User Manual
SDM3045X Digital Multimeter
UM06034-E01A
2016 SIGLENT TECHNOLOGIES CO., LTD
SIGLENT
Copyright and Statement
Copyright
SIGLENT TECHNOLOGIES CO., LTD. All rights reserved.
Trademark Information
SIGLENT is registered trademark of SIGLENT TECHNOLOGIES CO., LTD.
Statement
● SIGLENT products are protected by patent laws in and outside of the P.R.
China.
● SIGLENT reserves the rights to change the specification and price.
● Information in this publication replaces all previous corresponding
published material.
● Contents in this manual are not allowed to be copied, extracted or
translated in any form or by any means without SIGLENT‟s permission.
SDM3045X Digital Multimeter I
SIGLENT
General Safety Summary
Read the following safety precautions carefully to avoid any personal injuries
or damages to the instrument and any products connected to it. To avoid
potential hazards, please use the instrument as specified.
Use proper power line.
It‟s only allowed to use the special power line which is approved by local
state.
Ground the instrument.
The instrument is grounded through the protective terra conductor of the
power line. The ground conductor must be connected to the earth to avoid
electric shock. Make sure the instrument is grounded correctly before
connecting its input or output terminals.
Connect the signal wire correctly
The potential of the signal wire is equal to the earth, so do not connect the
signal wire to a high voltage.
Observe all terminal ratings
Please observe all ratings and sign instructions on the instrument to avoid fire
or electric shock. Before connecting the instrument, please read the manual
carefully to gain more information about the ratings.
Do not operate with suspected failures
If you suspect that the product is damaged, please contact SIGLENT‟s
qualified service personnel to inspect it. Any repair and adjustment to the
product or replacing a component should be done by qualified personnel
only.
Avoid circuit or wire exposure
Don‟t touch exposed contacts or components when the power is on.
Don’t operate without covers.
Don‟t operate the instrument with covers or panels removed.
Use proper fuse.
It‟s only allowed to use the specified fuse for the instrument.
Use proper over-voltage protection.
Make sure there is no over-voltage (like voltage caused by thunder and
lightning) reaching to the instrument, otherwise the operator may suffer an
electric shock.
II SDM3045X Digital Multimeter
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Antistatic protection.
Static electricity will cause damages to the instrument, so test in antistatic
areas as far as possible. Ground its inner and outer conductors to release the
static electricity temporarily before connecting the cable to the instrument.
Keep good ventilation.
Improper ventilation will cause the rise of the instrument‟s temperature. Keep
good ventilation and check the vent and fan regularly when using it.
Keep the surface of the instrument clean and dry.
Do not operate in wet or damp conditions.
Do not operate in flammable or explosive environment.
The disturbance test of all the models meets the limit values of A in the
standard of EN 61326-1:2013.
Input terminal protection limitation
Protection limitation is defined for the input terminal：
1. Main input（HI and LO）terminal
HI and LO terminals are used for Voltage, Resistance, Capacitance,
Continuity, Frequency and Diode measurement. Two protection limitations
are defined:
HI-LO protection limitation: 1000VDC or 750AVC. It‟s the maximum
measurable voltage. The limitation can be expressed as 1000Vpk.
LO-ground protection limitation ： LO terminal can “float” 500Vpk
relative to the ground safely. The maximum protection limitation of HI terminal
relative to the ground is 1000Vpk. Therefore, the sum of the “float” voltage
and the measured voltage can‟t exceed 1000Vpk.
2. Sampling (HI Sense and LO Sense) terminal
HI Sense and LO Sense are used for 4-wire Resistance measurement. Two
protection limitations are defined:
HI Sense-LO Sense protection limitation: 200Vpk.
LO Sense-LO Sense protection limitation: 2Vpk.
SDM3045X Digital Multimeter III
SIGLENT
3. Current input (I) terminal
I and LO terminals are used for current measurement. The maximum
current which go through the I terminal is limited to 10A by the fuse on the
back panel.
NOTE:
Voltage on the current input terminal corresponds to voltage on LO terminal.
To keep good protection, only use the fuse of specified type and level to
replace this fuse.
IEC Measurement Category II Over-voltage Protection
SDM3045X Digital Multimeter provides over-voltage protection for
line-voltage mains connections meeting both of the following conditions to
avoid the danger of electric shock：
The HI and LO input terminals are connected to the mains under
Measurement Category II conditions as following.
The maximum line voltage of the mains is 300VAC.
WARNING:
IEC Measurement Category II includes electrical devices connected to mains
at an outlet on a branch circuit, such as most small appliances, test
equipments, and other devices that plug into a branch outlet or socket.
SDM3045X is capable of making measurements with the HI and LO inputs
connected to mains in such devices (up to 300VAC) or the branch outlet itself.
However, the HI and LO terminals of SDM3045X can‟t be connected to mains
in permanently installed electrical devices such as the main circuit-breaker
panels, sub-panel disconnected boxes and permanently wired motors. Such
devices and circuits are prone to exceed the protection limits of SDM3045X.
NOTE:
Voltages above 300VAC only can be measured in circuits that are isolated
from mains. However, there may be transient over-voltage in circuits that are
isolated from mains. SDM3045X is able to withstand occasional transient
over-voltage up to 2500Vpk. Please don‟t use this instrument to measure
circuits that transient over-voltage may exceed this level.
IV SDM3045X Digital Multimeter
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WARNING: Warning statements indicate the conditions and
behaviors that could result in injury or loss of life.
CAUTION: Caution statements indicate the conditions and
behaviors that could result in damage to this product or other
CAT I (1000V): IEC Measurement Category I. The highest
measurable voltage is 1000Vpk in the HI-LO terminal.
CAT II (300 V): IEC Measurement Category II. Inputs may be
connected to mains (up to 300VAC) under Category II overvoltage
Hazardous
Voltage
Protective Earth
Ground
Warning
Test
Ground
Chassis
Ground
Safety Terms and Symbols
Terms in this manual. Terms may appear in this manual.
Terms used on the instrument. Terms may appear on the instrument:
DANGER indicates an injury or hazard that may immediately happen.
WARNING indicates an injury or hazard that may not immediately happen.
CAUTION indicates that a potential damage to the instrument or other
property might occur.
Symbols used on the instrument. Symbols may appear on the instrument.
SDM3045X Digital Multimeter V
SIGLENT
Introduction of SDM3045X
SDM3045X is a 4½ dual-display instrument designed with 4½ digits readings
resolution and dual-display, especially fitting to the needs of high-precision,
multifunction, and automation measurements. It realized a combination of
basic measurement functions, multiple math functions, and display functions,
etc.
SDM3045X holds a 4.3 inch color TFT-LCD display screen. Its clear keyboard
layout and operation hints make it easier and agility to use. Besides, it
supports multi-interface such as USB Device,USB Host and LAN, which can
meet users‟ demand furthest.
Main Features:
4.3 inch color TFT-LCD display screen with 480*272 high resolutions
Real 4½ digits readings resolution
Up to 150rdgs/S measurement speed
True-RMS AC Voltage and AC Current measurements
1 Gb Nand Flash size, mass storage configuration files and data files
Built-in cold terminal compensation for thermocouple
Support standard SCPI and control software on PC, compatible with
commands of main stream multimeters
Supports dual-display function, Chinese and English menu
Built-in help system, convenient to acquire information
Support USB Device, USB Host and LAN interfaces
Configuration and measured data can be imported or exported via VXI 11,
USBTMC and USB flash drive, which is convenient for users to modify,
view and backup
VI SDM3045X Digital Multimeter
SIGLENT
Abstract
The manual mainly introduces corresponding information of operating the
SDM3045X Digital Multimeter. It contains these chapters:
Chapter 1 Quick Start
Guide you to prepare the SDM3045X Digital Multimeter and know about the
Front/Back panel and user interface.
Chapter 2 Function and Operation
Introduce the functions and operations of SDM3045X in details.
Chapter 3 Application Examples
Introduce you how to use strong measurement functions of this instrument
easily through some examples.
Chapter 4 Measurement Tutorial
Guide you to eliminate the errors that may appear during your measurement
and obtain accurate result.
Chapter 5 General Troubleshooting
Provide you some general troubleshooting.
Chapter 6 Appendix
Provide you information about accessories, warranties, troubleshooting,
services and supports.
SDM3045X Digital Multimeter VII
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Content
Copyright and Statement ............................................................................... I
General Safety Summary .............................................................................. II
Safety Terms and Symbols .......................................................................... V
Introduction of SDM3045X .......................................................................... VI
Abstract ....................................................................................................... VII
Content ....................................................................................................... VIII
Chapter 1 Quick Start ................................................................................ 1
General Inspection .................................................................................... 2
To adjust the Handle ................................................................................. 3
Front Panel ............................................................................................... 4
Back Panel ................................................................................................ 5
Power On .................................................................................................. 6
User Interface ........................................................................................... 7
Chapter 2 Function and Operation ........................................................... 8
To Select Measurement Range ................................................................ 9
To Select Measurement Speed .............................................................. 11
Basic Measurement Functions ................................................................ 12
To Measure DC Voltage .................................................................. 13
To Measure DC Current .................................................................. 15
To Measure AC Voltage .................................................................. 17
To Measure AC Current ................................................................... 19
To Measure 2-Wire/4-Wire Resistance ............................................ 21
To Measure Capacitance ................................................................. 25
To Measure Frequency or Period .................................................... 27
To Test Continuity............................................................................ 31
To Test Diode ................................ .................................................. 33
To Measure Temperature ................................................................ 35
Measurement Parameters ...................................................................... 39
DC Input Impedance ........................................................................ 39
DC input impedance selection: ................................................................... 39
Short-circuit Resistance ................................................................... 40
Short-circuit Resistance: ............................................................................ 40
Dual-display Function ............................................................................. 41
Utility Function ........................................................................................ 43
Store and Recall .............................................................................. 44
Manage File ..................................................................................... 46
I/O Configuration ............................................................................. 48
Board Test ....................................................................................... 50
System Setup .................................................................................. 53
Firmware Update ............................................................................. 55
Acquire.................................................................................................... 56
Auto Trigger ..................................................................................... 57
VIII SDM3045X Digital Multimeter
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Sample Count ............................................................................................... 57
Single Trigger .................................................................................. 58
External Trigger ............................................................................... 59
Help System ........................................................................................... 60
Math Function ......................................................................................... 62
Statistics .......................................................................................... 64
Limits ............................................................................................... 66
The range of Limits function: ...................................................................... 67
dBm ................................................................................................. 68
dB .................................................................................................... 69
Relative Value ................................................................................. 70
Display Mode .......................................................................................... 71
Trigger .................................................................................................... 77
Hold Measurement Function ................................................................... 78
Chapter 3 Application Examples ............................................................ 79
Example 1: Reading Statistic Functions ................................................. 80
Example 2: To Eliminate Leads Impedance ............................................ 81
Example 3: dBm Measurement ............................................................... 83
Example 4: dB Measurement .................................................................. 84
Example 5: Limits Test ........................................................................... 86
Example 6: To Use Hold Measurement Function ................................... 88
Chapter 4 Measurement Tutorial ............................................................ 90
True RMS AC Measurement ................................................................... 90
Crest Factor Errors (non-sinusoidal inputs) ............................................ 91
Loading Errors (AC Voltage) ................................................................... 92
Chapter 5 General Troubleshooting ...................................................... 93
Chapter 6 Appendix ................................................................................. 94
Appendix A: Accessories ........................................................................ 94
Appendix B: Warranty summary ............................................................. 95
Appendix C: Daily Maintenance and Cleaning ........................................ 96
Appendix D: Contact SIGLENT ............................................................... 97
SDM3045X Digital Multimeter IX
Chapter 1 Quick Start
General Inspection
Handle Adjustment
The Front Panel
The Back Panel
To Connect Power Line
SIGLENT
User Interface
To Use Safety Lock
SDM3045X Digital Multimeter 1
SIGLENT
General Inspection
1. Inspect the shipping container.
Please keep the damaged container or cushioning material until the contents
of the shipment have been checked completely and the instrument has passed
the electrical and mechanical test.
Damages of the instrument caused by the shipment will be compensated by
the shipper or carrier. SIGLENT will not be responsible for the free repair or
replacement.
2. Inspect the instrument.
If there exit any mechanical damages or lacking of components, or the
instrument fails the electrical and mechanical test, please contact your
SIGLENT sales.
3. Check the accessories.
Check the accessories according to the packing list carefully. If there exit any
accessories damaged or missing, please contact your SIGLENT sales.
2 SDM3045X Digital Multimeter
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To adjust the Handle
Adjust the handle position of SDM3045X properly to place the instrument
stably so that users can manipulate and observe the display better. Please grip
the handle by the two sides and pull it outward. Then rotate the handle to the
appropriate position. Please operate as the following diagram.
Diagram 1- 1 Handle adjustment
Diagram 1- 2 Horizontal Position Diagram 1- 3 Carrying Position
SDM3045X Digital Multimeter 3
SIGLENT
CBFDEAA
BCDEFGG
Front Panel
SDM3045X Digital Multimeter provides users with brief and clear front panel.
These control buttons are group by logic and users only need choose
corresponding buttons to carry out basic operations, as shown in Diagram
1-4.
Diagram 1- 4 Front Panel Overview
LCD Display USB Host
Power Key Menu Operation Keys
Measurement and Assistant Function Keys
Range and Direction Keys Signal input terminals
4 SDM3045X Digital Multimeter
SIGLENT
IGHFEAB
CDC
E
IGA
BFD
H
Back Panel
SDM3045X Digital Multimeter‟s Back Panel provides users with abundant
interfaces as shown in the following diagram.
Diagram 1- 5 Back Panel Overview
Power Socket Power Fuse
AC Voltage Selector Inspection card (option)
USB Device LAN
VMC Output Ext trigger
Current Input Fuse
SDM3045X Digital Multimeter 5
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Power On
Please power on the instrument as the following steps:
1. Adjust AC Voltage Selector to 110 (100~120V, 45~440Hz, AC) or 220
(200~240V, 50/60Hz, AC) in accordance with power standards in your
country;
2. Connect the instrument to AC supply via power cord supplied by
SIGLENT;
3. The power indicator light on the front panel will glitter slowly;
4. Press the power key on the front panel, the instrument will be started a few
seconds later.
6 SDM3045X Digital Multimeter
User Interface
Main Display
Function
Reading
Display
Measurement Range
Trigger Mode
Unit
Softkey Menu
Vice-display
Main
Display
Function
Main
Display
LAN State Icon
Control Mode
Dual Display Icon
Single Display：
SIGLENT
Dual-Display：
Diagram 1- 6 Single Display Interface
Diagram 1-7 User Interface
SDM3045X Digital Multimeter 7
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To Measure DC Voltage / Current
To Measure AC Voltage / Current
To Measure 2-Wire / 4-Wire Resistance
To Measure Frequency / Capacitance
To Test Continuity / Diode
To Measure Temperature / Optional Multiple Scan Card
To use Dual-display Function or Set Up the Utility
Acquire Function or Help System
Math Function or Display Function
Run / Stop
Single Trigger / Hold Measurement Function
To Switch Functions or Return to Local Menu
To Select Measurement Range
Chapter 2 Function and Operation
8 SDM3045X Digital Multimeter
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To switch modes
To Select Measurement Range
The Multimeter has two kinds of modes of selecting measurement range:
“Auto” and “Manual”. It can select appropriate range according to the signals
input in Auto mode, which is very convenient for users. While in Manual mode,
you can obtain higher reading precision. Range selection keys are on the right
side of the front panel as the following diagram.
To increase range
To decrease range
Diagram 2- 1 Range Selection Keys
Method 1: By Function keys on the Front Panel
Auto Range: Press to switch between Auto Range and Manual Range.
Manual Range: Press to increase range and press to decrease
range.
Method 2: By softkeys on the measurement main interface as Diagram 2-2.
Auto Range: Press【Auto】to choose Auto Range, meanwhile Manual Range is
forbidden.
Manual Range: Press【600mV】、【6V】、【60V】、【600V】or【1000V】
to choose required range manually. Auto Range is forbidden at this moment.
SDM3045X Digital Multimeter 9
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Diagram 2- 2 Range selection menus
Explanations:
1. When the input signal is beyond the current scope of the measurement
range, the Multimeter will show “overload”.
2. Range option will turn back to default setting “Auto” after restarting and
remote reset.
3. Users are suggested to select “Auto” range so as to protect the instrument
against damage and get exact data as much as possible when it‟s hard to
predict the range of measurement.
4. For Dual-display Function, the measurement range of vice display is auto.
5. The range is fixed during testing the Continuity. The range of
continuity is selected as 2kΩ.
10 SDM3045X Digital Multimeter
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To Select Measurement Speed
The instrument provides three types of measurement rate: 5 reading/s, 50
reading/s and 150 reading/s. 5 reading/s belongs to “Slow” rate; 50 reading/s
belongs to “Middle” rate; 150 reading/s belongs to “Fast” rate.
Measurement speed can be controlled by softkey menu. Press 【Speed】 and
then press 【Slow】,【Middle】or【Fast】to choose measurement speed.
Diagram 2- 3 Range selection menu
Explanations:
1. Three reading rates are available for DCV, ACV, DCI, ACI and 2-Wire/
4-Wire Resistance: “Slow”, “Middle” and “Fast”.
2. There is a linkage for both reading resolution and reading (measurement)
rate.
3. 5 reading/s and 50 reading/s belongs to 4.5 digit resolution.
4. 150 reading/s belong to 3.5 digit resolution.
5. The reading resolution of Temperature is fixed at 4.5 digit and “Fast”
respectively.
6. The reading resolutions and measurement rates of both Diode and
Continuity are fixed at 4.5 digit and “Fast” respectively.
7. The reading resolution and measurement rate of the Frequency function
are fixed 4.5 digit and “Slow” respectively.
8. The reading resolution and measurement rate of the Capacitance function
are fixed at 3.5 digit and “Slow” respectively.
SDM3045X Digital Multimeter 11
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Basic Measurement Functions
SDM3045X Digital Multimeters have following basic functions:
To Measure DC Voltage
To Measure AC Voltage
To Measure DC Current
To Measure AC Current
To Measure 2/4-Wire Resistance
To Measure Capacitance
To Test Continuity
To Test Diode
To Measure Frequency or Period
To Measure Temperature
12 SDM3045X Digital Multimeter
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To Measure DC Voltage
The Multimeter enables to measure DC Voltage up to 1000V. The method to
connect and measure DC Voltage will be introduced in details as the following
steps.
Operating Steps:
1. Press on the front panel to enter the DC Voltage measurement
interface, as shown in Diagram 2- 4.
Diagram 2- 4 DC Voltage Measurement Interface
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as the following diagram.
Diagram 2- 5 Sketch Map for Measuring DC Voltage
SDM3045X Digital Multimeter 13
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Ranges*
600mV、6V、60V、600V、1000V
Input Protection
1000V on all ranges（HI terminal）
Configurable
Range, Speed, DC input impedance, Rel
3. Choose a proper voltage range according to the measured circuit.
Table 2- 1 Measurement Characteristics of DC Voltage
NOTE*:
All the ranges enable to obtain 10% value higher than original except
1000V. Besides, both Manual and Auto are available for setting every
range.
When inputting range is higher than 1000V at 1000V Level, “overload” will
be shown on the screen.
1000V input protection exists in every range.
4. Set the DC input impedance (Only for Manual 600mV range).
Press 【Input Z】to set the DC resistance as “10M” (default value) or
“>10G”. Users can execute DC voltage measurement directly without
modifying this parameter which has been setup before leaving factory.
5. Set relative value (Optional operation).
Press 【Rel】 to open or close Relative math function. When it is opened,
the reading displayed is a value which comes from the result of actual
measurement value subtracts the relative value that has been set. The
default relative value is the measurement value when the function is
opened.(Please refer to “ Math Functions” in Chapter 2 to know about the
details.)
6. Read measurement result.
Select required measurement rate (reading rate) by pressing 【Speed】
and read the measurement result.
7. View history data.
There are four types of way to view historical data: “Number”, “Bar
Meter” ”Trend Chart” and “Histogram”.
14 SDM3045X Digital Multimeter
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To Measure DC Current
The Multimeter enables to measure DC Current up to 10A. The method to
connect and measure DC Current will be introduced in details as the following
steps.
Operating Steps:
1. Press and on the front panel to enter the DC Current
measurement interface, as shown in Diagram 2- 6.
Diagram 2- 6 DC Voltage Measurement Interface
2. Connect the red lead to terminal Input-I and black lead to terminal
Input-LO as the following diagram.
Diagram 2- 7 Sketch Map for Measuring DC Current
SDM3045X Digital Multimeter 15
SIGLENT
Ranges*
600μ A、6mA、60mA、600mA、6A、10A
Input Protection
10A(back panel), 12A(inside the instrument)
Configurable
Range, Speed, Rel
3. Choose a proper current range according to the measured circuit.
Table 2- 2 Measurement Characteristics of DC Current
NOTE*:
All the ranges enable to obtain 10% value higher than original except 10A.
Besides, both Manual and Auto are available for setting every range.
4. Set relative value (Optional operation).
Press 【Rel】 to open or close Relative math function. When it is opened,
the reading displayed is a value which comes from the result of actual
measurement value subtracts the relative value that has been set. The
default relative value is the measurement value when the function is
opened. (Please refer to “ Math Functions” in Chapter 2 to know about the
details.)
5. Read measurement result.
Select required measurement rate (reading rate) by pressing【Speed】and
read the measurement result.
6. View history data.
There are four types of way to view historical data: “Number”, “Bar
Meter” ”Trend Chart” and “Histogram”.
16 SDM3045X Digital Multimeter
SIGLENT
To Measure AC Voltage
The Multimeter enables to measure AC Voltage up to 750V. The method to
connect and measure DC Voltage will be introduced in details as the following
steps.
Operating Steps:
1. Press on the front panel to enter the AC Voltage measurement
interface, as shown in Diagram 2- 8.
Diagram 2- 8 AC Voltage Measurement Interface
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as the following diagram.
Diagram 2- 9 Sketch Map for Measuring AC Voltage
3. Choose a proper voltage range according to the measured circuit.
SDM3045X Digital Multimeter 17
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Ranges*
600mV、6V、60V、600V、750V
Input Protection
750Vrms on all ranges（HI terminal）
Configurable
Range, Speed, Rel
Table 2- 3 Measurement Characteristics of AC Voltage
NOTE*:
All the ranges enable to obtain 10% value higher than original except
750V. Besides, both Manual and Auto are available for setting every
range.
When inputting range is higher than 750V at 750V Level, “overload” will be
shown on the screen.
750V input protection exists in every range.
4. Set relative value (Optional operation).
Press 【Rel】 to open or close Relative math function. When it is opened,
the reading displayed is a value which comes from the result of actual
measurement value subtracts the relative value that has been set. The
default relative value is the measurement value when the function is
opened. (Please refer to “ Math Functions” in Chapter 2 to know about the
details.)
5. Read measurement result.
Select required measurement rate (reading rate) by pressing 【Speed】and
read the measurement result. If you press and then press
and to get the frequency value measured from input AC signal.
Diagram 2- 10 Dual-display
6. View history data.
There are four types of way to view historical data: “Number”, “Bar
Meter” ”Trend Chart” and “Histogram”.
18 SDM3045X Digital Multimeter
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To Measure AC Current
The Multimeter enables to measure AC Current up to 10A. The method to
connect and measure AC Current will be introduced in details as the following
steps.
Operating Steps:
1. Press and on the front panel to enter the AC Current
measurement interface, as shown in Diagram 2- 11.
Diagram 2- 11 AC Voltage Measurement Interface
2. Connect the red lead to terminal Input-I and black lead to terminal
Input-LO as the following diagram.
Diagram 2- 12 Sketch Map for Measuring AC Current
SDM3045X Digital Multimeter 19
SIGLENT
Ranges*
60mA、600mA、6A、10A
Input Protection
10A(back panel), 250V(fuse), 12A(inside the
instrument)
Configurable
Range, Speed, Rel
3. Choose a proper current range according to the measured circuit.
Table 2- 4 Measurement Characteristics of AC Current
NOTE*:
All the ranges enable to obtain 10% value higher than original except 10A.
Besides, both Manual and Auto are available for setting every range.
4. Set relative value (Optional operation).
Press 【Rel】 to open or close Relative math function. When it is opened,
the reading displayed is a value which comes from the result of actual
measurement value subtracts the relative value that has been set. The
default relative value is the measurement value when the function is
opened. (Please refer to “ Math Functions” in Chapter 2 to know about the
details.)
5. Read measurement result.
Select required measurement rate (reading rate) by pressing 【Speed】
and read the measurement result.
6. View history data.
There are four types of way to view historical data: “Number”, “Bar
Meter” ”Trend Chart” and “Histogram”.
20 SDM3045X Digital Multimeter
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To Measure 2-Wire/4-Wire Resistance
The Multimeter enables to measure 2-Wire Resistance and 4-Wire Resistance.
The method to connect and measure 2-Wire/4-Wire Resistance will be
introduced in details separately.
2-Wire Resistance
Operating Steps:
1. Press on the front panel to enter the 2-Wire Resistance
measurement interface, as shown in Diagram 2- 13.
Diagram 2- 13 2-Wire Resistance Measurement Interface
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as the following diagram.
Diagram 2- 14 Sketch Map for Measuring 2-Wire Resistance
SDM3045X Digital Multimeter 21
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Ranges*
600Ω、6kΩ、60kΩ、600kΩ、6MΩ、10MΩ、100MΩ
Open-circuit Voltage
<8V
Input Protection
1000V on every range (HI terminal)
Configurable
Range, Speed, Rel
NOTE:
You are suggested to make use of Relative function when measuring small
resistance to reduce or escape impedance error from Test leads.
3. Choose a proper resistance range according to the scope.
Table 2- 5 Measurement Characteristics of 2-Wire Resistance
NOTE*:
All the ranges enable to obtain 10% value higher than original. Besides, both
Manual and Auto are available for setting every range.
4. Set relative value (Optional operation).
Press 【Rel】 to open or close Relative math function. When it is opened,
the reading displayed is a value which comes from the result of actual
measurement value subtracts the relative value that has been set. The
default relative value is the measurement value when the function is
opened. (Please refer to “ Math Functions” in Chapter 2 to know about the
details.)
5. Read measurement result.
Select required measurement rate (reading rate) by pressing 【Speed】
and read the measurement result.
6. View history data.
There are four types of way to view historical data: “Number”, “Bar
Meter” ”Trend Chart” and “Histogram”.
22 SDM3045X Digital Multimeter
SIGLENT
4-Wire Resistance
Operating Steps:
1. Press and on the front panel to enter the 4-Wire
Resistance measurement interface, as shown in Diagram 2- 14.
Diagram 2- 15 4-Wire Resistance Measurement Interface
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as the following diagram.
Diagram 2- 16 Sketch Map for Measuring 4-Wire Resistance
SDM3045X Digital Multimeter 23
SIGLENT
Ranges*
200Ω、2kΩ、20kΩ、200kΩ、2MΩ、10MΩ、100MΩ
Open-circuit Voltage
<8V
Input Protection
(1)
1000V on each range (HI terminal)
(2)
200V on each range (HI Sense, LO Sense)
Configurable Parameters
Range, Speed, Rel
NOTE：
Please do not put the terminals of the resistance on the conductive plane or
in your hand to avoid error. The bigger of the resistance, the more affection it
will be brought.
3. Choose a proper resistance range according to the scope.
Table 2- 6 Measurement Characteristics of 4-Wire Resistance
NOTE*:
All the ranges enable to obtain 20% value higher than original. Besides, both
Manual and Auto are available for setting every range.
4. Set relative value (Optional operation).
Press 【Rel】 to open or close Relative math function. When it is opened, the
reading displayed is a value which comes from the result of actual
measurement value subtracts the relative value that has been set. The default
relative value is the measurement value when the function is opened.
(Please refer to “ Math Functions” in Chapter 2 to know about the details.)
5. Read measurement result.
Select required measurement rate (reading rate) by pressing 【Speed】
and read the measurement result.
6. View history data.
There are four types of way to view historical data: “Number”, “Bar
Meter” ”Trend Chart” and “Histogram”.
24 SDM3045X Digital Multimeter
SIGLENT
To Measure Capacitance
The Multimeter enables to measure Capacitance up to 1000μF. The method to
connect and measure Capacitance will be introduced in details as the following
steps.
Operating Steps:
1. Press on the front panel to enter the Capacitance measurement
interface, as shown in Diagram 2- 16.
Diagram 2- 17 Capacitance Measurement Interface
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as the following diagram.
Diagram 2- 18 Sketch Map for Measuring Capacitance
SDM3045X Digital Multimeter 25
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Ranges*
2nF、20nF、200nF、2μF、200μF、200μF、10000μF
Input Protection
1000V on all ranges (HI terminal)
Configurable Parameters
Range, Rel
NOTE：
Before measuring the electrolytic capacitance, you should make the two legs
of the electrolytic capacitance short circuit and let it be discharged.
3. Choose a proper capacitance range according to the measured circuit.
Table 2- 7 Measurement Characteristics of Capacitance
NOTE*:
All the ranges enable to obtain 20% value higher than original. Besides, both
Manual and Auto are available for setting every range.
4. Set relative value (Optional operation).
Press 【Rel】 to open or close Relative math function. When it is opened,
the reading displayed is a value which comes from the result of actual
measurement value subtracts the relative value that has been set. The
default relative value is the measurement value when the function is
opened. (Please refer to “ Math Functions” in Chapter 2 to know about the
details.)
5. Read measurement result.
Capacitance measurement is fixed at “Slow” rate. Therefore, you can‟t
adjust the reading rate when reading the result.
6. View history data.
There are four types of way to view historical data: “Number”, “Bar
Meter” ”Trend Chart” and “Histogram”.
26 SDM3045X Digital Multimeter
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To Measure Frequency or Period
The Frequency or Period of a signal could be obtained by Dual-display
Function during measuring its voltage or current or by the function button on
the front panel. The method to connect and measure Frequency or Period will
be introduced in details as the following steps.
To Measure Frequency
Operating Steps:
1. Press and on the front panel to enter the Frequency
measurement interface. The lower right corner of the screen shows the
unit of Frequency, as shown in Diagram 2- 17.
Diagram 2- 19 Frequency Measurement Interface
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as the following diagram.
Diagram 2- 20 Sketch Map for Measuring Frequency
SDM3045X Digital Multimeter 27
SIGLENT
Ranges
600mV,6V,60V, 600V, 750V
Measurement Range
20Hz ~ 500kHz
Input Protection
750Vrms on all ranges (HI terminal)
Configurable
Range, Rel
3. Choose a proper voltage range according to the measured circuit.
Table 2- 8 Measurement Characteristics of Frequency
4. Set relative value (Optional operation).
Press 【Rel】 to open or close Relative math function. When it is opened,
the reading displayed is a value which comes from the result of actual
measurement value subtracts the relative value that has been set. The
default relative value is the measurement value when the function is
opened. (Please refer to “ Math Functions” in Chapter 2 to know about the
details.)
5. Read measurement result.
Frequency measurement is fixed at “Slow” rate. Therefore, you can‟t adjust
the reading rate while reading the result.
6. View history data.
There are four types of way to view historical data: “Number”, “Bar
Meter” ”Trend Chart” and “Histogram”.
28 SDM3045X Digital Multimeter
SIGLENT
Ranges
200mV, 2V, 20V, 200V, 750V
Measurement Range
2μs – 50ms
Input Protection
750Vrms on all ranges (HI terminal)
Configurable
Range, Rel
To Measure Period
Operating Steps:
1. Press and on the front panel and select 【Period】to enter
the Period measurement interface. The lower right corner of the screen
shows the unit of Period, as shown in Diagram 2- 21.
Diagram 2- 21 Period Measurement Interface
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as the following diagram.
Diagram 2- 22 Sketch Map for Measuring Period
3. Choose a proper voltage range according to the measured circuit.
Table 2- 9 Measurement Characteristics of Period
SDM3045X Digital Multimeter 29
SIGLENT
4. Set relative value (Optional operation).
Press 【Rel】 to open or close Relative math function. When it is opened,
the reading displayed is a value which comes from the result of actual
measurement value subtracts the relative value that has been set. The
default relative value is the measurement value when the function is
opened. (Please refer to “ Math Functions” in Chapter 2 to know about the
details.)
5. Read measurement result.
Period measurement is fixed at “Slow” rate. Therefore, you can‟t adjust the
reading rate while reading the result.
6. View history data.
There are four types of way to view historical data: “Number”, “Bar
Meter” ”Trend Chart” and “Histogram”.
30 SDM3045X Digital Multimeter
SIGLENT
To Test Continuity
Continuity test uses double leads method to measure the resistance of the
measured circuit via about 0.5mA current. When the measured resistance in
circuit is lower than the selected one, it is considered being connected with
instrument. The method to test Continuity will be introduced in details as the
following steps.
Operating Steps:
1. Press on the front panel to enter the Continuity test interface, as
shown in Diagram 2- 23.
Diagram 2- 23 Continuity Measurement Interface
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as the following diagram.
Diagram 2- 24 Sketch Map for Testing Continuity
3. Set the Short-circuit resistance.
SDM3045X Digital Multimeter 31
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Test Current
1mA
Ranges*
Fixed at 2kΩ
Open-circuit Voltage
<8V
Input Protection
1000V on all ranges (HI terminal)
Beep Condition
0≤R
testing
≤Short-circuit impedance
0Ω≤Short-circuit impedance≤2kΩ
NOTE:
Before testing continuity, please cut off the power and discharge all the
high-voltage containers to avoid damages to the Multimeter.
The default value is set as 50Ω before leaving factory. The value can be
changed by using direction keys. You also can execute the Continuity
measurement directly without modification.
Table 2- 10 Measurement Characteristics of Continuity
4. Set the Beeper function.
Press 【Beeper】to turn on or off the Beeper. If the circuit is continuous, the
instrument will beep continually when the Beeper is turned on.
5. Search for the test point and read measurement result.
32 SDM3045X Digital Multimeter
SIGLENT
To Test Diode
If input voltage is under Threshold the Beeper will beep persistently. The
method to test Diode will be introduced in details as the following steps.
Operating Steps:
1. Press and on the front panel to enter the Diode test
interface, as shown in Diagram 2- 25.
Diagram 2- 25 Diode Test Interface
2. Connect red lead to both terminal Input-HI and anode of the Diode and
black lead to both terminal Input-LO and cathode of the Diode as the
following diagram.
Diagram 2- 26 Sketch Map for testing Diode
3. Set the Threshold.
The default value is set as 2V before leaving factory. The value can be
changed by using direction keys. You also can execute the Diode
measurement directly without modification.
SDM3045X Digital Multimeter 33
SIGLENT
Test Current
1mA
Ranges*
0~4V
Open-circuit Voltage
<8V
Input Protection
1000V (HI terminal)
Beep Condition
V
measured
≤Threshold
Note:
Before testing diode, please cut off the power and discharge all the
high-voltage containers to avoid damages to the Multimeter.
Table 2- 11 Characteristics of Checking Diodes
4. Set the Beeper function.
Press 【Beeper】to turn on or off the Beeper. If the circuit is continuous, the
instrument will beep persistently when the Beeper is turned on.
5. Read measurement result.
6. Reverse the probes and measure the voltage in the diode once more.
Evaluate the diode according to the following rules:
If the Multimeter shows “overload” when in reverse bias model, it indicates
that the diode is normal.
If the Multimeter shows voltage about 0V and the instrument beeps
persistently when in forward and reverse bias model, it indicates that the
diode is short.
If the Multimeter shows “overload” when in forward and reverse model, it
indicates that the diode is open.
34 SDM3045X Digital Multimeter
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To Measure Temperature
The Multimeter supports for two types of temperature sensor: TC and RTD.
The method to connect and measure Temperature will be introduced in details
as the following steps.
Operating Steps:
1. Press on the front panel to enter the Temperature measurement
interface, as shown in Diagram 2- 27.
Diagram 2- 27 Temperature Measurement Interface
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as the following diagram.
Diagram 2- 28 Sketch Map for Measuring Temperature
SDM3045X Digital Multimeter 35
SIGLENT
3. Press 【Load】and use direction keys to select the required file. Then
press 【Read】to recall an existing configuration file.
Diagram 2- 29 Load a Configuration File
4. Press 【Define】to view the configuration, as shown in the following
diagram:
Diagram 2- 30 Configuration of the Sensor
5. Press 【Display】 to choose a display mode. The Multimeter supports
three display modes: Temperature Value, Measured Value and All.
Diagram 2- 31 Choose Display Mode of Temperature Measurement
36 SDM3045X Digital Multimeter
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Press 【All】, the measured value will be shown on the Vice display and
the corresponding value will be shown on the Main display at the same
time, which is convenient for users to observe temperature and voltage
values ( or resistance value).
Diagram 2- 32 Show Temperature And Voltage Values
6. Press 【Units】to choose the unit of temperature. The Multimeter supports
three units: °C , °F, K.
Diagram 2- 33 Unit Selection Interface
7. Set relative value (Optional operation).
Press 【Rel】 to open or close Relative math function. When it is opened,
the reading displayed is a value which comes from the result of actual
measurement value subtracts the relative value that has been set. The
default relative value is the measurement value when the function is
opened. (Please refer to “ Math Functions” in Chapter 2 to know about the
details.)
8. Read measurement result.
Temperature measurement is fixed at “Fast” rate. Therefore, you can‟t
adjust the reading rate when reading the result.
SDM3045X Digital Multimeter 37
SIGLENT
9. View history data.
There are four types of way to view historical data: “Number”, “Bar
Meter” ”Trend Chart” and “Histogram”.
38 SDM3045X Digital Multimeter
SIGLENT
DC input impedance selection:
While the DC input impedance is selected as 10MΩ, the input
impedance of all measurement range is 10MΩ;
While the DC input impedance is selected to 10GΩ, the input
impedance for 600mV is 10GΩ; for 2V, 20V, 200V and 1000V
measurement range is kept at 10MΩ.
The default value of DC input impedance is 10MΩ; settings of DC input
impedance are stored in the nonvolatile memory.
Measurement Parameters
The parameters have been configured before the Multimeter leaving factory.
Users can either measure directly or modify them to meet your own
requirements.
DC Input Impedance
DC input impedance is only applicable for DC voltage measurement. When DC
Voltage function is selected, press【Range】 and select 【600mV】to show the
menu【Input Z】, as the following diagram shows.
Diagram 2- 34 Choose DC Input Impedance
The options of input impedance for DC voltage measurements are 10MΩ and
10GΩ. 10MΩ impedance is general for the Multimeter, but for 600mV manual
ranges, 10GΩ should be chosen for better result. The current selection will be
saved in nonvolatile memory.
SDM3045X Digital Multimeter 39
SIGLENT
Short-circuit Resistance:
The range of short-circuit resistance is 0Ω~2000Ω. The default value is
50Ω.
The value of short-circuit resistance is stored in the nonvolatile memory
and the resistance remains unchanged after the power is off.
Short-circuit Resistance
Set up the short-circuit resistance value in the short-circuit test menu. When
the measured resistance is lower than the short-circuit resistance, the circuit is
considered as connected, and the beeper sounds (if sound is turned on). The
short-circuit resistance is only applicable to the continuity test.
Operating Steps:
1. When Continuity function is selected, press【Threshold】to enter interface
as the following diagram.
Diagram 2- 35 Set Up the Short-circuit Resistance
2. Use direction keys to change the parameter values.
Press left and right directional keys to choose different digits. Each press
for the Left key, former number will be selected, vice versa. Press up and
down keys to change the current digit value. Each press for the up key,
value will be increased 1, vice versa.
40 SDM3045X Digital Multimeter
SIGLENT
Main Display Function
DCV
DCI
ACV
ACI
FREQ
PERIOD
2WR
4WR
Cap
Vice
Display
Function
DCV
DCI
ACV
ACI
FREQ
PERIOD
2WR
4WR
Cap
Dual-display Function
Dual-display function is used to improve test and measurement functions.
Press to open Dual-display function and the upper right corner will
show “Dual”. By this time, press a function key if this function can be used as
the vice display, it will be displayed in the Vice Display. The Main Display will
display the function that is selected before the Dual-display function is turned
on. All the available combinations are listed in table 2-12.
Table 2- 12 Available Main/Vice Function Combinations (shade is available)
Explanations:
1. If the same measurement function is used in both Main and Vice Display.
The readings in both of the display will update at the same time.
If math function (dBm, dB) is used in Main Display, when opening Vice
Display, math operation will be closed automatically and Vice Display will
show the same measurement result as Main Display.
If math function (Statistics, Limits, Relative) is used in Main Display, when
opening Vice Display, the result will still be shown in Main Display and
Vice Display will show the same measurement result as Main Display.
2. If different measurement functions are used in both Main and Vice Display.
The readings in both of the display will update alternately.
If math function (dBm, dB) is used in Main Display, when opening Vice
Display, math operation will be closed automatically and Vice Display will
SDM3045X Digital Multimeter 41
SIGLENT
show the second selected function normally.
If math function (Statistics, Limits, Relative) is used in Main Display, when
opening Vice Display, the result will still be shown in Main Display and
Vice Display will show the second selected function normally.
3. If Temperature function is used in Main Display, set the display mode
( →【 Display】→【All】). Then the result (corresponding value) will
be shown in Main Display and the current measurement value is shown in
Vice Display.
4. Auto Range is adopted by Vice Display. If the same measurement function
is used in both the display, so does the range.
5. Measured data in Vice Display cannot be saved into “History”.
42 SDM3045X Digital Multimeter
SIGLENT
Function Menu
Description
Store/Recall
Store or recall setting files.
Manage File
Create a new file, copy, rename or delete a file.
I/O Config
Set up LAN and GPIB parameters.
Test/Admin
Provide board test and firmware update function.
System Setup
Set up system information configuration.
Utility Function
The Utility function enables users to set up system parameters, interface
parameters of the multimeters.
Press and to enter the operating menu of Utility function, as
the following diagram shows.
Diagram 2- 36 Utility Function Configuration Interface
Table 2- 13 Utility Function Menu Description
SDM3045X Digital Multimeter 43
SIGLENT
Store and Recall
The Store/Recall function enables users to store and recall the instrument
parameters and data files in the local storage as well as in USB storage.
Operating Steps:
1. After entering into the function menu of Utility, press 【Store/Recall】to
enter the interface as shown in diagram 2-38.
Diagram 2- 37 Store and Recall Interface
2. Press【Store Settings】to enter the following interface.
Diagram 2- 38 Store Settings Interface
44 SDM3045X Digital Multimeter
SIGLENT
Function
Menu
Settings
Description
Browse
Choose the location that file will be saved.
File
Name
Input a file name.
Type
.xml / .csv
Choose the type that the file is saved.
Store
MS Data
Save the file as input file name to the current
selected location.
Done
Save all changes and return to the higher level
menu.
Table 2- 14 Storage Function Menu Description
3. Press【Recall Settings】to enter the following interface. Use direction keys
to choose storage path and location, and press【Select】to recall the
corresponding file.
Diagram 2- 39 Recall Function Interface
4. Press【Power on】to set the Power On state of the instrument.
You can choose【Last】 or 【Factory Default】as the initial state when the
instrument is turned on.
The configuration is effective when you restart the Multimeter.
DC Voltage is always the selected function when the instrument is turned
on even if you have selected【Last】 or 【Factory Default】as the Power
On state.
5. Press【Set to Defaults】to select “Factory Default” as the Power On state.
SDM3045X Digital Multimeter 45
SIGLENT
Manage File
The Manage File function enables users to create a new folder and save, copy,
rename or delete files in the local storage as well as in USB storage.
Operating Steps:
1. After entering into the function menu of Utility, press【Manage File】to
enter the interface as shown in diagram 2-41.
Diagram 2- 40 Manage File Interface
2. Choose the file location.
Press【Browse】and use direction keys to select the corresponding file.
3. Press【File Name】to enter the following interface.
Diagram 2- 41 Input File Name
46 SDM3045X Digital Multimeter
SIGLENT
Function
Menu
Description
Folder
Press【Create Folder】to create a new folder.
Capture
Display
Press【Save Screen】to save current captured screen picture
as standard BMP format.
Copy
Press【Perform Copy】to copy the selected file.
Rename
Press【Perform Rename】to rename the selected file.
Delete
Press【Perform Delete】to delete the selected file.
Done
Save all changes and return to the higher level menu.
The method of inputting file name:
Press direction keys to select a desired char in the input area.
Press “OK” key on the front panel to input selected char in the input area.
Press【Clear All】to clear all input chars.
Press【Delete Char】to delete the letter on which the cursor taking place.
Press【Previous Char】to move the cursor in the file name area to the
previous char.
Press【Next Char】to move the cursor in the file name area to the next char.
Press【Done】to save the current file and return to the higher level menu.
Press【Cancel】to cancel the current operation and return to the higher
level menu.
4. Press【Action】and select【Folder】, 【Capture Display】, 【Copy】,
【Rename】or【Delete】to do the corresponding operation.
Table 2- 15 Action Settings
SDM3045X Digital Multimeter 47
SIGLENT
Function
Menu
Description
IP Address
Set up IP address and the default setting is 10.11.11.104.
I/O Configuration
Press【I/O Config】to enter the following interface and set up the parameters.
Diagram 2- 42 I/O Configuration Interface
LAN Settings
The Multimeter enables users to operate instrument remotely by LAN
interface and store or recall internet settings. You can look over current LAN
settings and set up IP address and subnet mask.
After entering into the function menu of Utility, press 【I/O Config】. Select【On】
→【LAN Settings】→【Modify Settings】to enter the following interface.
Diagram 2- 43 LAN Settings Interface
Table 2- 16 LAN Settings
48 SDM3045X Digital Multimeter
SIGLENT
Subnet
Mask
Set up subnet mask and the default setting is 255.0.0.0.
Gateway
Set up gateway and the default setting is 192.168.0.1
Cancel
Cancel current operation and return to the higher level menu.
Done
Save all changes and return to the higher level menu.
GPIB Settings
Each device on the GPIB (IEEE–488) interface must have a unique address.
The default address is 18 when the instrument is leaving the factory. The
address of Multimeter can be any integral value between 1 and 30.
Operating Steps:
1. After entering into the function menu of I/O configuration, press
【GPIB Settings】to enter the interface shown in diagram 2-45.
Diagram 2- 44 GPIB Settings
2. Users can change the value of GPIB address by direction keys.
3. Press【Select】to set the input value as GPIB address and return to the
higher level menu.
SDM3045X Digital Multimeter 49
SIGLENT
Function Menu
Description
Key
Test the instrument‟s keys.
LCD
Test the instrument‟s LCD screen.
Beeper
Test the instrument‟s beeper.
Chip
Test the instrument‟s chips.
Done
Return the higher level menu.
Board Test
SDM3045X provides self-test functions, including Key Test, LCD Test,
Beeper Test and Chip Test.
Operating Steps:
1. Press and , then choose【Test/Admin】→【Board Test】
to enter the following interface.
Diagram 2- 45 Board Test Interface
Table 2- 17 Board Test Function Description
2. Test the keys.
Select【Key】to enter the key test interface, as the Diagram 2-47 shows. The
on-screen lathy rectangle shapes represent the keys on the front panel. Test
all keys and knobs and you should also verify that all the backlit buttons
illuminate correctly.
50 SDM3045X Digital Multimeter
SIGLENT
NOTE:
Before you operate, the shapes on the screen display blue color.
The corresponding area of tested buttons or knobs would display green
color.
Press【Done】to exit the test.
NOTE:
Press【Change】to change the color of the screen. There are three
colors: red, blue and green.
Press【Done】to exit the test.
Diagram 2- 46 Key Test Interface
3. Test the LCD screen.
Select【LCD】to enter the screen test interface, the screen shows the
message:” Press „Change‟ to change Press „Done‟ to exit“. Press【Change】
to start the test and observe if the screen has severe color or other display
error. As the Diagram 2-48 shows.
Diagram 2- 47 LCD Test Interface
4. Test the beeper.
SDM3045X Digital Multimeter 51
SIGLENT
NOTE:
If the test is passed, the corresponding result shows “pass”.
If the test is failed, the corresponding result shows “fail”.
Press 【Beeper】to test the beeper. Under regular circumstance, press
【Beeper】 one time and the instrument will beep one time.
5. Test the chips.
Press【Chip】→【Start】to enter chip test interface, as Diagram 2-49 shows.
Diagram 2- 48 Chip Test Interface
6. Press【Done】to exit the board test.
52 SDM3045X Digital Multimeter
SIGLENT
Function Menu
Description
Language
Select the display interface language.
Firmware Update
Update software version,
Screen
Set up the screen protection function.
System Info
View system information.
Done
Return to the higher level menu.
System Setup
Press and , then select【System Setup】to enter the following
interface.
Diagram 2- 49 System Setup Interface
Table 2- 18 System Settings Menu Description
1. Select language.
The Multimeter supports two kinds of languages, English and Chinese. Press
【Language】to enter the following interface.
Diagram 2- 50 Choose Language
SDM3045X Digital Multimeter 53
SIGLENT
2. Set up the time of screen protection.
Press【Screen】to set screen protection as 1 Min, 5 Mins, 15 Mins, 30 Mins,
1 Hour, 2 Hours or 5 Hours according to different demands. Activate the
screen saver program and screen saver will be on if no action is taken within
the time that you have selected. Press any button the resume.
3. View system information.
Press【System Info】to view system information, including startup times,
software version, hardware version, production ID and serial number, as
shown in the following diagram.
Diagram 2- 51 System Information
54 SDM3045X Digital Multimeter
SIGLENT
NOTE:
Don‟t cut off the power during the instrument is updating
Firmware Update
The software of the Multimeter can be updated directly via USB flash drive,
updating current software version to desired software version.
Operating Steps:
1. Copy the update file to the USB flash drive.
2. Insert USB flash drive to USB host interface on the front panel of the
Multimeter.
3. Press → →【System Setup】→【Firmware Update】, then
press 【Browse】and select the update file. Next, press【Update】→【 Yes】
to start updating the system software.
4. After accomplishing update, the screen shows message:
” Firmware Update Done!” Then you can move the USB flash drive
away.
5. Restart the Multimeter and check the version information.
Press → →【System Setup】→【System Info】to check
if the software and hardware version after updating is in accordance with
the desired version. If not, the updating is failed and you need update
once more as the above steps.
6. After checking, press【Done】to exit the system information interface.
SDM3045X Digital Multimeter 55
SIGLENT
Function Menu
Description
Trg Src
Set the source of trigger.
Slope
Set the slope polarity of external trigger.
Delay
Set the delay.
Samples/Trigger
Set the number of samples or trigger.
VMC Out
Set the polarity of output pulse signal when sampling
signal is finished.
Acquire
Sampling is a process of acquiring and digitizing signal. The optional Trigger
methods of the Multimeter include Auto Trigger, Single Trigger and External
Trigger.
Press to enter the interface shown as the following diagram:
Diagram 2- 52 Acquire Interface
Table 2- 19 Function Menu of triggering parameter
56 SDM3045X Digital Multimeter
SIGLENT
Sample Count
Sample Count indicates the count of point sampled while the
Multimeter getting a signal of Single Trigger.
The range of sampling point should be between 1 and 599999999.
The default value of Sample Count is 1.
Auto Trigger
Auto Trigger parameters that need to be set up include delay, samples/
trigger and VMC out.
Operating Steps:
1. Press , then select 【Trg Src】→【Auto】or press on the front
panel directly to enable Auto Trigger.
2. Set the delay.
Delay is the waiting time after the trigger signal is sent out and before the
auquiring starts. Press 【Delay】to select Auto or Manual mode. When
choosing Manual mode，Left and Right keys are used to switch the
number of a numerical value, Up and Down keys are used to change the
selected value.
3. Set the number of samples or trigger.
Press 【Samples/Trigger】to set the sample count. Left and Right keys are
used to switch the number of a numerical value, Up and Down keys are
used to change the selected value.
4. Set the VMC Out.
The Multimeter output a pulse signal through the VM COMP interface on
the rear panel after sampling signal is finished
Press 【VMC Out】to choose Positive or Negative polarity.
SDM3045X Digital Multimeter 57
SIGLENT
Single Trigger
Single Trigger parameters that need to be set up include delay, samples
/trigger and VMC out.
Operating Steps:
1. Press , then select 【Trg Src】→【Single】or press on the
front panel directly to enable Single Trigger. See the diagram below.
Diagram 2- 53 Setting interface of Auto Trigger
2. Set the delay.
Press 【Delay】to select Auto or Manual mode.
3. Set the number of samples or trigger.
Press 【Samples/Trigger】to set sample count.
4. Set the VMC Out.
The Multimeter output a pulse signal through the VM COMP interface on
the rear panel after sampling signal is finished.
Press 【VMC Out】to choose Positive or Negative polarity.
58 SDM3045X Digital Multimeter
SIGLENT
External Trigger
The external trigger signal will be input via EXT TRIG interface on the rear
panel. External trigger parameters that need to be set up include delay,
samples /trigger, slope and VMC out.
Operating Steps:
1. Press , then select 【Trg Src】→【Ext】to enable External Trigger.
Diagram 2- 54 Setting interface of Ext Trigger
2. Set the polarity of slope.
Press 【Slope】to choose Positive or Negative polarity.
3. Set the delay.
Press 【Delay】to choose Auto or Manual mode.
4. Set the number of samples or trigger.
Press 【Samples/Trigger】to set sample count.
5. Set the VMC Out.
In External Trigger mode, the Multimeter could output a pulse signal
through the VM COMP interface on the rear panel after sampling signal is
finished.
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Function
Menu
Description
Up
Move up the cursor and select the help menu.
Down
Move down the cursor and select the help menu.
Select
Select the help information you want and read it.
Done
Return to the higher menu.
Help System
SDM3045X provides powerful built-in help system. You can recall help
information at any time during using the instrument. You also can get a
particularly help for every button on the front panel or menu softkey by using
the built-in help system. Or you can get help about familiar operations with
the help list.
Press and to enter the help list, as the following diagram
shows.
Diagram 2- 55 Help Menu
Table 2- 20 Help System Operating Menu
1. Basic Measure.
Get basic measurement types and methods to connect the leads in different
measurements.
2. Measuring Temperature.
Get the method to measure temperature.
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Explanation:
In the help menu interface, you also can move cursor and select the
corresponding menu by up and down direction keys and press ”OK” to
read the help information.
While reading help information, you also can look up and down the
information by up and down direction keys.
3. Measuring Capacitance.
Get the method to measure temperature.
4. Math Function.
Introduce how to use the math function while you are measuring.
5. Dual-display Function.
Get the method to use the dual-display function while you are measuring.
6. Saving and Recalling Information.
Introduce how to store and recall the data/parameter/ sensors files.
7. Optional Multiple Scan Card.
Get help about operating optional multiple scan cards.
8. The convention and Tips of Softkeys.
Get help about the convention and tips of softkeys.
9. Technical Support.
Get the method to obtain technical support.
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Math Function
The Multimeter provides five math functions: Statistics, Limits, dBm, dB and
Relative. Choose different math functions to meet different measurement
demands.
Press to show the operating menu of math functions on the screen, as
shown in the following diagram.
Diagram 2- 56 Math Function Menu of DC Voltage
Diagram 2- 57 Math Function Menu of AC Current
62 SDM3045X Digital Multimeter
Function
Menu
Settings
Description
Statistics
Reading statistic functions, including: max, min,
average, span, std dev and samples.
Limits
The Limits function performs Pass/Fail testing
according to the specified upper and lower limits.
dBm
The dBm is based on a calculation of power delivered
to a reference resistance, 0dBm = 1mW.
dB
The dB measurement is the difference between the
input signal and a stored relative value.
Rel Value
Value/Off
Turn on the relative value function and set up the
value. Or turn off the function.
Explanations:
Math function can only be applicable to the main display.
If measurement function is changed, all math functions will be
closed except Statistics.
Table 2- 21 Math Function Menu Description
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Function
Menu
Settings
Description
Statistics
Show/Hide
Show or hide the statistics function interface.
Min
Show the minimum statistics value of current
measurement.
Average
Show the average statistics value of current
measurement.
Max
Show the maximum statistics value of current
measurement.
Span
Show the span of current measurement.
Std dev
Show the std dev statistics value of current
measurement.
Samples
Show the maximum statistics value of current
measurement.
Clear
Readings
Clear all current readings and restart statistics.
Done
Return to the higher level menu.
Statistics
There are many kinds of reading statistic functions, including: Max, Min,
Average, Standard deviation and so on.
Press →【Statistics】→【Show】 to enter the interface shown in the
following diagram.
Diagram 2- 58 Statistics
Table 2- 22 Statistic Measurement Menu Function Description
64 SDM3045X Digital Multimeter
Statistics Function:
In statistic function, the first reading is usually set to the maximum or
minimum value. When getting more readings, current displaying value
is always the maximum/minimum reading among all the measured
values.
The maximum, minimum, average and reading quantities are stored in
volatile memory.
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Function
Menu
Settings
Description
Limits
On/Off
Turn on or turn off the Limits function.
Low
Set the desired lower limit.
Center
Set the desired center value
High
Set the desired upper limit.
Status
Show the status of limit test.
Low
Failures
Show the times that reading is lower than the limit.
High
Failures
Show the times that reading is higher than the limit.
Span
Set the desired span.
Beeper
On/Off
When the beeper is on, if the reading is lower or
higher than limits, the instrument will beep once.
Clear
Condition
Clear all current readings and restart to test.
Done
Save all changes and return to the higher level menu.
Limits
Limits function is available to prompt signals beyond ranges according to the
upper and lower parameters.
Press →【Limits】→【On】 to enter the interface shown in the following
diagram.
Diagram 2- 59 Limits
Table 2- 23 Limits Measurement Menu Function Description
66 SDM3045X Digital Multimeter
The range of Limits function:
The upper limit value should be always bigger than the lower limit
value.
The upper and lower values are stored in volatile memory. They will be
set to default values when the power is on.
1. How to Set Limits
Select 【High】,【Low】,【Center】or【Span】 and then switch to the needed
digit by Left or Right Direction keys and input numerical value by Up and Down
Direction keys.
2. Unit
The unit of Limits is decided by the current measurement function.
3. Over hint
When the reading is lower than the set lower limit, the color of main display
will switch black to red.
When the reading is higher than the set higher limit, the color of main
display will switch black to red.
When the reading is lower or higher than the set limits, the Beeper will
beep once. (The beeper is turned on.)
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Function
Menu
Settings
Description
dB/dBm
On/Off
Turn on or turn off dB or dBm function.
Function
dBm
Open dBm function and the lower right corner of the
main display show “dBm”.
Ref R
Set the parameter via direction keys: 50Ω ~ 8000Ω.
Done
Save all changes and return to the higher level menu.
dBm
The dBm function is logarithmic and based on a calculation of power delivered
to a reference resistance, relative to 1 mill watt. Besides，this function only
applies to AC voltage and DC voltage measurements.
Press →【dB/dBm】→【On】and select【Function dBm】to enter the
interface shown in the following diagram.
Diagram 2- 60 dBm Function Interface
Table 2- 24 dBm Measurement Function Menu Function Description
The computation method of the dBm:
When dBm function is turned on, the measured value of voltage is transformed
into dBm according to the following formula.
dBm = 10 x Log10 [(Reading2 / R
) / 0.001W]
REF
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Function
Menu
Settings
Description
dB/dBm
On/Off
Turn on or turn off dB or dBm function.
Function
dB
Open dB function and the lower right corner of the
main display show “dB”.
Ref R
Set the parameter via direction keys: 50Ω ~ 8000Ω.
dB Ref
Value
Set the referred value of dB.
Measure
Ref Value
Set the current dBm measurement value as referred
value.
Done
Save all changes and return to the higher level menu.
dB Ref value:
Input a value in dB setting interface by direction button, and then store it as
dB Ref value.
Settings of dB Ref value are stored in volatile memory.
dB
Each dB measurement is different between the input signal and a stored
relative value, with both values converted to dBm. The dB function applies to
AC voltage and DC voltage measurements only.
Press →【 dB/dBm On】and select【Function dB】to enter the interface
shown in the following diagram.
Diagram 2- 61 dB Function Interface
Table 2- 25 dB Measurement Function Menu Function Description
The computation method of the dB:
dB = 10 x Log10 [(Reading2 / R
R
expressed measuring the resistance value in the actual electric circuit.
REF
) / 0.001W] – (dB Ref value)
REF
Range of the dB Ref value: -200 dBm ~ +200 dBm. The default is 0 dBm.
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Function
Menu
Description
Value
Select current measurement value as preset value.
Off
Turn off the relative operation function.
Relative Value
Relative value is used for relative measurement. Actual measurement reading
is the depression between measurement value and preset value.
The Multimeter allows operating for the following parameters: DC Voltage, AC
Voltage, DC Current, AC Current, Resistance, Frequency, Period,
Capacitance and Temperature.
Press →【Rel Value】to enter the interface shown in the following
diagram.
Diagram 2- 62 Relative Operation
Table 2- 26 Rel Value Operation Function Menu
When Rel Value function is turned on, the result of relative measurement will
show on the screen.
Main display = Measurement value – Preset value
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Display Mode
The Multimeter supports four types of way to view measured data: “Number”,
“Bar Meter” ”Trend Chart” and “Histogram”.
Number
Press and to open the menu of display mode and press
【Display】to enter the following interface. “Number” is always the selected
mode when the Multimeter is turned on.
Diagram 2- 63 Number Display Mode
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Function Menu
Description
Low
Set the low value of horizontal scale.
High
Set the high value of horizontal scale.
Center
Set the center value of horizontal scale.
Span
Set the span of horizontal scale.
Done
Save all changes and return to the higher level menu.
Bar Meter
Operating Steps:
1. Press【Bar Meter】to enter Bar Meter display mode.
Diagram 2- 64 Bar Meter Display Mode
2. Press【Horizontal Scale】to choose the way to set the vertical scale as
Default , Manual mode or Limits (limit function is on).
Table 2- 27 To Set the Vertical Scale of Bar Meter manually
72 SDM3045X Digital Multimeter
Trend Chart
Function Menu
Description
Display
Trend
Currently selected display mode is Trend Chart.
Recent
All
Show recent or all readings.
Horizontal Scale
Choose the mode of Horizontal Scale.
Autoscale Once
Automatically set the horizontal scale once.
Clear Readings
Clear all current readings and restart statistics.
Operating Steps:
1. Press【Trend Chart】to enter Trend Chart display mode.
.
Diagram 2- 65 Trend Chart Display Mode
Table 2- 28 Trend Chart Display Mode
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2. Press【Horizontal Scale】to choose the way to set the horizontal scale as
Default , Auto , Manual or Limits ( Limit function is on) mode.
Press【Auto】and the Multimeter will set the vertical scale automatically.
Diagram 2- 66 Auto Vertical Scale
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Press【Manual】and you can set the vertical scale manually, as the following
diagram shows.
Diagram 2- 67 Manual Vertical Scale
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Histogram
Function
Menu
Settings
Description
Display
Histogram
Currently selected display mode is Histogram.
Binning
Set Binning as Auto or Manual mode.
Bin Set
Set the parameters of Bin.
Cumulative
On/Off
Turn on or off Cumulative function.
Clear
Readings
Clear all current readings and restart statistics.
Operating Steps:
1. Press【Histogram】to enter Histogram display mode.
Diagram 2- 68 Histogram Display Mode
Table 2- 29 Histogram Display Mode
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2. Press【Binning】to choose the way to set Binning as Auto or Manual mode.
When in Manual mode, press【Bin Settings】to enter the following interface.
Diagram 2- 69 Bin Set Interface
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Function
Menu
Settings
Description
Num.Bins
Set the number of Bins, 10, 20, 40, 100, 200 or 400
selected.
Low
Set the low value of horizontal scale.
High
Set the high value of horizontal scale.
Center
Set the center value of horizontal scale.
Span
Set the span of horizontal scale.
Outer Bins
On/Off
Show the bins beyond the scope or not.
Done
Save all changes and return to the higher level menu.
Table 2- 30 Bin Set
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Trigger
The Multimeter supports Trigger function. Press or on the front
panel to trigger the Multimeter by Auto or Single mode .Auto trigger is
considered as a default when the power is on.
Auto Trigger
Press on the front panel one time and Auto Trigger will be started to
capture continuous readings automatically. By the time, the black field of the
screen will show “● Auto Trigger”. Press again and the trigger is
stopped.
Single Trigger
Press on the front panel, Single Trigger will be started one time and
generate an effective reading. By the time, the black field of the screen will
show “● Single Trig”.
Explanation：
In Remote Mode, the black field just above the screen will show “● Immediate
Trig”. Press to switch back to the local mode and the Multimeter will
choose Auto Trigger automatically.
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Function
Menu
Settings
Description
Probe Hold
On/Off
Turn on or off Probe Hold function.
Beeper
On/Off
Turn on or off the Beeper.
Clear List
Clear all current readings and restart to statistics.
Hold Measurement Function
Hold Measurement function provides users with a stable reading on the
screen of the front panel. When the test leads are put away, the reading is
still held on the screen, which makes users can view measured history data.
Press and to open Hold measurement function interface, the
black field just above the screen will show “● Probe Hold”, as shown in the
following diagram.
Diagram 2- 70 Hold Measurement Function Interface
Table 2- 31 Hold Measurement Function
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Chapter 3 Application Examples
This chapter mainly introduces few application examples to help users
control and manipulate SDM3045X quickly.
Example 1: Reading Statistic Functions
Example 2: To Eliminate Leads Impedance
Example 3: dBm Measurement
Example 4: dB Measurement
Example 5: Limits Test
Example 6: To Use Hold Measurement Function
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Example 1: Reading Statistic Functions
Introduce how to realize the statistic function during measuring. When
continually measuring few readings, the Multimeter will update statistic values
constantly.
Operating Steps：
1. Press on the front panel to select AC Voltage measurement
function and choose a proper voltage range.
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as Diagram 2-9.
3. Set the Statistics function parameters.
Press →【Statistics】to turn on the statistics function.
4. Lead test leads into the circuit and start to measure. Statistics will update
with the increasement of samples, as the following diagram shows.
Diagram 3- 1 Statistics 1
80 SDM3045X Digital Multimeter
Diagram 3- 2 Statistics 2
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Example 2: To Eliminate Leads Impedance
Relative Operation could eliminate impedance errors from leads when
measuring smaller resistance.
Operating Steps:
1. Press on the front panel to select 2-Wire Resistance
measurement function.
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as Diagram 2-14.
3. Choose a proper resistance range according to the scope. The default is
Auto Range.
4. Lead impedance will be shown on the screen as follow after connecting
with two leads together.
Diagram 3- 3 Test Lead Impedance
5. Set parameters for Relative operation.
Press →【Rel Value】set relative value as current measured value.
Diagram 3- 4 Set Relative Value
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6. Besides, pressing【Rel】on the softkey menu could also open Relative
operation.
The Relative Operation has been turned on.
Diagram 3- 5 Lead Impedance after Operation
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Example 3: dBm Measurement
dBm is commonly used in audio signal measurement. The following will
introduce you how to measure dBm value.
Operating Steps：
1. Press on the front panel to select AC Voltage measurement
function and choose a proper voltage range.
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as Diagram 2-9.
3. Set the dBm parameters.
Press →【dB/dBm】 to turn on the dBm function and set the
selective value of dBm as a reference value within supposed circuit by
using direction keys: 50Ω .
Diagram 3- 6 Select Reference Resistance as Measurement Value
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Example 4: dB Measurement
As a common measuring unit, dB has been widely used in electrical
engineering, radio science, mechanics, shock and vibration, mechanical power
and acoustics areas. The following will introduce you how to measure dB
between two circuits.
Operating Steps:
Method 1:
Measure dBm1 and dBm2 existing in two circuits separately according to
Example 3, and then dB could be got:.
dB = dBm1-dBm2
Method 2:
1. Press on the front panel to select AC Voltage measurement
function and choose a proper voltage range.
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as Diagram 2-9.
3. Measure dBm1 according to Example 3.
4. Press →【 dB/dBm】to turn on the dB function and Set parameters
of dB Ref Value (dBm2). At this time, the reading shown on the screen is
the power difference between two circuits.
Diagram 3- 7 Set the Parameters of dB Ref Value
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Method 3:
1. Access the first circuit. Measure dBm2 according to Example 3.
2. Press →【dB/dBm】 to turn on the dB function and select
【Measure Ref Value】 to set the current dBm measurement value as
referred value.
3. Access the first circuit. At this time, the reading shown on the screen is the
power difference between two circuits.
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Example 5: Limits Test
Limits Operation hints you the signal is overstep its range according to the
selected High and Low Limit parameters; meanwhile the beeper makes a
sound to alarm (if sound is on.)
Operating Steps:
1. Press on the front panel to select AC Voltage measurement
function and choose a proper voltage range.
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as Diagram 2-9.
3. Press →【Limits】to set the Limits parameters.
Press【Low】to set the low limit value.
Diagram 3- 8 Set the Low Limit Value
Press【High】to set the high limit value.
Diagram 3- 9 Set the High Limit Value
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4. Turn on the beeper and start Limits Test. As shown in Diagram 3-11. The
measured result is between the Low and High limits, so the test status is
“Pass”.
5. If changing the high limit value to 2V, the measured result is not between
the Low and High limits. So the instrument beep once, and the main
display is red. The test status is “Fail” and High Failures is shown. As the
following diagram shows.
Diagram 3- 10 Limits Test Result
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Example 6: To Use Hold Measurement Function
Reading Hold can help user to obtain a stable reading and hold it on the
display of Front Panel. The reading would be held all the same although
testing pen had been moved away. Then we will introduce how to keep the
readings displayed on screen.
Operating Steps:
1. Press on the front panel to select DC Voltage measurement
function and choose a proper voltage range.
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as Diagram 2-4.
3. Press and to open Hold measurement function interface.
By the time, the screen will record the result of measuring DC voltage, as
shown in the following diagram.
Diagram 3- 11 Result 1
4. Press on the front panel to select AC Voltage measurement
function and choose a proper voltage range.
5. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as Diagram 2-9. By the time, the screen will record the result of
measuring AC voltage, as shown in the following diagram.
88 SDM3045X Digital Multimeter
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