RIGOL DM3068 QuickStart Guide

RIGOL

Quick Guide

DM3068 Digital Multimeter

Jun. 2017

RIGOL TECHNOLOGIES, INC.

RIGOL

Guaranty and Declaration

Copyright

© 2010 RIGOL TECHNOLOGIES, INC. All Rights Reserved.

Trademark Information

RIGOL is a registered trademark of RIGOL TECHNOLOGIES, INC.

Publication Number

QGC06103-1110

Notices

 RIGOL products are protected by patent law in and outside of P.R.C.
 RIGOL reserves the right to modify or change parts of or all the specifications

and pricing policies at company’s sole decision.

 Information in this publication replaces all previously corresponding material.
 RIGOL shall not be liable for losses caused by either incidental o r consequential

in connection with the furnishing, use or performance of this manual as well as
any information contained.

 Any part of this document is forbidden to copy or photocopy or rearrange

without prior written approval of RIGOL.

Product Certification

RIGOL guarantee s this p roduct co nfo rms to the national and industri al sta ndards i n
China as well as the ISO9001:2008 standard and the ISO14001:2004 standard.
Other international standard conformance certification is in progress.

Contact Us

If you have any problem or requirement when using our products or this manual,
please contact RIGOL.
E-mail: [e-mail]
Websites:

www.rigol.com

DM3068 Quick Guide

I

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Contents

Guaranty and Declaration .......................................................................... I

Content ..................................................................................................... II

Safety Requirement ................................................................................ III

General Safety Summary .......................................................................... III

Safety Terms and Symbols ....................................................................... VII

General Care and Cleaning ...................................................................... VIII

Environmental Considerations .................................................................... IX

Quick Start ................................................................................................. 1

General Inspection ..................................................................................... 1

Handle Adjustment ..................................................................................... 2

Appearance and Dimensions ....................................................................... 3

The Front Panel.......................................................................................... 4

The Rear Panel .......................................................................................... 8

User Interface .......................................................................................... 11

First-use of Multimeter .............................................................................. 12

Measurement Connections ........................................................................ 13

Using the Built-in Help System .................................................................. 16

Using a Rackmount Kit .............................................................................. 17

Troubleshooting....................................................................................... 22

DM3068 Quick Guide II

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Safety Requirement

General Safety Summary

Please review the following safety precautions carefully before putting the
instrument into operation so as to avoid any personal injuries or damages to the
instrument and any product connected to it. To prevent potential hazards, please use
the instrument only specified by this manual.

Use Proper Power Cord.

Only the power cord designed for the instrument and authorized by local country
could be used.

Ground The Instrument.

The instrument is grounded through the Protective Earth lead of the power cord. To
avoid electric shock, it is essential to connect the earth terminal of power cord to the
Protective Earth terminal before any inputs or outputs.

Observe All Terminal Ratings.

To avoid fire or shock hazard, observe all ratings and markers on the instrume nt and
check your manual for more information about ratings before connecting.

Use Proper Overvoltage Protection.

Make sure that no overvoltage (such as that caused by a thunderstorm) can reach
the product, or else the operator might expose to danger of electrical shock.

Do Not Operate Without Covers.

Do not operate the instrument with covers or panels removed.

Use Proper Fuse.

Please use the specified fuses.

Avoid Circuit or Wire Exposure.

Do not touch exposed junctions and components when the unit is powered.

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Do Not Operate With Suspected Failures.

If you suspect damage occurs to the instrument, have it inspected by qualified
service personnel before further operations. Any maintenance, adjustment or
replacement especially to circuits or accessories must be performed by RIGOL
authorized personnel.

Keep Well Ventilation.

Inadequate ventilation may cause increasing of temperature or damages to the
device. So please keep well ventilated and inspect the intake and fan regularly.

Do Not Operate in Wet Conditions.

In order to avoid short circuiting to the interior of t he device or electric shock, please
do not operate in a humid environment.

Do Not Operate in an Explosive Atmosphere.

In order to avoid damages to the device or personal injuries, it is important to
operate the device away from an explosive atmosphere.

Keep Product Surfaces Clean and Dry.

To avoid the influence of dust and/or moisture in air, please keep the surface of
device clean and dry.

Electrostatic Prevention.

Operate in an electrostatic discharge protective area environment to avoid damages
induced by static discharges. Always ground both the internal and external
conductors of the cable to release static before connecting.

Handling Safety

Please handle with care during transportation to avoid damages to keys, knob and,
interfaces as well as other parts on the panels.

The disturbance tests of all models conform to the P/F values of A based
on the standard of EN 61326: 1997+A1+A2+A3 instead of P/F values of
B.

DM3068 Quick Guide IV

Input Terminal Protection Limit

The protection limit applies to input terminals:

1． Main input (HI and LO) terminals

HI and LO terminals are used for Voltage, Resistance, Capacitance, Continuity,

Frequency and Diodes measurements and should be used under the following
two conditions:

1) HI-LO protection limit: at most 1000 VDC or 750 VAC, this is also the
maximum measurable voltage. The limit can be expressed as 1000 Vpk.

2) LO-ground protection limit: at most 500 Vpk (relative) is allowed to float at
LO terminal with safety.

Since the HI terminal holds a maximum protection of 1000 Vpk relative to the
ground, the sum of the “float” and mea sured voltages cannot exceed 10 00 Vpk.

2． Sampling (HI Sense and LO Sense/200 mA) terminals

HI Sense and LO Sense/200 mA terminals are used for 4-Wire Resistance

measurement and should be used under the following two conditions:

1) HI Sense-LO Sense/200 mA protection limit: 200 Vpk.

2) LO Sense/200 mA-LO protection limits: 0.5 Vpk. The current input fuse
on the rear panel provides the current passing through LO Sense/200

mA up to 250 mA protection.

3． Current input (10 A and Sense/200 mA) terminals

10 A and LO terminals are used for current measurements of 2 A and 10 A. The

maximum current which goes through the 10 A terminal is limited to 10 A by
the internal fuse. LO Sense/200 mA and LO terminals are used for current
measurements ranging from 200 µA to 200 mA. The maximum current which go
through the LO Sense/200 mA terminal is limited to 250 mA by the internal
fuse.

NOTE:
In order to prevent the fuse from blowing out and protect the
multimeter, please use the current input terminals according to the
following requirements:

1) Do not connect the 10 A and LO Sense/200 mA input terminals into the
current measuring circuit at the same time.

2) Only use 10 A and LO terminals for measurements when the measured

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current AC+DC RMS value goes within 200 mA and 10 A.

3) Select a proper current input terminal according to the estimated current
magnitude before connect the multimeter to AC supplies if you want to use
current measurement.

4) The current into 10 A cannot exceed 13.5 A, otherwise it will blow out the
internal fuse; while the current into the LO Sense/200 mA terminal
cannot exceed 300 mA, ot herwise the current fuse from the rear panel may
be blown out.

IEC II Overvoltage Protection

In order to prevent electric shock, DM3068 provides overvoltage protection for
line-voltage mains connections meeting both of the following conditions:
1． The HI and LO input terminals are connected to the mains under Measurement

Category II conditions, defined below.

2． The mains are limited to a maximum line voltage of 300 VAC.

WARNING: IEC II includes electrical devices c onnected to mains at an outlet on a

branch circuit. Such devices include most small appliances, test equipments and
other devices that inserted into a branch socket.
DM3068 may be used to make measurements with the HI and LO inputs connected
to mains in such devices (up to 300 VAC), or to the branch socket itself. However,
DM3068 may be used with its HI and LO inputs connected to mains from neither
permanently installed electrical device such as a main circuit-breaker panel,
sub-panel disconnected box nor wired motors. Such devices and circuits are readily
to beyond the protection from DM3068.

NOTE: Voltages above 300 VAC may be measured only in circuits that are isolated
from mains. However, a transient overvoltage is also present in such circuits.
DM3068 was designed to safely withstand occasional transient overvoltage up to
2500 Vpk. Do not use this device to measure circuits whose transient overvoltage
may exceed this level.

DM3068 Quick Guide VI

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Hazardous

Safety

Protective

Chassis

Test

Safety Terms and Symbols

Terms in this Manual. These terms may appear in this manual:

WARNING

Warning statem ents indicate the conditions or practices that could r esult in
injury or loss of life.

CAUTION

Caution statements indicate the conditi ons or pr actices that coul d result in
damage to this product or other property.

CAT I (1000V)

IEC Measurement Category I. The maximum voltage can be measured by
HI-LO terminal is 1000Vpk.

CAT II (300V)

IEC Measurement Category II. Inputs may be connected to mains (up to
300VAC) in the case of overvoltage in Category II.

Terms on the Product. These terms may appear on the product:

DANGER indicates an injury or hazard may immediately happen.
WARNING indicates an injury or hazard may be accessible potentially.
CAUTION indicates a potential damage to the instrument or other property might

occur.

Symbols on the Product. These symbols may appear on the product:

Voltage

DM3068 Quick Guide

Warning

Earth
Terminal

Ground

Ground

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General Care and Cleaning

General Care:

Do not store or leave the instrument in where the instrument will be exposed to
direct sunlight for long periods of time.

Cleaning:

Clean the instrument regularly according to its operating conditions. To clean the
exterior surface, perform the following steps:

1. Disconnect the instrument from all power sources.

2. Clean the lo ose dust on the outsi de of the instrumen t with a lint - free cloth (with

a mild detergent and water). When clean the LCD, take care to avoid scarifying
it.

CAUTION

To avoid damages to the instrument, do not expose them to liquids which
are corrosive.

WARNING

To avoid injury resulting from short circuit, make sure the instrument is
completely dry before reconnecting into a power source.

DM3068 Quick Guide VIII

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Environmental Considerations

The following symbol indicates that this product complies with the applicable
European Union requirements according to Directives 2002/96/EC on waste electrical
and electronic equipment (WEEE) and batteries.

Product End-of-Life Handling

The equipment may contain substances that could be harmful to the environment or
human health. In order to avoid release of such substances into the environment and
harmful to human health, we encourage you to recycle this product in an appropriate
system that will ensure that most of the materials are reused or recycled
appropriately. Please contact your local authorities for disposal or recycling
information.

DM3068 Quick Guide

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Quick Start

General Inspection

1． Inspect the shipping container for damage

Keep the damaged shipping container or cushioning material until the contents
of the shipment have been checked for completeness and the instrument has
passed both electrical and mechanical tests.
The consigner or carrier shall be liable for the damage to the instrument
resulting from shipment. RIGOL would not be responsible for free
maintenance/rework or replacement of the unit.

2． Inspect the instrument

In case of any damage, or defect, or failure, notify your RIGOL sales
representative.

3． Check the accessories

Please check the accessories according to the packing lists. If the accessories
are incomplete or damaged, please contact your RIGOL sales representative.

DM3068 Quick Guide

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Handle Adjustment

T o adjust the handle positi on of the multimeter, grip the handle in both sides a nd pull
it outward, then rotate th e handle to a desired position, see figure below.

Figure 1 Handle Adjustment

Viewing Position Carrying Position

Figure 2 Locate the Multimeter

DM3068 Quick Guide 2

Appearance and Dimensions

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Figure 3 Front Elevation Unit: mm

Figure 4 Side Elevation Unit: mm

DM3068 Quick Guide

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MENU

FUNC

5.Power 6. Measurement 7. Menu Operation 8.Advanced 9.Range 10.Signal Input

The Front Panel

1.USB Host 2.LCD 3.Auto Trigger 4.Single Trigger
/Reading Hold /Local Mode

Button Function Keys Keys Menu Keys /Direction Keys

Figure 5 Front Panel Overview

1. USB Host

It supports all FAT-format USB flash devices. By using this interface, users can
easily save the current instrument status and measured data into such device
for future use.

2. LCD

This is a 256 x 64 monochrome L CD that can display the curren t function menus,
measurement parameters, system configuration and status and so on.

3. Auto Trigger/Reading Hold
Continuously pressing this ke y can switch between auto trigger and reading hold
functions.
 Auto Trigger: the backlight always on; the multimeter continuously takes

readings at the fastest rate possible for the present configuration.

DM3068 Quick Guide 4

 Reading Hold: the backlight blinks; the multimeter obtains a stable reading

and displays.

4. Single Trigger/Local Mode

Pressing this key during the front panel operation will cause the multimeter
generate one reading o r specified number of readings (S NO.) and then wait for
the next trigger. Whatever, this key is also an access to local mode from remote
control.

5. Power Button

Turns on or off the multimeter. Users can enable or disable this key as required.
Press  System  Cfg  Switch and select On or Off.

6. Measurement Function Keys

Basic Measurement Keys

DC Voltage Measurement (DCV)
AC Voltage Measurement (ACV)
DC Current Measurement (DCI)
AC Current Measurement (ACI)
Resistance Measurement (OHM)
Capacitance Measurement (CAP)
Continuity Test (CONT)
Diode Test (DIODE)
Frequency/Period Measurements (FREQ/PERIOD)
Any Sensor Measurements (SENSOR), such as DCV, DCI, 2WR, 4WR,
FREQ, TC (thermoelectric couple), RTD (resistance temperature
detectors), THERM (thermistor).

Common Function Keys

Quickly save or recall at least 10 groups of instrument settings.

Secondary Function key

 Enables the dual display.
 Quickly saves the current instrument configuration in connection

with .

 Quickly enters the setting interface of relative measurement.

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7. Operation Menu Keys

Activates the corresponding menu.

8. Assistant Functions

Sets all the measurement parameters.

Performs math operations (statistic, P/F, dBm, dB, REL) for measured
results and displays real-time measurements in trend graph and
histogram.

Provides auto, single, external and level trigger sources; enables to
set the reading hold function, samples per trigger, delay time before
reading and edge of the trigger input signal as well as the trigger
output parameter.

Saves, recalls and deletes data and parameter files from both internal
memory and external USB devices.

Sets the command set, interface parameters and system information,
tests the multimeter and displays error messages.

Provides common help information and the method to use built-in
help. The multimeter allows users to quickly recall the help
information about any front panel keys and menu softkeys.

9. Range/Direction Keys

Enables auto range.

 Configures the measurement parameters.
 Selects the digit position while entering a parameter.

 Increases or decreases the measurement range.
 Enters desired numeric value while setting a parameter.
 Pages up or down.

DM3068 Quick Guide 6

10. Signal Input Terminals

The measured signal (device) will be connected into the multimeter through
these terminals. Different measured objects have different connection methods.
for details please see “Measurement Connections”.

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9.Power Fuse 11.Power Switch

The Rear Panel

1. Curr Input Fuse

1.Curr Input Fuse 2. LAN Port 3.GPIB Port 4.Power Socket

6.Ext Trig Input 8.RS232 Port 10.Voltage Selector

5.VMC Output 7.USB Device Port

Figure 6 Rear Panel Overview

The multimeter uses two kinds of fuses for protectin g high and low curre nts and
both fuses were already installed before leaving factory. The current into 10 A
cannot exceed 13.5 A, otherwise it will blow out the internal fuse; while the
current into LO Sense/200 mA terminal cannot exceed 300 mA, otherwise the
current fuse from the rear panel may be blown out. To replace the low current
fuse, please:

1) Cut off the power supply.

2) Pull out the fuse seat by turning a straight screwdriver counterclockwise as

shown in the figure.

3) Place a new specified fuse.

4) Reinstall the fuse seat into the slot.

NOTE: The high current fuse stands inside the multimeter and is not
allowed to be replaced by users themselves. If such work must be
done, send your multimeter back to the factory.

DM3068 Quick Guide 8

2. LAN Port

Provides the multimeter an access to LAN f or remote controlling. The multimeter
conforms to LXI-C standards; it can be used in connection with other standard
devices for a testing system built, easily approaching a LAN based system
integration.

3. GPIB Port

Conforms to IEEE-488.2 standards.

4. Power Socket

The multimeter allows two types of AC supplies. Users should use the power
cord that came with your multimeter to connect the multimeter to the AC power
through this socket. Note a proper voltage scale must be first selected (through
the Voltage Selector) before power connection.

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Figure 7 Connect the Power Cord

5. VMC Output

Outputs a low-true pulse from [VM Comp] terminal after every measurement
when VM output is enabled (  VMC  ON).

6. Ext Trig Input

Triggers the multimeter by connecting a trigger pulse through [Ext Trig]
connector. Note the external trigger source must be selected (  Source 
Ext).

7. USB Device Port

Communicates with a computer and controls your multimeter through PC
software. It is available for USB-TMC devices.

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8. RS232 Port

Provides an access for multimeter controlling through PC software and outputs
P/F test result.

9. Power Fuse

The multimeter is already installed a power fuse before leaving fac tory. To
replace a new one, please:

1) Cut off the power supply.

2) Press down the block tongue using a straight screwdriver (in the direction of

the dotted arrow in figure below) and pull out of the fuse seat.

3) Select a proper voltage scale.

4) Replace a specified fuse.

5) Reinstall the fuse seat into the slot.

Figure 8 Replace the Power Fuse

WARNING

In order to avoid electric shock or fire, please just use the specified fuse
and make sure the fuse holder is in good connection and not shorted.

10. Voltage Selector

Select a proper voltage scale according to the used AC supply: 115 V or 230 V.

11. Power Switch

Connect or disconnect the AC supply. If the front power button is disabled (
 System  Cfg  Switch  OFF), turning on this switch will directly start up
the multimeter.

DM3068 Quick Guide 10

User Interface

REL on

Single Display

Figure 9 User Interface (Single Display)

Dual Display

Main Function
Run Indication

Main Reading

Range

Measurement parameter

Math

STA
MAX
MIN
AVG
P/F
dBm
dB

LXI: LAN Control
Rmt: Remote Control

Mode

Local: Local Control

: USB Storage

Vice Reading
Vice Function

Operation Menus

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Figure 10 User Interface (Dual Display)

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First-use of Multimeter

Start your multimeter according to the following steps when first use.

1． Connect the AC Power Supply

1) Select an appropriate voltage scale according to the present AC power using
the voltage selector on the rear panel.

2) Insert one end of the supplied power cord into the ac outlet and the other
end into the power socket on the rear panel.

2． Turn On the Multimeter

Turn on the power switch under the power socket and the po wer but ton on the
front panel. Note the multimeter will directly start after you turning on t he rear
power switch if the front power button is disabled (  System  Cfg 
Switch  OFF).

3． Boot Process

1) Normal start: the multimeter executes self-test and then enters the user
interface.

2) Start with a USB device having update file inserted: the multimeter directly
updates if an update file is detected and then starts.

4． If the multimeter does not starts normally, please:

1) Make sure the power cord is in good connection.

2) Make sure the rear power switch is turned on.

3) Try to restart the multimeter, if it fails, check the power fuse and replace a
new one when necessary.

4) If the problem still remains, contact RIGOL.

DM3068 Quick Guide 12

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-

-

Measurement Connections

DM3068 was designed with many measurement functions and different
measurements have different connections. Do not discretionarily switch the
measurement function when measuring as it may cause damage to the multimeter.
For example, when the test leads are connected to the rela ted current terminals, AC
voltage measurement should not be taken.

DCV Measurement ACV Measurement

+

DCV

+

ACV

DCI/ACI Measurement (Low Current) DCI/ACI Measurement (High Current)

DCI/ACI +

+ DCI/ACI

NOTE:
In order to protect the multimeter, please execute DC/AC current
measurement following the requirements below:

1. Do no t connect the 10 A and LO Sense/200 mA input terminals into the
current measuring circuit at the same time.

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-

-

2. Select a proper current input terminal according to the estimated current
magnitude before connect the multimeter to AC supplies if you want to use
current measurement.

3. Only use 10 A and LO terminals for measurements when the measured current
AC+DC RMS value goes within 200 mA and 10 A.

Resistance Measurement (2-wire) Resistance Measurement (4-wire)

+
2WR

Capacitance Measurement

+

Capacitance

Continuity Measurement Diode Measurement

+

Open or

Closed Circuit

+
4WR

+

Open or

Closed Circuit

DM3068 Quick Guide 14

Frequency/Period Measurement

-

+

AC Signal

Any Sensor Measurement
(For DCI sensor)

+ Sensor

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Any Sensor Measurement
(For DCV, 2WR, FREQ, TC, 2-wire RTD and
THERM sensors)

Any Sensor Measurement
(For DCV, 2WR, FREQ, TC, 2-wire RTD
and THERM sensors)

+

Sensor

+

Sensor

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Using the Built-in Help System

The built-in help system provides information for users to quickly recall and use the
basic functions of the instrument as well as how to use the built-in help system,
including key (front panel) help and menu help. Press
interface.

Figure 11 Help Topics

Table 1 Help Menu

Menu Description

Select Go to the selected help topic

Help Topics

1. The method of the test leads.

2. Common measurement.

3. Math.

4. Sensor.

5. Store and recall.

6. Utility.

7. I/O interface.

8. Online help.

9. To change the power fuse.

10. Support.

Cursor up
Cursor down
Page up
Page down
Go to the previous menu

to enter the following

DM3068 Quick Guide 16

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Using a Rackmount Kit

DM3068 can be mounted in a standard 19-inch rack cabinet. Before any kit
installations, please remove the package or cushioning material from the multimeter
body.

Kit Parts List

Table 2 Kit Parts List

No. Name Qty Part Number Description

1-1 Front Panel 1 RM-DM-3-01 ­1-2 Support Board 1 RM-DM-3-02 ­1-3 Left Plate 1 RM-DM-3-03 ­1-4 Right Plate 1 RM-DM-3-04 ­1-5 Fixed Finger 2 RM-DM-3-05 ­2-1 M4 Screw 16 RM-SCREW-01 M4*8 Phil-Slot Pan Head Machine Screw Nail
2-2 M6 Screw 4 RM-SCREW-02 M6*20 Phil-Slot Pan Head Machine Screw Nail

2-3

M6 Nut 4 RM-SCREW-03 M6*4 Square Machine Female Screw with

Lock Blade

2-1 2-2 2-3

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Tool Requirements

A PH2 cross screwdriver is recommended.

Space Requirements

The DM3068 should be mounted under the following spaces:

 The machine cabinet should be a standard 19-inch one.
 At least a 3U space (133.5 mm) should be provided by machine cabinet.
 The depth inside the machine cabinet should not be less than 400 mm.

Dimensions after the rackmount kit on:

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Procedure of Installation

This operation should be executed only by authorized officer. Improper or incorrect
operations may cause installation fails or damages to the multimeter.

1. Remove the handle from the multimeter: grip the handle in both sides and pull it
outward. Then, push the unit upward to release it from the instrument.

2. Install left and right plates: aim the detents of right and left plates at the
openings on support board and insert selectively, then fix them using eight M4
screws.

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3. Place the instrument: aim the parallels at the corresponding openings and then
put the multimeter onto the support board.

4. Fix the instrument: fasten or fit the instrument tightly into the support board
using two fixed fingers in connection with four M4 screws.

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5. Mount the front panel: aim the front panel opening at the front of instrument
and fix them using four M4 screws.

6. Load into machine cabinet: mount the rack with instrument-fixed onto a
standard 19-inch machine cabinet usin g four M6 screws and four M6 square nuts,
respectively.

7. Note the rock holds a height of 3U, holes in compliance with the arrow direction
are the mounting holes for rack.

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Troubleshooting

To help you solve commonly encountered problems, we have listed some typical
issues with their respective solutions. If the problems persist, contact RIGOL and
prepare your device information (Utility T/C  Info).

1. The screen still dark (no display) after power on:

(1) Check if the power cord is well connected.
(2) Check if the power switch on the rear panel is switched on.
(3) Check if the safety fuse has melted and replace a new one when necessary.
(4) Having done with the above steps, restart the instrument.
(5) If the problem persists please contact RIGOL for service options.

2. The reading is constant when a current signal is input:

(1) Check if the test le a d is correctly in se rted t o the current and/or LO terminals.
(2) Check if the current fuse on the rear panel has melted.
(3) Check if the measuremen t function is switched to DCI or ACI.
(4) Check if the enabled measurement function matches with the actual input

current.

3. The reading is abnormal when a DC signal is input:

(1) Check if the test lead is correctly inserted to the current and/or LO terminals.
(2) Check if the current fuse on the rear panel has melted.
(3) Check if the measurement function is switched to DCI or DCV.
(4) Check if the enabled measurement function matches with the actual input

current.

4. The USB flash device cannot be identified:

(1) Check if the USB flash device is in good condition.
(2) Make sure the USB device you used is a flash device.
(3) Check the capacity of your USB device. A USB flash device with less than 4G

bytes capacity is recommended.
(4) Restart the multimeter and insert the USB flash device.
(5) If the problem persists please contact RIGOL for service options.

DM3068 Quick Guide 22