SIGLENT SDM4055A-SC 5.5-DIGIT DIGITAL MULTIMETER WITH SCANNER

Overview

The Siglent SDM4055A-SC is a high-precision 5.5-digit (220,000 count) benchtop digital multimeter integrated with a 16-channel multiplexer scanner card (SC1016). Engineered to meet demanding requirements for high-accuracy, multi-point, and automated measurements, this instrument combines a wide array of mathematical functions with an exceptional 5-inch TFT-LCD capacitive touch screen.

By incorporating the SC1016 scanner card natively, the SDM4055A-SC transforms from a standard benchtop multimeter into a versatile data acquisition system. This system is ideal for component characterization, environmental burn-in testing, quality control, and production-line testing. With a high reading rate of up to 4,800 rdgs/s, comprehensive data logging features, and a modern, user-friendly UI, the SDM4055A-SC delivers deep measurement insights without compromising on setup speed or complexity.

Product Features

Real 5.5-Digit Resolution & 150 ppm Accuracy

Equipped with a true 220,000 count reading resolution and a basic DC voltage accuracy of 150 ppm (0.015% of reading + 0.003% of range). It ensures clean, highly dependable, and repeatable measurements for sensitive analog circuits and components.

Integrated 16-Channel SC1016 Scanner Card

The included SC1016 multiplexer scanner card provides 12 multi-purpose channels and 4 dedicated current channels. It supports a comprehensive range of configurations—including 2-wire and 4-wire resistance, DCV, ACV, DCI, ACI, capacitance, frequency, diode, continuity, and temperature measurements (RTD/Thermocouple)—allowing you to monitor multiple test points simultaneously.

5-inch Touch Display & Multiple Visualization Modes

Featuring an 800x480 resolution capacitive touch display paired with an intuitive UI. View your data across four distinct display modes: traditional numerical values, a real-time bar meter, dynamic trend charts, or detailed histograms to quickly evaluate signal distribution and spot drift patterns.

Advanced Data Logging & Generous Memory

Configure custom data logging sessions with sample intervals ranging from 0.1s to 3600s for up to 100 hours of continuous logging. Save up to 2 million readings directly to the onboard cache memory (512MB RAM with timestamp support) or up to 360 million points directly to internal files (256MB Nand Flash).

Broad Sensor Support & Automated Analysis

Features built-in linear and non-linear sensor curve support for RTDs, thermocouples, and user-defined sensors. Automated math functions—such as Max, Min, Average, Standard Deviation, dBm/dB, and Limit testing—help you quickly move from raw data to actionable compliance records.

Complete Interface Suite & Remote Access

Equipped with standard USB Device, USB Host, and LAN interfaces, with an optional USB-GPIB adapter. It offers native remote access support for VNC servers and web browsers, as well as full compatibility with Siglent's EasyDMM-X host computer control and sampling software.

Technical Specifications

• Measurement Resolution: 5.5 digits (220,000 counts)

• Basic DCV Accuracy (1 Year): +/- (0.015% of reading + 0.003% of range)

• Max. Reading Rate: 4,800 rdgs/s (in Fast mode; supports Fast, Medium, and Slow modes)

• Onboard Memory: 512MB RAM (holds up to 2,000,000 readings with timestamp)

• File Storage Memory: 256MB Nand Flash (for config files, readings, and image data)

• DC Voltage Range: 200 mV to 1000 V

• True-RMS AC Voltage Range: 200 mV to 750 V (Frequency range: 20 Hz to 100 kHz)

• DC Current Range: 200 uA to 10 A (supports auto-switching between 10A high current and 3A low current modes)

• True-RMS AC Current Range: 20 mA to 10 A (Frequency range: 20 Hz to 10 kHz)

• Resistance Range: 200 Ohm to 100 MOhm (supports both 2-wire and 4-wire configurations)

• Capacitance Range: 2 nF to 10 mF

• Frequency / Period Range: 20 Hz to 1 MHz

• Temperature Sensors Supported: RTD (Alpha = 0.00385, -200 to 660 deg C), Thermocouple (B, E, J, K, N, R, S, T)

• Scanner Card Channel Capabilities: * 12 Multi-purpose Channels (CH1 to CH12) supporting DCV, ACV, 2WR, 4WR, CAP, Diode, Continuity, Frequency, and Temperature

  • 4 Dedicated Current Channels (CH13 to CH16) supporting DCI and ACI (2A max range)

  • Scanner Max. AC Voltage: 125 Vrms or 175 V peak, 100 kHz, 0.3 A Switched

  • Maximum Switching Voltage: 250 VAC / 220 VDC
  • Maximum Switching Power: 62.5VA / 30 W

  • Scanner Channel-to-Channel Switching Time: 280 ms (typical)

• Display Screen: 5-inch TFT-LCD touch screen (800x480 resolution, 24-bit color)

• Connectivity Interfaces: USB Device, USB Host (front/rear panel), LAN (10/100 Base-T, LXI-C compliant), External Trigger Input, VMC Output

• Power Supply: AC 100-120 V / 200-240 V (50/60 Hz), 30 VA max consumption

• Dimensions (L x W x H): 379 mm x 260 mm x 103 mm

• Weight: 3.8 kg

Download Siglent SDM4055A-SC datasheet.