting fr om action of th e user such as misuse, imp roper wiri ng, operat ion
outside of specification, improper maintenance or repair, or unauthorized modification. Extech
specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and
will not be liable for any direct, indi rect, incidental or consequential damages. Extech's total liability is
limited to repair or replacement of the pr oduct. The warranty set fort h above is inclusive and no other
warranty, whether w r i tten or ora l, is expr es sed or impl i ed.
for contact information. A Return Authorization
1.3. Precautions
z Carefully read the manual before operating this device
z The contents of this manual may be amended by the manufacturer without notice
z Never dismantle the instrument
z The equipment has been tested and calibrated before delivery
z This product should be stored in a secured area
z The rear protective terminal must be connected to actual earth ground otherwise electric
shock may occur.
1.4. Equipment Maintenance
z Although the equipment is durable and weather resistant, care should be taken not to
expose it to severe impact or pressure
z Keep the equipment clear of water and damp environments
z Calibration should performed once per year
z Do not operate this instrument if it appears damaged or if it functions abnormally
z Do not use the Meter near explosive gas or vapors
z To clean, wipe the surface of the equipment with a dry and clean cloth
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Model 381395 Version 1.0 January 2008
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1. General Information
1.5. Safety Information: Read First
Warning!
Please read the following safety information before using the product. To avoid possible
electric shock or personal injury, please read and follow these guidelines carefully:
z Follow the guidelines in this manual and DO NOT use the Meter if the case is damaged
z Do not apply excessive voltage to the Multimeter. Apply voltage within the rated range
only
z Use caution when measuring voltages above 30V RMS, 42V peak, or 60V DC. These
voltages pose an electric shock hazard
z When using the probes always keep fingers behind the finger guards
z Always connect the common test leads (black) before connecting the live test leads (red),
and disconnect the live test leads (red) before disconnecting the common test leads
(black)
z Disconnect circuit power and discharge all high-voltage capacitors before testing
resistance and continuity
z Only qualified personnel should open the meter case
z When replacing fuses, use only the specified type and rating
z Do not try to operate the Meter if it is damaged. Disconnect the power from the equipment
and connect the point of purchase for return and repair information
1.6. Symbols and Terms
See explanation in manual before using this Meter. This symbol indicates hazards that
may cause damage to the instrument or may result in personal injury
This symbol indicates high voltage may be present. Use extra caution
Double Insulation (Protection Class II)
Recycling information
Equal potential inputs
High BNC Input
Earth (ground) terminal.
AC or DC
DC – Direct Current
AC – Alternating Current
Fuse
This product complies with the essential requirements or the applicable European laws
or directives with respect to safety, health, environment and consumer protections
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Model 381395 Version 1.0 January 2008
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1.7. Unpacking the Test Tool Kit
The product package is supplied with the following items:
1.7.1. Standard
z One Meter
z Two Test leads
z One Lithuim-ION Battery (installed)
z One AC Power & Rechargeable Adaptor
z One CD (PC software)
z Meter to PC USB interface cable
z One Carrying case
1. General Information
1.7.2. Options
z Rubber Holster
1-5
Model 381395 Version 1.0 January 2008
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2. Product Description
2. Product Description
A brief introduction to the basic operation of the meter is provided below. There are four
major parts of the METER. Each will be addressed in the following sections.
4
1. The input Terminal area
3
2
2. The Keys area
3. The Display area
4. The USB Interface and
Power input terminal
FUNC
1
2-1
Model 381395 Version 1.0 January 2008
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2.1. The input Terminal area
2. Product Description
3
4
2
1
2.1.1. Caution ( )
Refer to the User Manual before using this Meter.
2.1.2. Warning ( )
Be extremely careful when making high-voltage measurements; DO NOT TOUCH THE
TERMINALS OR THE ENDS OF TEST LEAD PROBES
2.1.3. 600V MAX
To avoid electrical shock or instrument damage, do not connect the COM input terminal to
any source of more 600V with respect to earth/ground.
2.1.4. The METER provides 4 input jacks (see above)
1) Channel A
Use Channel A for all single input measurements.
2) Common
Use Common (Black) as single ground for low frequency measurements and for ACV, DCV,
Ohm, Continuity, Hz, RPM, P/W and DTY measurements.
3) Channel B
For measurements on two signals use Channel B in combination with Channel A.
4) External trigger
The EXT.TRIG input accepts external trigger signals.
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Model 381395 Version 1.0 January 2008
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2.2. The Keys area
2. Product Description
5
3
8
4
2
7
1
F1
TRIG
FUNC
6
2.2.1. Powering ON and OFF ( )
Pressing and holding this key for 2-3 seconds will turn the unit on.
Pressing this key again will turn the power off.
2.2.2. AUTO key ( )
1) In General Scope Mode, pressing this key will change the Vertical and Horizontal
divisions from Manual to Auto-setting (
2) In Data Logger and Digital Multimeter modes, pressing this key will switch the Range
mode to Auto-range mode (AT).
).
2.2.3. TRIGger key ( )
Triggering informs the Meter when to begin displaying a waveform.
This key is available for use in General Scope Mode only.
c Trigger Source: Ch A or B
1 2
4
5
6 7
3
8
2-3
d Slope: Rising or Falling
e Trigger setting mode (Auto or
Normal)
f Trigger Level indicator
g Trigger point indicator
h Command Menu: Trigger level
i Command Menu: Single shot
j Command Menu: Trigger mode
(Setup)
Model 381395 Version 1.0 January 2008
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2. Product Description
2.2.4. Function key ( )
Press key to display the default menu and submenus as shown below.
c
: Use the arrow keys to highlight an item.
d
e To enter the Setup mode for a particular Function, press
: Select the item
key.
1
2
3
4
5
c RECORD MODE d RELATIVE MODE e COMPARE MODE
f TREND PLOT g SYSTEM SETUP
GENERAL SCOPE DATA LOGGER
2.2.5. Command menu keys ( )
F1 through F4 are command menu soft-keys. These keys have a corresponding menu item
displayed on the LCD. Press a soft-key to select the command term shown above the key.
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Model 381395 Version 1.0 January 2008
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2. Product Description
2.2.6. Four arrow keys ( )
These keys serve as the primary means of navigating the instrument’s menus and operating
displays.
1) In the Ge neral Scope Mode
(1) When command menu is in Div mode. (
Æ Vertical (Volt) Division changes.
: Press to select a higher division value.
•
[Ex-1] 50mÆ0.1Æ0.2Æ0.5Æ1Æ2Æ…Æ50Æ100Æ200V
•
Or
[Ex-2] 200Æ100Æ50Æ…Æ2Æ1Æ0.5Æ0.2Æ0.1Æ50mV
(2) When command menu is in Pos mode. (
Æ The Waveform for Channel A or B can be moved.
•
•
(1) When command menu is in Div mode. (
Æ Horizontal (Time) Division changes can be made.
•
: Press to change to a smaller division.
: Press to move the waveforms upward.
: Press to move the waveforms downward.
: Press to select a higher value (in seconds).
)
)
)
[Ex-1] 1uSÆ2uSÆ5uSÆ10uSÆ…Æ1SÆ2SÆ5S
•
Or
: Press to select a lower value (in seconds).
[Ex-2] 5SÆ2SÆ1SÆ…Æ10uSÆ5uSÆ2uSÆ1uS
(2) When the command menu is in the Pos mode.
(
Æ The Trigger point indicator (
: Press to move the Trigger point indicator leftward.
•
: Press to move the Trigger point indicator rightward.
•
)
) can be move.
2-5
Model 381395 Version 1.0 January 2008
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2. Product Description
2) In the Data Logger and Multimeter Modes
To make Measurement Range changes:
• Press
Or
Or
[Ex-1] 000.1mVÆ0.001VÆ00.01VÆ000.1V
• Press
[Ex-2] 000.1VÆ00.01VÆ0.001VÆ000.1mV
To change the Measurement Function, use the left or right arrow key:
• Use the
[Ex-3] DTYÆP/WÆRPMÆFRQÆBZÆOHMÆACVÆ DCV
• Use the
[Ex-4] DCVÆACVÆOHMÆBZÆFRQÆRPMÆP/WÆDTY
key to select a higher range.
key to select a lower range.
key:
key:
3) In the S ystem Set u p mo de
, , , : Use the arrow keys to move the cursor and to increase / decrease the
value of a selection.
2.2.7. Display back light ( )
Press this key to turn on the backlight.
To turn the back light off, press this key again.
2.2.8. Hold key ( )
1) In the Ge neral Scope Mode
The meter can store setups and waveforms in its internal memory for later recall. Sixteen (0-
15) setup and waveform memories are available.
Memory mode. (
2) In Data Logger and Multimeter Mode
All readings and waveforms can be held (frozen on the display) at any time in this mode.
)
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Model 381395 Version 1.0 January 2008
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2. Product Description
2.3. The Display area
The screen is divided into three areas: INDICATORS, DISPLAY area, and COMMAND
MENU. Refer to the Figure below.
1
2
3
2.3.1. Special indicators
▪ HOLD: Freezes the LCD display reading
▪ REMOTE: Indicates that the meter is communicating with a PC (USB Interface)
▪ BACK LIGHT (
▪ Charging LINE (
▪ BATTERY (
▪ BUZZER (
): Back light indicator
): Charging Battery indicator
): Low battery indicator
): Buzzer indicator
2-7
Model 381395 Version 1.0 January 2008
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2. Product Description
2.3.2. Function-Dependent DISPLAYS
1) Display Functions in the Menu mode
Configure the General Scope, Data Logger, Multimeter and System settings
c Press to open Function Menu
PATH:
d Press
to open Setup
2) General Scope mode Dis plays
The screen is divided into four areas: Set point area, Live Scope display area, Division
setting area and Command Menu area. Refer to Figure below.
1
2
5
3
4
c ÆGENERAL SCOPEÆ d Press to open Setup
PATH: Æ ÆSelects “GENERAL SCOPE”Æ
(2-1) (Refer to diagram above) The settings are shown in this area.
c-1.
A readings will display, for example.
c-2.
c-3.
c-4.
c-5.
Æ
Æ
: Trigger selection: Channel A, B and External
: Rising or falling edge
: Trigger mode: Normal or AUTO
: Channel mode status
: Displays the numerical readings. If only input A is used, only input
: Vertical mode: CHA, CHB or A&B
: Horizontal mode: Normal, Roll
c-6.
the top-right corner of the display area.
: When pressing key in Scope mode only, the Memory Address appears at
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Model 381395 Version 1.0 January 2008
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(2-2) Live Scope display area
d-1
: Trigger level indicator
2. Product Description
d-2
d-3 Live Scope Display (Channel A): Displays real time waveforms and freezes captures.
d-4 Live Scope Display (Channel B)
(2-3) The Division value will be shown in this area.
e-1
e-2
e-3
Pressing
(
(2-4) Command Menu Field
f-1 Default command Menu:
If the
Toggle the command Menu items Div and Pos using the
(2-5) The Setup mode for the Scope
g-1
g-2
g-3
g-4
ROLL MODE operates when the horizontal division is between 1s and 5s
g-5
: Trigger point indicator
: Vertical Division of Channel A
: Vertical Division of Channel B
: Horizontal Divisions (Time base)
key changes Vertical division or horizontal division from MANUAL to AUTO
).
key is pressed, the command menu changes to
f-2 Press
key to display the TRIGGER command menu.
AC/DC Coupling for Channel A
AC/DC Coupling for Channel B
key.
Set CHA, CHB or CHA & CHB for Vertical mode
Set NORMal or ROLL for Horizontal mode
Set the Measurement Function for Channel A
3) Data Logger mode Displays
1
2
5
3
4
c Æ DATA LOGGER Æ
PATH: Æ ÆSelects “DATA LOGGER”Æ
d Press to open Setup
2-9
e Press to change Edit
mode
Model 381395 Version 1.0 January 2008
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2. Product Description
(3-1) Display the Date and Time. (Data Logger and DMM Function)
c-1.
c-2.
(3-2) Primary Numerical Field (Data Logger and DMM Function)
d-1.
d-2.
: Display of the current Function value
: Display numerical readings. The display updates four times per second
d-3.
measurement similar to a traditional analog meter needle
d-4.
d-5.
: AUTO range. The default for “RANGE” is auto-range
: Display of the current Function indicator
(3-3) Display of Datalogger info (number of readings, time, and measurement data)
e-1.
e-2.
e-3.
: Logged data Record Number
: Time of logged data
e-4.
e-5.
e-6.
: Current: dd-mm-yyyy
: Current Time: hh:mm:ss
: The analog bar-graph provides a visual indication of
: Displayed or for the sampling type
: Numerical reading
: Logged data.
: (End of Data) shown when last data point has been reached
(3-4) The Data Logger Command Menu
f-1.
f-2.
f-3.
f-4.
: Open the Data Logger Setup mode
: Erase the displayed logged data
: Displays stored readings and buffer statistics
: Start the Data Logger
(3-5) The Setup mode for Data Logger.
g-1.
g-2.
▪
▪
: Sample (interval) Mode
: Peak Detect Mode. The displayed value updates only when a new peak value is
: Set the Measurement Function
: Set the Sampling type, or
detected.
g-3.
: Set the Sampling interval time, 1Sec to 9,999Sec
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Model 381395 Version 1.0 January 2008
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g-4. : Set the Start Address for the Data logger
g-5.
: Set the Stop Address for the Data logger
4) DMM mode Displays
(4-1) RECORD MODE
1
2
5
3
2. Product Description
4
c ÆRECORD MODEÆ
PATH: Æ ÆSelects “RECORD MODE”Æ
(1) Date and Time (Data Logger and DMM Function)
c Refer to Data Logger section.
(2) Primary Numerical Field (Data Logger and DMM Function)
d Refer to Data Logger section.
(3) Number of records and the time stamp.
e-1.
maximum value is detected.
e-2.
value is detected.
e-3.
minimum value is detected.
e-4.
e-5.
d Press to open Setup
: The displayed value updates only when a new
: The displayed value updates only when a new average
: The displayed value updates only when a new
: Total number of data.
: Total elapsed time.
(4) The Command Menu for Record mode
f-1.
f-2.
f-3.
(5) The Setup mode for the Record mode
g-1.
: Opens Setup mode for the Record mode
: All data are set to zero.
: Freezes the displayed value.
: Set the Measurement Function
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Model 381395 Version 1.0 January 2008
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2. Product Description
Select from the following functions. DCV, ACV, OHM, BZ, FRQ, RPM, P/W or DTY.
(4-2) RELATIVE MODE
1
2
5
3
4
c ÆRELATIVE MODEÆ
PATH: Æ ÆSelects “RELATIVE MODE”Æ
(1) Display the Date and Time (Data Logger and DMM Function)
c Refer to Data Logger section.
(2) Primary Numerical Field (Data Logger and DMM Function)
d Refer to Data Logger section.
(3) Displays the Rel ative data and time.
e-1.
e-2.
e-3.
e-4.
e-5.
: Reference value
: Difference value, Difference = Measured value– Reference (REF)
: Error rate, ERR % = Difference / Reference x 100
: The mean error
d Press
: Total elapsed time
to open Setup
e Press to change Edit
mode
(4) The Command Menu for the Relative mode
f Refer to the Record mode
(5) The Setup mode for Relative
g-1.
Select from the following functions. DCV, ACV, OHM, BZ, FRQ, RPM, P/W or DTY.
g-2. Edit the Relative mode Reference point.
: Set the Measurement Function.
(4-3) COMPARE MODE
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2. Product Description
1
2
5
3
4
c ÆCOMPARE MODEÆ
d Press
PATH: Æ ÆSelects “COMPARE MODE”Æ
(1) Display of the Date and Time (Data Logger and DMM Function)
c Refer to Data Logger section.
(2) Primary Numerical Field (Data Logger and DMM Function)
d This field compares the input value to a high and low limit value. A LO is displayed if the
input value is lower than the low limit, PASS if the input value is within the high and low limit
values and HI if the input is greater than the high limit.
(3) Display of the Comparison data and time.
e-1.
e-2.
e-3.
e-4.
e-5.
: To be set value for HI limit.
: To be set value for LOW limit
: Reading value
: Total pass muster
: Total elapsed time
to open Setup
e Press to change Edit
mode
(4) The Command Menu for Relative mode
f Refer to Record mode.
(5) The Setup mode for the Compare function
g-1.
: Set the Measurement Function.
Select from the following functions. DCV, ACV, OHM, BZ, FRQ, RPM, P/W or DTY.
g-2. Edit Compare mode high point.
g-3. Edit Compare mode low point.
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(4-4) TREND PLOT
2. Product Description
1
2
5
3
4
c ÆTREND MODEÆ
PATH: Æ ÆSelects “TREND PLOT”Æ
(1) Display of the Date and Time (Data Logger and DMM Function)
c Refer to Data Logger section.
(2) Primary Numerical Field (Data Logger and DMM Function)
d Refer to Data Logger section.
(3) Display of the graph trend plot.
e-1.
e-2.
value
(4) The Command Menu
f-1.
are displayed.
f-2.
f-3.
: The Reference value, horizontal and vertical axis values (REF, H/Div, V/Div)
: Erase the graph
: Starts the graph plot (using REF value as the centerline).
: Horizontal Division per div
: Displays the graph with the reference value as the center
d Press to open Setup
e Press to change Edit
mode
(5) The Setup mode for the Trend plot
g-1
g-2
g-3
g-4
or
The Offset is the centerline value on the trend graph
V/DIV is the Y axis (amplitude).
H/Div is the X axis (time)
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5) The Dis play of SYSTEM SETUP mode
2. Product Description
1) Set the Time and Date
1-1) Time: hh:mm:ss
1-2) Date: dd-mm-yyyy
c Æ SYSTEM SETUP Æ
PATH: Æ ÆSelects “SYSTEM SETUP”Æ
(1) BEEPER: Beeper on/off
(2) AUTOPOWER OFF: Auto power off selection
(3) BAUD RATE (BPS): USB Baud rate selection
(4) TIME SET: Set current time
(5) DATE SET: Set Date of today
(6) CONTRAST: LCD Contrast adjust
d Press to change Edit mode
2.3.3. The Command Menu
The command menu is changed depends on the function with each function.
Mode PATH Command Menu
Function
Menu
Div: ÆG/ScopeÆ
General
Scope
Data Logger
Multimeter
System setup
Pos: ÆG/ScopeÆ Æ
Trigger: ÆG/ScopeÆ Æ
Store/Recall:
ÆG/ScopeÆ Æ
ÆD/LoggerÆ
Record/Relative/Compare
ÆRecordÆ
Trend plot
ÆTrendÆ
ÆSystem setupÆ
Edit mode:
ÆSystem setupÆ
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2. Product Description
2.4. The USB Interface and Power input terminal
2.4.1. USB INTERFACE
Enables the Meter to communicate with a PC over a Universal Serial Bus (USB).
Connect the meter to the PC using the supplied communication cable. The TRS
(tip/ring/sleeve phone plug) end of the cable connects to the meter (top) and USB end
connects to the PC USB port.
2.4.2. Power Adaptor Input Terminal
If an AC/DC power adapter is to be used, ensure that the adapter is plugged into an
appropriate live power source.
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3. Using the Scope
3. Using the Scope
3.1. Powering the METER
Follow the steps below to power the Meter from a standard AC outlet.
1. Insert the Power Adaptor into an AC outlet.
2. Connect the Power Adaptor to the Meter.
3.
4. The meter powers up configured as it was at last power down.
Turn the Meter on by holding this key for 2-3 seconds.
3.2. Changing Backlight
1. Press Backlight ON.
2. Press
Note: Using the meter without the backlight increases battery life by 1 hour approximately.
Backlight OFF.
3.3. Selecting “GENERAL SCOPE” in the Menu
Follow steps c through e to open a menu and choose an item.
Open the FUNCTION menu.
c
▪ General Scope
▪ Data Logger
▪ Multimeter (4 type)
▪ System Setup
d
e
PATH: Æ Æ
Use the arrow keys to highlight the item.
Set the “GENERAL SCOPE”.
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3. Using the Scope
3.4. Selecting items in SCOPE SETUP menu
Subsequently follow steps c to f to open a menu and to choose an item.
b
Default command menu.
c
d
e
f
PATH: Æ Æ Æ
Open the Scope Setup menu.
Use the arrow keys to highlight an item.
Select the item.
Exit
3.4.1. Set Frequency measurement for CHA
To choose a Frequency measurement for Channel A, perform the following:
c
Input jack
Start Display
d
Æ
Plug the black test lead into the COM input jack and plug the red test
lead into the CHA input jack.
e
f
g
h
PATH: Æ Æ Æ
Highlight Hz (□ Hz).
Set Hz (■ Hz).
Exit
Observe that Hz is now the main reading.
The Frequency unit appears at the top-left corner of the display area.
(Refer to above picture DCVÆFRQ)
Î
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3. Using the Scope
3.5. Changing the Graphic Representation
3.5.1. Changing the vertical division
c
d
e
f
PATH: Î , or
1) Pressing
2) Pressing
3) Pressing
or
With the menu as shown at right> (
Change command Menu Pos to Div. (
Vertical Division is changed to manual mode
• Pressing
50mVÆ0.1VÆ0.2VÆ0.5VÆ1VÆ2VÆ5VÆ10VÆ20VÆ50VÆ100VÆ200V
• Pressing
200VÆ100VÆ50VÆ20VÆ10VÆ5VÆ2VÆ1VÆ0.5VÆ0.2VÆ0.1VÆ50mV
Change Div from Manual mode to AUTO mode.
increases CHA (or CHB) vertical division.
decreases CHA (or CHB) vertical division.
will change the division from MANUAL to AUTO ( ) mode.
key increases CHA vertical division (A/div).
key decreases CHA vertical division (A/div).
)
3.5.2. Changing the Horizontal division (Time Base)
)
c
d
e
f
PATH: Î , or
1) Pressing
2) Pressing
3) Pressing
With the menu as shown at right>. (
Change command Menu Pos to Div. (
Change the Horizontal Division (Time base)
• Pressing
or
5SÆ2SÆ1SÆ500mSÆ…Æ50uSÆ20uSÆ10uSÆ5uSÆ2uSÆ1uS
• Pressing
1uSÆ2uSÆ5uSÆ10uSÆ20uSÆ50uSÆ…Æ500mSÆ1SÆ2SÆ5S
Change Div from Manual mode to AUTO mode.
increases the Horizontal Division (Time base).
decreases the Horizontal Division (Time base).
will change the division from MANUAL to AUTO ( ) mode.
)
)
key decreases Horizontal division (H/div).
key increases Horizontal division (H/div).
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3. Using the Scope
3.5.3. Positioning the Waveform of CH A on the Screen
c
d
PATH: Î or
1) Pressing
2) Pressing
With the menu as shown >
change the command menu Div to Pos (
or
Default Screen Æ
moves the waveform of Channel A downward.
moves the waveform of Channel A upward.
Æ Æ
, press key to
3.5.4. Positioning the Waveform of CH B on the Screen
c
d
e
Next
procedure
With the menu at right>
change the command menu Div to Pos (
To change the Division command menu from CHA to CHB.
Same as example above for “Positioning CH A Wave on the Screen”
, press key to
).
).
PATH: Î Î or
1) Pressing
2) Pressing
moves the waveform of Channel B downward.
moves the waveform of Channel B upward.
3.5.5. Positioning the Trigger Point Indicator on the Screen
c
d
Default Screen Æ
PATH: Î or
With the menu at right >
the command menu Div to Pos (
Or
Æ
, press key to change
).
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3. Using the Scope
1) Pressing
2) Pressing
moves Trigger Point Indicator leftward.
moves Trigger Point Indicator rightward.
3.6. Acquiring a Waveform
Start Display
c
3.6.1. Recording slow signals over a Long Period of Time.
d
Æ
Highlight ROLL mode.
Î
e
f
PATH: Î Î Î
The ROLL mode function supplies a visual log of waveform activity and is especially useful
when measuring lower frequency waveforms.
Note: ROLL MODE operates when the horizontal division is between 1sec. and 5 sec.
Set the ROLL mode.
Exit
3.6.2. Selecting AC-Coupling for INPUT A
d
e
f
PATH: Î Î Î
Use AC-coupling to observe a small AC signal that rides on a DC signal.
Highlight AC for INPUT A.
Set the AC-coupling for INPUT A.
Exit
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3. Using the Scope
3.7. Triggering on a Waveform
Triggering alerts the Meter to begin displaying a waveform. Refer to the instructions that
follow:
z Select a Source Channel
z Select rising or falling edge on which to trigger
z Select a Trigger mode
z Define the condition for waveform updates
The display icons on the top line (right side) of the LCD identify the trigger parameters
currently used. Trigger icons on the screen indicate the trigger level and slope.
①-1.
1
Channel A, B and External
2
①-2.
3
①-3.
Normal or AUTO
②
③
3.7.1. Setting Trigger mode (Tmode)
b
Default command menu.
: Trigger selection
: Rising or falling edge
: Trigger mode
: Trigger level indicator
: Trigger point indicator
c
Open the Trigger command menu.
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3. Using the Scope
d
e
f
g
PATH: Î Î Î Î
Open the Trigger Setup
Highlight the desired ITEM
Set the ITEM
Exit
3.7.2. Setting the AUTO Trigger Level
For quick operation, use the AUTO trigger mode to trigger on nearly all signals automatically.
To optimize the trigger slope manually, perform the following:
b
Default command menu.
c
d
e
f
g
PATH: Î Î Î Î
Open the Trigger command menu.
Open the Trigger Setup.
Highlight AUTO.
Set AUTO.
Exit.
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3.7.3. Setting the Normal Trigger mode
3. Using the Scope
e
f
g
PATH: Î Î Î Î
Highlight NORM.
Set NORM.
Exit.
3.7.4. Setting the Trigger Slope
Trigger on either positive Slope or negative Slope of a waveform.
e
f
g
PATH: Î Î Î Î
Highlight
Set
Exit.
or .
or .
3.7.5. Changing the Trigger level Indicator
For NORMal Trigger mode:
b
c
d
e
PATH: Î , or
1) Pressing
2) Pressing
or
moves the Trigger level indicator ( ) downward.
moves the Trigger level indicator ( ) upward.
Default command menu.
Open the Trigger command menu.
Adjust the Trigger Level continuously. Observe the Trigger level indicator
(
) on the rightmost time division line.
Exit.
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3. Using the Scope
3.7.6. Making a single acquisition
To capture single events, perform a single shot. (One time screen update.) To configure the
Meter for a single shot on the Channel A waveform:
Connect the probe to the signal to be measured.
b
Default command menu.
c
d
e
PATH: Î Î
Open the Trigger command menu.
Highlight Singl (SINGLE SHOT).
The meter performs a single shot. (One time screen update)
Return to normal Trigger mode.
3.8. Storing and Recalling Screens
The meter can store setups and waveforms for later recall. Sixteen (0-15) setup and
waveform memories are available.
3.8.1. Storing Screen
To store a screen, perform the following:
b
Default command menu.
Open the Memory (MEM)
menu.
c
d
e
PATH: Î Î
c Memory Menu
d Memory Address (0~15)
Memory field (M:00) appears at the top-right corner of the display area.
Select the memory address where the screen is to be stored.
Store the actual screen
(Store, Recall, Exit)
(M: 00)
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3.8.2. Recalling Screen
To recall a screen, perform the following:
b
c
Default command menu.
Open the Memory (MEM)
menu.
c Memory Menu
(Store, Recall, Exit)
d Memory Address (0~15)
(M: 00)
3. Using the Scope
d
e
PATH: Î Î
The result will be a fixed image and therefore can not be edited or otherwise changed.
Memory field (M:00) appears at the top-right corner of the display area.
Select the memory address from which to recall the screen
Recall the screen.
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4. Using the Data Logger
4. Using the Data Logger
The meter can record DCV, ACV, OHM, BZ, FRQ, RPM, Pulse width or Duty cycle with
signal from a contact. Values are stored in non volatile electronic memory. Data transfer to a
PC for further analysis is performed via the built-in USB interface.
Up to 17,000 measurements can be stored in memory.
PATH: Î (DATA LOGGER)Î Æ
4.1. Items in the Data Logger Setup menu
Follow steps c through i to open a menu and choose an item.
c
d
e
f
g
h
i
Open the FUNCTION menu.
Use the arrow keys to highlight DATA LOGGER.
Set and Open the Data Logger.
Open the Data Logger Setup.
Use the arrow keys to highlight an item.
Set the desired item.
Exit
PATH: Î Î Î Î Î Î
4.1.1. Change the Sampling Type
g
Use the arrow keys to highlight Sample Type (■ Time or □ Peak).
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4. Using the Data Logger
h
i
PATH: Î Î Î Î Î Î
Set the item
Exit
4.1.2. Change the Sampling Interval Time
Example: Set the sampling interval time from 1Sec to 10Sec.
g
h
i
j
k
Use the arrow keys to highlight S/Time (Sec).
Press
[Ex-1] S/Time (Sec): 00001
• Press
digit. [Ex-2] S/Time (Sec): 00000
Move the Cursor to highlight the most significant digit.
[Ex-2] S/Time (Sec): 00000
• Press
digit. [Ex-3] S/Time (Sec): 00010
key to change the Edit mode.
key to increase, key to decreases the highlighted
key to increase, key to decreases the highlighted
l
PATH: Î Î Î Î Î Î Î Î Î
Exit
4.1.3. Change the Start/Stop Address
Example: Set the Start address from 10001 to 12001.
g
h
i
j
k
Use the arrow keys to highlight Sampling Time or Start/Stop Address.
Press
[Ex-1] START ADD: 10001
Move the Cursor to highlight the most significant digit.
[Ex-2] START ADD: 10001
• Press
[Ex-3] START ADD: 12001
Exit
key to switch to the Edit mode.
key to increase,
key to decreases the highlighted digit.
PATH: Î Î Î Î Î Î Î Î
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4. Using the Data Logger
4.2. Start Data logger procedure
1. Insert the BLACK test lead in the input socket marked ‘COM’.
2. Insert the RED test lead in the input socket marked ‘CHA’.
3.
4.
5.
6.
Open the FUNCTION menu.
Use the arrow keys to highlight the DATA LOGGER
Set and Open the Data Logger.
Select to DCV function.
The DCV icon appears at the top-left corner of the display.
• Press
[Ex-1] DTYÆP/WÆRPMÆFRQÆBZÆOHMÆACVÆ DCV
• Press
[Ex-2] DCVÆACVÆOHMÆBZÆFRQÆRPMÆP/WÆDTY
Select the auto-range function by pressing
use
• Press
key to change the Measurement Function:
key to change the Measurement Function.
key or
keys to select the desired range.
key to change to a higher range.
7.
8.
PATH: Î Î Î Î , or Î
9. Connect test leads to the source signal and observe the reading shown on the display. If
the input signal is beyond the allowed range, an overflow message “OL” will be displayed.
[Ex-1] 000.1mVÆ0.001VÆ00.01VÆ000.1V
• Press
[Ex-2] 000.1VÆ00.01VÆ0.001VÆ000.1mV
• Press
Press
Press this key again to Stop.
key to change the lower range.
key to choose the Auto-range (AT) mode
key to Start.
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4. Using the Data Logger
4.2.1. Changing the Measurement Function & Range
To change the Measurement Function and/or Range, perform the following.
Measurement Range change.
• Press the
Or
Or
[Ex-1] 000.1mVÆ0.001VÆ00.01VÆ000.1V
• Press the
[Ex-2] 000.1VÆ00.01VÆ0.001VÆ000.1mV
Measurement Function change.
• Press the key to change the Measurement Function:
[Ex-3] DTYÆP/WÆRPMÆFRQÆBZÆOHMÆACVÆ DCV
• Press the
[Ex-4] DCVÆACVÆOHMÆBZÆFRQÆRPMÆP/WÆDTY
key to change to a higher range.
key to change to a lower range.
key to change the Measurement Function.
4.3. Recall Data
To recall data from the meter’s internal memory, perform the following:
c
Open the FUNCTION menu.
d
e
f
g
PATH: Î Î Î Î ,
or
Use the arrow keys to highlight DATA LOGGER
Set and Open the Data Logger.
Press
• Press the
• Press the
key to recall data.
key to scroll up
key to scroll down.
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5. Using the Digital Multimeter
5. Using the Digital Multimeter
5.1. The Digital Multimeter Displays
5.1.1. RECORD MODE
c Æ RECORD MODE Æ d Press to open Setup
PATH: Æ ÆSelects “RECORD MODE”Æ
In this mode, the meter records and displays maximum (MAX), minimum (MIN) and average
(AVG) values from measurements taken over a period of time.
(Real Time for MAX or MIN, elapsed time for AVG).
5.1.2. RELATIVE MODE
c Æ RELATIVE MODE Æ
PATH: Æ ÆSelects “RELATIVE MODE”Æ
In this mode, the meter records and displays reference (REF), difference (DIF) and error
(ERR) values from measurements taken over a period of time.
The relative mode measures to what degree the input value deviates from a reference value
(the deviation is displayed as a % error).
Difference (DIF) = Measured – Reference (REF)
Error (ERR %) = Difference / Reference x 100
d Press to open Setup e Press to change Edit mode
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5.1.3. COMPARE MODE
5. Using the Digital Multimeter
c ÆCOMPARE MODE Æ
PATH: Æ ÆSelects “COMPARE MODE”Æ
In Compare mode, the meter determines if a measurement is within, above, or below a
designated range.
In this mode, the meter compares the input value to a high and low limit value. A -LO- is
displayed if the input value is lower than the low limit, PASS if the input value is within the
high and low limit values and -HI- if the input is greater than the high limit.
d Press to open Setup
e Press to change Edit mode
5.1.4. TREND PLOT
c Æ TREND MODE Æ
PATH: Æ ÆSelects “TREND PLOT”Æ
Displays the trend graph with the reference value as the center value.
[F1] SetUp: The Reference value, horizontal and vertical axis values (REF, H/Div, V/Div)
are displayed. The REF is the centerline value on the trend graph, H/Div is the X axis (time)
and V/DIV is the Y axis (amplitude).
[F3] Clear: Erase the graph on display.
[F4] Start: Starts the plotting using the REF value as the centerline.
d Press to open Setup
5-2
e Press to change Edit mode
Model 381395 Version 1.0 January 2008
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5. Using the Digital Multimeter
5.2. Measurement Procedures
z Voltage Measurements
CAUTION!
Do not attempt to make a voltage measurement if a test lead is plugged in the CHB
or EXT.TRIG input jack, instrument damage and/or personal injury may result.
WARNING!
1. To avoid the risk of electrical shock and instrument damage, input voltages must
not exceed 1,000V DC or 600V AC rms.
2. Always keep fingers behind the finger guards on the probe when making
measurements.
5.2.1. DC V
z Applications
DCV: Voltage of batteries or DC circuits can be measured.
z Measuring ranges
4 ranges from 1,000mV to 1,000V
z Measurement procedure
1. Insert the BLACK test lead into the input socket marked as ‘COM’.
2. Insert the RED test lead into the input socket marked as ‘CHA’.
3.
4.
Open the FUNCTION menu.
Highlight Digital Multimeter (Record, Relative, Compare or Trend).
5.
6.
or
Select DCV function. The DCV appears at the top-left corner of the
display.
• Press
[Ex-1] DTYÆP/WÆRPMÆFRQÆBZÆOHMÆACVÆ DCV
• Press
[Ex-2] DCVÆACVÆOHMÆBZÆFRQÆRPMÆP/WÆDTY
key to change the Measurement Function:
key to change the Measurement Function.
Open the selected item.
In this example the Record mode is selected.
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5. Using the Digital Multimeter
Select the auto-range function by pressing
keys to select desired range.
• Press key to select a higher range.
7.
or
PATH: Î Î Î or Î , or
8. Connect the test leads to the source signal and observe the reading shown on the display.
If the input signal is beyond the allowed range, an overflow message “OL” will be
displayed.
[Ex-1] 012.3mVÆ0.123VÆ01.23VÆ012.3V
• Press
[Ex-2] 012.3VÆ01.23VÆ0.123VÆ012.3mV
• Pressing
key to select a lower range.
key will change the Range to Auto-range (AT)
key or use
5.2.2. AC V
z Applications
ACV: Sine wave AC voltages used in the powering of appliances, lighting, and tools can be
measured.
z Measuring ranges
Four (4) ranges from 1,000mV to 750V.
z Measurement procedure
1. Insert the BLACK test lead into the input socket marked as ‘COM’.
2. Insert the RED test lead into the input socket marked as ‘CHA’.
3. Change the mode to Digital Multimeter. (skip this step if Digital Multimeter mode is set)
Path:
4. Select ACV with the
area.
5. Select the auto-range function by pressing
desired range.
6. Connect test leads to the source signal and observe the reading shown on the display. If
the input signal is beyond the allowed range, an overflow message “OL” will be displayed.
Note.
The LCD will indicate the measured value in numeric and Bar graph displays.
If the voltage is too high, the measurement range will switch to the next higher range
automatically.
Î Î (Record, Relative, Compare mode or Trend plot)
or keys. The ACV appears at the top-left corner of the display
key or use , keys to select the
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5. Using the Digital Multimeter
5.2.3. Resistance
z Resistance Measurements
CAUTION!
WARNING!
z Applications
Resistance of resistors and circuits can be measured.
z Measuring ranges
4 ranges from 5kΩ to 5MΩ.
z Measurement procedure
1. Insert the BLACK test lead into the input socket marked as ‘COM’.
2. Insert the RED test lead into the input socket marked as ‘CHA’.
3. Change the mode to Digital Multimeter. (skip this step if Digital Multimeter mode is set)
Do not attempt to make a voltage measurement if a test lead is plugged in to
the CHB or EXT.TRIG input jack, instrument damage and/or personal injury
may result.
Turn off power and discharge all capacitors in the circuit to be tested before
making in-circuit resistance measurements. Accurate measurement are not
possible if external or residual voltage is present.
Path:
4. Select OHM with the
display area.
5. Select the auto-range function by pressing
desired range.
6. Connect test leads to the source signal and observe the reading shown on the display. If
the input signal is beyond the allowed range, an overflow message “OL” will be displayed.
Î Î (Record, Relative, Compare mode or Trend plot)
and keys. The OHM icon appears at the top-left corner of the
key or use , keys to select the
5.2.4. Continuity
z Applications
Checking the continuity of wiring
z How to use:
1. Insert the BLACK test lead into the input socket marked as ‘COM’.
2. Insert the RED test lead into the input socket marked as ‘CHA’.
3. Change the mode to Digital Multimeter. (skip this step if Digital Multimeter mode is set)
Path:
4. Select BZ with the
Î Î (Record, Relative, Compare mode or Trend plot)
or key. The BZ appears at the top-left corner of the display area.
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5. Using the Digital Multimeter
5. Connect test leads to your source signal. The measured value will be shown on the
display automatically. The Meter “beeps” when measured resistance value is lower than
threshold value.
5.2.5. Frequency
CAUTION!
WARNING!
z Applications
Frequency of an AC circuit is measured.
z Measuring ranges [Full Auto Range]
Six (6) ranges from 100Hz to 10MHz
z Measurement procedure
1. Insert the BLACK test lead in the input socket marked ‘COM’.
2. Insert the RED test lead in the input socket marked ‘CHA’.
3. Change the mode to Digital Multimeter (skip this step if Digital Multimeter mode is set)
Do not attempt to make a voltage measurement if a test lead is plugged in
the CHB or EXT.TRIG input jack, instrument damage and/or personal injury
may result.
1. Never attempt a frequency measurement with a voltage source greater
than 600V AC rms. Determine the voltage of any unknown frequency
source before connecting the instrument in frequency mode.
2. Always keep fingers behind the finger guards on the probe when making
measurements.
Path:
4. Select FRQ with the
area.
5. Connect test leads to the source signal and observe the reading shown on the display. If
the input signal is beyond the allowable range, an overload message “OL” will be display.
Î Î (Record, Relative, Compare mode or Trend plot)
or key. The FRQ appears at the top-left corner of the display
5.2.6. RPM
z Applications
RPM (rotations per minute) is measured.
z Measurement procedure
1. Insert the BLACK test lead in the input socket marked ‘COM’.
2. Insert the RED test lead in the input socket marked ‘CHA’.
3. Change the mode to Digital Multimeter. (skip this step if Digital Multimeter mode is set)
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Model 381395 Version 1.0 January 2008
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5. Using the Digital Multimeter
Path:
4. Select RPM with the
area.
5. Connect test leads to the source signal and observe the reading shown on the display.
Î Î (Record, Relative, Compare mode or Trend plot)
or key. The RPM appears at the top-left corner of the display
5.2.7. Pulse Width
z Applications
Pulse Width is measured. [Auto Range]
z Measurement procedure
1. Insert the BLACK test lead in the input socket marked ‘COM’.
2. Insert the RED test lead in the input socket marked ‘CHA’.
3. Change the mode to Digital Multimeter. (skip this step if Digital Multimeter mode is set)
Path:
4. Select P/W with the
area.
5. Connect test leads to the source signal and observe the reading shown on the display.
Î Î (Record, Relative, Compare mode or Trend plot)
or key. The P/W appears at the top-left corner of the display
5.2.8. Duty Cycle
z Applications
Duty Cycle is measured.
z Measurement procedure
1. Insert the BLACK test lead in the input socket marked ‘COM’.
2. Insert the RED test lead in the input socket marked ‘CHA’.
3. Change the mode to Digital Multimeter. (skip this step if Digital Multimeter mode is set)
Path:
4. Select DTY with the
area.
5. Connect test leads to the source signal and observe the reading shown on the display.
Î Î (Record, Relative, Compare mode or Trend plot)
or key. The DTY appears at the top-left corner of the display
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6. System Setup
6. System Setup
Set Beeper, Auto Power off, BAUD Rate for USB, Time, Date and Contrast
6.1. Configure the meter’s audible beeper tone
The “BEEPER” can be set to be ON or OFF
The meter beeps when the factory settings are restored
When ON, an audible beep will sound when any front panel key is pressed
Path:
Î SYSTEM SETUP Î
6.2. Auto Power Off
The Auto Power Off mode turns the meter off automatically after a period of 20 minutes of
inactivity. This feature is in place to conserve battery life.
6.3. Set the BAUD RATE (BPS) of USB
To change the BAUD Rate (BPS):
c
d
e
f
Path: Î Î Î
Press
Use the arrow keys to highlight “BAUD RATE(BPS):”.
Set the item. (Fixed 115200)
Exit
ÆSYSTEM SETUPÆ to access SYSTEM SETUP
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Model 381395 Version 1.0 January 2008
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6. System Setup
6.4. Changing the Current Date and Time
1) Set the Time and Date
1-1) Time: hh:mm:ss
1-2) Date: dd-mm-yy
c ÆSYSTEM SETUPÆ
d Press to change Edit mode
6.4.1. Setting the Real-Time Clock
“TIME SET:” allows the user to set the real-time clock. Enter the time in 24 hour HH:MM:SS
format, using the keypad. Valid hour (HH) values are 00 to 23. Valid minute (MM) and
second (SS) values are 00 to 59.
To change the Current Time:
1. Press
2. Select “TIME SET:” with the
corner of the display area.
3. Press
4. Press
5. Press , , or to set the time.
Move the blinking cursor left with the
Pressing the
Pressing the
ÆSYSTEM SETUPÆ to open SYSTEM SETUP mode.
or key. So, the “Edit” appears at the bottom-left
key .
or key. The cursor indicates the selected digit. (hh:mm:ss)
key and right with the key.
key increases the value of the blinking digit.
key decreases the value of the blinking digit.
6.4.2. Setting the Date
“DATE SET:” allows the user to set the date of the real-time clock. Enter the date in DD-MM-
YY format using the keypad. Valid year (YY) values are 00 through 99. Valid month (MM)
values are 01 to 12, and valid day values are 01 to 31.
To change the Current Date:
1. Press
2. Select “DATE SET:” with the
corner of the display area.
ÆSYSTEM SETUPÆ to open SYSTEM SETUP mode.
or key. So, the “Edit” appears at the bottom-left
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6. System Setup
3. Press
4. Press the
key to change the Edit mode.
or key. The cursor indicates the digit that is ready for edit. (dd:mm:yy)
5. Use the , , or keys to set the date.
Move the blinking cursor to the left with the
Pressing the
Pressing the
key will increase the value of the blinking digit.
key will decrease the value of the blinking digit.
key and to the right with the key.
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7. Specifications
7. Specifications
7.1. General Specifications
z Operational Temperature:
+32°F to +122°F (0°C to +50°C)
z Operational Relative Humidity:
< 75%
z Storage conditions:
-4°F to 140°F (-20°C to +60°C); < 75%RH
z Temperature Coefficient:
0.1 x (Specified Accuracy) per °C for temperature <64.4°F (18°C) to >82.4°F (28°C)
z Max. Voltage Input and Ground:
DC or AC 600Vrms
z Basic DC Accuracy:
0.3%
z Scope Bandwidth
5 MHz
z Meter AC Bandwidth:
20 kHz
z Power Supply
Li-ION Battery 3.7V
z Battery Life:
4 Hours with Backlight OFF, 3 Hours with Backlight ON
z Battery Charge Time
3 Hours approx.
z Battery Charge information
Class-2 transformer, Input: 120-240V AC 50/60Hz, Output: 5V DC 1A
z Display Type:
Super-Twist 132 x 128 pixels
z Equipment Dimensions:
3.5”(90mm) width x 7.7”(195mm) depth x 1.6”(40mm) height
z Equipment Weight:
1.0 lbs. (480g) approx. without Holster
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7. Specifications
7.2. Technical Specifications
Note: Accuracy is specified for a temperature of 23°C ± 5°C (75°F ± 9°F) with the relative
humidity less than 80% for a period of one year after calibration.
7.2.1. The General Oscilloscope Function
z Horizontal
Sample Rate 50 MS/s (Single CH mode), 25 MS/s (Dual CH mode)
Record Length 512 in single shot mode, 256 in all other modes
Samples / Division 25
Update Rate Real Time
Modes Single shot, Roll, Normal
Accuracy 0.01%
Sweep Rate 1uS to 5S in 1, 2, 5 sequence
z Vertical
Bandwidth 5MHz
Resolution 8 Bit
Channels Dual
Coupling AC, DC
Input impedance
Accuracy 3% ±1 Pixel
Max. Input Volts DC or AC 600Vrms
Volt / Division 50 mV to 500V in 1, 2, 5 sequence
z Triggering
Type CHA, CHB, External
Coupling AC, DC
Slope
Internal Trigger
Sensitivity
z Waveform Memory
Waveform Memory 16 Shots
1 MΩ
Rising (↑) or Falling (↓) edge
2 / 20 Division
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7. Specifications
7.2.2. The Data Logger Function
Data Logger Memory 17,000 Points
Sampling Modes Peak, Sampling Time
Sample Rate Max. 0.25S/s
Sampling interval From 1 second to 9,999 seconds
Clock Real Time Clock (RTC)
7.2.3. The Digital Multimeter Function
▪ Programmable: Record (MAX, MIN, AVG), Relative (REF, ERR), Compare (GO-NO/GO)
▪ Trend plot
z DC V
Scope V/Div DMM Range Resolution Accuracy Impedance
50m, 0.1, 0.2 1000mV 0.1mV
0.5, 1, 2 10V 0.001V
5, 10, 20 100V 0.01V
50, 100, 200,1000 1000V 0.1V ±(0.5%+5)
z AC V
Scope V/Div
50m, 0.1, 0.2 500mV 0.1mV
0.5, 1, 2 5V 0.001V
5, 10, 20 50V 0.01V
50, 100, 200,500 750V 0.1V
* For Voltages > 200V in the range 5 kHz to 20 kHz, the accuracy is not specified
z OHM
Scope V/Div DMM Range Resolution Accuracy Impedance
DMM
Range
Resolution
50~450Hz 0.45k~5kHz 5k~20kHz
±(0.75%+5) ±(2%+5)
±(0.3%+3)
Accuracy
1 MΩ
Impedance
±(3.5%+5)
1 MΩ
N/A *
1 kΩ 5 kΩ 0.001 kΩ
10 kΩ 50 kΩ 0.01 kΩ
100 kΩ 500 kΩ 0.1 kΩ
1 MΩ 5 MΩ 0.001 MΩ
7-3
±(0.5%+5)
600V DC or
AC rms
±(0.75%+10)
Model 381395 Version 1.0 January 2008
Page 54
z Continuity Buzzer
Test Voltage Threshold Over Load Protection
1.7V 100 digits 600V DC or AC rms
z Frequency [Full Auto Range]
Range Resolution Accuracy Overload protection
100 Hz 0.01 Hz
1 kHz 0.0001 kHz
10 kHz 0.001kHz
100 kHz 0.01kHz
1 MHz 0.0001MHz
10 MHz 0.001MHz
z RPM
Range Resolution Accuracy
0 – 9,999 1 RPM ±(0.05%+5)
z Pulse Width [Full Auto Range]
Range 2uS-500mS (Pulse Width > 2uS)
z % Duty
Range 25% - 75%
7. Specifications
600V DC
±(0.05%+5)
or AC rms
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8. PC Interface Operation
8. PC Interface Operation
8.1. USB HID Device Installation
8.1.1. System Requirements
1) IBM or compatible Personal Computer (PC)
2) Windows
3) CD-ROM Drive
4) USB Port
8.1.2. Operating System
z Microsoft WindowsTM XP or above
TM
operating system
8.2. PC USB port Connection
1) Connect the USB cable to the meter and to the PC
2) Press and hold the I/O key for 1 to 2 seconds to power the meter
8.2.1. Human Interface Device
When the meter is connected to the PC and then powered up, the PC should display
"Found New Hardware" and automatically install the Human Interface Device (HID) driver.
HIDs do not require a custom USB driver (HIDs are built into the Windows
system).
TM
operating
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8. PC Interface Operation
8.3. Installing the WindowsTM Application Software
1) Insert the software CD into the CD-ROM drive of the PC.
2) Open Windows
3) Auto Run or simply double click on Setup.exe
[Step 1: Choose Setup Language] [Step 2: Preparing to Install]
®
Explorer and double-click the CD-ROM drive.
[Step 3: Welcome…] [Step 4: Ready to Install the Program]
[Step 5: Installing Software] [Step 6: Install Wizard Completed]
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8. PC Interface Operation
8.4. Running the Application Software
1) Connect the meter to the PC using the supplied USB cable.
2) Turn the Meter ON
3) Run the software
The Software window will open as shown below:
8.4.1. Oscilloscope Mode
1) Click the [LINK] Button and then the [Start] Button.
①LINK Button, ②Screen Print,
1
2
3
4
③Set the System Time and Date ④Start / Stop Button
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8. PC Interface Operation
Display Area
1
2
3
① Sampling Time (0.001 to 9999)
② Trigger level indicator (-T)
③ Trigger point indicator (T)
Control Panel Area
④ Channel A (Vertical Position, Division,
6
Auto, ON/Off and DC coupling)
5
⑤ Channel B (Vertical Position, Division,
4
7
8
Auto, ON/Off and DC coupling)
⑥ Horizontal Division and Trigger
(Horizontal Division, Auto, Trigger
Level, Source and Position)
⑦ Measurement Function (
BZ, Hz, RPM, Pulse Width and Duty
⑧ Storing and Recalling Screens
DCV, ACV, OHM,
)
8.4.2. DMM & Data Logger Mode
1) Click the [DMM & Logger] tap
① LINK Button, ② Start / Stop Button
8-4
1
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Model 381395 Version 1.0 January 2008
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2) Click the [Start] Button
8. PC Interface Operation
Control Panel Area for DMM & Logger
1
2
① Sampling Time (0.001 to 9999)
② Primary Numerical Field (Data Logger
3
4
and DMM Function)
③ Set the Measurement Function
④ Measurement Range
5
⑤ Display Mode
Data Display Area for Data Logger
⑥ Display the number of logged data
6
7
No., Time and the measured data.
(EOD: End of Data)
8
⑦ File Name
9
⑧ Save the logged data to PC
10
⑨ Load the logged data from PC
11
⑩ Saved File Type
⑪ Print Button
(Text or Excel file)
8.4.3. Display Mode for DMM & Data Logger Mode
DATA LOGGER MODE RECORD MODE
z Sample Method:
Time: Sample (interval) Mode
Peak: Peak Detect Mode
z Sample Time: Sampling interval time, 1Sec
to 9,999Sec
z Start Address: Set the Start Address
z Stop Address: Set the Stop Address (to
17,000)
- Set: Set Button for Data Logger
- Clear: Erase for Logged data of display
- Recall: Displays stored readings and buffer
statistics
- Start: Start the Data Logger
z MAX / AVG / MIN: update only when a new
maximum/ average/ minimum value is
detected.
z Total Samples: Total quantity sampled data
z Elapsed Time: Total elapsed time
- Reset: All data set to zero
- Pause: Freezes the displayed value
- Hold: Freeze the screen at any time
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RELATIVE MODE COMPARE MODE
z REF: Reference value
z DIF: Difference value, Difference =
Measured value– Reference
z ERR: Error rate, ERR % = Difference /
Reference x 100
z Mean ERR: The mean error
z Elapsed Time: Total elapsed time
- SetUp: Open Setup mode for Relative mode
- Reset: All data set to zero
- Pause: Freezes the displayed value
- Hold: Freeze the screen at any time
8. PC Interface Operation
z HI Limit: Set value for HI limit
z LO Limit: Set value for LOW limit
z Reading: Reading value
z Pass Muster: Total passes
z Elapsed Time: Total elapsed time
- SetUp: Open Setup mode for Compare mode
- Reset: All data set to zero
- Pause: Freezes the displayed value
- Hold: Freeze the screen at any time
TREND PLOT MODE
z Plot Mode: Line or Dot
z Offset: The centerline value on the trend
graph
z V/Division: V/DIV is the Y axis (amplitude).
z H/Division: H/Div is the X axis (time)
- Set: The Plot mode, Offset, Horizontal and
Vertical axis values are displayed.
- Clear: Erase the graph
- Start: Starts plotting the graph using the Offset
value as the centerline.
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9. Maintaining the Meter
9. Maintaining the Meter
Warning!
z This section includes important safety information. Read and understand the following
instruction fully and maintain the instrument properly.
z The instrument must be calibrated and inspected at least once per year to maintain its
integrity, safety, and accuracy.
9.1. Section Overview
This section covers basic maintenance procedures that can be performed by the user and
also provides handling, cleaning, battery replacement, disassembly, and assembly
instructions.
9.2. Safe Static Handling
Observe the following rules for handling static-sensitive devices:
1. Handle all static-sensitive components at a static-safe work area.
Use grounded static control table mats and always wear a grounded wrist strap. Handle
boards by their nonconductive edges only; store plastic, vinyl, and Styrofoam objects
outside of the work area.
2. Store and transport all static-sensitive components and assemblies in static shielding
bags or containers. Static shielding bags and containers protect components and
assemblies from direct static discharge and external static fields. Store components in
their original packages until they are ready for use.
9.3. Cleaning the Meter
Warning!
To avoid electrical shock or damage to the meter, never allow water inside the case. To
avoid damaging the meter’s housing, never apply solvents to the meter.
If the meter requires cleaning, wipe it with a cloth that is lightly dampened with water or a
mild detergent. Do not use hydrocarbons, chlorinated solvents, or methanol-based fluids
when cleaning the meter.
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9. Maintaining the Meter
9.4. Storing the Meter
If the Meter is to be store for an extended period of time, charge the LI-ION battery pack
before storing. It is not necessary to remove the battery pack.
9.5. Calibration
The manufacturer may conduct the calibration and inspection. For more information, please
contact the manufacturer.
9.6. Replacing / Disposing of the LI-ION Battery
Warning!
To avoid electrical shock, remove the test leads and probes before replacing the battery
pack.
Caution
Handle the PCB Assembly by its edges or while wearing gloves.
Note
This instrument contains a LI-ION battery pack. Do not dispose of this battery pack with
other solid waste. Used batteries should be disposed of by a qualified recycler or hazardous
materials handler.
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Model 381395 Version 1.0 January 2008
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9.6.1. To replace the battery pack
1. Remove the Meter Case
Use the following procedure to remove
3 PCS
S1
the meter case.
① Remove the test leads
Disconnect the test leads and probes
both at the source and at the meter.
② Power OFF
Make sure the meter is turned off and
unplugged from the power Adaptor.
9. Maintaining the Meter
2. Remove Rubber key and Battery Pack
③ Remove Screws:
Remove the three screws from the
bottom of the case. (3 pcs)
④ Remove the PCB Assembly:
Remove the PCB Assembly by
releasing the four snap retainers
Rotate the PCB Assembly 180 degrees.
① Remove the Rubber Key:
② Remove the Battery Pack:
Remove the battery plug from the
connector.
3. Install a new battery pack.
4. Reinstall the rear cover and secure the screws.
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Model 381395 Version 1.0 January 2008
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10. Appendices
10. Appendices
10.1. Troubleshooting guide
If a meter problem arises, review the corrective actions below before concluding that the
instrument requires repair.
1. Ensure that a fresh Li-ION battery pack or fully charged rechargeable battery pack is used.
If using the AC/DC power adapter, ensure that the adapter is plugged into an appropriate
live power source.
2. If the keys do not respond to presses or if the display is unreadable, remove the power
source while the instrument is on and then restore operations after a 15 minute wait period.
3. If difficulties continue, check the connections.
4. If the meter’s display is frozen when trying to control the trigger level:
z In normal (NORM) mode, the trigger level must be the same level as the waveform.
The Meter does not trigger if the trigger level is set above or below the waveform level.
z In AUTO (AT) mode, the trigger level does not have to be adjusted.
z In rare cases the instrument may require servicing. There are no internal user-
serviceable parts.
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Model 381395 Version 1.0 January 2008
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10. Appendices
10.2. LCD STATUS INDICATIONS BY FUNCTION
10.2.1. Function Menu & General Scope Mode
Function
Menu
&
General
Scope
Æ Æ (1)
10.2.2. Data Logger Mode
Data
Logger
Æ Æ (2)
Æ Æ Æ Æ Æ Æ Æ
10.2.3. Multimeter / Record Mode
Æ Æ Æ
Record
Mode
Æ Æ (3)
Æ Æ Æ
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Model 381395 Version 1.0 January 2008
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10.2.4. Multimeter / Relative Mode
Relative
Mode
10. Appendices
Æ Æ (4)
Æ Æ Æ Æ Æ Æ Æ
10.2.5. Multimeter / Compare Mode
Compare
Mode
Æ Æ (5)
Æ Æ Æ Æ Æ Æ Æ
10.2.6. Multimeter / Trend Plot Mode
Trend
Plot
Æ Æ (6)
Æ Æ Æ Æ Æ Æ Æ
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10.2.7. System Setup Mode
10. Appendices
System
Setup
Æ Æ (7)
10.2.8. Trigger Setup Mode
Trigger
Setup
Æ Æ (1)Æ
Æ Æ Æ
Æ Æ Æ Æ
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
FAX 781.665.0780 - TestEquipmentDepot.com
Visit us at www.TestEquipmentDepot.com
Back to the Extech 381395 Product Page
10-4
Model 381395 Version 1.0 January 2008
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