Siglent SDM3055-SC Digital Multimeter + Scanner Card, 5.5 Digit, SDM3000 Series

Siglent SDM3055X-SC Digital Multimeter Overview

The Siglent SDM3055X-SC digital multimeter builds on the high-precision SDM3055X platform by adding SC1016 scanner card capability for multi-point measurement applications. Designed for high-precision, multifunction, and automated measurement environments, the SDM3055X-SC provides real 5½-digit reading resolution, dual-display operation, True-RMS AC voltage and current measurement, up to 150 readings per second, and remote operation through standard SCPI commands. With the scanner card, the SDM3055X-SC becomes a more versatile solution for test setups that require multiple measurement points or signals, making it especially useful for R&D burn-in, production testing, development labs, calibration workflows, and automated data collection.

Specifications and Benefits

• 5½-digit resolution with 240,000 counts: Delivers detailed readings for precise bench, lab, and production measurements.

• Up to 150 readings per second: Helps speed up test routines and supports faster automated measurement workflows.

• True-RMS AC voltage and AC current: Provides dependable AC measurements for real-world signals, including non-ideal waveforms within the specified crest-factor limits.

• DC voltage range from 200 mV to 1000 V: Supports low-level signal checks through high-voltage bench measurements in one instrument.

• AC voltage range from 200 mV to 750 V: Enables broad AC voltage testing for lab, service, and production applications.

• DC current range from 200 μA to 10 A and AC current range from 20 mA to 10 A: Covers low-current circuit troubleshooting and higher-current device testing.

• 2-wire and 4-wire resistance from 200 Ω to 100 MΩ: Offers flexible resistance measurement options, with 4-wire support helping reduce lead-resistance error in precision work.

• Capacitance range from 2 nF to 10000 μF: Allows quick component verification across small and large capacitor values.

• Frequency measurement from 20 Hz to 1 MHz and period measurement from 1 μs to 0.05 s: Adds signal-timing capability without requiring a separate counter for many common tasks.

• Temperature measurement with TC and RTD sensor support: Expands the meter’s usefulness for thermal monitoring, validation, and troubleshooting.

• Math functions including Min, Max, Average, Standard Deviation, dBm/dB, Relative, Pass/Fail, Histogram, Trend Chart, Bar Chart, and Hold: Helps users analyze, monitor, and qualify measurements directly from the instrument.

• 1 Gb NAND flash with support for configuration and data files: Makes it easier to store measurement records and manage instrument setup files.

• USB Host, LAN, USB device/host, optional USB-GPIB adapter, and SCPI command support: Simplifies integration into remote-control and automated test environments.

• 4.3-inch TFT-LCD display with 480 × 272 resolution and dual-display support: Improves readability and helps users view related measurements at the same time.

• Safety rating of CAT I 1000 V / CAT II 600 V: Supports safe use within the instrument’s specified measurement categories.

Capabilities of the SDM3055X with the SC1016 Scanner Card

• 12 multi-purpose channels plus 4 current channels: Expands the meter’s usefulness in automated and production test environments by supporting multiple inputs without manually reconnecting leads.

• Supported scanner-card measurement functions: Adds scanner-card support for DC voltage, AC voltage, DC current, AC current, 2-wire resistance, 4-wire resistance, capacitance, frequency, diode, continuity, and temperature measurements using RTD and thermocouple sensors.

• Channel capability for voltage and general measurements: Provides 12 channels for DC voltage, AC voltage, 2-wire resistance, capacitance, diode/continuity, period/frequency, thermocouple temperature, and RTD temperature measurements.

• Dedicated current-channel capability: Provides 4 current channels for DC current and AC current measurements, specified for the 2 A range.

• Scanner-card voltage limits: When using the scanner card for voltage measurements, the channel capability is specified at less than 125 VAC or 100 V DC.

• Continuous-current limitation through the scanner card: Current channels are specified for continuous current below 2.2 A, with scanner-card current accuracy listed as ±(3% of reading + 0.02% of range).

• Channel-to-channel switching time: The scanner card has a typical channel-to-channel switching time of 280 ms, supporting sequential multi-point test routines.

• Switching and contact specifications: The scanner card supports a maximum switching voltage of 250 VAC or 220 VDC, maximum switching power of 62.5 VA / 30 W, contact resistance of 75 mΩ maximum, and minimum insulation resistance of 1 GΩ.

• Best-fit applications: The SDM3055X-SC is better suited than the standard SDM3055X for multi-point testing, R&D burn-in, automated production testing, and test systems that need repeated measurements across multiple channels.

What's in the Box

• SDM3055X-SC Multimeter

• Power Cord -1

• USB Cable -1

• Quick Start -1

• Calibration Certificate -1

• Test Leads and Alligator Clips -2

Siglent SDM3055X-SC FAQ

1. Does the Siglent SDM3055X-SC support automated testing and remote control?
   Yes. The SDM3065X-SC includes USB Device, USB Host, plus a LAN interface, supports remote operation through SCPI commands. These features make it practical for automated production test and remote data collection.

2. What is the difference between the SDM3055X and SDM3055X-SC?
   The SDM3055X-SC includes the SC1016 scanner card, while the standard SDM3055X does not and can't be added later. The scanner card provides multi-point measurement capability with 12 multi-purpose channels and 4 current channels, supporting functions such as voltage, current, resistance, capacitance, frequency, diode, continuity, and temperature measurements for applications that need multiple test points. These usability features help simplify measurement setup, data handling, and daily bench operation for laboratory, development, calibration, maintenance, and production test users.

3. Can the SDM3055X-SC do 4-wire resistance measurements, and are the probes included?
   Yes, it fully supports 4-wire Kelvin resistance measurements. However, the standard package only includes a standard pair of 2-wire test leads and alligator clips. You must purchase specialized Kelvin clip test leads separately to utilize the 4-wire front panel terminals.

4. How do you log data to a PC, and is the software free?
   Yes, the software is free. Siglent provides EasyDMM software for controlling the meter and logging data directly to a PC. The unit also supports standard SCPI commands, allowing you to easily integrate it into custom Python, LabVIEW, or MATLAB automated test scripts using the built-in USB or LAN ports.