SDM3055
Digital Multimeter

Datasheet
E_04A

Math Function
SDM3055
SDM3055-SC

Product Overview
The SDM3055/SDM3055-SC is a digital
multimeter designed with 5 ½ digits readings
resolution and dual-display, especially fitting tothe needs of high-precision, multifunction andautomatic measurement.

Application fields
Research Laboratory
Development Laboratory
Repair and MaintenanceCalibration LaboratoryGene
Automatic Production Test
General bench-top use

User-Friendly Design4.3” TFT-LCD, 480*272 display
Supports dual-display, Chinese andEnglish Menu
Built-in front panel accessible help system
File management ( support for U-disc andlocal storage )SDM3055 Datasheet

Basic Measurement Function
DC Voltage: 200 mV - 1000 V
DC Current: 200 μA - 10 A
AC Voltage: True-RMS, 200 mV - 750 V
AC Current: True-RMS, 20 mA - 10 A
2/4-Wire Resistance: 200 Ω - 100 MΩ
Capacitance: 2 nF - 10000 μF
Continuity Test: Range is fixed at 2 kΩDiode Test: Adjustable range is 0 - 4V
Frequency Measurement: 20 Hz - 1 MHz
Period Measurement: 1 μs - 0.05 s
Temperature: Support for TC and RTD
sensorMath Function
Max, Min, Average, Standard Deviation,dBm/dB, Relative Measurement, Pass/FailHistogram, TrendChat

Main Features
Real 5½ digits readings resolution( 240, 000 counts )Up to 150 rdgs/s measurement speed
True-RMS AC Voltage and AC Currentmeasuring
1 Gb Nand flash size, Mass storage
configuration files and data files
Built-in cold terminal compensation forthermocouple temperature measurements
With easy, convenient and flexible PC
software: EasyDMM
standard interfaces: USB Host, LAN( Optional Accessories USB-GPIB Adapter )Scanner Card SC1016( Only for SDM3055-SC )Support remote control operation via SCPI
commands. Compatible with commands ofmain stream multimeters.

1Special Features

2Histogram

Trend Chart

Bar Chart

Statistics

Dual Display

Hold MeasurementdBm Hold Measurement

Interface

SDM3055 Datasheet

Specifications
Accuracy± (% of Reading + % of Range) [1]

DC Characteristics

Function

DC Voltage

DC Current

Resistance[3]Diode Test
Continuity Test

1 Year
23 °C± 5 °C

Temperature
coefficient
0 °C~ 18 °C
28 °C~ 50 °C

200 mV

0.015 + 0.004

0.0015 + 0.0005

2V0.015 + 0.003

0.0010 + 0.0005

20 V0.015 + 0.004

0.0020 + 0.0005

200 V

0.015 + 0.003

0.0015 + 0.0005

1000 V[4]0.015 + 0.003

0.0015 + 0.0005

Range[2]Test current or
Load voltage

200 μA< 8 mV

0.055 + 0.005

0.003 + 0.001

2 mA< 80 mV

0.055 + 0.005

0.002 + 0.001

20 mA< 0.05 V

0.095 + 0.020

0.008 + 0.001

200 mA< 0.5 V

0.070 + 0.008

0.005 + 0.001

2A< 0.1 V

0.170 + 0.020

0.013 + 0.001

10 A[5]< 0.3 V

0.250 + 0.010

0.008 + 0.001

200 Ω

1 mA

0.030 + 0.0050.0030 + 0.0006

2 KΩ

1 mA

0.020 + 0.003

0.0030 + 0.0005

20 KΩ

100 μA

0.020 + 0.003

0.0030 + 0.0005

200 KΩ

10 μA

0.020 + 0.010

0.0030 + 0.0005

2 MΩ

1 μA

0.040 + 0.004

0.0040 + 0.0005

10 MΩ

200 nA

0.250 + 0.003

0.0100 + 0.0005

100 MΩ

200 nA || 10 MΩ

1.75 + 0.004

0.2000 + 0.0005

2.0 V[6]1 mA

0.05 + 0.01

0.0050 + 0.0005

4V

100 μA

0.05 + 0.01

0.0050 + 0.0005

2000 Ω

1 mA

0.05 + 0.01

0.0050 + 0.0005Remarks:[1] Specifications are for 0.5 Hour warm-up, “Slow” measurement rate and calibration temperature 18 °C~ 28 °C.
[2] 20% over range on all ranges except for DCV 1000 V, ACV 750 V, DCI 10 A and ACI 10 A.
[3] Specifications are for 4-wire measure or 2-wire measure under “REF” operation. ±0.2 Ω of extra errors will begenerated if perform 2-wire measure without “ REF ” operation.
[4] 30 seconds OFF after 30 seconds ON is recommend foe the continuous current that higher than DC 7 A or AC RMS
7 A.
[5] Accuracy specifications are only for voltage measuring at input terminal. The typical value of current under measureis 1 mA. Voltage drop at diode junction may vary with current supply

SDM3055 Datasheet3Accuracy± (% of Reading + % of Range) [1]

AC Characteristics

Function

Range[2]200 mV

2V

True-RMSAC Voltage [3]

20 V

200 V

750 V

20 mA

200 mA
True-RMS
AC Current [4]2A

10 A[5]

4Frequency
Range

1 Year
23 °C± 5 °C

Temperature
coefficient
0 °C~ 18 °C
28 °C~ 50 °C

20 Hz – 45 Hz

1.5 + 0.100.01 + 0.005

45 Hz – 20 KHz

0.2 + 0.05

0.01 + 0.005

20 KHz – 50 KHz

1.0 + 0.05

0.01 + 0.005

50 KHz –100 KHz

3.0 + 0.05

0.05 + 0.010

20 Hz – 45 Hz

1.5 + 0.10

0.01 + 0.005

45 Hz – 20 KHz

0.2 + 0.05

0.01 + 0.005

20 KHz – 50 KHz

1.0 + 0.05

0.01 + 0.005

50 KHz –100 KHz

3.0 + 0.05

0.05 + 0.010

20 Hz – 45 Hz

1.5 + 0.10

0.01 + 0.005

45 Hz – 20 KHz

0.2 + 0.05

0.01 + 0.005

20 KHz – 50 KHz

1.0 + 0.050.01 + 0.005

50 KHz –100 KHz

3.0 + 0.05

0.05 + 0.010

20 Hz – 45 Hz

1.5 + 0.10

0.01 + 0.005

45 Hz – 20 KHz

0.2 + 0.05

0.01 + 0.005

20 KHz – 50 KHz

1.0 + 0.05

0.01 + 0.005

50 KHz –100 KHz

3.0 + 0.05

0.05 + 0.010

20 Hz – 45 Hz

1.5 + 0.10

0.01 + 0.005

45 Hz – 20 KHz

0.2 + 0.05

0.01 + 0.005

20 KHz – 50 KHz

1.0 + 0.05

0.01 + 0.005

50 KHz –100 KHz

3.0 + 0.05

0.05 + 0.010

20 Hz – 45 Hz

1.5 + 0.100.015 + 0.015

45 Hz – 2 KHz

0.50 + 0.100.015 + 0.006

2 KHz – 10 KHz

2.50 + 0.200.015 + 0.006

20 Hz – 45 Hz

1.5 + 0.100.015 + 0.005

45 Hz – 2 KHz

0.50 + 0.100.015 + 0.005

2 KHz – 10 KHz

2.50 + 0.20

0.015 + 0.005

20 Hz – 45 Hz

1.5 + 0.200.015 + 0.005

45 Hz – 2 KHz

0.50 + 0.20

0.015 + 0.005

2 KHz – 10 KHz

2.50 + 0.20

0.015 + 0.005

20 Hz – 45 Hz

1.5 + 0.150.015 + 0.005

45 Hz – 2 KHz

0.50 + 0.15

0.015 + 0.005

2 KHz – 10 KHz

2.50 + 0.20

0.015 + 0.005

SDM3055 Datasheet

Additional wave crest factor error ( not Sine ) [6]
Wave crest coefficientError (% Range)

1-2

0.05

2-3

0.2

Remarks:[1] Specifications are for 0.5 Hour warm-up, “Slow” measurement rate and calibration temperature 18 °C~28 °C.
[2] 20% over range on all ranges except for DCV 1000 V, ACV 750 V, DCI 10 A and ACI 10 A.
[3] Specifications are for amplitude of sine wave input > 5% of range. For inputs from 1% to 5% of range and < 50 kHz,add 0.1% of range extra error. For 50 kHz to 100 kHz, add 0.1% of range extra error.
[4] Specifications are for sine wave input > 5% of range. 0.1% errors wills be added when the range of input sine wave
is 1% to 5% .
[5] 30 seconds OFF after 30 seconds ON is recommend for the continuous current that higher than DC 7 A or AC RMS
7 A.
[6] For frequency < 100Hz

SDM3055 Datasheet5

Accuracy± (% of Reading + % of Range) [1]Frequency and Period Characteristic

Function

Frequency/PeriodRange

200 mV ~750 V[2]FrequencyRange

1 Year
23 °C±5 °C

Temperature
coefficient
0 °C~ 18 °C
28 °C~ 50 °C

20 Hz – 2 KHz

0.01+0.003

0.002+0.001

2 KHz – 20 KHz

0.01+0.003

0.002+0.001

20 KHz – 200 KHz

0.01+0.003

0.002+0.001

200 KHz –1 MHz

0.01+0.006

0.002+0.002

Remarks:[1] Specifications are for 0.5 Hour warm-up.
[2] Except for special marks, the AC input voltage is 15% to 120% of range when < 100 kHz and 30% to 120% of range
when > 100 kHz. 750V range is limited to 750 Vrms. The accuracy is 10 times % of reading when the measurement
range of AC voltage is in 200 mV range

Accuracy± (% of Reading + % of Range)[1]Capacitance CharacteristicFunction

Capacitance

Temperature
coefficient
0 °C~ 18 °C
28 °C~ 50 °C

Range[2]Max Testing Current

1 Year
23 °C±5 °C

2 nF

200 nA

3 + 1.0

0.08 + 0.002

20 nF

200 nA

1 + 0.5

0.02 + 0.001

200 nF

2 μA

1 + 0.5

0.02 + 0.001

2 μF

10 μA

1 + 0.50.02 + 0.001

200 μF100 μA

1 + 0.5

0.02 + 0.001

10000 μF

1 mA

2 + 0.5

0.02 + 0.001

Remarks:[1] Specifications are for 0.5 Hour warm-up and “REF” operation. Using of non-film capacitor may generate additional
errors.
[2] Specifications are for from 1% to 120% on 2 nF range and ranges from 10% to 120% on other ranges.

Accuracy± (Reading)[1]Temperature Characteristic

Function

Temperature

61Year
23°C±5°C

Temperature
coefficient
0 °C~18 °C
28 °C~50 °C

Probe Type

Probe ModelWorking
Temperature
Range[5]RTD[2]

α = 0.00385-200 °C ~ 660 °C

0.16 °C

0.08 + 0.002

B1100 °C ~ 1820 °C

0.76 °C

0.14 °C

E-150 °C ~ 1000 °C

0.5 °C

0.02 °C

J-150 °C ~ 1200 °C

0.5 °C

0.02 °C

TC[3] [4]SDM3055 Datasheet

K-100 °C ~ 1372 °C

0.5 °C

0.03 °C

N-100 °C ~ 1300 °C

0.5 °C

0.04 °C

R

300 °C ~ 1768 °C

0.5 °C

0.09 °C

S

400 °C ~ 1768 °C

0.6 °C

0.11 °C

T-100 °C ~ 400 °C

0.5 °C

0.03 °C

Remarks:[1] Specifications are for 0.5 Hour warm-up, not include probe error.
[2] Specifications are for 4-wire measure or 2-wire measure under “ REF ” operation.
[3] Relative to cold junction temperature, accuracy is based on ITS-90. Built-in cold junction temperature refers to thetemperature inside the banana jack and its accuracy is ± 3.5 ℃[4] During calibration and verification, "Ref Temp – Ext" is preferred for measurement.
[5] The temperature measurement function can also be applied outside the optimum range, but the measurement
accuracy has certain errors.

Measuring Method and other Characteristics
DC Voltage
Input Resistance

200 mV and 2 V Range

10 MΩ or >10 GΩ selectable

20 V, 200 V and 1000 V Range

10 MΩ ± 2%

Input Bias Current< 90 pA, 25 °C

Input Protection

1000 V on all ranges

CMRR

120 dB ( For the 1 KΩ unbalanced resistance in LO lead, max ± 500 VDC )NMRR

60 dB at “ slow ” measurement rate
20 dB are added if open the “AC” filter

Resistance
Testing Method

4-wire resistance or 2-wire resistance selectable

Input Protection

1000 V on all ranges

DC Current

Shunt Resistor

200 μA sampling voltage < 8 mV
2 mA sampling voltage < 8 mV
1 Ω for 20 mA, 200 mA 1 Ω0.01 Ω for 2 A, 10 A

Input Protection

Rear panel : accessible 10 A, 250 V fast-melt fuse
Internal :12 A, 250 V slow-melt fuseContinuity/Diode Test
Measurement Method

1 mA ±5% constant-current source or open-circuit voltage

Beeperyes

Continuity Threshold

Adjustable

Input Protection

1000 V

True-RMS AC Voltage
SDM3055 Datasheet

7Measurement Method

AC Coupled true RMS measure – up to 1000 V DC bias are permitted on
every range

Wave Crest Factor≤ 3 at full scaleInput Impedance

1 MΩ ± 2% in parallel with <100 pF on all ranges

AC Filter Bandwidth

20 Hz ~ 100 KHz

CMRR

60 dB (For the 1 KΩ imbalance resistance among Lo lead and <60 Hz,
Max ±500 VDC)

True-RMS AC Current
Measurement Method

DC Coupled to the fuse and shunt; AC Coupled the True-RMS
measurement ( measures the AC components only )Wave Crest Factor≤ 3 at full scale

Max Input< 10 A ( include DC component )Shunt Resistor

1 Ω for 20 mA, 200 mA 1 Ω; 0.01 Ω for 2 A, 10 A

Input Protection

Rear panel : accessible 10 A, 250 V fast-melt fuse
Internal :12 A, 250 V slow-melt fuse

Frequency/Period
Measurement Method

Reciprocal-counting technique, AC Coupled input, AC voltage or AC
current measurement function

Measure Attentions

Errors are leaded into all frequency counters when measuring low
voltage or loe frequency signal.

Capacitance Measuring
Measurement Method

Measure the rate of change of voltage generated during the current
flowing the capacitanceConnection Type2-wireInput Protection

1000 V on all ranges

Temperature Measuring
Measurement Method

Support for TC and RTD types of sensorMeasurement
considerations

The built-in cold junction temperature tracks the temperature inside thebanana jack. The change of the temperature in banana jack may cause
additional error. When using the built-in cold junction compensation,connect the sensor terminal of the thermocouple to the banana jack andallow it warm up for more than 3 minutes to minimize the error.

Trigger and Memory
Samples/Trigger

1 ~ 10000

Trigger Delay

6 ms ~ 10000 ms optional

External Trigger Input

VMC
8Input Level

TTL compatible ( High level when left input
terminal is hanging in the air )Trigger Condition

Rising and Falling selectable

Input Impendance≥ 20 KΩ//400 pF ,DC-coupled

Min Pulse

500 usLevel

TTL compatible
SDM3055 Datasheet

Output Polarity

Positive and negative optional

Output Impendance

200 Ω, typicalHistory Records
Volatile Memory

10 K reading of history records

Nonvolatile Memory

1 Gb Nand Flash, Mass storage configuration files and data files,
Support U-disk external storage

Math Functions
Min / Max / Average, dBm, dB, Pass / Fail, Relative, Standard deviation, Hold, histogram,
Trend chart, Bar chart

General Specifications
Power SupplyAC 100 V ~ 120 V

50/60 HzAC 200 V ~ 240 V

50/60 HzConsumption

20 VA max

Mechanism
Dimension

282 mm × 260 mm × 105 mm

Weight3.33 Kg

Other Characteristics
Display Screen

4.3” TFT-LCD with resolution 480 * 272
Full accuracy from 0 °C to 50 °C, 80% RH and 40 °C, non condensing
Storage Temperature: -20 °C - 70 °C

Operation Environment

Shock and Vibration: conforming to MIL-T-28800E, 5 level ( only forsine )Height above sea level: up to 3000 meters

SafetyConforming to IEC61010-1:2001. Measure CAT I 1000 V/CAT II 600V
Class of pollution: 2Remote Interface

USB-GPIB, 10/100 Mbit LAN, USB2.0 Full Speed Device&HostPrograming Language

Standard SCPI, compatible with commands of main stream multimeters

Warm Up Time

30 minutes

SDM3055 Datasheet

9Scanner card SC1016 ( Only for SDM3055-SC )The SIGLENT Scanner Card SC1016 is a multiplexer that provides multi-point measurement
capabilities to the SDM3055-SC. The scanner features 12 multi-purpose + 4 current channels andsupports the following measurement functions: DCV, ACV, DCI, ACI, 2WR, 4WR, CAP, FREQ, DIODE,CONT and TEMP ( RTD and Thermocouple ). It provides a convenient and versatile solution for test
applications that require multiple measurement points or signals and is an ideal tool for R&D burn-inand production testing.

Specifications
To achieve the best performance from the product, please read this guide carefully

Max AC Voltage

125 rms or 175 V peak, 100kHz,
0.3 A switched, 125VA ( resistive load )Contact Life

> 100000 operations, at 1 A 30VDC ( at 0.5Hz )> 100000 operation, at 0.3 A 125VDC ( at 0.5Hz )Contact Resistance

75 mΩ (maximum at 6 VDC, 1A)

Channel to channel switching time

280ms (typical)

Maximum switching voltage

250 VAC, 220 VDC

Maximum switching power

62.5 VA / 30W

Insulation Resistance

Minimum 1 GΩConnect TypeClamp terminal, # 24 AWG wire size

Remark: To avoid eletrical shock and personal injury, please don’t use the product to measure signals that publishedspecification

10SDM3055 Datasheet

Channel Capabilities
Item

No. of wires

No. of channels

DCV \ ACV[1]2 wires ( H, L )12 ( CH1 ~ CH12 )DCI \ ACI[2]2 wires ( H, L )4 ( CH13 ~ CH16 )( 2A Range )2 W Resistance

2 wires ( H, L )12 ( CH1 ~ CH12 )Capacitance

2 wires ( H, L )12 ( CH1 ~ CH12 )Diode / Continuity

2 wires ( H, L )12 ( CH1 ~ CH12 )Period / Frequency

2 wires ( H, L )12 ( CH1 ~ CH12 )Temp ( Thermocouple )2 wires ( H, L )12 ( CH1 ~ CH12 )Temp ( RTD )2 wires ( H, L )12 ( CH1 ~ CH12 )Remark: [1] Voltage range: < 125 VAC, 100 V DC
[2] For continuous current < 2.2 A, Accuracy ± ( % 3 ( reading ) + 0.02% ( range ) ).

Product Model and Distinction
ModelScanner card SC1016

SDM3055

SDM3055-SC×√

Ordering Information
Standard Accessories
Power Cord -1
USB Cable -1
Quick Start -1
Calibration Certificate -1
Test Leads and Alligator Clips -2
Optional Accessories
USB-GPIB

SDM3055 Datasheet

USB-GPIB adapter

11About SIGLENTSIGLENT is an international high-tech company, concentrating on R&D, sales,
production and services of electronic test & measurement instruments.

SIGLENT first began developing digital oscilloscopes independently in 2002.
After more than a decade of continuous development, SIGLENT has extended
its product line to include digital
oscilloscopes,

function/arbitrary

oscilloscopes, isolated handheld

waveform

generators,

RF/MWsignalgenerators, spectrum analyzers, vector network analyzers, digital multimeters,
DC power supplies, electronic loads and other general purpose test
instrumentation. Since its first oscilloscope was launched in 2005, SIGLENT
has become the fastest growing manufacturer of digital oscilloscopes. We
firmly believe that today SIGLENT is the best value in electronic test &measurement.

Headquarters:
SIGLENT Technologies Co., Ltd

Add: Bldg No.4 & No.5, Antongda IndustrialZone, 3rd Liuxian Road, Bao'an District,Shenzhen, 518101, China
Tel: + 86 755 3688 7876
Fax: + 86 755 3359 1582
Email: sales@siglent.com
Website: int.siglent.com

North America:
SIGLENT Technologies America, Inc6557 Cochran Rd Solon, Ohio 44139

Tel: 440-398-5800
Toll Free: 877-515-5551
Fax: 440-399-1211
Email: info@siglentna.com
Website: www.siglentna.com

Follow us on
Facebook: SiglentTech

Europe:SIGLENT Technologies Germany GmbH
Add: Staetzlinger Str. 70
86165 Augsburg, Germany
Tel: +49(0)-821-666 0 111 0
Fax: +49(0)-821-666 0 111 22
Email: info-eu@siglent.com
Website: www.siglenteu.com

12SDM3055 Datasheet