Owon XDM Series User manual

XDM Series
Digital Multimeters
User Manual
■XDM3041
■XDM3051
www.owon.com.cn

Oct. 2017 edition V1.0.3
Copyright © LILLIPUT Company. All rights reserved.
The LILLIPUT's products are under the protection of the patent rights, including ones which have
already obtained the patent rights and those which are applying for. The information in this manual
will replace all materials published.
The information in this manual was correct at the time of printing. However, LILLIPUT will continue to
improve products and reserves the rights to change specification at any time without notice.
is the registered trademark of the LILLIPUT Company.
Fujian LILLIPUT Optoelectronics Technology Co., Ltd.
No. 19, Heming Road
Lantian Industrial Zone, Zhangzhou 363005 P.R. China
Tel: [phone] Fax: [phone]
Web: www.owon.com.cn E-mail: [e-mail]

General Warranty
OWON warrants that the product will be free from defects in materials and workmanship
for a period of 3 years (1 year for accessories) from the date of purchase of the product
by the original purchaser from the OWON Company. This warranty only applies to the
original purchaser and is not transferable to the third party.
If the product proves defective during the warranty period, OWON either will repair the
defective product without charge for parts and labor, or will provide a replacement in
exchange for the defective product. Parts, modules and replacement products used by
OWON for warranty work may be new or reconditioned like new performance. All
replaced parts, modules and products become the property of OWON.
In order to obtain service under this warranty, customer must notify OWON of the defect
before the expiration of the warranty period. Customer shall be responsible for
packaging and shipping the defective product to the service center designated by OWON,
and with a copy of customer proof of purchase.
This warranty shall not apply to any defect, failure or damage caused by improper use or
improper or inadequate maintenance and care. OWON shall not be obligated to furnish
service under this warranty a) to repair damage resulting from attempts by personnel
other than OWON representatives to install, repair or service the product; b) to repair
damage resulting from improper use or connection to incompatible equipment; c) to
repair any damage or malfunction caused by the use of non-OWON supplies; or d) to
service a product that has been modified or integrated with other products when the
effect of such modification or integration increases the time or difficulty of servicing the
product.
Please contact the nearest OWON's Sales and Service Offices for services or a complete
copy of the warranty statement.
For better after-sales service, please visit www.owon.com.cn and register the purchased
product online.
Excepting the after-sales services provided in this summary or the applicable warranty statements,
OWON will not offer any guarantee for maintenance definitely declared or hinted, including but not
limited to the implied guarantee for marketability and special-purpose acceptability. OWON should
not take any responsibilities for any indirect, special or consequent damages.

i
Table of Contents
1.Safety Information....................................................................................................1
Safety Terms and Symbols................................................................................................... 1
General Safety Requirements.............................................................................................. 2
Measurement Limits ........................................................................................................... 3
Main Input Terminals (HI Input and LO Input) Measurement Limits ....................................................... 3
Current Input Terminal (I) Measurement Limits ...................................................................................... 3
Sense Terminals (HI Sense and LO Sense) Measurement Limits.............................................................. 4
Measurement Category....................................................................................................... 4
2.Quick Start................................................................................................................5
General Inspection.............................................................................................................. 5
Dimensions......................................................................................................................... 5
Foot Stool Adjustment ........................................................................................................ 6
Front Panel Overview.......................................................................................................... 6
Rear Panel Overview........................................................................................................... 8
User Interface..................................................................................................................... 9
AC Power Input Setting ......................................................................................................10
Power On ..........................................................................................................................11
Measurement Connections ................................................................................................11
3.Functions and Operations....................................................................................... 13
To Set The Range ...............................................................................................................13
Measurement Speed and Resolution ..................................................................................14
Basic Measurement Functions............................................................................................15
Measuring DC Voltage............................................................................................................................ 15
Measuring AC Voltage ............................................................................................................................ 16
Measuring DC Current............................................................................................................................ 17
Measuring AC Current ............................................................................................................................ 18
Measuring Resistance............................................................................................................................. 19
Continuity Test ....................................................................................................................................... 21
Diode Test .............................................................................................................................................. 22
Measuring Capacitance .......................................................................................................................... 23
Measuring Frequency and Period .......................................................................................................... 24
Measuring Temperature ........................................................................................................................ 25
Dual Display.......................................................................................................................27
Triggering ..........................................................................................................................28
Auto Trigger............................................................................................................................................ 28
Single Trigger.......................................................................................................................................... 28
External Trigger ...................................................................................................................................... 29

ii
Math .................................................................................................................................30
Statistics ................................................................................................................................................. 30
Limits ...................................................................................................................................................... 30
dB/dBm .................................................................................................................................................. 31
Relative Value......................................................................................................................................... 31
Display ..............................................................................................................................33
Number .................................................................................................................................................. 33
Bar Meter ............................................................................................................................................... 33
Trend Chart ............................................................................................................................................ 34
Histogram ............................................................................................................................................... 34
Data Record Function.........................................................................................................36
Manual Record ....................................................................................................................................... 36
Auto Record............................................................................................................................................ 37
Port Configuration .............................................................................................................39
Serial....................................................................................................................................................... 39
Trigger .................................................................................................................................................... 39
Output .................................................................................................................................................... 39
Net Type ................................................................................................................................................. 39
LAN ......................................................................................................................................................................39
Utility Menu ......................................................................................................................40
Language ................................................................................................................................................ 40
Backlight ................................................................................................................................................. 40
Clock ....................................................................................................................................................... 40
SCPI......................................................................................................................................................... 40
Default .................................................................................................................................................... 40
System Info............................................................................................................................................. 42
Update firmware .................................................................................................................................... 42
LCD Test.................................................................................................................................................. 43
Key Test .................................................................................................................................................. 43
4.Measurement Tutorial.............................................................................................44
Loading Errors (DC Voltage)................................................................................................44
True RMS AC Measurements ..............................................................................................45
Loading Errors (AC Voltage)................................................................................................46
5.Troubleshooting...................................................................................................... 47
6.Technical Specifications.......................................................................................... 48
7.Appendix................................................................................................................. 52
Appendix A: Enclosure .......................................................................................................52
Appendix B: General Care and Cleaning ..............................................................................52
Appendix C: Line Fuse Replacement ...................................................................................53

1.Safety Information
1
1. Safety Information
Safety Terms and Symbols
Safety Terms
Terms in this Manual. The following terms may appear in this manual:
Warning: Warning indicates the conditions or practices that could result in
injury or loss of life.
Caution: Caution indicates the conditions or practices that could result in
damage to this product or other property.
Terms on the Product. The following terms may appear on this product:
Danger: It indicates an injury or hazard may immediately happen.
Warning: It indicates an injury or hazard may be accessible potentially.
Caution: It indicates a potential damage to the instrument or other property might occur.
Safety Symbols
Symbols on the Product. The following symbol may appear on the product:
Direct current (DC) Warning, risk of electric shock
Alternating current (AC)
Caution, risk of danger (refer to this
manual for specific Warning or
Caution information)
Both direct and
alternating current
Conforms to European Union
directives
Ground terminal
Chassis Ground
IEC Measurement Category I. The maximum measurable
voltage is 1000 Vpk in the HI -LO terminal.
IEC Measurement Category II. Inputs may be connected to AC
mains power (up to 600 VAC)
under Category II overvoltage
conditions.
This product complies with the WEEE Directive (2002/96/EC)
marking equipment. The affixed product label indicates that
you must not discard this electrical/electronic product in
domestic household waste.

1.General Safety Requirements
2
General Safety Requirements
Before any operations, please read the following safety precautions to avoid any
possible bodily injury and prevent this product or any other products connected from
damage. In order to avoid any contingent danger, this product is only used within the
range specified.
Check AC power input setting according to the standards in your own country (see
page 10, AC Power Input Setting).
Use Proper Power Cord. Use only the power cord supplied with the product and
certified to use in your country.
Product Grounded. This instrument is grounded through the power cord grounding
conductor. To avoid electric shock, the grounding conductor must be grounded. The
product must be grounded properly before any connection with its input or output
terminal.
Limit operation to the specified measurement category, voltage, or amperage
ratings.
Check all Terminal Ratings. To avoid instrument damage and the risk of electric shock,
check all the Measurement Limits and markers of this product. Refer to the user's
manual for the Measurement Limits before connecting to the instrument. Do not
exceed any of the Measurement Limits defined in the following section.
Do not operate without covers. Do not operate the instrument with covers or panels
removed.
Use Proper Fuse. Use only the specified type and rating fuse for this instrument.
Avoid exposed circuit. Do not touch exposed junctions and components when the
instrument is powered.
Do not operate if in any doubt. If you suspect damage occurs to the instrument,
have it inspected by qualified service personnel before further operations.
Use your instrument in a well-ventilated area. Inadequate ventilation may cause
increasing of temperature or damages to the device. Please keep well ventilated and
inspect the intake regularly.
Do not operate in wet conditions. In order to avoid short circuiting to the interior of
the device or electric shock, please do not operate in a humid environment.
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry.
Only the qualified technicians can implement the maintenance.

1.General Safety Requirements
3
Measurement Limits
The protection circuitry of the multimeter can prevent damage to the instrument and
protect against the danger of electric shock, when the Measurement Limits are not
exceeded. To ensure safe operation of the instrument, do not exceed the Measurement
Limits shown on the front panel, it is defined as follows:
The user-replaceable 10 A current-protection fuse is on the front panel. To maintain
protection, replace fuse only with fuse of the specified type and rating. About the
specified type and rating of the fuse, please refer to "7 Current Terminal Fuse" in "Front
Panel Overview" on page 7.
Main Input Terminals (HI Input and LO Input) Measurement Limits
The HI and LO input terminals are used for voltage, resistance, continuity, frequency
(period), capacitance, diode, and temperature test measurements. Two Measurement
Limits are defined for these terminals:
HI Input to LO Input Measurement Limit
The Measurement Limit from HI Input to LO Input is 1000 VDC or 750 VAC, which is
also the maximum voltage measurement. This limit can also be expressed as 1000
Vpk maximum.
LO Input to Ground Measurement Limit
The LO input terminal can safely "float" a maximum of 500 Vpk relative to ground,
where ground is defined as the Protective Earth Conductor in the AC mains power
cord connected to the instrument.
As implied by the above limits, the Measurement Limit for the HI input terminal is a
maximum of 1500 Vpk relative to ground when LO Input is at its maximum of 500 Vpk
relative to ground.
Current Input Terminal (I) Measurement Limits
The Measurement Limit from the current input terminal (I) to the LO Input terminal is 10
A (DC or AC). Note that the current input terminals will always be at approximately the

1.General Safety Requirements
4
same voltage as the LO Input terminal, unless a current protection fuse is open.
Sense Terminals (HI Sense and LO Sense) Measurement Limits
The HI and LO sense terminals are used for four-wire resistance measurements.
The Measurement Limit from HI Sense to LO Input is 200 Vpk.
The Measurement Limit from HI Sense to LO Sense is 200 Vpk.
The Measurement Limit from LO Sense to LO Input is 2 Vpk.
Note: The 200 Vpk limit on the sense terminals is the Measurement Limit. Operational
voltages in resistance measurements are much lower – up to ± 12 V in normal operation.
Measurement Category
The safety rating of the multimeter:
1000 V, CAT I
IEC Measurement Category I. The maximum measurable voltage is 1000 Vpk in the HI -LO
terminal.
600 V, CAT II
IEC Measurement Category II. Inputs may be connected to AC mains power (up to 600
VAC) under Category II overvoltage conditions.
Measurement category definition
Measurement CAT I applies to measurements performed on circuits not directly
connected to the AC mains. Examples are measurements on circuits not derived from the
AC mains and specially protected (internal) mains- derived circuits.
Measurement CAT II applies to protect against transients from energy-consuming
equipment supplied from the fixed installation, such as TVs, PCs, portable tools, and
other household circuits.
Measurement CAT III applies to protect against transients in equipment in fixed
equipment installations, such as distribution panels, feeders and short branch circuits,
and lighting systems in large buildings.
Measurement CAT IV applies to measurements performed at the source of the low-
voltage installation. Examples are electricity meters and measurements on primary over
current protection devices and ripple control units.

2.Quick Start
5
2. Quick Start
General Inspection
After you get a new multimeter, it is recommended that you should make a check on the
instrument according to the following steps:
1. Check whether there is any damage caused by transportation.
If it is found that the packaging carton or the foamed plastic protection cushion has
suffered serious damage, do not throw it away first till the complete device and its
accessories succeed in the electrical and mechanical property tests.
2. Check the Accessories
The supplied accessories have been already described in the Appendix A: Enclosure
of this Manual. You can check whether there is any loss of accessories with reference
to this description. If it is found that there is any accessory lost or damaged, please
get in touch with the distributor of OWON responsible for this service or the
OWON's local offices.
3. Check the Complete Instrument
If it is found that there is damage to the appearance of the instrument, or the
instrument can not work normally, or fails in the performance test, please get in
touch with the OWON's distributor responsible for this business or the OWON's local
offices. If there is damage to the instrument caused by the transportation, please
keep the package. With the transportation department or the OWON's distributor
responsible for this business informed about it, a repairing or replacement of the
instrument will be arranged by the OWON.
Dimensions
235 mm
110 mm