SIGLENT TECHNOLOGIES SDM3055 Series Bedienungsanleitung

SDM3055 Series

Digital Multimeter

User Manual

EN03B

SDM3055 Series Digital Multimeter User Manual 
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Contents 
Copyright and Statement................................................................................................................... 1 
General Safety Summary................................................................................................................... 2 
Safety Terms and Symbols ............................................................................................................... 6 
Daily Maintenance and Cleaning...................................................................................................... 7 
Introduction of SDM3055................................................................................................................... 8 
Abstract............................................................................................................................................... 9 
Chapter 1 Quick Start............................................................................................................ 10 
General Inspection...................................................................................................................... 11 
To adjust the Handle................................................................................................................... 12 
Front Panel.................................................................................................................................. 13 
Back Panel.................................................................................................................................. 14 
Power On .................................................................................................................................... 15 
User Interface.............................................................................................................................. 16 
Scan Card ................................................................................................................................... 17 
Chapter 2 Function and Operation...................................................................................... 20 
To Select Measurement Range.................................................................................................. 21 
To Select Measurement Speed.................................................................................................. 23 
Basic Measurement Functions.................................................................................................... 24 
To Measure DC Voltage...................................................................................................... 25 
To Measure DC Current ...................................................................................................... 27 
To Measure AC Voltage ...................................................................................................... 29 
To Measure AC Current....................................................................................................... 31 
To Measure 2-Wire/4-Wire Resistance............................................................................... 33 
To Measure Capacitance..................................................................................................... 37 
To Measure Frequency or Period........................................................................................ 39 
To Test Continuity................................................................................................................ 43 
To Test Diode ...................................................................................................................... 45 
To Measure Temperature.................................................................................................... 47 

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Measurement Parameters .......................................................................................................... 51 
AC Filter............................................................................................................................... 51 
DC Input Impedance............................................................................................................ 51 
Short-circuit Resistance....................................................................................................... 52 
Dual-display Function.................................................................................................................. 53 
Utility Function............................................................................................................................. 56 
Store and Recall................................................................................................................... 56 
Manage File......................................................................................................................... 58 
I/O Configuration.................................................................................................................. 60 
Board Test............................................................................................................................ 61 
Firmware Update.................................................................................................................. 64 
System Setup....................................................................................................................... 64 
Acquire........................................................................................................................................ 67 
Auto Trigger......................................................................................................................... 67 
Single Trigger....................................................................................................................... 68 
External Trigger.................................................................................................................... 69 
Help System................................................................................................................................ 70 
Math Function.............................................................................................................................. 72 
Statistics............................................................................................................................... 73 
Limits.................................................................................................................................... 74 
dBm...................................................................................................................................... 76 
dB......................................................................................................................................... 77 
Relative Value...................................................................................................................... 78 
DisplayMode............................................................................................................................... 79 
Trigger......................................................................................................................................... 83 
Hold MeasurementFunction........................................................................................................ 84 
Chapter 3 Application Examples......................................................................................... 85 
Example1: ReadingStatistic Functions...................................................................................... 86 
Example2: To EliminateLeads Impedance................................................................................ 87 

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Example3: dBm Measurement................................................................................................... 89 
Example4: dB Measurement...................................................................................................... 90 
Example5: Limits Test ................................................................................................................ 92 
Example 6: Thermocouple setting and measurement................................................................ 94 
Example7: To Use Hold MeasurementFunction........................................................................ 96 
Example 8: To Use Application Software EasySDM............................................................... 97 
Chapter 4 Measurement Tutorial......................................................................................... 98 
True RMS AC Measurement....................................................................................................... 98 
Crest Factor Errors(non-sinusoidalinputs)................................................................................. 99 
LoadingErrors (AC Voltage) ..................................................................................................... 100 
Applicationof the Analog Filter.................................................................................................. 101 
Chapter 5 General Troubleshooting.................................................................................. 103 
Chapter 6 Appendix ............................................................................................................ 104 
Appendix A: Accessories.......................................................................................................... 104 
Appendix B: Warranty summary ............................................................................................... 105 
Appendix C: Daily Maintenance and Cleaning.......................................................................... 106 
Appendix D: Contact SIGLENT................................................................................................. 107 
 
 

SDM3055 Series Digital Multimeter User Manual

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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 withoutSIGLENT’s

permission.

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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 observeall ratingsandsigninstructions on theinstrumentto avoid fire or electric shock. Before

connectingtheinstrument, pleaseread the manualcarefullytogain moreinformationaboutthe 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.

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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

61326-1:2021.

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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: 2000Vpk.

⚫LO sense-LO sense protection limitation: 2Vpk.

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

SDM3055 Digital Multimeter provides over-voltage protection for line-voltage mains connections

meeting both of the following conditions toavoid 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 600VAC.

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